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Journal articles on the topic 'Multiband Antenna'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 January 2023

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1

Tiwari, Rahul, and Seema Verma. "PROPOSED A COMPACT MULTIBAND AND BROADBAND RECTANGULAR MICROSTRIP PATCH ANTENNA FOR C-BAND AND X-BAND." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 13, no. 3 (April 16, 2014): 4291–301. http://dx.doi.org/10.24297/ijct.v13i3.2760.

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In this communication two proposed antenna described one for broadband at 6.71445GHz to 11.9362GHz with finite ground plane. The antenna designed with 11.4051mm× 8.388 mm radiating copper patch with ground plane design with 21.0051mm x17. 988mm. And this Compact broadband rectangular shape microstrip patch antenna is designed and analyzed for the return loss of -20.08 dB is achieved at the resonant frequency of 7.941GHz, From Antenna2-it is observed that, antenna for multiband at different frequency. The primary radiating elements are Simple Rectangular Microstrip Patch Antenna in upper side with probe feed and use finite ground plane are two parallel crossed printed slot for three different frequency applications which is smaller in size compared to other available multiband antennas. From the result, it is observed that, the return loss of -16.97 dB is achieved at the first resonant frequency of 4.853GHz, -10.30dB at the second resonant frequency of 8.382GHz, -10.73 dB at the third resonant frequency of 9.265GHz, -17.38 dB at the fourth resonant frequency of 10.15GHz and -12.37 dB at the fifth resonant frequency of 11.91GHz. This broadband and multi-band highly efficient antenna for use in C-Band, and X-Band.
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2

Yadav, Dorik Narayan. "Study of Multiband DRA for Mobile communication." Himalayan Physics 5 (July 5, 2015): 75–77. http://dx.doi.org/10.3126/hj.v5i0.12876.

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The explosive demand for mobile communication and information transfer using personal devices such as mobile phone or notebook computer has caused the need for major advancements of antenna design. With the development of 3G and 4G technologies multiband and wideband antennas operating at additional frequency band such as UMTS and LTE are required. In this chapter it is initially presented the fundamental parameters of antenna to be taken into account while designing an antenna and determining the operating frequency bands. Multiband antennas which are used especially in mobile unit are described. The techniques to make an antenna convenient for multiband operations are given. There different antennas such as monopoles, PIFA are examined with several examples in the literatures. In the last part, the types of wideband antennas (micros strip patch antenna, DRA of planer) used in mobile communication which are more appropriate for base station or access point applications are presented. The Himalayan Physics Vol. 5, No. 5, Nov. 2014 Page: 75-77
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3

Anguera, Jaume, Aurora Andújar, José Luis Leiva, Oriol Massó, Joakim Tonnesen, Endre Rindalsholt, Rune Brandsegg, and Roberto Gaddi. "Reconfigurable Multiband Operation for Wireless Devices Embedding Antenna Boosters." Electronics 10, no. 7 (March 29, 2021): 808. http://dx.doi.org/10.3390/electronics10070808.

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Wireless devices such as smart meters, trackers, and sensors need connections at multiple frequency bands with low power consumption, thus requiring multiband and efficient antenna systems. At the same time, antennas should be small to easily fit in the scarce space existing in wireless devices. Small, multiband, and efficient operation is addressed here with non-resonant antenna elements, featuring volumes less than 90 mm3 for operating at 698–960 MHz as well as some bands in a higher frequency range of 1710–2690 MHz. These antenna elements are called antenna boosters, since they excite currents on the ground plane of the wireless device and do not rely on shaping complex geometric shapes to obtain multiband behavior, but rather the design of a multiband matching network. This design approach results in a simpler, easier, and faster method than creating a new antenna for every device. Since multiband operation is achieved through a matching network, frequency bands can be configured and optimized with a reconfigurable matching network. Two kinds of reconfigurable multiband architectures with antenna boosters are presented. The first one includes a digitally tunable capacitor, and the second one includes radiofrequency switches. The results show that antenna boosters with reconfigurable architectures feature multiband behavior with very small sizes, compared with other prior-art techniques.
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4

Anand, C. "Design of Compact MIMO Multiband Antenna for Wireless Radio Communication Application." September 2021 3, no. 3 (November 25, 2021): 170–81. http://dx.doi.org/10.36548/jsws.2021.3.004.

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Slot and patch modification for the design of a compact multiband antenna with Multi-Input-Multi-Output (MIMO) functionality is proposed in this paper. At various frequency bands, the antenna performance is obtained by modification and addition of slot and patch shapes in the design of the compact MIMO multiband antenna. Addition of slots or patches is done separately in the already existing multiband antenna designs. Whereas in this work, the addition of slot and patch are combined. Arlon Diclad 880 with a dielectric constant of 2.17 - 2.2 (εr) and height 0.75mm is used for the antenna design. The MIMO multiband antenna with the dimension of 12.5 mm × 7.5 mm is designed. On various millimeter-wave frequency bands ranging from 20 GHz to 40 GHz, the MIMO antenna can function as observed in the results of simulation and evaluation. This work shows that microstrip antennas can be added with slots and patches during their design and development, thereby enabling the antenna to operate under multiple frequency bands.
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5

M, Vasujadevi, K. Akhil Teja, G. Divya, VV Sai Shanmukh, and K. R Dheeraj. "Fractal Antenna Design for Multiple Applications." International Journal of Engineering & Technology 7, no. 2.7 (March 18, 2018): 602. http://dx.doi.org/10.14419/ijet.v7i2.7.10889.

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The sudden development in in wireless applications has leveled up the use of antennas. Multiband antennas are used to operate at different frequencies for the reliability in various applications. This paper presents design of a novel fractal antenna for multiband applications. Attributes of proposed antenna are simulated using Ansoft HFSS. Due to the homogeneous property in the design of proposed fractal receiving wire it has the various multiband applications. Proposed Antenna design consists of FR4_epoxy material with dielectric constant of 4.4, height 1.6 mm. The operating frequency is taken as 2.4GHz. The antenna is simulated. The proposed antenna resonates at different frequencies. The results are measured and return losses are compared. Here the geometry of fractal antenna is analyzed for the C band resonating at 6.2 GHz, X band resonating at 11.9 GHz and Ku band resonating at 13.8 GHz for S11<-10db.
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6

Kandwal, Abhishek, Jai Verdhan Chauhan, and Sunil Kumar Khah. "Multiband-coupled sectoral antenna using high and low dielectric constant substrates." International Journal of Microwave and Wireless Technologies 7, no. 6 (July 24, 2014): 721–26. http://dx.doi.org/10.1017/s1759078714000919.

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Design analysis of multiband-coupled stacked sectoral antenna array with finite ground plane using high low dielectric constant substrates is proposed in this paper for modern communication systems and applied physics. Multiband planar antennas have been extensively developed due to demands for integration of wireless communication systems. In this paper, we present the design and development of a multiband microstrip antenna array with parasitic coupling and stacking using two different substrates. The stacked designed antenna resonates at three different frequencies: 3.8, 5.4, and 10 GHz; therefore, showing a multiband property with good radiation (far-field) characteristics. A significant comparison study is also presented considering different dielectric constant substrates. The proposed antenna is an attractive solution for different wireless communication systems such as mobile systems, satellite systems, etc.
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7

Kumar, Somesh, and Ms Monika. "Study of Effect of Variations in slot dimensions on Fractal Patch antenna Performance." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 5, no. 1 (June 23, 2013): 41–48. http://dx.doi.org/10.24297/ijct.v5i1.4385.

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An antenna is a device that is made to efficiently radiate and receive radiated Electromagnetic waves. Microstrip antennas are attractive due to their light weight, conformability and low cost. These antennas can be integrated with printed strip-line feed networks and active devices. This is a relatively new area of antenna engineering. For reducing the size of antenna, fractal geometries have been introduced in the design of patch antenna. Fractal antennas also called as space filling curves are very compact, multiband or wideband, and have useful applications in cellular telephone and microwave communications. In our research work, we have used IE3D software for designing the antenna. We study the effect of variations of slot dimensions on antenna performance so as to obtain good results. In this research work, four different fractal patch antennas are designed. The rectangular base geometry is same for the all four antennas but the elliptical slot dimensions differ. In simulation, S parameters of all four antennas are analyzed. From the S parameter displays, comparison of all four antennas is done on the basis of three parameters that are: Lowest frequency, Multiband and S11 values. The simulation results shows that as the elliptical slot dimension decreases on rectangular patch antenna, the performance of fractal patch antenna improves on the basis of three factors that are lowest frequency, multiband and s11 values.
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8

Dr. R. Gayathri, K. Mahendran,. "PERFORMANCE IMPROVED TRIANGULAR MULTI BAND ANTENNA USING REACTIVE IMPEDANCE SUBSTRATE AND FREQUENCY SELECTIVE SURFACE." INFORMATION TECHNOLOGY IN INDUSTRY 9, no. 1 (March 3, 2021): 486–92. http://dx.doi.org/10.17762/itii.v9i1.159.

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In modern world, communication devices need to be operated for more than one frequency bands. Lot of research works were carried out in the field of multiband antennas. The one major concern in the design of multiband patch antenna are the gain and bandwidth. Both gain and bandwidth of the multi band antenna can be improved for the better performance. In this paper a triangular multiband antenna is designed and the gain of the antenna is enhanced by the blend of reactive impedance surface and Frequency selective surface. The proposed antenna resonates 3.4 GHz, 4.2 GHz, 6.75 GHz,7.1 GHz, 7.5 GHz and 9.3 GHz with a better return loss and gain.
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9

Beigi, Payam, Yashar Zehforoosh, Mirhamed Rezvani, and Javad Nourinia. "Evaluation of a compact triangular crinkle-shaped multiband antenna with circular polarized for ITU band based on MADM method." Circuit World 45, no. 4 (November 4, 2019): 292–99. http://dx.doi.org/10.1108/cw-04-2019-0040.

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Purpose This paper aims to present a new triangular crinkle-shaped multiband antenna for multiband operation. Design/methodology/approach This paper refers to increasing the number of resonance frequency by appending triangular crinkle. Experimental frequency results of the presented antenna are 1.60/2.80/4.00/5.80/7.12/8.32/10.06 GHz. Findings The triangular shaped antenna is manufactured on a low-priced FR-4 substrate with small size and tested. The reported antenna with full size 14 × 14 mm2 with a half elliptical ground sheet on the bottom plane of the substrate and a triangular crinkle strip patch in the front of the substrate. The reported antenna has dual polarized, by rectangular slits on the ground sheet can produce the CP radiation on ITU band. The radiation characteristics indicate the mentioned antenna plays good task for multiband structures. Simulation and measured consequences are in desirable agreement and refer to agreeable operation for the introduced antenna. Originality/value Also, an evaluation is done based on multiple attribute decision-making method for comparison the proposed monopole antenna with some previously presented multiband monopole antennas.
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10

Surducan, E., V. Surducan, D. Iancu, and J. Glossner. "Multiband Antennas for SDR Applications." International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–9. http://dx.doi.org/10.1155/2009/460143.

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We present multiband antennas configurations for SDR applications. Using a composite folded dipole structure as starting point, we derived more complex antenna configurations to support multiple communication protocols for mobile application with linear and circular polarizations. Prototypes as single antenna with circular polarization, tunable single antenna with PIN diode and MIMO systems with three and four antennas, all derivatives of the same basic structure, were produced in an iterative fashion until the desired parameters were achieved. These antennas are suitable for microstrip circuit realizations and can be included in the printed circuit board (PCB) of the device, or used as stand alone. The shapes and measurement results are presented throughout the paper. From the illustrated graphs it can be seen that the stand-alone antennas exhibit positive gain for all the frequency bands of interest while the separation between antennas, for the multiple-input multiple-output (MIMO) case, is better than 15 dB.
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11

S. Nageswara Rao, B., and E. E. Srinivasa Murthy. "Design of Multiband Fractal Antenna." International Journal of Engineering & Technology 7, no. 2.20 (April 18, 2018): 295. http://dx.doi.org/10.14419/ijet.v7i2.20.14782.

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Fractal is a fragmented geometry which can be segmented into various parts, each part will be the miniature copy of the whole. The main advantages of fractal antennas are its reduced size and multiband operation. These structures have self-similarity properties and fractional dimensions. The self-similar geometrical nature of fractal facilitates the antenna design to achieve multiband applications. The proposed fractal antenna can be operated in different frequencies and 2 frequency bands. The obtained frequency bands are X- band and Ku- band. The proposed antenna has been designed, simulated and analyzed by using HFSS (High Frequency Structural Simulator) software 15.0.
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12

Haider, N., D. Caratelli, and A. G. Yarovoy. "Recent Developments in Reconfigurable and Multiband Antenna Technology." International Journal of Antennas and Propagation 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/869170.

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A comparative analysis of various reconfigurable and multiband antenna concepts is presented. In order to satisfy the requirements for the advanced systems used in modern wireless and radar applications, different multiband and reconfigurable antennas have been proposed and investigated in the past years. In this paper, these design concepts have been classified into three basic approaches: tunable/switchable antenna integration with radio-frequency switching devices, wideband or multiband antenna integration with tunable filters, and array architectures with the same aperture utilized for different operational modes. Examples of each design approach are discussed along with their inherent benefits and challenges.
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13

Yao, Yuan, Xing Wang, and Junsheng Yu. "Multiband Planar Monopole Antenna for LTE MIMO Systems." International Journal of Antennas and Propagation 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/890705.

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A novel multiband-printed planar monopole antenna for LTE multi-input and multi-output (MIMO) application is proposed. A meandering microstrip line-loaded monopole antenna with multiband characteristic is presented. The proposed antenna provides five frequency bands for LTE application, covering 0.7, 1.7, 2.1, 2.3, and 2.5 GHz. In order to provide low mutual coupling and envelope correlation, two of the antennas are combined with orthogonal polarizations. The mutual coupling of the antenna is lower than −13 dB across the operation bands. Both the simulated and measured results are shown to illustrate the performances of the proposed antenna.
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14

Prasad, L., B. Ramesh, K. S. R. Kumar, and K. P. Vinay. "Design and Implementation of Multiband Microstrip Patch Antenna for Wireless Applications." Advanced Electromagnetics 7, no. 3 (August 19, 2018): 104–7. http://dx.doi.org/10.7716/aem.v7i3.646.

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Multiband phased array antennas are required for today’s multi-function communication applications. Generally Microstrip antenna arrays like Kotch array, Sierpinski array are used, but in some circuits where space is limited, arrays are not used. Therefore, to achieve the multiband operation with limited space, an antenna is designed with E-shaped in combination with split ring resonator to achieve the multiband operation. The simulation and experimental results show that the proposed antenna operates at four different frequencies, 1.8GHz, 3.6GHz, 4.53GHz and 5.73GHz, which can be used for different wireless applications like GSM 1800 (1.71– 1.78 GHz), WiMAX (3.4-3.69GHz) -IEEE 802.16 standards, Wi-Fi/WLAN (5.15-5.82 GHz). All the simulation results like resonant frequency, return loss, radiation patterns and fabricated antenna measured result is presented in this paper. The antenna is simulated using CST 2014 software.
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15

Khan, Mohd Nadeem, and Atal Kumar Rai. "Star Shape Slotted Microstrip Patch Antenna for Wireless Application." International Journal of Advance Research and Innovation 3, no. 1 (2015): 70–73. http://dx.doi.org/10.51976/ijari.311512.

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In this paper three rectangular microstrip patch antennas is designed on the FR4 glass epoxy substrate having the thickness of 1.6 mm. The two antennas contain slots in the form of six corner star. The feeding techniques used in all designs are probe feed. The multiband behavior of printed antennas is analyzed using two slotted structure of rectangular patch antenna. The perposed patch antennas cover the multiband behavior from 1.6 GHz to 6 GHz. The designed antennas are simulated using IE3D electromagnetic simulator. The electrical parameter of the antenna such as return loss, radiation pattern and VSWR exc. are investigated .The simulated antennas is used for wireless application such as IEEE 802.11 (a,b,g and n).
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16

Sivasundarapandian, S., and C. D. Suriyakala. "A planar multiband Koch snowflake fractal antenna for cognitive radio." International Journal of Microwave and Wireless Technologies 9, no. 2 (September 4, 2015): 335–39. http://dx.doi.org/10.1017/s1759078715001324.

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This paper of lettering reveals about a modified Koch snowflake fractal multiband antenna for cognitive radio applications. Multiband antennas can be employed for spectrum sensing in cognitive radio. This new microstrip-modified Koch fractal antenna exhibits multiple actions in four dissimilar resonant frequencies at 3.2, 5.2, 6, and 9.5 GHz correspondingly that covers the frequency bands such as S, C, and X bands. Its multiband behavior was analyzed by designing and simulating in ADS EMDS software. Three iterations were carried out to study the performance of modified Koch snowflake fractal antenna. The outer ring and a small rectangular slot in the center of the antenna are used for 50 Ω impedance matching and to increase the number of resonant frequencies. The fractal antenna parameters such as gain, directivity, and its radiation pattern are also analyzed in this paper. The measured results show good agreement with the simulated results.
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17

Wang, Y., M. Reit, and W. Mathis. "Entwurfskonzept einer Car2Car-Multiband-Dachantenne." Advances in Radio Science 10 (September 18, 2012): 63–68. http://dx.doi.org/10.5194/ars-10-63-2012.

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Abstract. Due to the vastly increasing use of wireless services in the car, such as WiFi, Car2Car and LTE, the requirements on bandwidth and radiation pattern of the roof antenna systems become more challenging. In this work, a design concept for multi-band roof antenna systems is presented. We aim to get a higher bandwidth and an almost circular radiation pattern on the horizontal plane. Moreover, the antenna length is considered in order to fulfill the requirements set by construction ECE-regulations (ECE, 2010). The applicability of the design concept is not limited to multi-band roof antennas, it can also be used for a general wideband antenna design. For illustration of this concept, a multi-band roof antenna with a bandwidth of 780 MHz to 5.9 GHz and a near circular radiation pattern with an average gain of G = 3 dBi (at 5.9 GHz) on the horizontal plane is designed. The simulation and measurement results are presented.
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18

Das, Pratibha, and Usha Kiran Kommuri. "MINIATURIZED MULTIBAND MIMO ANTENNAS FOR WIRELESS APPLICATION." Asian Journal of Pharmaceutical and Clinical Research 10, no. 13 (April 1, 2017): 211. http://dx.doi.org/10.22159/ajpcr.2017.v10s1.19640.

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The objective of this paper is to design a miniaturized and multiband multiple input multiple output (MIMO) antenna using slotting technique whichcan be used for many devices such as cell phones and microwave radio relay. The MIMO antenna module consists of four microstrip antennas whichare arranged in two MIMO antenna pairs. Reduction in size, multi-broadband, moderation in gain, and good efficiency are obtained. The main aimis to reduce mutual coupling while optimizing the antenna size. The present work would be aimed at designing an antenna which is used mainly forwireless applications [1].
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19

Jung, Young-Bae, and Soon-Young Eom. "A Compact MultiBand and Dual-Polarized Mobile Base-Station Antenna Using Optimal Array Structure." International Journal of Antennas and Propagation 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/178245.

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This paper introduces a multiband base-station antenna to provide multiple communications services. There is growing need for multiband base-station antennas for mobile communications to serve existing 2nd and 3rd generation systems and to provide emerging 4th generation communication service as well as WiFi. For example, cellular, PCS, and especially WCDMA service are currently widely used in Korea, and 4th generation service (WiBro and LTE), introduced in 2011, will have to operate in parallel with existing services. The proposed multiband base-station antenna can provide a single/dual/triple or more multiple services using dual-polarization (±45° linear polarizations) according to the requirements of the service provider. This antenna has a shared aperture, having several array antenna sets for multiple services (Band 1: cellular service in 0.824~0.894 GHz, Band 2: PCS, WCDMA, and WiFi in 1.920~2.170 GHz, Band 3: WiBro and WiMAX in 2.300~2.400 GHz, and Band 4: WiMAX in 5.150~5.850 GHz). This antenna can be helpful for reducing base-station operating expenses and to create a clean urban landscape by minimizing the number of base-station antennas, which are increasing rapidly.
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Nag, Vibha Raj, and Mrinal Sarvagya. "Review Paper on Different Dual Band Printed Slot Antenna for 5G Wireless Communication." International Journal of Informatics and Communication Technology (IJ-ICT) 7, no. 3 (December 1, 2018): 105. http://dx.doi.org/10.11591/ijict.v7i3.pp105-110.

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<span>With advancement in communication technology over the past decade, there is an increasing demand for miniaturization, cost effective, multiband and wideband antennas. Dual band printed slot antenna designs can support in meeting these requirements. Various techniques, different shapes and geometries have been introduced for size reduction of dual band printed slot antennas. This paper is on various techniques for designing dual band printed slot antenna exhibits details of different geometries developed to get multiband behavior of printed slot antenna. In this paper geometry of the antenna and variousparameters such as return loss plot, gain plot, radiation pattern plot and VSWR plot are discussed. In this paper the review on various techniques of compactness by geometry on different shapes of printed slot antenna for 5G next generation wireless (NGW) mobile application are presented</span>
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21

Xu, Ziyu, Qisheng Zhang, and Linyan Guo. "A printed multiband MIMO antenna with decoupling element." International Journal of Microwave and Wireless Technologies 11, no. 4 (March 1, 2019): 413–19. http://dx.doi.org/10.1017/s1759078719000096.

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AbstractA printed multiband Multi-Input Multiple-Output (MIMO) antenna is proposed in this paper. This MIMO antenna system comprises two symmetric printed monopole antennas. Each antenna element consists of multiple bend lines, producing four resonant modes and covering the GSM900, PCS, LTE2300, and 5G bands. Simulated and measured results prove that the proposed MIMO antenna can be applied to traditional 2G, 3G, 4G, and present 5G mobile communication. By etching four inverted L-shaped grooves on its ground plate, mutual coupling between the adjacent antenna elements has been suppressed. This makes the |S21| at all four resonant modes is lower than −40 dB. In addition, its low coupling mechanism has been analyzed by surface current distribution. The designed multiband MIMO antenna provides an idea of reference to realize low mutual coupling between antenna elements, which is also realizable in infrared or optical regimes with appropriate designs.
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22

Akkole, Suresh, and N. Vasudevan. "Design and Optimization of E Shape Multi Band Microstrip Patch Antenna Using Fractal Geometry for Wireless Communication." Journal of Computational and Theoretical Nanoscience 17, no. 5 (May 1, 2020): 2409–14. http://dx.doi.org/10.1166/jctn.2020.8905.

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In this paper an E shaped multiband fractal microstrip antenna proposed. The proposed E structure uses self similar fractal concept. The geometry is extended up to two iteration which resonates at seven multiband frequencies. The proposed antenna operates in 1–2 GHz (L-band), 2–4 GHz (S-band) and 4–8 GHz (C-band) frequencies and finds uses for military and secure long distance communication and C band frequency uses like satellite communication, Wi-Fi, and Radio Detection and Ranging. All designed antennas are optimized by IE3D antenna simulation tool with FR-4 material having 4.4 dielectric constant and loss tangent = 0.02. The parameters of all antennas have been examined in terms of directivity, VSWR, return loss, resonant frequency, bandwidth and gain.
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23

Pal, Debasish, Rahul Singhal, Abhishek Joshi, and Ayan Kumar Bandyopadhyay. "Multiband planar antenna with CSRR loaded ground plane for WLAN and fixed satellite service applications." Frequenz 74, no. 11-12 (November 26, 2020): 393–99. http://dx.doi.org/10.1515/freq-2020-0012.

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AbstractIn this paper, a novel approach to achieve multiband antenna operation using metamaterial based resonant structures is presented. Multiband antenna operation is achieved by employment of complementary split ring resonators (CSRR) printed in the ground plane. The CSRRs resonate at different frequencies according to their optimized dimensions. Proposed approach features simple design and fabrication possibility compared to other methods of achieving multiband antenna operation such as usage of composite right/left-handed (CRLH) transmission line or split ring resonators (SRR) or CSRR around the patch surface. The proposed method is demonstrated through simulation and experimental measurements using three CSRRs with different resonant frequencies together with a tuning CSRR and a radiating patch. Contribution of different CSRRs to obtain multiple resonances have been shown by surface current plots. Measured antenna gain of 2.78, 1.27 and 3.45 dB has been obtained at frequencies of 5.25, 6.28 and 7.29 GHz respectively. The measurements done on developed antenna exhibits close agreement with the simulation results. In context with the current communication application trends involving multiple operating bands like 5G, this approach may have immense application potential since the same can be adopted to achieve compact multiband antennae operation in other frequency bands of interest.
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Gupta, Ankush, Hem Dutt Joshi, and Rajesh Khanna. "An X-shaped fractal antenna with DGS for multiband applications." International Journal of Microwave and Wireless Technologies 9, no. 5 (September 9, 2016): 1075–83. http://dx.doi.org/10.1017/s1759078716000994.

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In this paper, an X-shaped fractal antenna with defected ground structure (DGS) is presented for multiband and wideband applications. The X shape is used due to its simple design and DGS is utilized to achieve size reduction with multiband and wideband features in the frequency range of 1–7 GHz. The proposed structure is fabricated on FR4 substrate with 1.6 mm thickness. We have proposed two different antennas both are having X-shaped fractal patch with a slotted ground plane to have more impedance bandwidth and better return loss. Various parameters like scale factor, width of ground plane, number of slots with their dimensions and feed line length are optimized to have size reduction and for enhancing the performance of antenna. Reflection coefficient shows the multiband and wideband features of proposed antenna. One of the proposed antennas covers various applications like IEEE802.11y at 3.65 and 4.9 GHz, IEEE 802.11a at 5.4 GHz, 802.11P at 5.9 GHz. Other antenna covers applications like IEEE802.16 at 3.5 GHz; 5 cm band for amateur radio and satellite and future 5 G communication systems over 6 GHz. The antenna designing was done using CST software and simulation results were compared with experimental results (using E5071C network analyzer).
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25

Djouablia, Linda, Aziza Zermane, and Kamel Menighed. "Investigation of Multi-Band Reconfigurable Triangular Microstrip Antenna on Magnetic YIG Substrate." ASM Science Journal 17 (December 8, 2022): 1–8. http://dx.doi.org/10.32802/asmscj.2022.1234.

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Reconfigurable antennas based on magnetised ferrite substrate and electronic components present a remarkable interest for nowadays antennas. The present research contribution deals to investigate an efficient multiband tuneable triangular microstrip antenna with acceptable characteristics, able to operate from 2.6 GHz to 5.8 GHz requiring frequency and polarization agility by dual reconfigurability using a YIG (Yttrium Iron Garnet) substrate and PIN diode. Different magnetic bias fields were applied to the proposed antenna for ON and OFF states. The obtained results and analysis demonstrate the efficiency of magnetic frequency tuning and a high stability of the radiated field, the antenna bandwidth can reach 1300 MHz for ON state, and a maximum tuning range close to 550 MHz is observed. The proposed antenna design exhibits a linear polarization and stable E and H–plane radiation pattern performance at resonance frequencies over the operating bands. These characteristics make the antenna suitable for multiband wireless communications requiring frequency agility.
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Al Jewad, Bessam. "A Multiband Biconical Log-periodic Antenna for Swarm Communications." Cihan University-Erbil Scientific Journal 3, no. 2 (August 20, 2019): 85–91. http://dx.doi.org/10.24086/cuesj.v3n2y2019.pp85-91.

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In this paper, we present a specific multiband antenna design that addresses the problem of communication with unmanned aerial vehicles (UAVs). We consider a scenario where multiband single-antenna UAV communicates with the rest of the swarm members that are equipped with similar antennas. The key point in the design is that the communication does not require high or low elevation angles in most of the cases. The suggested design has a sufficient degree of freedom to select the desired features for the field pattern while keeping other features such as antenna impedance and gain relatively stable or at least in the acceptable operation region.
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27

Walbeoff, A., and R. J. Langley. "Multiband PCB antenna." IEE Proceedings - Microwaves, Antennas and Propagation 152, no. 6 (2005): 471. http://dx.doi.org/10.1049/ip-map:20050053.

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28

Nibir, Rauful, Islam Md Rafiqul, Mohamed Hadi Habaebi, Sarah Yasmin, Naimul Mukit, Sarah Rafiq, and Abdinasir S. O. "Multiband antenna using stacked series array for Ka-Band application." Bulletin of Electrical Engineering and Informatics 8, no. 3 (September 1, 2019): 1004–13. http://dx.doi.org/10.11591/eei.v8i3.1519.

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In this paper, a multiband stack series array antenna is designed in order to attain solutions for the future 28 GHz Ka-band application. Double layer substrate Technology is utilized to accomplish multiple resonant frequencies with higher data transfer capacities due to high bandwidth. The designed antenna is dependent on twofold layer consisting patches and resonators in different layers stacked together. The designed multiband antennas can resonate at single band of (28 GHz), dual band of (28 and 30 GHz) and triple band of (24.18, 26 and 28.453). The results achieved in the simulation are later fabricated and tested. The test result illustrates that the antennas have wide bandwidth, high gain and even higher efficiencies. All the proposed antenna configurations have demonstrated a decent possibility for 5G millimeter wave (mmwave) application.
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Sivabalan, A., G. Keerthi Vijayadhasan, T. Thandapani, and R. Balamurali. "Design of Frequency Reconfigurable Multiband Compact Antenna." Journal of Computational and Theoretical Nanoscience 17, no. 8 (August 1, 2020): 3671–75. http://dx.doi.org/10.1166/jctn.2020.9256.

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This paper describes about the designing of a reconfigurable antenna which operates at different frequencies fulfilling the requirement of 1 to 10 GHz WLAN and 3.5 GHz WIMAX antenna applications. The main objective of this research is to minimize the usage of Antennas used in mobile phones for various applications covering 1G, 2G, 3G, 4G, Wi-Fi and Bluetooth. This reconfigurable multiband antenna is used for applications such as WiMAX/WLAN and it has 2 PIN diode switches. The proposed antenna has been analyzed using ADS (Agilent advanced design system) software and fabricated on an FR-4 substrate. The proposed model has a compact structure with an area of about 50 x 45 mm2, and has a slotted ground substrate.
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30

D., Roopashree, Shruthi K. N., R. Bhagyalakshmi, and Chaithra K. N. "Design and Minimization of Mutual Coupling Steered Array Lens Antenna for 5G Communication." WSEAS TRANSACTIONS ON ELECTRONICS 13 (December 31, 2022): 147–58. http://dx.doi.org/10.37394/232017.2022.13.20.

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Examining and evaluating the improved microstrip patch antenna to enhance the performance by the initial objectives are the main contribution of this paper. To achieve multiband operation, the patch's shape is first adjusted later microstrip patch with the slot presented. With the help of the Ansoft HFSS antenna simulator, functional analysis has been shown to examine the impact on antenna resonant frequency. A probe-driven microstrip patch antenna imprinted on FR4 epoxy substrate with 1.6mm thickness and a dielectric constant of 4.4 is developed in this work via the HFSS tool for wireless applications operating between 2 to 5GHz. To achieve multiband operation, the structure of the patch is varied. The impacts on antenna resonant frequency are examined through numerical simulations. The length, as well as the width of a traditional patch antenna, is initially computed, and further, an appropriate patch dimension of 28.3mm x 36.9mm has been determined. For multiband operation over the frequency ranging between 2 and 5GHz wireless applications, a probe-driven microstrip patch antenna imprinted on FR4 epoxy substrate with 1.6mm thickness and a dielectric constant of 4.4 is built via the HFSS tool. The proposed architecture of a traditional microstrip patch antenna is imprinted on an FR4 epoxy substrate with a 1.6mm thickness and a 4.4 dielectric constant. The proposed antenna design is illustrated for the 3D structure of the Mutual Coupling Steered Array-Lens Antenna System (MPA) with an improved patch. To achieve multiband operation, two slots are inserted on the edges of the patch, and both the slots are 2mm wide, as well as the depth of the slots is modified to see how it corresponds to the resonant frequency. This work is mainly concentrated on (i) Examining as well as evaluating the improved microstrip patch antenna to enhance its performance, (ii) Examining, evaluating, as well as assessing the performance of an improved split ring resonator metamaterial, and (iii) Exploring, analyzing, as well as evaluating the performance of dielectric lens base patch array antennas and (iv) Developing as well as analyzing the transmission line phase shifter. The groundwork for developing this work is being carried out, and a comparative study is made on (i) techniques for improving the antenna's performance through the application of a modified patch antenna, a Modified split ring resonator, a Dielectric lens structure, and Transmission line phase shifter.
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31

Dash, Rajib Kumar, Puspendu Bikash Saha, Dibyendu Ghoshal, and Gopinath Palai. "Design of triangular shaped slotted patch antennas for both wideband and multiband applications." International Journal of Applied Electromagnetics and Mechanics 68, no. 3 (March 14, 2022): 275–94. http://dx.doi.org/10.3233/jae-210098.

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In this article two fractal geometry-based slotted patch antennas are designed to achieve wideband response with multiband characteristics and reduced cross polarized radiation in both E- and H-plane for all the resonating bands. The proposed antennas are fed with microstrip line feeding formed on a FR4 substrate of size 0.25𝜆0 × 0.25𝜆0 × 0.02𝜆0 mm3 and loaded with a partial ground plane at the bottom of the substrate. HFSS is used to design and simulate both the antennas. Wideband behavior and impedance matching of Antenna-1 are improved by optimizing the factor of iteration and length of the ground plane. Due to addition of 3 identical split ring resonators (SRR) with the antenna geometry leads to achieve multiband response in Antenna-2. The dimensions of the SRR connectors and feedline have been optimized through parametric analysis to match the impedance properly at all the three resonating bands. It has been found that simulated and measurement results of both the antennas are properly matched.
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Sivaraks, Jesada, and Settapong Malisuwan. "Multiband Antenna Formed of Superimposed Compressed Loops." Applied Mechanics and Materials 548-549 (April 2014): 780–84. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.780.

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A compressed multiple band loop antenna that has multiple superimposed compressed loops. Each compressed loop is formed from numerous segments arrayed in multiple diverse directions so that the enclosed area of that loop and the overall size of the antenna are decreased. Multiple loops are arrayed and superimposed to provide multiple frequency bands of operation and are used to broaden the useful bandwidth of individual-bands. The small size of the compressed antenna facilitates its use in small mobile communications devices requiring internal antennas that operate in close proximity to conductive surfaces. Multiple loops are arrayed in several configurations that include nested and non-nested loops as well as closely located and spatially separated superimposed loops.
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33

Yang, Cheng, Yuan Yao, Junsheng Yu, and Xiaodong Chen. "Novel Compact Multiband MIMO Antenna for Mobile Terminal." International Journal of Antennas and Propagation 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/691681.

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A novel compact MIMO antenna for personal digital assistant (PDA) and pad computer is proposed. The proposed antenna is composed by two multipatch monopole antennas which are placed 90° apart for orthogonal radiation. To strengthen the isolation, a T-shaped ground branch with proper dimension is used to generate an additional coupling path to lower the mutual coupling (below −15 dB), especially at GSM850/900 band. The proposed MIMO antenna is fabricated and tested, both the simulated and the measured results are presented, and some parametric studies are also demonstrated. In addition, there are some advantages about the proposed antenna such as simple structure, easy fabrication, and low cost.
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34

Labiad, Abdelhadi, Khadidja Bouras, and Mouloud Bouzouad. "Metamaterials Reconfigurable Multiband Antenna." Advanced Science, Engineering and Medicine 11, no. 11 (November 1, 2019): 1097–99. http://dx.doi.org/10.1166/asem.2019.2460.

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In this paper a Metamaterials Reconfigurable Multiband Antenna is designed. The design consists of a rectangular patch antenna surrounded by an arrangement of cross shaped metamaterials cells that have two different behaviours and can be controlled electronically in order to switch between the two different behaviours; therefore, the antenna will have a controllable size according to the surrounding area behaviour. The obtained results show that the antenna operates at different frequencies. We demonstrate the possibility to design a metamaterials based frequency agile antenna.
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35

Vincy Lumina, A., and M. Sangeetha. "Multiband Monopole Antenna Design for 2G-5G Applications." Journal of Physics: Conference Series 2335, no. 1 (September 1, 2022): 012010. http://dx.doi.org/10.1088/1742-6596/2335/1/012010.

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Abstract Multi frequency antennas are in high demand as the wireless communication system is developing rapidly. To access internet in a mobile device, 2G-5G and WLAN are used that covers 1.8 GHz – 6 GHz. This paper proposes a design of low profile multiband monopole antenna for all 2G-5G communications, WLAN and for WiMAX application. The antenna design has a diamond shaped radiator, a cylinder to achieve better resonance, and a defective ground. The proposed antenna has a compact size of 30 mm x 44.5 mm. This antenna covers 2G (1.8 GHz), 3G (2.1 GHz), 4G (2.4 GHz), 5G (3.5 GHz), WLAN (2.4/3.6/5 GHz) and WiMAX (2.3/3.5/5.8 GHz) and is shown from the measured results. From these results it is shown that the produced antenna produces six distinct bands with good the simulation outcomes.
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36

Et.al, R. Ramasamy. "Design and Analysis of Multiband Bloom Shaped Patch Antenna for IoT Applications." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 3 (April 10, 2021): 4578–85. http://dx.doi.org/10.17762/turcomat.v12i3.1848.

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A Microstrip Bloom shaped patch antenna is proposed for Internet of Things (IoT) application. This antenna operates at multiband frequencies between 1.6 GHz to 2.45 GHz. The Bloom shaped antenna provides multiband response that examined in HFSS Software. In this proposed antenna design, FR4 substrate material is used because it is easily available and low cost. The proposed antenna structure simulated and analyzed in different experimental results including return loss measurement, Voltage Standing Wave Ratio measurement, radiation pattern measurement and gain measurement. This proposed Multiband Microstrip Bloom shaped patch antenna provides better experimental results in all the parameters
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37

Sharma, Amit, Atal Rai, and Neeraj Kaushik. "Study of Microstrip Rectangular Patch Antenna and its various parameters." International Journal of Advance Research and Innovation 1, no. 2 (2013): 25–27. http://dx.doi.org/10.51976/ijari.121306.

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Today in the communication world microstrip antennas plays a vital role due to its millimeter dimensions. Today’s generation require many applications on a single device. The multiband small antenna can be easily fitted in mobile which can be used for various applications. Here we have studied the microstrip rectangular patch antenna and its various parameters. Here primarily the antenna parameters are mentioned and secondary the necessary ranges are define for antenna performance.
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38

Wang, Junjun, and Xudong He. "Analysis and Design of a Novel Compact Multiband Printed Monopole Antenna." International Journal of Antennas and Propagation 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/694819.

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A compact multiband printed monopole antenna is presented. The proposed antenna, composed of a modified broadband T-shaped monopole antenna integrating some band-notch structures in the metallic patch, is excited by means of a microstrip line. To calculate the bandwidth starting frequency (BSF) of the T-shaped broadband antenna, an improved formula is proposed and discussed. The multiband operation is achieved by etching three inverted U-shaped slots on the radiant patch. By changing the length of the notch slots, operation bands of the multiband antenna can be adjusted conveniently. The antenna is simulated in Ansoft HFSS and then fabricated and measured. The measurement results show that the proposed antenna operates at 2.25–2.7 GHz, 3.25–3.6 Hz, 4.95–6.2 GHz, and 7-8 GHz, covering the operation bands of Bluetooth, WiMAX, WLAN, and downlink of X-band satellite communication system and thus making it a proper candidate for the multiband devices.
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39

Choudhury, Balamati, Sangeetha Manickam, and R. M. Jha. "Particle Swarm Optimization for Multiband Metamaterial Fractal Antenna." Journal of Optimization 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/989135.

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The property of self-similarity, recursive irregularity, and space filling capability of fractal antennas makes it useful for various applications in wireless communication, including multiband miniaturized antenna designs. In this paper, an effort has been made to use the metamaterial structures in conjunction with the fractal patch antenna, which resonates at six different frequencies covering both C and X band. Two different types of square SRR are loaded on the fractal antenna for this purpose. Particle swarm optimization (PSO) is used for optimization of these metamaterial structures. The optimized metamaterial structures, after loading upon, show significant increase in performance parameters such as bandwidth, gain, and directivity.
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40

Al-Zabee, Ahmed Azeez Khudhair, Saba Qasim Jabbar, and Desheng Wang. "Fractal Antennas (Study and Review)." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 15, no. 13 (November 30, 2016): 7387–400. http://dx.doi.org/10.24297/ijct.v15i13.31.

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In recent years, great demands for an antenna with many falsities like miniaturization, multiband and wideband antenna with high gain and low profile antenna for modern wireless communication services and applications. Fractal antenna paves the way for these requirements. In this survey, we will attempt to study and review the existing fractal antennas designs and to classify them with different techniques used and additional insight into these unique structures with the most used simulation softwares for designing of fractal antenna applications.
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41

Paredes, F., G. Zamora, S. Zufanelli, F. J. Herraiz-Martínez, J. Bonache, and F. Martín. "Recent Advances in Multiband Printed Antennas Based on Metamaterial Loading." Advances in OptoElectronics 2012 (October 22, 2012): 1–12. http://dx.doi.org/10.1155/2012/968780.

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It is shown that printed antennas loaded with metamaterial resonators can be designed to exhibit multiband functionality. Two different antenna types and metamaterial loading are considered: (i) printed dipoles or monopoles loaded with open complementary split ring resonators (OCSRRs) and (ii) meander line or folded dipole antennas loaded with split ring resonators (SRRs) or spiral resonators (SRs). In the first case, multiband operation is achieved by series connecting one or more OCSRRs within the dipole/monopole. Such resonators force opens at their positions, and by locating them at a quarter wavelength (at the required operating frequencies) from the feeding point, it is possible to achieve multiple radiation bands. In the second case, dual-band functionality is achieved through the perturbation of the antenna characteristics caused by the presence of the metamaterial resonators. This latter strategy is specially suited to achieve conjugate matching between the antenna and the chip in radiofrequency identification (RFID) tags at two of the regulated UHF-RFID bands.
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42

R, Banuprakash, GSPN Amith, Gagana N, Ravi AG, and Pavanashree C. "Design of Multiband Antenna for Wimax and WLAN Applications Using DGS." International Journal of Engineering & Technology 7, no. 3.12 (July 20, 2018): 140. http://dx.doi.org/10.14419/ijet.v7i3.12.15904.

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In this paper, a multiband antenna with a micro strip feed line is presented. This antenna is designed on FR4 substrate with dielectric constant 4.4 having overall size of 20 × 20 × 1.6mm3. The proposed antenna comprises defected ground structure with T and L shape slots to achieve multiband frequencies. This multiband antenna covers three different frequencies as 3.3 GHz, 3.85 GHz and 5.25 GHz. All of these frequencies are applicable for WiMAX and WLAN applications respectively. Return loss (S11), Gain and Radiation patterns are simulated and observed on HFSS.
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43

Pandey, Shraddha, and Pankaj Vyas. "Review of Reconfigurable Microstrip Patch antenna for Wireless Application." International Journal on Recent and Innovation Trends in Computing and Communication 7, no. 6 (June 22, 2019): 25–28. http://dx.doi.org/10.17762/ijritcc.v7i6.5317.

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In recent time, world have seen a rapid growth in wireless communication. Development in antenna from single band to dual band and multi band had made the antenna system more compact. A frequency reconfigurable microstrip antenna using a PIN diode for multiband operation is using many application and hot research area. In this paper, reconfigurable microstrip patch antennas and their types like frequency, polarization, radiation pattern and gain are described.
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44

Anguera, Andújar, Jayasinghe, Chakravarthy, Chowdary, Pijoan, Ali, and Cattani. "Fractal Antennas: An Historical Perspective." Fractal and Fractional 4, no. 1 (January 19, 2020): 3. http://dx.doi.org/10.3390/fractalfract4010003.

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Fractal geometry has been proven to be useful in several disciplines. In the field of antenna engineering, fractal geometry is useful to design small and multiband antenna and arrays, and high-directive elements. A historic overview of the most significant fractal mathematic pioneers is presented, at the same time showing how the fractal patterns inspired engineers to design antennas.
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45

Nigam, Sumit, and Dr Ashutosh Sharma. "Designing of Multiband Antenna with Modified Bandwidth using Metamaterial." International Journal of Electrical and Electronics Research 5, no. 1 (March 31, 2017): 6–8. http://dx.doi.org/10.37391/ijeer.050102.

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In this research article designing of a multiband antenna and simulation result of the same is presented. Initially a rectangular microstrip antenna was designed and then bandwidth and other parameters along with its operating bands were modified using the modification technique which is widely known as metamaterial. Designed antenna was radiating at 2.32GHz frequency with -10dB return loss and bandwidth was very nominal i.e. 17MHz only. Later after keen literature review it was found that various techniques are available to modify such low-quality antennas. Metamaterial technique was found more superior along with the other available techniques. After implementing metamaterial parameters drastically modified, single band antenna converted into 4 bands with bandwidth of each band was greater than previous one.
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46

Idris, Izni Husna, Mohamad Rijal Hamid, Kamilia Kamardin, Mohamad Kamal A. Rahim, and Huda A. Majid. "A multiband and wideband frequency reconfigurable slotted bowtie antenna." Indonesian Journal of Electrical Engineering and Computer Science 19, no. 3 (September 1, 2020): 1399. http://dx.doi.org/10.11591/ijeecs.v19.i3.pp1399-1406.

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A multiband and wideband frequency reconfigurable antenna is presented. A wideband from 3.5 GHz to 9.0 GHz is achieved by introducing one stripline in the middle of a slotted bowtie antenna, whereas multiband is obtained by integrating an additional two slotted arms at the end of bowtie-shaped. As a result, the antenna operated at multiband mode (1.7 GHz and 2.6 GHz) and wideband mode (3.5 GHz to 9.0 GHz) simultaneously. The reconfigurability of the antenna is attained through switches. Five states are achieved with three pairs of switches configurations. All results are presented and discussed, including S11, current distribution, radiation pattern, and gain. The antenna is suitable to be used in multimode communication systems.
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47

Abbasi, Nisar Ahmad, Richard Langley, and Shahid Bashir. "Multiband shorted monopole antenna." Journal of Electromagnetic Waves and Applications 28, no. 5 (February 5, 2014): 618–33. http://dx.doi.org/10.1080/09205071.2014.882271.

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48

Tang and Wahid. "Hexagonal fractal multiband antenna." IEEE Antennas and Wireless Propagation Letters 3 (2004): 111–12. http://dx.doi.org/10.1109/lawp.2004.829989.

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49

Rao, Qinjiang, and Wen Geyi. "Folded multiband strip antenna." Microwave and Optical Technology Letters 52, no. 9 (June 17, 2010): 2087–90. http://dx.doi.org/10.1002/mop.25390.

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50

Basavarajappa, Vedaprabhu, and Vincent Fusco. "Multiband evanescent waveguide antenna." Microwave and Optical Technology Letters 57, no. 3 (January 23, 2015): 540–42. http://dx.doi.org/10.1002/mop.28896.

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