A resonant cavity antenna based on an optimized thin superstrate

Yuehe Ge; Karu P. Esselle

doi:10.1002/mop.23898

A resonant cavity antenna based on an optimized thin superstrate

Yuehe Ge^*, Karu P. Esselle

^*Corresponding author for this work

Faculty of Science and Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A high-gain, low-profile electromagnetic band-gap (EBG) resonator antenna based on a thin frequency-selective-surface (FSS) superstrate is presented. The superstrate thickness has been reduced from 0.25λ_g in the previous design to about 0.06λ_g without significantly affecting the antenna performance. The FSS superstate is made out of standard low-cost FR4 material. The high-gain performance is achieved by optimizing the metallic patterns printed on the two surfaces of the superstrate so that a high-Q resonant cavity is obtained. A prototype demonstrates that an EBG resonator antenna made out of a 0.8 mm thick optimized superstrate can provide a gain as high as over 21 dB at the operating frequency of 12 GHz.

Original language	English
Pages (from-to)	3057-3059
Number of pages	3
Journal	Microwave and Optical Technology Letters
Volume	50
Issue number	12
DOIs	https://doi.org/10.1002/mop.23898
Publication status	Published - Dec 2008

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A resonant cavity antenna based on an optimized thin superstrate

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