Gain Enhancement in a Fabry-Perot Cavity Antenna using Phase Correcting Miniaturised FSS
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Espinosa, Hugo
Dewani, Aliya
O'Keefe, Steven
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Abstract
This paper investigates a method to enhance the radiation pattern of a Fabry – Perot cavity antenna (FPCA) through the use of frequency selective surfaces (FSS) to improve aperture phase distribution. Four FSS sheets were used as walls of a fully enclosed FPCA operating at 2 GHz. Electromagnetic rays at the edge of the FPCA incur a phase change when reflected off the FSS walls making the complete aperture phase distribution more uniform thereby increasing directivity. Simulations demonstrated that the phase correcting FSS walls significantly enhance the directive radiation properties of the FPCA. This includes a 2.1 dBi increase in peak directivity, and a 14.3 % reduction in 3 dB beamwidth (from 42° to 36°).
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2021 IEEE Asia-Pacific Microwave Conference (APMC)
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© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Wireless communication systems and technologies (incl. microwave and millimetrewave)
Nanotechnology
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Catton, G; Espinosa, H; Dewani, A; O'Keefe, S, Gain Enhancement in a Fabry-Perot Cavity Antenna using Phase Correcting Miniaturised FSS, 2021 IEEE Asia-Pacific Microwave Conference (APMC), 2021, pp. 425-427