Pattern Synthesis with Specified Broad Nulls in Time-Modulated Circular Antenna Arrays

被引：8
|
作者：
Zheng, Li [1 ]
Yang, Shiwen [1 ]
Nie, Zaiping [1 ]
机构：
[1] Univ Elect Sci & Technol China, Dept Microwave Engn, Sch Elect Engn, Chengdu 610054, Peoples R China
来源：
ELECTROMAGNETICS | 2011年 / 31卷 / 05期
关键词：
circular arrays; wide nulls; time modulation; differential evolution; LINEAR ARRAYS; RADIATION; OPTIMIZATION;
D O I：
10.1080/02726343.2011.579770
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This article presents an approach for the synthesis of time-modulated circular array patterns with specified null width constraints. The time-modulated circular antenna arrays with uniform amplitude excitations are designed through the differential evolution algorithm with their excitation phases, and the switch-on time intervals of each element of the time-modulated circular arrays are the variables to be optimized. Several examples synthesized from the time-modulated circular array with the prescribed null width and depth are compared with some published results of the conventional circular array. Simulation results illustrate the achievable performance of the approach in successfully synthesizing patterns with desirable broad nulls, even if the amplitude excitations are uniform.
引用
收藏
页码：355 / 367
页数：13
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