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Wireless Personal Communications

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01-08-2013

Simplified Sidelobe Reduction Techniques for Concentric Ring Arrays

Authors: Mostafa Nofal, Sultan Aljahdali, Yasser Albagory

Published in: Wireless Personal Communications | Issue 4/2013

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Abstract

In this paper, a simplified sidelobe reduction technique for uniform concentric circular antenna arrays (UCCA) is proposed. This technique is based on modifying some conventional windows to control the amplitude feeding instead of using adaptive techniques which require excessive processing and calculations and suffer from the lack of practical application especially for UCCA. The modified windows are applied to individual rings of the array that will taper the corresponding current amplitudes. The resulted sidelobe level, beamwidth and stability for amplitude errors are discussed for the different proposed windows where it shows a sidelobe reduction to about 49 dB as in the case of Binomial UCCA while the Hamming window shows the most immunity to tapered amplitude errors.

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Title: Simplified Sidelobe Reduction Techniques for Concentric Ring Arrays
Authors: Mostafa Nofal
Sultan Aljahdali
Yasser Albagory
Publication date: 01-08-2013
Publisher: Springer US
Published in: Wireless Personal Communications / Issue 4/2013
Print ISSN: 0929-6212
Electronic ISSN: 1572-834X
DOI: https://doi.org/10.1007/s11277-012-0984-9

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