DocumentCode :
801762
Title :
A modified Dolph-Chebyshev approach for the synthesis of low sidelobe beampatterns with adjustable beamwidth
Author :
De Abreu, Giuseppe Thadeu Freitas ; Kohno, Ryuji
Author_Institution :
Graduate Sch. of Eng., Yokohama Nat. Univ., Japan
Volume :
51
Issue :
10
fYear :
2003
Firstpage :
3014
Lastpage :
3017
Abstract :
A new method for the synthesis of low sidelobe beampatterns is presented, which enables beamwidth and sidelobe level to be adjusted with relative independence. Unlike existing methods for the synthesis of arbitrary beampatterns, the proposed method is based on a modification of the Dolph-Chebyshev design and requires only a few parameters to be optimized, regardless of the array size. Due to its much lower complexity, the method is implementable in wireless communications applications requiring fast and cheap, adaptive algorithms for low sidelobe arrays. The method is applicable, for instance, to the design of adaptive sector-like antennas with uniform circular arrays (UCAs), and to the design of quasi-steering-invariant beampatterns with uniform linear arrays (ULAs).
Keywords :
adaptive antenna arrays; antenna radiation patterns; beam steering; linear antenna arrays; adaptive sector-like antennas; beamwidth; low sidelobe beam patterns; modified Dolph-Chebyshev approach; quasi-steering-invariant beam patterns; sidelobe arrays; sidelobe level; uniform circular arrays; uniform linear arrays; wireless communications applications; Adaptive algorithm; Adaptive arrays; Adaptive signal processing; Chebyshev approximation; Design methodology; Design optimization; Linear antenna arrays; Polynomials; Signal processing algorithms; Wireless communication;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2003.817989
Filename :
1236128
Link To Document :
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