Array‐based Fabry–Pérot cavity antenna for flat‐topped radiation pattern

In this letter, an array‐based ray tracing model and Fabry–Pérot cavity antenna covered by frequency selective surfaces (FSS) are proposed to realize the flat‐topped radiation pattern (FTRP). Based on the array‐based model, a good FTRP can be obtained by combining the initial directivity of the feed...

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Bibliographic Details
Published in:Microwave and optical technology letters 2022-12, Vol.64 (12), p.2207-2212
Main Authors: Ran, Xi, Wang, Xiao‐Hua, Hu, Yi‐Di, Wang, Xi‐Yu
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna radiation patterns
Antennas
array‐based ray tracing model
Directivity
dual‐polarization antenna
Fabry-Perot interferometers
Fabry–Pérot cavity antenna
flat‐topped radiation pattern
Frequencies
Frequency selective surfaces
FSS‐type PRS
Ray tracing
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Summary:In this letter, an array‐based ray tracing model and Fabry–Pérot cavity antenna covered by frequency selective surfaces (FSS) are proposed to realize the flat‐topped radiation pattern (FTRP). Based on the array‐based model, a good FTRP can be obtained by combining the initial directivity of the feed array with the additional directivity of FSS‐type partially reflective surface. By using the proposed method, a low‐cost, lightweight, simple structure and dual‐polarization Fabry‐Pérot cavity antenna with small aperture size for FTRP is designed. From the measured results, the FTRP with more than 58° beamwidth and less than 2 dB ripple level in the frequency band of 2.4 to 2.7 GHz for indoor communication are obtained.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.33427