Multilayer partially reflective surfaces for broadband fabry-perot cavity antennas

Konstantinos Konstantinidis; Alexandros P. Feresidis; Peter S. Hall

doi:10.1109/TAP.2014.2320755

Multilayer partially reflective surfaces for broadband fabry-perot cavity antennas

Konstantinos Konstantinidis, Alexandros P. Feresidis, Peter S. Hall

Electronic, Electrical and Systems Engineering

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

121 Citations (Scopus)

1029 Downloads (Pure)

Abstract

A high-gain broadband Fabry-Perot-type antenna is proposed, based on multilayer periodic partially reflective surfaces (PRSs). Three layers of PRSs are employed, consisting of metallic patches printed on thin dielectric substrates and placed in front of a ground plane, forming three open cavities. The antenna performance is based on the reflection characteristics of the PRS array, which are obtained using periodic analysis. An equivalent circuit approach is presented for the design of the multilayer PRSs showing very good agreement with full-wave analysis. The geometry has been optimized using full-wave simulations (CST Microwave Studio). An antenna of around 20-dBi gain at an operating frequency of 14.5 GHz is obtained with a 3-dB bandwidth of about 15%, outperforming earlier antenna designs based on two-layer PRS. A prototype has been fabricated and tested, validating the simulation results.

Original language	English
Article number	6807706
Pages (from-to)	3474-3481
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	62
Issue number	7
DOIs	https://doi.org/10.1109/TAP.2014.2320755
Publication status	Published - 29 Apr 2014

Keywords

Broadband antennas
Fabry-Perot cavities (FPC)
high gain
leaky wave antennas
partially reflective surface (PRS)
periodic structures

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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10.1109/TAP.2014.2320755

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Cite this

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abstract = "A high-gain broadband Fabry-Perot-type antenna is proposed, based on multilayer periodic partially reflective surfaces (PRSs). Three layers of PRSs are employed, consisting of metallic patches printed on thin dielectric substrates and placed in front of a ground plane, forming three open cavities. The antenna performance is based on the reflection characteristics of the PRS array, which are obtained using periodic analysis. An equivalent circuit approach is presented for the design of the multilayer PRSs showing very good agreement with full-wave analysis. The geometry has been optimized using full-wave simulations (CST Microwave Studio). An antenna of around 20-dBi gain at an operating frequency of 14.5 GHz is obtained with a 3-dB bandwidth of about 15%, outperforming earlier antenna designs based on two-layer PRS. A prototype has been fabricated and tested, validating the simulation results.",

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Multilayer partially reflective surfaces for broadband fabry-perot cavity antennas

Abstract

Keywords

ASJC Scopus subject areas

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