volume | PIER Journals

2017-09-29

Design of a Frequency Reconfigurable Fabry-Perot Cavity Antenna with Single Layer Partially Reflecting Surface

Peng Xie,

Dr. Peng Xie

Air Force Engineering University

China

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Guang-Ming Wang

Professor Guang-Ming Wang

Air and Missile Defense College

Air Force Engineering University

China

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Progress In Electromagnetics Research Letters, Vol. 70, 115-121, 2017

doi:10.2528/PIERL17072505

Abstract

A novel design of frequency reconfigurable Fabry-Pérot cavity antenna is presented. The superstrate of the antenna is a reconfigurable partially reflecting surface with PIN diodes on it. A dual-band patch antenna is used as the radiator of the antenna. Through changing the states of diodes, the partially reflecting surface can present different reflection phases, so the working frequency of the antenna can be tuned. The operation of frequency reconfiguration and the design method of the antenna are described exhaustively. A prototype antenna is fabricated and measured. The measured results show that the antenna can realize 13.1 dB gain at 4.6 GHz and 17.1 dB gain at 5.5 GHz with impedance bandwidths of 3.3% and 4.7%, respectively. Good agreement between the simulated and measured results is achieved, which proves the correctness of the design method. Besides, this method can also be used to design Fabry-Pérot cavity antenna working at other frequencies.

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Peng Xie, and Guang-Ming Wang, "Design of a Frequency Reconfigurable Fabry-Perot Cavity Antenna with Single Layer Partially Reflecting Surface," Progress In Electromagnetics Research Letters, Vol. 70, 115-121, 2017.
doi:10.2528/PIERL17072505

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