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Investigations and prospects of Fabry-Perot antennas:a review

Journal of Systems Engineering and Electronics 2021年第4期32卷 731-747页

作者： LIU Zhiming BORNEMANN Jens LIU Shaobin KONG Xiangkun Department of Electrical and Computer Engineering University of VictoriaVictoria V8W 2Y2Canada College of Electronic and Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Fabry-Perot(FP)antennas have characteristics of planar structures combined with high gain,and they have been widely used in wireless *** the progress of ongoing research,FP antennas have achieved various capabilities,but many of them are still under development,such as lowprofile,wideband,circular polarization,multi-band,low-radar cross section(RCS)and reconfigurable *** paper discusses the theoretical analysis methods and research progress of FP antennas,and explains the realization methods of different features of FP *** order to indicate different technologies for realizing various capabilities,the key technologies and features of some of the latest designs are ***,the research situation and prospects of FP antennas are summarized to guide their research directions in the future.

关键词： Fabry-Perot(FP)antenna partially reflective surface research situation research direction

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Resonator Rectenna Design Based on Metamaterials for Low-RF Energy Harvesting

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Computers, Materials & Continua 2021年第8期68卷 1731-1750页

作者： Watcharaphon Naktong Amnoiy Ruengwaree Nuchanart Fhafhiem Piyaporn Krachodnok Department of Electronics and Telecommunication Engineering Faculty of EngineeringRajamangala University of Technology Thanyaburi(RMUTT)Pathumthani12110Thailand Department of Telecommunications Engineering Faculty of Engineering and ArchitectureRajamangala University of Technology IsanNakhon Ratchasima30000Thailand School of Telecommunication Engineering Suranaree University of TechnologyNakhonratchasima30000Thailand

In this paper,the design of a resonator rectenna,based on metamaterials and capable of harvesting radio-frequency energy at 2.45 GHz to power any low-power devices,is *** proposed design uses a simple and inexpensive circuit consisting of a microstrip patch antenna with a mushroom-like electromagnetic band gap(EBG),partially reflective surface(PRS)structure,rectifier circuit,voltage multiplier circuit,and 2.45 GHzWi-Fi *** mushroom-like EBG sheet was fabricated on an FR4 substrate surrounding the conventional patch antenna to suppress surface waves so as to enhance the antenna ***,the antenna performance was improved more by utilizing the slotted I-shaped structure as a superstrate called a PRS *** enhancement occurred via the reflection of the transmitted *** proposed rectenna achieved a maximum directive gain of 11.62 dBi covering the industrial,scientific,and medical radio band of 2.40–2.48 GHz.A Wi-Fi 4231 access point transmitted signals in the 2.45 GHz *** rectenna,located 45◦anticlockwise relative to the access point,could achieve a maximum power of 0.53μ*** this study,the rectenna was fully characterized and charged to low-power devices.

关键词： Metamaterials energy harvesting rectenna Wi-Fi partially reflective surface EBG

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