一种快速综合基站天线赋形方向图的迭代方法

doi:10.3969/j.issn.1001-2400.2011.05.023

Abstract

Abstract:

For the requirements of upper sidelobes suppression and lower null-fills of the base-station antennas' shaped beam, a fast iterative method for the synthesis of a pattern with specified levels of upper sidelobes and lower nulls is studied. Brent's method is used to iterate the extrema's positions with the specified levels of sidelobes and nulls of the power pattern's expression, the factorized expression of the pattern can be obtained according to final positions of zeros, and the coefficient of each term is the excitation coefficient with phase information. This method is much more efficient and consumes much less time than optimization methods which are normally used presently. A 10 unit array's pattern is synthesized using an element, and the pattern is confirmed by the result of HFSS simulation. The performances of upper sidelobes suppression and lower null-fills are good, showing that the iterative method presented in this paper is a fast and useful pattern synthesis method for base station antennas.

Key words: base station antennas, shaped beam antennas, sidelobe reduction, null fill, Brent's method

CLC Number:

TN820

DENG Jingya;ZHANG Xiaomiao;YIN Yingzeng;LIU Qizhong. Fast iterative method for the synthesis of the base-station antenna's shaped beam[J].J4, 2011, 38(5): 142-146.

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Fast iterative method for the synthesis of the base-station antenna's shaped beam

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