Journal articles: 'PIFA antenna design'

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Zhang, Li Yun, Zheng Ron Xiao, and Jun Liao. "An Improved Design of PIFA Antenna on Mobile Phone." Advanced Materials Research 718-720 (July 2013): 1634–38. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1634.

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Firstly, the development and principle of PIFA antenna in mobile phone are introduced, and the typical PIFA antenna design is analyzed. The PIFA antenna simulation is based on HFSS software. It is found that the high frequency bandwidth of this kind of antenna is very narrow. Then related parameters are optimized, by increasing the parasitic branch in high frequency band. Simulation results show that the return loss of PIFA antenna in high band is improved and the antenna can be expanded in high band, and matched in low band simultaneously.

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Li, Hong Mei, Jin Yue Wang, Li Kun Xing, Xin Yu Cao, and Tie Xin Yang. "A Design of EBG-PIFA for RFID Applications in UHF Band." Applied Mechanics and Materials 427-429 (September 2013): 1141–44. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.1141.

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One of the longstanding problems in planar inverted F antenna (PIFA) is its efficiency, which reduces as PIFA is placed too close to the ground. In this paper a kind of mushroom-like Electromagnetic band gap (EBG) structure with three conductor layers is designed In the UHF band, which has smaller unit cells and thinner thickness compared to classical ones. This kind of mushroom-like EBG structure is used as the reflector of PIFA with capacitor structure. It is demonstrated that PIFAs with EBG grounds have higher radiation efficiency than those with PEC ground. At the same time, no significant changes in the antenna resonance frequency and the radiation patterns are found. The theoretical prediction is well verified by results of both simulation and experiment.

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Haque, Akramul, Sheikh Alimur Razi, Nur Mohammad, Md Shamsul Arifin, and Quazi Delwar Hossain. "A Design Consideration for Planar Inverted Fractal Antenna to Minimize Length-Dependent Specific Absorption Rate." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 3 (December 1, 2018): 1171. http://dx.doi.org/10.11591/ijeecs.v12.i3.pp1171-1178.

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<p>This paper presents a numerical solution to minimize electromagnetic radiation from a Planar Inverted Fractal Antenna (PIFA) used in cellular phone. The PIFA is simulated using a semiconductor substrate having a dielectric constant of 3.38. The height of the dielectric substrate is 0.813 mm. The designed antenna is simulated at a broad range of microwave frequency spectrum used in cellular communication. A 50-ohm probe of 0.5 mm radius perpendicular to the ground substrate plate is used as a feeding medium. The antenna performance is evaluated for three different lengths keeping all other parameters constant. Simulation results show that the intended PIFA having a length of 20 mm can be used effectively to reduce the Specific Absorption Rate (SAR) of radiation. Moreover, the reflection coefficient was found to be minimal 0.1569 at 20 mm antenna length which is determined by characteristic impedance relation. Therefore, this investigation of minimizing the radiation absorption can be considered during the implementation phase of various cellular antennas to avoid radiation-related health hazards.</p>

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Casula, Giovanni, and Giorgio Montisci. "A Design Rule to Reduce the Human Body Effect on Wearable PIFA Antennas." Electronics 8, no. 2 (February 21, 2019): 244. http://dx.doi.org/10.3390/electronics8020244.

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The robustness of wearable Ultra-High Frequency (UHF)-band planar inverted-F Antennas (PIFAs) with respect to coupling with the human body is an extremely difficult challenge for the designer. In this work a design strategy is presented to help the designer to adequately shape and extend the antenna ground plane, which has been derived by accurately analyzing the distribution of the electric and magnetic energy densities of the antenna in a region around the antenna borders. The optimal extension of the ground plane will be discussed for three different grounded antennas, both in terms of free space wavelength, and in terms of electric energy density magnitude. Following these rules, the antenna robustness with respect to the coupling with the human body can be significantly improved, but with a minimal impact on the antenna size. The antenna robustness has been successfully tested considering several models for the human phantom in the simulation environment. The numerical simulations, performed using Computer Simulation Technology (CST) Microwave Studio, have been confirmed by experimental data measured for one of the analyzed grounded antenna configurations.

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Ahmad, Muhammad Sajjad, and Che Young Kim. "Dual-Element PIFA Design with Dual Shorting Pins for Multiband Communication Devices." International Journal of Antennas and Propagation 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/742352.

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A low profile multiband resonant, dual-element array antenna is proposed for use in handheld communication devices. The proposed antenna comprises two dual shorting pin planar inverted-F antennas and a folded ground plane which operates as a perfect electric conductor case. The feeding scheme adopted for the proposed design produces a fixed phase difference between two antenna elements of the design to achieve an ultrawide bandwidth and a flexible radiation pattern. The proposed antenna design is simulated with commercially available software, which is based on the finite element method. The resonant frequency bands covered are GSM850/900, DCS1800, PCS1900, UMTS2100, and LTE2300/2600 MHz. Details of the design considerations for the proposed antenna are described and the simulated and measured results are presented and discussed, which are in agreement.

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Mo, Lingfei, and Chenyang Li. "Double Loop Inductive Feed Patch Antenna Design for Antimetal UHF RFID Tag." International Journal of Antennas and Propagation 2019 (March 21, 2019): 1–8. http://dx.doi.org/10.1155/2019/2917619.

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Planar UHF RFID antimetal tag can be widely used for the metallic products or packages with metal material inside. A double loop inductive feed planar patch antenna is proposed for UHF RFID tag mounted on metallic objects. Compared to conventional microstrip antennas or PIFA antennas used for UHF RFID tags, the double loop inductive feed patch antenna has a planar structure, with no short via or short wall, which could decrease the manufacturing cost of the tags. The double loop inductive feed structure also increases the radiation performance of the planar antenna. Moreover, the double loop inductive feed structure makes the impedance of the patch antenna be tuned easily for conjugate impedance matching.

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Mohd Razali, Nurul Inshirah, Norhudah Seman, and Nur Ilham Aliyaa Ishak. "Design and Specific Absorption Rate of 2.6 GHz Rectangular-Shaped Planar Inverted-F Antenna." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 2 (May 1, 2018): 741. http://dx.doi.org/10.11591/ijeecs.v10.i2.pp741-747.

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<span lang="EN-US">This article presents the investigation of specific absorption rate (SAR) of a rectangular-shaped planar inverted-F antenna (PIFA) at frequency of 2.6 GHz. Initially, the design antenna is presented with parametric study concerning the dimensions of antenna patch length, shorting plate, ground plane and substrate. The proposed PIFA antenna has -20.46 dB reflection coefficient and 2.383 dB gain. The PIFA’s SAR is correlated with the antenna gain and excitation power. The analysis shows that higher gain contributes to a lower SAR value. While, the higher excitation power causes a higher SAR value. All the design and analysis are performed using the CST Microwave Studio</span>

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Cheung, Cheuk Yin, Joseph S. M. Yuen, and Steve W. Y. Mung. "Miniaturized Printed Inverted-F Antenna for Internet of Things: A Design on PCB with a Meandering Line and Shorting Strip." International Journal of Antennas and Propagation 2018 (2018): 1–5. http://dx.doi.org/10.1155/2018/5172960.

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This paper focuses on a printed inverted-F antenna (PIFA) with meandering line and meandering shorting strip under 2.4 GHz industrial, scientific, and medical (ISM) band for Internet of things (IoT) applications. Bluetooth Low Energy (BLE) technology is one of potential platforms and technologies for IoT applications under ISM band. Printed circuit board (PCB) antenna commonly used in commercial and medical applications because of its small size, low profile, and low cost compared to low temperature cofired ceramic (LTCC) technology. The proposed structure of PIFA is implemented on PCB to gain all these advantages. Replacing conventional PCB line in PIFA by the meandering line and meandering shorting strip improves the efficiency of the PIFA as well as the bandwidth. As a case study, design and measurement results of the proposed PIFA are presented.

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Ghnimi, S., A. Nasri, and A. Gharsallah. "Study of a New Design of the Planar Inverted-F Antenna for Mobile Phone Handset Applications." Engineering, Technology & Applied Science Research 10, no. 1 (February 3, 2020): 5270–75. http://dx.doi.org/10.48084/etasr.3287.

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This paper suggests a new design of the PIFA antenna for mobile phone handset applications. In this context, we are interested in the development of new techniques based on the creation of slot matching for the improvement and miniaturization of a dual-band PIFA antenna operating at 900MHz and 1800MHz. Analysis of antenna parameters such as return loss (S11), radiation pattern, Voltage Standing Wave Ratio (VSWR), current distributions, gain, and the relation between them are performed in CST software. There is a good agreement between the results of simulation by CST and HFSS and those of measurement for the proposed antenna.

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Rudant, L., C. Delaveaud, and P. Ciais. "Compact Multiantenna." International Journal of Antennas and Propagation 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/748070.

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Planar inverted-f antenna (PIFA) and notch antenna are combined within a compact 2-port MIMO antenna. Electrical and magnetic duality of the two antennas avoids a critical coupling and best performances can be expected for multiple-input multiple-output (MIMO) communication. When excitation of notch antenna is optimized properly, the notch length can be short enough so that the two antennas can be colocated in a single compact volume. This compact multiantenna design is suitable for integration in MIMO handheld terminals. A prototype for broadband network application in 3.4–3.8’GHz frequency band has been characterized in anechoic chamber.

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Ojaroudi Parchin, Naser, Haleh Jahanbakhsh Basherlou, and Raed A. Abd-Alhameed. "Design of Multi-Mode Antenna Array for Use in Next-Generation Mobile Handsets." Sensors 20, no. 9 (April 25, 2020): 2447. http://dx.doi.org/10.3390/s20092447.

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In this study, a new design of a tri-band multiple-input–multiple-output (MIMO) antenna array is proposed for fifth-generation (5G) cellular systems. Its structure is composed of eight identical planar-inverted F antenna (PIFA) elements placed at different edge corners of the handset mainboard with overall dimensions of 150 × 75 mm2. The PIFA elements and ground plane of the MIMO antenna system are arranged on the back layer of the platform, which makes the design easy to integrate with the handset circuit. For S11 ≤ −10 dB, the radiation elements of the MIMO design operate at the frequency ranges of 2.5–2.7 GHz, 3.4–3.75 GHz, and 5.6–6 GHz covering the long-term evolution (LTE) 41, 42/43, and 47 operation bands, respectively. The array achieves better than 15 dB return loss results across the three operating bands. The presented antenna array not only exhibits multi-band operation but also generates the polarization diversity characteristic, which makes it suitable for multi-mode operation. The proposed antenna array was simulated and experimentally tested. Fundamental characteristics of the proposed design are investigated. It offers three band S-parameters with acceptable isolation and dual-polarized radiation with quite good efficiency and gain results. Besides this, the total active reflection coefficient (TARC) and envelope correlation coefficient (ECC) results of the PIFAs are very low over the bands. In addition, the radiation characteristics of the MIMO antenna in the presence of the user and handset components are studied. Moreover, a new and compact phased array millimeter-wave (MM-Wave) antenna with broad bandwidth and end-fire radiation is introduced which can be easily integrated into the smartphone antenna system. Due to its good performance and simple structures, the proposed smartphone antenna array design is a good candidate for future multi-mode 5G cellular applications.

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谷, 成. "The Optimal Design of UHF PIFA Array Antenna." Open Journal of Circuits and Systems 06, no. 01 (2017): 21–31. http://dx.doi.org/10.12677/ojcs.2017.61003.

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Pardhasaradhi, P., B. T.P. Madhav, D. Rajendra Kamal, M. Chinna Somaiah, Ch Gayathri, M. Koteswara Rao, and T. Anilkumar. "Design of a compact reconfigurable antenna with triple band switchable characteristics." International Journal of Engineering & Technology 7, no. 1.1 (December 21, 2017): 554. http://dx.doi.org/10.14419/ijet.v7i1.1.10165.

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Antennas with reconfigurable functionality is the mostly preferred one in the antennas field. In such scenario, a work is presented in this article proposing a frequency reconfigurable antenna with a compact PIFA kind of structure. The antenna structure has the folded radiating structure and embedded with some lumped resistance and distributed capacitance, inductance for providing the impedance matching across desired bands for wireless communication. Further, the switching elements (PIN diodes-BAR64-02V) are inserted in the gap between the long-meandered line structure for attaining the switchable characteristics among single band (0.68-0.98 GHz), dual band (0.70 – 0.96 GHz, 2.26 - 2.65 GHz), and triple band (0.69 - 0.99 GHz, 1.89 - 2.78 GHz, 3.64 – 4.1 GHz) respectively. The impedance bandwidth is considered according to S11 < -6 dB criteria for the mobile communication applications. The proposed antenna is suitable for smartphone, laptop and portable devices with GSM/PCS/WCDMA/UMTS/LTE communication applications.

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Islam, Mohammad, Md Ullah, Touhidul Alam, Mandeep Singh, and Mengu Cho. "Microwave Imaging Sensor Using Low Profile Modified Stacked Type Planar Inverted F Antenna." Sensors 18, no. 9 (September 5, 2018): 2949. http://dx.doi.org/10.3390/s18092949.

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Microwave imaging is the technique to identify hidden objects from structures using electromagnetic waves that can be applied in medical diagnosis. The change of dielectric property can be detected using microwave antenna sensor, which can lead to localization of abnormality in the human body. This paper presents a stacked type modified Planar Inverted F Antenna (PIFA) as microwave imaging sensor. Design and performance analysis of the sensor antenna along with computational and experimental analysis to identify concealed object has been investigated in this study. The dimension of the modified PIFA radiating patch is 40 × 20 × 10 mm3. The reflector walls used, are 45 mm in length and 0.2-mm-thick inexpensive copper sheet is considered for the simulation and fabrication which addresses the problems of high expenses in conventional patch antenna. The proposed antenna sensor operates at 1.55–1.68 GHz where the maximum realized gain is 4.5 dB with consistent unidirectional radiation characteristics. The proposed sensor antenna is used to identify tumor in a computational human tissue phantom based on reflection and transmission coefficient. Finally, an experiment has been performed to verify the antenna’s potentiality of detecting abnormality in realistic breast phantom.

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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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Islam, Nasim Al, and Farhadur Arifin. "Design and Performance Measurement of a Miniaturized Implantable PIFA Antenna for Biomedical Applications." AIUB Journal of Science and Engineering (AJSE) 16, no. 1 (March 31, 2017): 61–68. http://dx.doi.org/10.53799/ajse.v16i1.33.

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An implantable PIFA (Planar Inverted F Antenna) antenna for biomedical applications is proposed in this study. The main notability of this design refers to its subtle dimension, flexibility and subordinate thickness that makes it perfectly suitable for implementing inside human or animal tissues for Wireless Body Area Networks (WBAN). The antenna is aimed to operate in the Industrial, Scientific and Medical (ISM) band (2.4–2.4835 GHz). The thickness of this antenna is only 0.735 mm, which implies that this antenna is suitable to perform under bent conditions. The antenna offers a compact design with a dimension of 9.48 mm × 7.8 mm × .735 mm (54.348 mm3). Copper and Rogers R03010 are chosen as the patch material and substrate material accordingly. The antenna is encapsulated inside biocompatible material Rogers R03010 for safety concern inside skin or muscle tissues. Several types of analysis and performance measurement of this antenna have been done by using CST Microwave studio in both planar and bent conditions by maintaining the electrical properties of human skin tissues. Specific Absorption Rate (SAR) and thermal loss are evaluated to comply with the antenna safety issues. For proving biocompatibility and versatility of this antenna, performance analysis by changing different patch materials and substrate materials have been done after putting the antenna inside different human tissue models. Finally, the antenna is fabricated on to a FR4 substrate and its performance is measured using Agilent Technologies E5071C Network Analyzer.

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Khan, Mohammad Monirujjaman, and Tabia Hossain. "Compact Planar Inverted F Antenna (PIFA) for Smart Wireless Body Sensors Networks." Engineering Proceedings 2, no. 1 (November 14, 2020): 63. http://dx.doi.org/10.3390/ecsa-7-08253.

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In this paper a dual band, a dual band Planar Inverted F antenna (PIFA) is designed for wireless communication intended to be used in wireless body sensor networks. The designed PIFA operates at two different frequency bands, 2.45 GHz Industrial, Scientific and Medical band (ISM) and 5.2 GHz (HiperLAN band). In body-centric wireless networks, antennas need to be integrated with wireless wearable sensors. An antenna is an essential part of wearable body sensor networks. For on-body communications, antennas need to be less sensitive to human body effects. For body-centric communications, wearable devices need to communicate with the devices located over the surface, and there is a need of communication from on-body devices to off-body units. Based on this need, a dual band planar inverted F antenna is designed that works at two different frequency bands, i.e., 2.45 GHz and 5.2 GHz. The 2.45 GHz is proposed for establishing communication among the wireless sensor devices attached to the human body, while 5.2 GHz is proposed for the communications for from on-body to off-body devices. The proposed antenna is very compact, and due to having ground plane at the backside it is less sensitive to the effects of the human body tissues. Computer Simulation Technology (CST) microwave studio™ was used for antenna design and simulation purposes. Performance parameters such as return loss, bandwidth, radiation pattern and efficiency of this antenna are shown and investigated. These performance parameters of the proposed antenna have been investigated at free space and close proximity to the human body. Simulation results and analysis show that the performance parameters produce very good results for both frequency bands. Due to its compact size, low sensitivity to human body tissues, and dual band functionality, it will be a good candidate for wireless wearable body sensor networks.

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Manikandan, R., and P. K. Jawahar. "Quad Band Planar Inverted F Antenna for Smart Phone." Applied Mechanics and Materials 573 (June 2014): 394–99. http://dx.doi.org/10.4028/www.scientific.net/amm.573.394.

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In recent years, the demand for compact handheld communication devices has grown significantly. For device miniaturization antenna size is to be reduced. Micro strip and PIFA have been used for past few years. Since it has low profile geometry it can be embedded into devices. This project is to develop a Quad band small size Planar Inverted F Antenna (PIFA) for the operation in modern multi-band mobile transceiver system. Various techniques for analysis and design of such antenna investigated in this project. The design curve is used to design Quad band Planar inverted F Antenna to operate at the 900, 1800, 2100 and 3500 MHz bands. Since High Frequency Structure Simulator (HFSS) simulation result agrees well with the theoretical predictions, this project also designed through HFSS. An antenna designed at the four desired band and optimized to adjust the four resonance frequencies using HFSS simulation. The substrate FR4 (εr=4.4 & tanδ = 0.02) are in good agreement with the simulation result. Further bandwidth enhancements by making defects in the substrate at particular area were need of much reflection.

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boli, J. Silam, J. Jenifer Nesamani, Diksha Raina, P. Anushya, and M. Mani mozhi. "Design of Key Shaped Slotted PIFA Antenna for Wireless Applications." International Journal of Engineering Trends and Technology 45, no. 1 (March 25, 2017): 14–16. http://dx.doi.org/10.14445/22315381/ijett-v45p204.

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Rouissi, Ines, Jean-Marie Floc�h, Hatem Rmili, and Hichem Trabelsi. "Design of Frequency Reconfigurable PIFA Antenna With Floating Ground Plane." Indian Journal of Science and Technology 11, no. 5 (February 1, 2018): 1–11. http://dx.doi.org/10.17485/ijst/2018/v11i5/118872.

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Wikiman, Oluseun Oyeleke, Olabode Idowu-Bismark, Oluwafemi Ilesanmi, Sadiq Thomas, and Dyaji Charles Bala. "PIFA Antenna Design for MmWave Body Centric 5G Communication Applications." International Journal of Electronics and Communication Engineering 6, no. 4 (April 25, 2019): 6–10. http://dx.doi.org/10.14445/23488549/ijece-v6i4p102.

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Ishfaq, Muhammad Kamran, Tharek Abd Rahman, Hassan Tariq Chattha, and Masood Ur Rehman. "Multiband Split-Ring Resonator Based Planar Inverted-F Antenna for 5G Applications." International Journal of Antennas and Propagation 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/5148083.

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5G, the fifth generation of wireless communications, is focusing on multiple frequency bands, such as 6 GHz, 10 GHz, 15 GHz, 28 GHz, and 38 GHz, to achieve high data rates up to 10 Gbps or more. The industry demands multiband antennas to cover these distant frequency bands, which is a task much more challenging. In this paper, we have designed a novel multiband split-ring resonator (SRR) based planar inverted-F antenna (PIFA) for 5G applications. It is composed of a PIFA, an inverted-L parasitic element, a rectangular shaped parasitic element, and a split-ring resonator (SRR) etched on the top plate of the PIFA. The basic PIFA structure resonates at 6 GHz. An addition of a rectangular shaped parasitic element produces a resonance at 15 GHz. The introduction of a split-ring resonator produces a band notch at 8 GHz, and a resonance at 10 GHz, while the insertion of an inverted-L shaped parasitic element further enhances the impedance bandwidth in the 10 GHz band. The frequency bands covered, each with more than 1 GHz impedance bandwidth, are 6 GHz (5–7 GHz), 10 GHz (9–10.8 GHz), and 15 GHz (14-15 GHz), expected for inclusion in next-generation wireless communications, that is, 5G. The design is simulated using Ansys Electromagnetic Suite 17 simulation software package. The simulated and the measured results are compared and analyzed which are generally in good agreement.

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Panagiotou, Stylianos C., Stelios C. A. Thomopoulos, and Christos N. Capsalis. "Genetic Algorithms in Antennas and Smart Antennas Design Overview: Two Novel Antenna Systems for Triband GNSS Applications and a Circular Switched Parasitic Array for WiMax Applications Developments with the Use of Genetic Algorithms." International Journal of Antennas and Propagation 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/729208.

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Genetic algorithms belong to a stochastic class of evolutionary techniques, whose robustness and global search of the solutions space have made them extremely popular among researchers. They have been successfully applied to electromagnetic optimization, including antenna design as well as smart antennas design. In this paper, extensive reference to literature related antenna design efforts employing genetic algorithms is taking place and subsequently, three novel antenna systems are designed in order to provide realistic implementations of a genetic algorithm. Two novel antenna systems are presented to cover the new GPS/Galileo band, namely, L5 (1176 MHz), together with the L1 GPS/Galileo and L2 GPS bands (1575 and 1227 MHz). The first system is a modified PIFA and the second one is a helical antenna above a ground plane. Both systems exhibit enhanced performance characteristics, such as sufficient front gain, input impedance matching, and increased front-to-back ratio. The last antenna system is a five-element switched parasitic array with a directional beam with sufficient beamwidth to a predetermined direction and an adequate impedance bandwidth which can be used as receiver for WiMax signals.

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Ameerudden, Mohammad Riyad, and Harry C. S. Rughooputh. "Hybridized Genetic Algorithms in the Optimization of a PIFA Antenna Using Fitness Characterization and Clustering." Advanced Materials Research 622-623 (December 2012): 40–44. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.40.

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With the exponential development of mobile communications and the miniaturization of radio frequency transceivers, the need for small and low profile antennas at mobile frequencies is constantly growing. Therefore, new antennas should be developed to provide both larger bandwidth and small dimensions. The aim of this project is to design and optimize the bandwidth of a Planar Inverted-F Antenna (PIFA) in order to achieve a larger bandwidth in the 2 GHz band. This paper presents an intelligent optimization technique using a hybridized Genetic Algorithms (GA) coupled with the intelligence of the Binary String Fitness Characterization (BSFC) technique. The optimization technique used is based on the Binary Coded GA (BCGA) and Real-Coded GA (RCGA). The process has been further enhanced by using a Clustering Algorithm to minimize the computational cost. Using the Hybridized GA with BSFC and Clustering, the bandwidth evaluation process has been observed to be more efficient combining both high performance and minimal computational cost. During the optimization process, the different PIFA models are evaluated using the finite-difference time domain (FDTD) method.

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El Halaoui, Mustapha, Abdelmoumen Kaabal, Hassan Asselman, Saida Ahyoud, and Adel Asselman. "Multiband Planar Inverted-F Antenna with Independent Operating Bands Control for Mobile Handset Applications." International Journal of Antennas and Propagation 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/8794039.

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A new compact multiband PIFA (Planar Inverted-F Antenna) for mobile handset is proposed in this article. The proposed PIFA has a simple geometry with four slots integrated in the radiating patch and ground plane. The PIFA occupies a small volume of 51 × 14 × 7.2 mm3 and is placed on the top portion of mobile phone. The optimized PIFA is worked in the 790 MHz band (737–831 MHz), the 1870 MHz band (1794–1977 MHz), the 2550 MHz band (2507–2615 MHz), and the 3400 MHz band (3341–3545 MHz), to cover LTE700, LTE800, DCS1800, PCS1900, LTE1800, LTE1900, LTE2500, and WIMAX3400 bands. Each of the four operating bands can be controlled independently by the variation of a single parameter of the proposed design, with a wide control range. An omnidirectional radiation pattern to each resonant frequency is obtained with a maximum gain of 2.15 dBi at 790 MHz, 3.99 dBi at 1870 MHz, 4.57 dBi at 2550 MHz, and 6.43 dBi at 3400 MHz. The proposed PIFA is studied in the free space and in the presence of other mobile phone components such as the battery, LCD (liquid crystal display), camera, microphone, speaker, buttons, and a plastic housing. The distribution of specific absorption rate for both European and American standards for each operating band and at various distances between the antenna and the human head is also studied.

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Elias, Bashar Bahaa Qas, Ping Jack Soh, Azremi Abdullah Al-Hadi, Prayoot Akkaraekthalin, and Guy A. E. Vandenbosch. "Bandwidth Optimization of a Textile PIFA with DGS Using Characteristic Mode Analysis." Sensors 21, no. 7 (April 4, 2021): 2516. http://dx.doi.org/10.3390/s21072516.

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This work presents the design and optimization of an antenna with defected ground structure (DGS) using characteristic mode analysis (CMA) to enhance bandwidth. This DGS is integrated with a rectangular patch with circular meandered rings (RPCMR) in a wearable format fully using textiles for wireless body area network (WBAN) application. For this integration process, both CMA and the method of moments (MoM) were applied using the same electromagnetic simulation software. This work characterizes and estimates the final shape and dimensions of the DGS using the CMA method, aimed at enhancing antenna bandwidth. The optimization of the dimensions and shape of the DGS is simplified, as the influence of the substrates and excitation is first excluded. This optimizes the required time and resources in the design process, in contrast to the conventional optimization approaches made using full wave “trial and error” simulations on a complete antenna structure. To validate the performance of the antenna on the body, the specific absorption rate is studied. Simulated and measured results indicate that the proposed antenna meets the requirements of wideband on-body operation.

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Elouadih, Abdelhakim, Ahmed Oulad-Said, and Moha Mrabet Hassani. "Design and Simulation by HFSS of a Slim UWB PIFA Antenna." World Journal of Engineering and Technology 01, no. 02 (2013): 17–22. http://dx.doi.org/10.4236/wjet.2013.12003.

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Firoozy, Nariman, and Mahmoud Shirazi. "Planar Inverted-F Antenna (PIFA) Design Dissection for Cellular Communication Application." Journal of Electromagnetic Analysis and Applications 03, no. 10 (2011): 406–11. http://dx.doi.org/10.4236/jemaa.2011.310064.

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KumarDas, Nischal, Shakti Tripathi, and Navaid Z. Rizvi. "Performance Analysis of FICA and PIFA Antenna with LNA Co-Design." International Journal of Computer Applications 64, no. 20 (February 15, 2013): 27–30. http://dx.doi.org/10.5120/10751-5708.

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Jayasinghe, J. M. Jeevani W., and Disala Uduwawala. "A Novel Multiband Miniature Planar Inverted F Antenna Design for Bluetooth and WLAN Applications." International Journal of Antennas and Propagation 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/970152.

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A novel compact planar inverted F antenna (PIFA) optimized using genetic algorithms for 2.4 GHz (Bluetooth) and 5 GHz (UNII-1, UNII-2, UNII-2 extended, and UNII-3) bands is presented. The patch with a shorting pin is on a20×7×0.762 mm3substrate, which is suspended in air 5 mm above a30×7 mm2ground plane. Genetic algorithm optimization (GAO) is used to optimize the patch geometry, feed position, and shorting pin position simultaneously. Simulations are carried out by using HFSS and a prototype antenna is fabricated to compare the measurements with the simulations. The antenna shows fractional impedance bandwidths of 4% and 21% and gains of 2.5 dB and 3.2 dB at lower and upper bands, respectively.

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Li, Pengcheng, Jin Pan, Deqiang Yang, and Pingzai Nie. "A Novel Dual-Shorting Point PIFA (GSM850 to IMT-A) for Mobile Handsets." International Journal of Antennas and Propagation 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/436808.

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A novel planar inverted-F antenna (PIFA) with dual-shorting points is proposed for multiband mobile handsets. The antenna comprises a meandered strip, a feeding point, two shorting points, and a slotted ground plane. For bandwidth enhancement of DCS/PCS/UMTS/WLAN 11.b/LTE2300/2500 and IMT-Advanced (International Mobile Telecommunications-Advanced), the antenna applies a dual-shorting points design, which generates a multimode between 1707 and 2815 MHz. The proposed antenna has good impedance matching characteristics for GSM (824–960 MHz)/DCS (1710–1880 MHz)/PCS (1850–1990 MHz)/UMTS (1920–2170 MHz)/LTE (2300–2400 MHz, 2500–2690 MHz)/WLAN 11.b (2400–2480 MHz) and IMT-A (4200–4800 MHz). The measured radiation efficiencies of the proposed antenna were all higher than 60% in GSM850/900, DCS/PCS, UMTS, LTE2300/2500, and WLAN 802.11 b, and it is up to 86% in IMT-A.

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Lee, Jae-Gon, and Jeong-Hae Lee. "SAR Reduction Using Integration of PIFA and AMC Structure for Pentaband Mobile Terminals." International Journal of Antennas and Propagation 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6196721.

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In this paper, a capacitive grating artificial magnetic conductor (AMC) is presented to reduce the specific absorption rate (SAR) in pentaband mobile terminals. The AMC structure is implemented using a dielectric film with the printed arrays of the metal strips placed at the top and the bottom of the dielectric. It is difficult to design the AMC structure to operate at low (824~960 MHz) and high bands (1710~2170 MHz) simultaneously, because of the limited space available for the antenna. Hence, we have designed the capacitive grating AMC to operate at a high band. Then, we attached a PIFA to the AMC structure to cover low and high bands. As the AMC structure is operated as a perfect electric conductor (PEC) in low band, the radiating branches of the PIFA for the low and high bands should be located on the non-AMC and the AMC structures, respectively. Even though the AMC structure is operated at a high band, the effect against the head could be reduced in the pentaband due to the spreading effect of the electromagnetic (EM) field at lower bands. From measured results, the 1 g SAR in the case of the AMC antenna is significantly lower than that in the case where only the PIFA is present in the pentaband.

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Li, Hung-Yu, Chun-Cheng Lin, Tsai-Ku Lin, and Chih-Yu Huang. "Low-Profile Folded-Coupling Planar Inverted-F Antenna for 2.4/5 GHz WLAN Communications." International Journal of Antennas and Propagation 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/182927.

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A dual-band folded-coupling planar inverted-F antenna (FC-PIFA) is presented in this paper. By using the folded-coupling technique, the proposed antenna provides two distinct impedance bandwidths of 159 MHz (about 6.5% centered at 2.45 GHz) and 1512 MHz (about 27.5% centered at 5.5 GHz), which cover the required bandwidths for the 2.4/5 GHz wireless local area network (WLAN) communications. Moreover, the antenna shows a low profile of 5 mm and a small length of 20.5 mm in radiating area, making it easy to be installed in the casing of wireless handheld devices and laptops. Details of the design procedures and experimental results are discussed.

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Elouadih, Abdelhakim, Ahmed Oulad-Said, and Moha Mrabet Hassani. "Design and Parametric Simulation of a Miniaturized PIFA Antenna for the PCS Band." Wireless Engineering and Technology 04, no. 02 (2013): 105–11. http://dx.doi.org/10.4236/wet.2013.42016.

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Wu, Chih-Kuang, Tsung-Fu Chien, Chin-Lung Yang, and Ching-Hsing Luo. "Design of Novel S-Shaped Quad-Band Antenna for MedRadio/WMTS/ISM Implantable Biotelemetry Applications." International Journal of Antennas and Propagation 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/564092.

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A novel S-shaped quad-band planar inverted-F antenna (PIFA) is proposed for implantable biotelemetry in the Medical Device Radiocommunications Service (MedRadio) band (401–406 MHz), Wireless Medical Telemetry Service (WMTS) band (1427–1432 MHz), and industrial, scientific, and medical (ISM) bands (433-434 MHz and 2.4–2.4835 GHz). The proposed antenna reveals compact dimension of 254 mm3(10×10×2.45 mm3) and is composed of three substrates and a superstrate, which are constructed from an S-shaped radiator (layer 1) and two twin radiators of spiral structures (layer 2 and layer 3). The optimal antenna characteristics were measured in the ground pork skin, and the measured bandwidths are 150 MHz for the MedRadio and ISM bands (433 MHz), 52 MHz for the WMTS band, and 102 MHz for the ISM band (2.4 GHz), respectively. The characteristics of proposed antenna are enough to support the applications of implantable body area networks (BAN) for biotelemetry and can completely cover main available frequency bands of BAN for biotelemetry below 3 GHz.

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Ivsic, Branimir, Davor Bonefacic, Zvonimir Sipus, and Juraj Bartolic. "An Insight into Creeping Electromagnetic Waves around the Human Body." Wireless Communications and Mobile Computing 2017 (December 13, 2017): 1–8. http://dx.doi.org/10.1155/2017/2510196.

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The electromagnetic wave propagation around human body torso is modelled by considering elementary electric and magnetic dipoles over an infinite muscle-equivalent cylinder. The poles in the spectral domain Green’s function with smallest imaginary part are found to correspond to creeping wave propagation coefficients which predict the general trend in propagation around human body. In addition, it was found that axial magnetic field component is crucial for communication via creeping waves since it generates modes with smaller field decay compared to axial electric field. The developed model may thus serve as a practical guideline in design of on-body wearable antennas. The theoretical considerations are verified with simulations and measurements on the prototype of PIFA antenna placed on the human body.

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Li, Simon C., I. Tseng Tang, Yu Lieh Shih, Hsu Yang Cheng, and Wen Fan Chang. "A Compact Planar Inverted-F Antenna for Octa-Band Operations of Smart Handsets." Applied Mechanics and Materials 479-480 (December 2013): 436–41. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.436.

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This paper applies planar inverted-F antenna (PIFA) to design a smart handset antenna in accordance with octa-band operations, as GSM 850 (824-894 MHz), GSM 900 (880-960 MHz), GSM 1800/1900, DCS 1800 (1710-1880 MHz), PCS 1900 (1850-1990 MHz), UMTS (1920-2170 MHz), IEEE 802.11b WLAN (2400-2484 MHz) and LTE (700 MHz/2300 MHz/2600 MHz) band operations for S11-6 dB. The entire antenna is 75 × 22 × 5.8 mm3with one-quarter wavelength design of hub. With the inter-coupling between dual branch circuit radiation and multiple branch circuit radiation, the wideband for GSM 1800/1900, DCS, PCS, UMTS, IEEE 802.11b WLAN and LTE 700/2300/2600 is generated. When integrating with mobiles, the designed ground plane area is also taken into consideration. In this case, the ground plane area can be increased in accordance to the system motherboard.

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38

O, Bayarmaa, and Kab-Ki Kim. "The Design of Multiple-Input Multiple-Output PIFA Antenna for LTE and WiMAX Bandwidths." JOURNAL OF ADVANCED INFORMATION TECHNOLOGY AND CONVERGENCE 5, no. 1 (July 31, 2015): 21. http://dx.doi.org/10.14801/jaitc.2015.5.1.21.

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39

Thu Thu Lin, Zin, and Hla Myo Tun. "Design and Fabrication of a Planar Inverted-F Antenna (PIFA) for LEO Satellite Application." American Journal of Electromagnetics and Applications 8, no. 1 (2020): 28. http://dx.doi.org/10.11648/j.ajea.20200801.14.

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40

Bhattacharya, Rajarshi, Ramesh Garg, and Tarun K. Bhattacharyya. "Design of a PIFA-Driven Compact Yagi-Type Pattern Diversity Antenna for Handheld Devices." IEEE Antennas and Wireless Propagation Letters 15 (2016): 255–58. http://dx.doi.org/10.1109/lawp.2015.2440260.

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41

Wakrim, Layla, Abdessalam El Yassini, Asma Khabba, Saida Ibnyaich, and Moha M’Rabet Hassani. "Novel design of a triple band PIFA antenna by using a binary genetic algorithm." Journal of Computational Electronics 20, no. 3 (March 12, 2021): 1373–86. http://dx.doi.org/10.1007/s10825-021-01676-w.

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42

Kumari, Sakshi, and Vibha Rani Gupta. "Super Ultrawideband Planar Inverted F Antenna on Paper based Substrate with Low SAR." ECTI Transactions on Electrical Engineering, Electronics, and Communications 17, no. 2 (August 31, 2019): 204–13. http://dx.doi.org/10.37936/ecti-eec.2019172.225337.

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In this paper, a super ultrawide band planar inverted F antenna (PIFA) has been proposed for wearable applications on a low cost, ecofriendly paper-based substrate. This work is a first and important step towards the progression of conformal flexible antennas for a body area network. The proposed antenna has measured impedance bandwidth of 10.6 GHz, which covers almost all the bands of a wireless body area network i.e. GSM (880-960 MHz), GPS (1565-1585 MHz), DCS (1710-1880 MHz), PCS (1850-1990 MHz), UMTS (1920-2170 MHz), ISM (2.4-2.4835 GHz), WiMAX (3.3-3.8 GHz), HIPERLAN (5.15-5.35 GHz), WLAN (5.725-5.850 GHz) and UWB (3.1-10.6 GHz). Initially, the electrical characteristics of paper are extracted using Cavity Resonator and Transmission line method and then used for the design and fabrication of the proposed antenna. The measured results are in good agreement with the simulated results. This paper also focuses on analysis of the effect of electromagnetic absorption in terms of specific absorption rate for a human arm with frequency exposure at 0.9 GHz, 1.5 GHz, 1.8 GHz, 3.5 GHz, 2.45 GHz, 5.2 GHz and 5.8 GHz and is found to be within the recommended limit by FCC.

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43

Elouadih, Abdelhakim, Ahmed Oulad-Said, and Moha Mrabet Hassani. "Design and Simulation of a PIFA Antenna for the Use in 4G Mobile Telecommunications Networks." International Journal of Communications, Network and System Sciences 06, no. 07 (2013): 325–32. http://dx.doi.org/10.4236/ijcns.2013.67035.

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44

Ben Hamadi, Hamza, Said Ghnimi, Lassaad Latrach, Philippe Benech, and Ali Gharsallah. "New Design of Multi-Band PIFA Antenna with Reduced SAR for Mobile and Wireless Applications." Wireless Personal Communications 115, no. 2 (June 24, 2020): 1211–26. http://dx.doi.org/10.1007/s11277-020-07619-1.

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Alam, Touhidul, Mohammad Tariqul Islam, Md Amanath Ullah, and Mengu Cho. "A Solar Panel-Integrated Modified Planner Inverted F Antenna for Low Earth Orbit Remote Sensing Nanosatellite Communication System." Sensors 18, no. 8 (July 31, 2018): 2480. http://dx.doi.org/10.3390/s18082480.

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One of the most efficient methods to observe the impact of geographical, environmental, and geological changes is remote sensing. Nowadays, nanosatellites are being used to observe climate change using remote sensing technology. Communication between a remote sensing nanosatellite and Earth significantly depends upon antenna systems. Body-mounted solar panels are the main source of satellite operating power unless deployable solar panels are used. Lower ultra-high frequency (UHF) nanosatellite antenna design is a crucial challenge due to the physical size constraint and the need for solar panel integration. Moreover, nanosatellite space missions are vulnerable because of antenna and solar panel deployment complexity. This paper proposes a solar panel-integrated modified planner inverted F antenna (PIFA) to mitigate these crucial limitations. The antenna consists of a slotted rectangular radiating patch with coaxial probe feeding and a rectangular ground plane. The proposed antenna has achieved a −10 dB impedance bandwidth of 6.0 MHz (447.5 MHz–453.5 MHz) with a small-sized (80 mm× 90 mm× 0.5 mm) radiating element. In addition, the antenna achieved a maximum realized gain of 0.6 dB and a total efficiency of 67.45% with the nanosatellite structure and a solar panel. The challenges addressed by the proposed antenna are to ensure solar panel placement between the radiating element and the ground plane, and provide approximately 55% open space to allow solar irradiance into the solar panel.

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Elouadih, Abdelhakim, Ahmed Oulad-Said, and Moha Mrabet Hassani. "Design and Parametric Simulation of a Bi-Band Miniaturized PIFA Antenna for the GSM900 and DCS1800 Bands." Journal of Electromagnetic Analysis and Applications 05, no. 05 (2013): 189–95. http://dx.doi.org/10.4236/jemaa.2013.55030.

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47

Javadi, Kourosh, and Nader Komjani. "Investigation into Low SAR PIFA Antenna and Design a Very Low SAR U-slot Antenna using Frequency Selective Surface for cell-phones and Wearable Applications." Italian Journal of Science & Engineering 1, no. 3 (November 5, 2017): 145–57. http://dx.doi.org/10.28991/ijse-01117.

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48

See, Chan H., Raed A. Abd-Alhameed, H. I. Hraga, Issa T. E. Elfergani, Musa M. Abusitta, and S. Adnan. "Design of a PIFA with parasitic F-element miniaturized antenna assembly for lower band ultra-wideband and IEEE 802.11a applications." Microwave and Optical Technology Letters 53, no. 9 (June 16, 2011): 1970–74. http://dx.doi.org/10.1002/mop.26189.

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49

Iupikov, Oleg A., William Hallberg, Rob Maaskant, Christian Fager, Robert Rehammar, Koen Buisman, and Marianna V. Ivashina. "A Dual-Fed PIFA Antenna Element With Nonsymmetric Impedance Matrix for High-Efficiency Doherty Transmitters: Integrated Design and OTA-Characterization." IEEE Transactions on Antennas and Propagation 68, no. 1 (January 2020): 21–32. http://dx.doi.org/10.1109/tap.2019.2938738.

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50

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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Journal articles on the topic 'PIFA antenna design'

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