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Journal articles on the topic 'Microstrip slot antenna'

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Published: 4 June 2021
Last updated: 9 February 2022

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1

Meghana, Mannem. "Design of Wearable Microstrip Patch Antenna Using T-Shaped Slot Antenna Compared with U-Shaped Slot Antenna for Health Monitoring Systems." Revista Gestão Inovação e Tecnologias 11, no. 2 (June 5, 2021): 1046–65. http://dx.doi.org/10.47059/revistageintec.v11i2.1736.

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Aim: To Enhance radiation characteristics such as bandwidth, gain and Voltage Standing Wave Ratio (VSWR) by designing innovative wearable T-shaped and U-shaped slot microstrip patch antennas using the FEKO tool for health monitoring systems by using FR4 substrate for an operating frequency ranging from 2.2 to 2.6 GHz. Materials and methods: The microstrip patch antenna ground plane is made with FR4 material by using FEKO software varying frequency between 2.2-2.6 GHz. The T-Shaped and U- shaped slot microstrip patch antennas was chosen as a group having 20 samples each. The bandwidth, gain and VSWR was obtained for T-shape and U-shape slot antennas. Results: T-shaped slot antennas (P=0.001) have significantly higher bandwidth, gain and lower VSWR than the U-shaped slot antenna (P=0.031).The obtained significance value is <0.005 and mean values also increased. Conclusion: T-shaped microstrip patch antenna is designed and simulated using FEKO tool. The T-shape slot antenna has higher bandwidth, gain (Mean of T-shape 2.7238 and U-shape 1.4626) and VSWR (Mean of T-shape 8.3951 and U-shape 6.7675) when compared to U-shaped slot antenna. So, this antenna is very suitable for health monitoring systems.
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2

Gupta, Hemant Kumar, P. K. Singhal, Pavan Kumar Sharma, and Veerendra Singh Jadon. "Slotted Circular Microstrip Patch Antenna Designs for multiband Application in Wireless Communication." International Journal of Engineering & Technology 1, no. 3 (June 14, 2012): 158. http://dx.doi.org/10.14419/ijet.v1i3.89.

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The paper present the Circular Microstrip Patch Antenna designs with slit-slot for multiband purpose in wireless communication. We have designed a circular microstrip patch antenna (CMPA) for 1.3GHz used in wireless communication. We have designed CMPA with 2slit slot, 3slit-slot, and 6slit-slot and observed results for different designs, and finally it is shown that as slit-slot increases to six slit-slot Return-loss and Bandwidth of CMPA are reduced.The multiband antenna use for wireless communication in different applications. Bandwidth improvement is about 63.3%, 72.10% and 37.5% respectively in two, three and six slit-slotted patch when compared to their basic design bandwidth band. Antenna is changed to multiband by slit-slot Circular Microstrip Patch Antenna (CMPA).
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3

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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4

Saeidi, Tale, Idris Ismail, Wong Peng Wen, Adam R. H. Alhawari, and Ahmad Mohammadi. "Ultra-Wideband Antennas for Wireless Communication Applications." International Journal of Antennas and Propagation 2019 (April 22, 2019): 1–25. http://dx.doi.org/10.1155/2019/7918765.

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A review paper concerning wide-band and ultra-wideband (UWB) antennas used for wireless communication purposes in terms of the materials as well as a numerical analysis is presented. These antennas which are taken into account are listed as wide-band microstrip antenna, wide-band monopole antenna over a plate, wide-slot UWB antenna, stacked patch UWB antenna, taper slot (TSA) UWB antenna, metamaterial (MTM) structure UWB antennas, elliptical printed monopole UWB antenna, and flexible wearable UWB antenna. The antennas’ performance is compared based on their size and how they can be applicable for portable communication device applications. This review paper furnishes a proper direction to select varieties of figures in terms of impedance bandwidth, gain, directivity, dimensions, time domain characteristics, and materials affecting these antenna’s characteristics.
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5

Hakeem, M. J., and M. M. Nahas. "Improving the Performance of a Microstrip Antenna by Adding a Slot into Different Patch Designs." Engineering, Technology & Applied Science Research 11, no. 4 (August 21, 2021): 7469–76. http://dx.doi.org/10.48084/etasr.4280.

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Microstrip patch antennas are attractive for communication applications due to their small size, low cost, and easy fabrication. Regardless of the diverse usage of these antennas, their bandwidth and efficiency are still limited and need to be improved. Therefore, this paper aims to enhance the bandwidth and efficiency of a microstrip antenna by inserting a slot into various patch designs. Flame Retardant (FR4) material is used in the dielectric substrate and the antenna is fed by a microstrip line. Virtually, the antenna performance is attempted to be optimized through empirical investigations of feedline lengths, slot sizes and positions, and ground plane dimensions and locations. To achieve the results, the High Frequency Structure Simulator (HFSS) is used, and the paper concludes by showing that the antenna performance is enhanced by the slot, and the return loss is significantly reduced when the ground plane is moved to the front surface of the antenna.
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6

Reddy, V. V. "Broadband Koch Fractal Boundary Printed Slot Antenna for ISM Band Applications." Advanced Electromagnetics 7, no. 5 (September 5, 2018): 31–36. http://dx.doi.org/10.7716/aem.v7i5.780.

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A new broadband radiating slot antenna with fractal shape is modeled, fabricated and experimentally studied. The presented slot antenna is examined for first three iterations. Optimization of iteration factor (IF) and iteration angle (IA) have been done for each iteration order (IO) to enhance impedance bandwidth significantly. All the antennas are fed with a simple microstrip line. Bandwidth achieved with Antenna 1 (IO=1, IF=0.35 and IA=600) is 1550 MHz which is five times more than that of the square slot antenna. The performance of the proposed fractal slots is also compared with the rotated slot antenna. The experimental data validates the reported analysis with a close agreement.
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7

Kirana, Nurista Wahyu. "An Analysis of Slot Dimension Changing in Dual band Rectangular Patch Microstrip Antenna with Proximity Coupled Feed." JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING 4, no. 1 (July 20, 2020): 246–53. http://dx.doi.org/10.31289/jite.v4i1.3961.

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In this paper, the characteristics of dual band rectangular patch microstrip antenna using proximity couple feed are studied. It can be used for a wireless device that works on multiband frequency. The addition of slot and proximity feed used in order to obtain larger bandwidth and multiple frequency. Microstrip antenna is designed and simulated using software also used to analyze by changing the variable of microstrip slot’s dimension. The parameters are tested in this study include Voltage standing wave ratio (VSWR), return loss, gain, bandwidth and radiation patterns. From the simulation results, the best value of return loss antenna is -23,29 dB at 2,4 GHz with a slot width of 1 mm and 0,085 GHz bandwidth. At 3,7 GHz, the best value of return loss antenna is -23dB with a slot width of 2 mm and 0,12 GHz bandwidth. Afterwards, the best VSWR obtained on dual band microstrip antennas with proximity coupled feed is 1,14 and 5.53 dBi gain.Keywords: slot, bandwidth, proximity, return loss, gain.
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8

Singh, Pushpinder, and Gaurav Monga. "Design and Comparative Analysis of Rectangular Slot Microstrip Patch Antennas for X-band Applications." International Journal of Advanced Research in Computer Science and Software Engineering 8, no. 5 (June 2, 2018): 48. http://dx.doi.org/10.23956/ijarcsse.v8i5.664.

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Microstrip patch antenna is a compact antenna which suffers the limitations of poor gain and reduction in radiation pattern. To reduce the resonance frequency of microstrip antenna increases the length of surface current with help of cutting slots in the patch. In this paper, a comparison of four Microstrip antennas with unequal length of rectangular slots is proposed. The microstrip antennas having rectangular shaped ground plane and FR4-epoxy substrate with relative permittivity 4.4, relative permeability 1 and dielectric loss tangent 0.02 with an overall size of 100×100×5 mm3. The performance of antennas is compared with slots in the patch and the effects of rectangular slots using operating frequency of 8 to 12 GHz are presented. The design simulate and analyze on FEM based HFSSv11 and this helps to compute VSWR, return loss, gain, radiation efficiency and 3D polar plot of the proposed microstrip antenna. The proposed configuration gives broadside gain of more than 8 dBi and VSWR (>2) over entire range in simulated results.
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9

Chen, P., X. D. Yang, C. Y. Chen, and Z. H. Ma. "Broadband Multilayered Array Antenna with EBG Reflector." International Journal of Antennas and Propagation 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/250862.

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Most broadband microstrip antennae are implemented in the form of slot structure or laminate structure. The impedance bandwidth is broadened, but meanwhile, the sidelobe of the directivity pattern and backlobe level are enlarged. A broadband stacked slot coupling microstrip antenna array with EBG structure reflector is proposed. Test results indicate that the proposed reflector structure can effectively improve the directivity pattern of stacked antenna and aperture coupled antenna, promote the front-to-back ratio, and reduce the thickness of the antenna. Therefore, it is more suitable to be applied as an airborne antenna.
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10

Keshari, Jaishanker Prasad, Binod Kumar Kanaujia, Mukesh Kumar Khandelwal, Pritam Singh Bakariya, and Ram Mohan Mehra. "Omnidirectional multi-band stacked microstrip patch antenna with wide impedance bandwidth and suppressed cross-polarization." International Journal of Microwave and Wireless Technologies 9, no. 3 (February 24, 2016): 629–38. http://dx.doi.org/10.1017/s1759078716000209.

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In this paper, triple-band stacked microstrip patch antennas (MPAs) are presented with wide impedance bandwidth and suppressed cross-polarization level. Triangular and circular shaped slots are embedded in the patch of antenna. Slot-loaded microstrip patches are fed with meandered microstrip line supported by a semi-ground plane structure. Triangular shaped slot-loaded MPA shows triple resonance at frequencies 2.2, 4.45, and 5.3 GHz having bandwidth of 45.9, 19.23, and 15.67%, respectively. Circular shaped slot-loaded MPA also shows triple resonance at frequencies 2.2, 4.42, and 5.38 GHz having bandwidth of 50.24, 33.21, and 13.43%, respectively. Using circular slot in place of triangular; bandwidth of the first and the second band is improved by 4.34 and 13.98%, respectively. Both the proposed antennas show an omnidirectional radiation pattern at all three resonance frequencies in the xz-plane with almost 0 dBi gain. Both the proposed antennas are fabricated on a FR-4 epoxy substrate and show a minimum level of cross-polarization radiations.
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11

Uyguroğlu, Rasime, Allaeldien Mohamed Hnesh, Muhammad Sohail, and Abdullah Y. Oztoprak. "Spurious radiation suppression in microstrip monopulse antenna." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 39, no. 4 (May 11, 2020): 791–99. http://dx.doi.org/10.1108/compel-10-2019-0384.

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Purpose This paper aims to introduce a new novel microstrip monopulse comparator system to reduce the spurious radiation from the comparator and the feed network for achieving better radiation performance. Design/methodology/approach Two substrate layers have been used for the microstrip monopulse comparator system. The feed network and the comparator circuits are on the first substrate layer and the microstrip array antenna is on the second layer. The elements of the array antenna are novel square four-sided narrow rectangular slot antennas built on a conducting plane. A commercially available computational software, CST microwave studio, has been used for the analysis of the system. Findings Two substrate layers have been used for the microstrip monopulse comparator system. The feed network and the comparator circuits are on the first substrate layer and the microstrip array antenna is on the second layer. The elements of the array antenna are novel square four-sided narrow rectangular slot antennas built on a conducting plane. A commercially available computational software, CST microwave studio, has been used for the analysis of the system. Practical implications The system is proposed for tracking moving targets. Originality/value Novel slot radiators are introduced as radiating elements in this paper. The antenna arrangement shields the comparator and the feed network circuits, reducing the spurious radiation significantly.
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12

B., Partibane, Gulam Nabi Alsath M., and Kalidoss Rajakani. "Design of a bandwidth enhanced hybrid slot loop antenna for GSM/UWB standards." Circuit World 43, no. 3 (August 7, 2017): 105–10. http://dx.doi.org/10.1108/cw-03-2017-0009.

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Purpose This paper aims to presents the bandwidth enhancement of a hybrid slot–loop antenna using a modified feed structure. Design/methodology/approach The conventional monopole feed of the hybrid slot–loop radiator is loaded with a flat microstrip patch to excite higher-order modes. The proposed antenna combines the resonant modes of the slot antenna, the loop antenna and the patch loading. Findings The antenna exhibits a dual-band response suitable for GSM 1800/1900 and ultrawideband (UWB) standards. The impedance bandwidth extends from 1.65 to 1.95 GHz (11.42 per cent) and 3 to 11.1 GHz (114.9 per cent). The proposed antenna has the smallest footprint with a peak gain of 5.07 dBi at 1.8 GHz and 4.97 dBi at 6 GHz. The prototype antenna is fabricated and the simulation results are validated using experimental measurements. The performance of the bandwidth-enhanced hybrid slot–loop antenna is compared with that of other slot antennas. Originality/value Thus, a hybrid slot–loop antenna with an enhanced bandwidth has been reported in this study. The conventional monopole feed of the antenna is replaced with a monopole ending with a microstrip patch load. The antenna covers the operating bands of GSM 1800/1900 and UWB. The proposed antenna has a smaller footprint compared with other wide-slot antennas reported in the literature.
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13

SANDI, EFRI, WISNU DJATMIKO, and RIZKITA KURNIA PUTRI. "Desain U-slot Ganda untuk Meningkatkan Bandwidth Antena MIMO 5G Millimeter-wave." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 8, no. 1 (January 31, 2020): 150. http://dx.doi.org/10.26760/elkomika.v8i1.150.

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ABSTRAK Pada penelitian ini dikembangkan rekayasa antena mikrostrip (MSA) dengan penambahan U-slot ganda untuk meningkatkan performansi bandwidth antena mikrostrip. Penelitian sebelumnya berfokus pada penambahan U-slot tunggal dan didesain untuk frekuensi di bawah 15 GHz. Kebutuhan utama antena 5G adalah memiliki bandwidth yang lebar dan kemampuan Multiple Input Multiple Output (MIMO). Untuk itu perlu dikembangkan desain antena MIMO 5G dengan bandwidth yang lebih lebar pada frekuensi millimeter-wave 28 GHz sebagai kandidat utama alokasi frekuensi untuk komunikasi seluler 5G. Pada penelitian ini diajukan teknik desain antena MIMO dengan penambahan rekayasa U-slot ganda untuk meningkatkan performansi bandwidth. Hasil kalkulasi dan simulasi menunjukkan bahwa dengan penambahan U-slot ganda, dihasilkan peningkatan performansi bandwith sebesar 68% dibandingkan desain antena tanpa U-slot. Jika dibandingkan dengan hasil penelitian U-slot sebelumnya, penambahan U-slot ganda menghasilkan peningkatan bandwidth sebesar 76%. Kata kunci: U-Slot ganda, antena 5G millimeter-wave, MIMO, bandwidth ABSTRACT In this study, a microstrip antenna (MSA) was developed with the addition of a double U-slot to improve bandwidth performance. Previous studies have focused on adding single U-slots and designed for frequencies below 15 GHz. The main requirement for 5G antennas is high bandwidth performance and multiple inputmultiple output capabilities (MIMO). Therefore, it is necessary to develop a 5G MIMO antenna with broader bandwidth at the millimeter-wave frequency 28 GHz as the primary candidate for frequency allocation for 5G cellular communication. In this study, MIMO antenna design techniques were proposed with the addition of a double U-slot method to improve bandwidth performance. The calculation and simulation results show that with the addition of a double U-slot, an increase in bandwidth performance of 68% compared to antenna designs without U-slots and 76% when compared to using a single U-slot in previous studies. Keywords: Double U-Slot, millimeter-wave 5G antenna, MIMO, bandwidth
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14

Cheng, Yong, and Hui Liu. "A Novel Concentric Annular-Ring Slot Dual-Band Circularly Polarized Microstrip Antenna." International Journal of Antennas and Propagation 2018 (December 13, 2018): 1–8. http://dx.doi.org/10.1155/2018/7560567.

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A simple structure concentric annular-ring slot dual-band circularly polarized (CP) microstrip antenna operating at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed in this paper. The antenna achieves dual-band operation by digging two concentric annular-ring slots on the ground. And on the angular positions with 45 degrees inclined of each annular slot, two bent structures are loaded to generate circularly polarized radiation. The radiation of this antenna is bidirectional, and the directions of rotation are opposite. The measured results of the annular-ring slot microstrip antenna show good performance of dual-band circularly polarized characteristics.
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15

Yeo, Junho, and Jong-Ig Lee. "Slot-Loaded Microstrip Patch Sensor Antenna for High-Sensitivity Permittivity Characterization." Electronics 8, no. 5 (May 7, 2019): 502. http://dx.doi.org/10.3390/electronics8050502.

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A slot-loaded microstrip patch sensor antenna is proposed to enhance sensitivity in measuring the permittivity of planar materials. A thin rectangular slot was etched along the radiating edge of a rectangular patch antenna fed by a microstrip transmission line. Two resonant frequencies were created at a lower frequency compared to the single resonant frequency of a conventional ordinary patch antenna. The sensitivity of the proposed slot-loaded patch antenna was measured by the shift in the resonant frequency of the input reflection coefficient when the planar dielectric superstrate was placed above the patch, and was compared with that of a conventional patch antenna without the slot. The two antennas were designed and fabricated on a 0.76 mm-thick RF-35 substrate for the first resonant frequency to resonate at 2.5 GHz under unloaded conditions. Five different standard dielectric samples with dielectric constants ranging from 2.17 to 10.2 were tested for sensitivity comparison. The experiment results showed that the measured sensitivity of the proposed patch antenna were 3.54 to 4.53 times higher, compared to a conventional patch antenna, for the five samples.
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16

Garza-Resendiz, Eva Karla, Mario Reyes-Ayala, Edgar Alejandro Andrade-Gonzalez, and Hilario Terres-Peña. "U-Slot Cut Rectangular Microstrip Antenna with a Large Ground Plane and a Thin Substrate." WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (February 25, 2021): 12–17. http://dx.doi.org/10.37394/23204.2021.20.3.

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It is very well known that the Rectangular Microstrip Antennas (RMA) are narrowband, but it is possible to enhance its bandwidth by cutting slots inside the patch. Some slots variations have been used to improve this important feature in modern mobile radiocommunication systems. U-slot antennas are employed in broadband applications, but it is very important to consider the usage of a thick substrate with a low dielectric constant. In this paper, an U-slot RMA built in a The Printed Circuit Board (PCB) with a thin FR4 substrate for 800 MHz to 900 MHz is presented and analyzed. The PCB that is necessary to fabricate the antenna is very low cost and it is conformable in many mobile terminals. The antenna was simulated in HFSS and measured using return losses and its antenna patterns.
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17

Bai, Bowen, Zheng Zhang, Xiaoping Li, Chao Sun, and Yanming Liu. "Integration of Microstrip Slot Array Antenna with Dye-Sensitized Solar Cells." Sensors 20, no. 21 (November 2, 2020): 6257. http://dx.doi.org/10.3390/s20216257.

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This paper describes the integration of microstrip slot array antennas with dye-sensitized solar cells that can power array antennas at 5.8 GHz, ensuring normal communications. To appraise the antennas, a 2 × 2 circularly polarized microstrip slot array antenna integrated with dye-sensitized solar cells using a stacked design method was analyzed, fabricated and measured. The size of the entire array is 140 mm × 140 mm, where the size of each solar cell is 35 mm × 35 mm. The results show that the effect of the antenna has a slight influence on the output performance of the solar cells, and the interference of the output current of the solar cells to the antenna feeding system is negligible. The gain of the array antenna increases by 0.12 dB and the axial ratio is reduced to 1.50 dB after the integration of dye-sensitized solar cells. The integration saves a lot of space, and has the ability of self-sustaining power generation, thus providing reliable and long-term communication for various communication systems.
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18

Park, Yong-Wook. "A study of U-slot Microstrip Antenna." Journal of the Korea Academia-Industrial cooperation Society 13, no. 8 (August 31, 2012): 3623–27. http://dx.doi.org/10.5762/kais.2012.13.8.3623.

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19

Roy, Reshma, Apurva Singh, Om Prakash Kumar, Tanweer Ali, and Manohara Pai M. M. "A quad band planar slotted microstrip patch antenna for wireless applications." Bulletin of Electrical Engineering and Informatics 9, no. 4 (August 1, 2020): 1477–85. http://dx.doi.org/10.11591/eei.v9i4.2045.

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This research paper presents two different types of multiband patch antenna. The first design is a dual-band antenna and the second design is a quad-band antenna. Both the antennas have a compact size of , and is designed on FR4 substrate with loss tangent (=0.02, height (h)=1.6 mm, with dielectric constant of 4.4. The dual-band antenna operates at frequencies 3.9 and 5.71 GHz. These dual band operations are accomplished by utilizing L-shaped slot in the ground part and T-shaped slot in the radiating part of the patch antenna. The gain corresponding to the two frequency bands are 1.27 and 1.35 dB, respectively. The quad band antenna operates at frequencies 3.6, 4.9, 7.4 and 8 GHz. The gain corresponding to these frequencies are 0.18, 1.69, 2.25 and 3.99 dB. For achieving quad band operation from the dual band antenna the back plane L-shaped slot is modified by cutting a rectangular strip in the middle, hence dividing it into two different slots. The front plane is also modified by introducing two rectangular strips to the T-shaped patch. The proposed antenna shows multiband and has the advantage of simple structure compact size and good impedance matching. All the simulations of the proposed design are carried out in HFSS v.13.0.
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Mitha, Tanzeela, and Maria Pour. "Wideband Microstrip Patch Antennas with Transverse Electric Modes." Applied Computational Electromagnetics Society 35, no. 8 (October 7, 2020): 971–74. http://dx.doi.org/10.47037/2020.aces.j.350817.

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A wideband microstrip patch antenna, exciting the fundamental transverse electric (TE) mode, is investigated. The excitation of the TE mode is facilitated through replacing both of the patch and ground plane of a conventional microstrip antenna with artificial magnetic conductors (AMC), consisting of unipolar compact photonic bandgap (UC-PBG) unit cells. The AMC patch and the ground plane of this antenna behave as magnetic conductors within the bandgap region of the unit cells. Similar to conventional patch antennas, it is shown that by cutting a U-shaped slot in the AMC patch, wideband characteristics are realized. The antenna shows a 40% impedance bandwidth and operates at the TE10 mode. Moreover, the width of the patch is 1.75 times smaller than its length, reducing the overall size of the antenna by about 60%, compared with the conventional U-slot PEC antenna supporting the transverse magnetic (TM) mode.
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21

Bhat, Sudarshan, and Priyadarshini K Desai. "A Survey: Slot Antenna and Antenna Array." Journal of University of Shanghai for Science and Technology 23, no. 06 (June 29, 2021): 56–61. http://dx.doi.org/10.51201/jusst/21/06477.

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Slots are generally introduced in the antenna or antenna to improve the impedance matching, improve the bandwidth, and gain. Sometimes slots are introduced in the ground planes, or between antenna elements to reduce the mutual coupling between elements. The antenna being an important element in wireless communication technology, the design of the same with different requirements is important. This paper gives the survey of the slot antenna and antenna array constructed through waveguide and microstrip lines, to meet different antenna parameters as required in various wireless communication technology.
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22

Altaf, Amir, Youngoo Yang, Kang-Yoon Lee, and Keum Cheol Hwang. "Wideband Circularly Polarized Spidron Fractal Slot Antenna with an Embedded Patch." International Journal of Antennas and Propagation 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/3595620.

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In this communication, a wideband circularly polarized (CP) Spidron fractal microstrip antenna is proposed based on the concept of embedded structures. The proposed antenna is excited by a tapered microstrip feedline. A wide 3 dB axial ratio (AR) bandwidth of 28.81% (3.09–4.13 GHz) is obtained by merging the CP bands of the Spidron fractal slot and patch antennas. In addition, a measured −10 dB reflection bandwidth of 47.25% (2.57–4.16 GHz) is reported. The measured results are in reasonable concurrence with the simulated results. The measured gain varies between 2.12 dBic and 3.56 dBic within the AR bandwidth.
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23

Rahman, Ahmad Aulia'ur. "Design and Realization of Circular Microstrip Antenna as Wifi Receiver Antenna Using Double Patch Array Method with Slot." JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING 3, no. 1 (July 25, 2019): 21. http://dx.doi.org/10.31289/jite.v3i1.2467.

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<p><span>Wifi technology is a means to obtain information quickly, to strengthen the role of the signal, an antenna is needed because the antenna serves as a means for transmitting and receiving electromagnetic waves which are contained signal information. Mikrostrip antenna has a characteristic that is small, light, thin, easily fabricated, and can be used at a great distanceIn the use of wifi antenna require a relatively small shape and a cheaper prize. One of the antena on that specification is a microstrip antenna. By using 2 circular array method, the microstrip antenna can improve the wifi signal and wider on bandwidth. In this final project will be designed and created microstrip antenna with the 2 patches ccircular array methodwith slot that will be used as a wifi receiver. The results of the antenna microstrip rectangular 2 patches measurement indicating that it can work optimally on 2.406 GHz frequency, on a value of return loss – 22.90 dB, a value of VSWR 1.160, a value of bandwidth 0. 1035 GHz, and a value of gain 14.95 dBi.</span></p>
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24

Li, Qian, Chong Ding, Ruichao Yang, Mingtao Tan, Gangxiong Wu, Xia Lei, Xuebing Jiang, et al. "Mutual Coupling Reduction between Patch Antennas Using Meander Line." International Journal of Antennas and Propagation 2018 (July 4, 2018): 1–7. http://dx.doi.org/10.1155/2018/2586382.

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Meander lines (MLs) in two configurations are presented to reduce the mutual coupling (MC) between two microstrip patch antenna elements. Inserting a slot in the ground plane between the antenna elements is a simple method to reduce the MC, while adding the MLs in the slot of the ground can further reduce the MC. In the first configuration, one ML is inserted in the slot of the ground and a maximum MC reduction of 39 dB throughout the −10 dB bandwidth is achieved. What’s more, the radiation patterns are not changed compared with the dual-element microstrip antenna array with a slotted ground. For the second configuration, two MLs are added in the slot of the ground. It is found that a maximum isolation of 53 dB can be obtained. However, the radiation patterns are slightly changed compared with the dual-element microstrip antenna array with a slot in the ground. Meanwhile, the measured peak gain and efficiency of the dual-element microstrip antenna array in the two configurations are given. Along with this paper, several prototypes have been fabricated and measured. The simulated results are in good accordance with the measurements, which are presented to verify that MC reduction can be achieved between microstrip antenna elements by adding the MLs in the slotted ground.
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25

Yadav, Ajit Chandramohan, and Shafiyoddin Badroddin Sayyad. "CPW-Fed Circularly Polarized Slot Antenna." International Journal of Advanced Research in Computer Science and Software Engineering 7, no. 10 (October 30, 2017): 70. http://dx.doi.org/10.23956/ijarcsse.v7i10.167.

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This article demonstrates the coplanar waveguide (CPW) feed L- slot microstrip antenna for multi frequency band operation is presented. The proposed antenna is excited by a single CPW feed connected to a Microstrip antenna. In this radiating patch and feed are etched on the same dielectric material. A SMA connector is used to connect the feed strip which couples the energy to a radiating patch by capacitive feed. The length and width are designed to obtained dual band frequency range. A truncation is used for multiband operations and for proper impedance matching. L- slot is used to increase the depth of S11 parameter.
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26

Chandel, Richa, Anil Kumar Gautam, and Binod Kumar Kanaujia. "A compact rhombus-shaped slot antenna fed by microstrip-line for UWB applications." International Journal of Microwave and Wireless Technologies 9, no. 2 (November 13, 2015): 403–9. http://dx.doi.org/10.1017/s1759078715001646.

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In this paper, a novel design and experimental study of microstrip-line-fed rhombus-shaped slot antenna is presented. The proposed antenna shows an ultra-wide band (UWB) operation with good impedance matching by choosing appropriate rhombus-shaped slot and feeding structure. The proposed antenna has a simple structure and compact size as compared with many reported antennas. The measured results validate the design and the impedance bandwidth can operate from 2.78 to 12.92 GHz (10.14 GHz), which evidently covers entire UWB (3.1–10.6 GHz). Furthermore, the key parameters of the antenna are also discussed to study their persuade on the antenna performance.
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ANGGELINA, IRSANDI, TRASMA YUNITA, and LEVY OLIVIA NUR. "Perancangan dan Realisasi Antena Mikrostrip Fraktal Kӧch untuk Aplikasi TV Digital di Dalam Ruangan." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 8, no. 1 (January 31, 2020): 16. http://dx.doi.org/10.26760/elkomika.v8i1.16.

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ABSTRAK Siaran TV digital umumnya menggunakan antena tipe Yagi dan Kubikal yang berukuran besar sehingga tidak fleksibel digunakan di dalam ruangan. Penelitian ini merancang dan merealisasikan antena mikrostrip miniaturisasi fraktal Köch agar dimensi antena lebih kecil dan bandwidth lebih besar sehingga cocok digunakan di dalam ruangan. Miniaturisasi antena berupa fraktal Köch iterasi-1 pada patch dan teknik slot iterasi-2 pada ground plane menggunakan pencatuan mikrostrip proximity coupled feed pada alokasi frekuensi TV digital Indonesia 478 – 694 MHz dengan bandwidth 216 MHz. Antena dirancang pada software perancang antena, direalisasikan, diukur, dan diaplikasikan pada TV digital. Hasil simulasi antena menunjukkan bandwidth yang lebih besar dari spesifikasi yaitu 245,99 MHz pada rentang frekuensi 477,81 – 723,8 MHz. Return loss dan gain untuk direalisasikan sebesar -16,67 dB dan 3,085 dB pada frekuensi tengah 586 MHz. Pola radiasi berbentuk bidirectional dan polarisasi berbentuk linier. Panjang dan lebar antena hasil realisasi 17,33 cm X 17,33 cm. Kata Kunci: TV digital, antena, mikrostrip, Fraktal, Köch ABSTRAC Digital TV broadcasting generally uses large Yagi and Cubical type antennas, so it is not flexible to be used indoor. This study designs and applies miniaturization of Köch fractal microstrip antennas to obtain smaller dimensions and larger bandwidth. The miniaturization of antenna are Köch fractal iteration-1 on patch and iteration-2 slot technique on ground plane using proximity coupled feed at frequency allocation 478 – 694 MHz and the bandwidth is 216 MHz. The antenna was designed in software and developed, measured, and applied to digital TV. Antenna simulation results show a greater bandwidth than specification, 245.99 MHz, at the frequency range of 477.81 – 723.8 MHz. Return loss and gain simulation results that meet the specifications to be applied to digital TV antennas are -16.67 and 3.085 dB at 586 MHz center frequency. The radiation pattern is bidirectional and polarization is linear. The length and width dimensions of the antenna is 17.33 cm × 17.33 cm. Keywords: TV digital, antenna, microstrip, Fractal, Köch
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28

Oh, Ho-Kweon, Suk-Im Choi, and Hyung-Gin You. "Study on O-slot UWB Microstrip patch antenna." Journal of the Korea Institute of Information and Communication Engineering 18, no. 9 (September 30, 2014): 2066–72. http://dx.doi.org/10.6109/jkiice.2014.18.9.2066.

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29

Mishra, Sharad, and Omesh Singh Hada. "Broadband Microstrip Patch Antenna using Slot." International Journal of Computer Applications 108, no. 6 (December 18, 2014): 37–40. http://dx.doi.org/10.5120/18918-0251.

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30

Deshmukh, Amit A., Divya Singh, Priyal Zaveri, Mohil Gala, and K. P. Ray. "Broadband Slot Cut Rectangular Microstrip Antenna." Procedia Computer Science 93 (2016): 53–59. http://dx.doi.org/10.1016/j.procs.2016.07.181.

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31

Lu, Jui-Han, Chia-Luan Tang, and Kin-Lu Wong. "Slot-coupled small triangular microstrip antenna." Microwave and Optical Technology Letters 16, no. 6 (December 20, 1997): 371–74. http://dx.doi.org/10.1002/(sici)1098-2760(19971220)16:6<371::aid-mop13>3.0.co;2-3.

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32

Majid, Huda A., Mohamad Kamal Abdul Rahim, Mohamad Rijal Hamid, Noor Asniza Murad, and Mohd Faizal Ismail. "Frequency-Reconfigurable Microstrip Patch-Slot Antenna." IEEE Antennas and Wireless Propagation Letters 12 (2013): 218–20. http://dx.doi.org/10.1109/lawp.2013.2245293.

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33

Katayama, M., M. Yamamoto, T. Nojima, and K. Itoh. "Microstrip-fed crossed-slot array antenna." Electronics Letters 40, no. 4 (2004): 223. http://dx.doi.org/10.1049/el:20040196.

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34

Dubost, G., and A. Rabbaa. "Analysis of a slot microstrip antenna." IEEE Transactions on Antennas and Propagation 34, no. 2 (February 1986): 155–63. http://dx.doi.org/10.1109/tap.1986.1143791.

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35

Othman, Adib, Nur Ishmah Sabirah Shaari, Abdullah M. Zobilah, Noor Azwan Shairi, and Zahriladha Zakaria. "Design of compact ultra wideband antenna for microwave medical imaging application." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 3 (September 1, 2019): 1197. http://dx.doi.org/10.11591/ijeecs.v15.i3.pp1197-1202.

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<p>A compact ultra wideband (UWB) antenna for operation at 6 GHz intended for microwave medical imaging (MMI) application is proposed. The microstrip patch antenna (MPA) was design in hexagon shape which is contain H-slot at the centre top of the patch and a slot at the ground. Those slots method is utilised to enhance the operating bandwidth as well as minimising the antenna’s impedance mismatch caused by its proximity to material. Results shows that, the implementation of slot on the patch has profoundly enhance the bandwidth (BW) of the antenna to 503.54 MHz. Measurement of fabricated antenna produce significant result in term of producing wide bandwidth of 520 MHz, with slightly shifting on operating frequency. Therefore, it has been proved that the required performance of UWB antenna has been achieved successfully.</p><p><em> </em></p>
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36

Liu, Yujie, Philip Beal, Henry Giddens, and Yang Hao. "U-slot patch antenna with low RCS based on a metaferrite substrate." EPJ Applied Metamaterials 6 (2019): 20. http://dx.doi.org/10.1051/epjam/2019020.

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Metamaterial ferrites or metaferrites are artificial magnetic materials which mimic the properties of ferrites at a certain frequency operation. Antenna engineers are therefore able to design and create artificial substrates which replicate the electrical properties of ferrites without actually using any in the construction. This is advantageous as ferrites can offer performance improvements to microstrip antennas, such as size reduction and wideband impedance matching. In this paper, a metaferrite substrate designed by the use of a genetic algorithm is presented. The metaferrite was optimized in order to obtain the magnetic responses at 9GHz, for its use as the substrate of a microstrip antenna. As an example, a U-slot patch antenna based on the metaferrite is demonstrated, which can achieve stable radiation and 14 dB radar cross section (RCS) reduction performance in the measurement.
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37

Rahayu, Yusnita, and Irfan Alwandi Pohan. "DESIGN OF RECTANGULAR WITH 3 SLOT MICROSTRIP ANTENNA FOR APPLICATION LTE 2.1 GHz." SINERGI 22, no. 2 (June 27, 2018): 127. http://dx.doi.org/10.22441/sinergi.2018.2.009.

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A rapid development of telecommunications technology, and over time, the existing network technologies continue to be developed. To create the latest technology called Long Term Evolution (LTE). With the technology that has a high transmission speed, of course, required new devices that can operate on this network. Antennas are needed on these networks is an antenna that is small and easily integrated. In this case, the right antenna to be used is the microstrip antenna. In this paper, which will be designed antenna is an antenna feed line rectangle shapes that can operate at a frequency of 2.1 GHz.
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38

Verma, Ramesh Kumar, and D. K. Srivastava. "A Compact Inverted Y Slot Rectangular Microstrip Patch Antenna for Bluetooth Applications." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 2 (August 1, 2018): 413. http://dx.doi.org/10.11591/ijeecs.v11.i2.pp413-418.

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<p>In this paper a compact and slotted rectangular microstrip antenna is designed at 3.00GHz frequency and it is loaded by inverted Y slot so that the bandwidth of microstrip antenna is improved upto 36.30%. The area of radiating patch for 3.00GHz frequency is 711.36mm<sup>2</sup>.The proposed antenna design has frequency band in the frequency range 2.097GHz to 3.030GHz. The proposed antenna is resonating at 2.45GHz and area of radiating patch at this frequency is 1077.97mm<sup>2</sup>. Hence the size of antenna is reduced by 34% corresponding to resonance frequency 2.45GHz. This frequency band is suitable for Bluetooth and other wireless communication applications. The proposed slotted microstrip antenna is directly feed by 50Ω microstrip line feed. The proposed antenna is simulated by IE3D simulation software based on method of moments.<em></em></p>
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39

Sheokand, Jyoti, and Davinder Parkash. "COMPACT CPW FED ANTENNA HAVING DUAL AND INVERTED BEAKER SHAPED FOR WLAN/WIMAX OPERATIONS." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 3, no. 2 (October 30, 2012): 234–37. http://dx.doi.org/10.24297/ijct.v3i2a.6775.

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In recent years, great interest is focused on microstrip antennas for their small volumes, low profiles, good integration, low costs and good performance. With the continuous growth of wireless and mobile communication service and the constant miniaturization of communication equipment, there are higher demands for the volume of antennas, integration and working band. This paper presents a basic rectangular shaped microstrip patch antenna for wireless communications system which is suitable for 4.54 GHz to 5.632 GHz band operations. These systems may include upper higher bands of WiMAX (Worldwide Interoperability for Microwave Access) and wireless local-area network (WLAN). A rectangular ring slot is cut and double T shape along with one inverted beaker slot is embedded into it. Besides that, in the inverted beaker shape, similar shape slot is cut. This design has several advantages such as compact size, omnidirectional radiation pattern etc. which all are studied. The results confirm good performance of the single and multiband antenna design.
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40

Park, Byoung-Woo, and Hye-Jung Shin. "Triangular Microstrip Antenna with T-type Slot." Journal of the Korea Contents Association 7, no. 7 (July 28, 2007): 24–30. http://dx.doi.org/10.5392/jkca.2007.7.7.024.

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41

A, Malipatil Shivashankar. "A Novel Rectangular Slot Loaded Microstrip Patch Antenna." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 20, 2021): 1613–15. http://dx.doi.org/10.22214/ijraset.2021.36666.

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In this communication the inclined slot loaded rectangular microstrip patch antenna fed by microstripline is presented for modern communication system. The antenna is housed in a volume of 5X3X0.16cm3. The low loss tangent and commercially available modified glass epoxy substrate material is used for the fabrication of the antenna. The design concept is presented. The proposed antenna gives a maximum bandwidth of 20.78% and overall bandwidth of 44.49% with operating range of 8.28 GHz to 12 GHz. The antenna shows broadside and linear radiation characteristics with a peak gain of 7.08 dB. The experimental and simulated results are compared. This antenna may find its applications in X-band range communication systems.
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42

Refaat, S. Mohamed, A. Abdalaziz, and E. K. I. Hamad. "Tri-Band Slot-Loaded Microstrip Antenna for Internet of Things Applications." Advanced Electromagnetics 10, no. 1 (March 17, 2021): 21–28. http://dx.doi.org/10.7716/aem.v10i1.1514.

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A new design of a multiband microstrip patch antenna using slots in the patch as well as defected ground structures (DGS) implemented in the ground plane is proposed. Multi resonance response was obtained by etching the DGS shapes in the ground plane of a Traditional patch operates at 5.2 GHz, which is the common frequency for the Internet of Things (IoT) applications. The novel outcome of this work is a compact antenna that resonates at three bands, viz. 2.42, 5.22 and 5.92 GHz. Different shapes of slots were used to improve the antenna performance at the different resonances. The antenna used the inset feeding technique to improve impedance matching. Rogers RO3003 substrate of 3 relative dielectric constant, 0.0013 loss tangent, and 1.5 mm thickness was used to build the antenna. The designed antenna was simulated using HFSS software. The good consistency between simulations and measurements confirmed the antenna's ability to improve the benefits for IoT applications at the three different frequencies.
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43

Fan, Xing Kai. "Simulation Study of Miniaturization Multi-Band Microstrip Antenna Design." Applied Mechanics and Materials 321-324 (June 2013): 2772–75. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.2772.

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A slot-loaded tri-band antenna was designed by electromagnetic simulation software, in which the parameter changes on the antenna centre resonance ratio, such as the location of the antenna coaxial feed point, the width, location, and the length of the slot, were studied. The results show that the length of the slot has the strongest influence on antenna centre resonance ratio.
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44

Ma, Zhong-Hua, Jia-Xiang Chen, Peng Chen, and Yan Feng Jiang. "Design of Planar Microstrip Ultrawideband Circularly Polarized Antenna Loaded by Annular-Ring Slot." International Journal of Antennas and Propagation 2021 (March 17, 2021): 1–10. http://dx.doi.org/10.1155/2021/6638096.

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A miniaturized planar microstrip circularly polarized ultrawideband (UWB) antenna loaded by annular-ring slot is proposed and implemented in the paper. With the annular-ring slot loaded in the radiating patch of the antenna, the side of the radiating patch is connected by the asymmetric inverted L-shaped microstrip. At the same time, a quarter of a circle is cut off from the radiating patch. The above designed structure shows improvements on the operating frequency band and realization of the circular polarization radiation. A tapered microstrip is placed between the feed line and the radiating patch to achieve the slow-changing impedance transformation. The results of simulation and measurement demonstrate that the 3 dB axial ratio (AR) fractional bandwidth of the antenna structure achieves 21.25%. The peak gain within the 3 dB axial ratio bandwidth fluctuates between 3.74 and 4.59 dBi. The antenna shows good impedance matching in the ultrawideband range. With the compact structure of the UWB antenna, it has potential application in various wireless communication devices.
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45

Awl, Halgurd N., Yadgar I. Abdulkarim, Lianwen Deng, Mehmet Bakır, Fahmi F. Muhammadsharif, Muharrem Karaaslan, Emin Unal, and Heng Luo. "Bandwidth Improvement in Bow-Tie Microstrip Antennas: The Effect of Substrate Type and Design Dimensions." Applied Sciences 10, no. 2 (January 10, 2020): 504. http://dx.doi.org/10.3390/app10020504.

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In this work, the impact of substrate type and design dimensions on bow-tie microstrip antenna performance and bandwidth improvement is presented both numerically and experimentally at 4–8 GHz. The finite integration technique (FIT)-based high-frequency electromagnetic solver, CST Microwave Studio, was used for the simulation analysis. For this purpose, four bow-tie microstrip antennas were designed, fabricated, and measured upon using different materials and substrate thicknesses. Precise results were achieved and the simulated and experimental results showed a good agreement. The performance of each antenna was analyzed and the impact of changing material permittivity, antenna dimensions and substrate thicknesses on antenna performance were investigated and discussed. The measured results indicated that the slot bow-tie antenna, which is one of the novel aspects of this study, is well matched and a 2-GHz bandwidth [5–7 GHz] is obtained, which is about 50% bandwidth in comparison with the wideband applications [4–8 GHz]. The proposed structure is useful in ultra-wideband (UWB) applications. This study provides guidance in selecting material types and thicknesses for microstrip antennas based on desired applications.
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46

Chin, Kuo-Sheng, Chi-Sheng Wu, Chien-Lung Shen, and Kun-Chuan Tsai. "Designs of Textile Antenna Arrays for Smart Clothing Applications." Autex Research Journal 18, no. 3 (September 1, 2018): 295–307. http://dx.doi.org/10.1515/aut-2018-0002.

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Abstract In this work, three designs of textile antennas, namely, a rectangular microstrip patch antenna, annular slot antenna, and planar inverted-F antenna (PIFA), operating in the 2.45 GHz WLAN band were developed for smart clothing applications. Conductive textile, a copper-plated polyester fabric, was used for fabricating antenna radiators and grounds. An insulating neoprene fabric with a thickness of 4 mm and a permittivity of 1.5 was used for preparing the substrates. The textile patch antenna achieved a maximum gain of 5.96 dBi and a bandwidth of 4.6%. The annual slot antenna showed a moderate gain and bandwidth of 2.9 dBi and 13.1%, respectively. The PIFA achieved the widest bandwidth of 31% but the smallest gain of 1.2 dBi. Furthermore, the performance deterioration of the proposed antennas under various bending conditions was analyzed to evaluate their suitability for wearable applications. Moreover, two 2 × 2 patch and slot antenna arrays were assembled to increase gain and bandwidth. The measured results proved that the developed antenna designs provide superior performance.
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47

Rao, K. Prahlada, R. M. Vani, and P. V. Hunagund. "Mitigation of mutual coupling in microstrip antenna arrays." Технология и конструирование в электронной аппаратуре, no. 5-6 (2019): 16–24. http://dx.doi.org/10.15222/tkea2019.5-6.16.

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This article demonstrates the alleviation of mutual coupling of a simple and low-cost four-element microstrip array antenna by loading I-shaped slot-type electromagnetic band gap structure in the ground plane. FR-4 glass epoxy is used as dielectric substrate. Moreover, the proposed array antenna shows a better performance in terms of multi-band resonance. The antenna is resonating at four frequencies and a virtual size reduction of 78.48% is obtained. The designed array antenna possesses directional radiation properties. Mentor Graphics IE3D software is used to design and simulate the designed antennas and the measured results are obtained using vector network analyser.
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48

Siri Chandana, R., P. Sai Deepthi, D. Sriram Teja, N. Veera JayaKrishna, and M. Sujatha. "Design of a Single Band Microstrip Patch Antenna for 5G Applications." International Journal of Engineering & Technology 7, no. 2.7 (March 18, 2018): 532. http://dx.doi.org/10.14419/ijet.v7i2.7.10877.

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This article is about a single band microstrip patch antenna used for the 5G applications. And this antenna is suitable for the millimeter wave frequency. The patch antenna design consists of 2 E shaped slots and 1 H shaped slot. These slots are loaded on the radiating patch with the 50 ohms microstrip feed line. For the simulation purpose, Rogers’s RT5880 dielectric substrate with relative permittivity of 2.2 and loss tangent of 0.0009 is used. The design and simulation of the antenna is done using HFSS (High Frequency Structure Simulator) software. The results are simulated for the parameters Return loss, VSWR, 3D Radiation pattern. The proposed antenna has a return loss of -42.4383 at 59 GHz millimeter wave frequency.
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J. P. Ganji, J. P. Ganji, M. C. Sahoo M.C.Sahoo, and J. M. Rathod J.M.Rathod. "Design and Analysis of Air Gap Microstrip Slot Antenna Using Aperture Coupling." International Journal of Scientific Research 2, no. 4 (June 1, 2012): 104–6. http://dx.doi.org/10.15373/22778179/apr2013/40.

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50

Karimian, Reza, and Hamed Tadayon. "Multiband MIMO Antenna System with Parasitic Elements for WLAN and WiMAX Application." International Journal of Antennas and Propagation 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/365719.

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A new microstrip slot antenna with parasitic elements has been presented in this paper. The proposed antenna is composed of a microstrip feed line, a ground plane on which some simple slots are etched, and parasitic elements. Simulation results show that the antenna structure allows for the independent adjustment of each frequency. A two-element array configuration of this antenna for MIMO application is investigated as well. For comparison between simulation and measurement result both single and array configurations have been fabricated. The measurement result exhibits good radiation performance in terms of return loss, low mutual coupling, and compactness.
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