Design of a broadband circularly polarized rectenna for microwave power transmission | Zendy

Lee ChienHsing | Zendy; Chang YuHan | Zendy

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Design of a broadband circularly polarized rectenna for microwave power transmission

Author(s) -

Lee ChienHsing,

Chang YuHan

Publication year - 2015

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.28931

Subject(s) - rectenna , microwave , antenna (radio) , schottky diode , optoelectronics , electrical engineering , materials science , rectifier (neural networks) , microwave transmission , optics , physics , diode , voltage , engineering , telecommunications , rectification , computer science , stochastic neural network , machine learning , recurrent neural network , artificial neural network

This article presents a broadband circularly polarized (CP) rectifying antenna (rectenna) for microwave power transmission at 4.2–7.6 GHz, comprising a broadband CP antenna, and a rectifier circuit. The antenna consists of a standard Schiffman phase shifter and a pair of orthogonally positioned linearly polarized slot antennas with equal radiation strength. The rectifier circuit is composed of a microwave Si Schottky detector diode (HSMS‐2862), a low‐pass filter, a load resistor, and a ripple capacitor. Output dc voltage of 1.98 V over a 680 Ω load resistance and the maximum microwave‐to‐dc conversion efficiency of 81.6 % were measured when 34 dBm microwave power was transmitted at 5.6 GHz over a distance of 50 cm. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:702–706, 2015

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