Synthesis of Low and Equal-Ripple Sidelobe Patterns in Time-Modulated Circular Antenna Arrays

被引：0
|
作者：
Ming Huang
Shiwen Yang
Gang Li
Zaiping Nie
机构：
[1] University of Electronic Science and Technology of China (UESTC),Department of Microwave Engineering, School of Electronic Engineering
来源：
Journal of Infrared, Millimeter, and Terahertz Waves | 2009年 / 30卷
关键词：
Circular arrays; Time modulation; Differential evolution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, the time modulation technique is applied into circular antenna arrays with uniform amplitude excitations for the synthesis of ultra-low sidelobe and equal-ripple radiation patterns. The differential evolution (DE) algorithm is adopted to optimize the excitation phases and the switch-on time intervals of each element of the time-modulated circular array (TMCA). Several low-sidelobe patterns synthesized from TMCAs were compared to those of the conventional circular arrays. Numerical results show that the TMCA can be successfully used for the synthesis of low SLLs even if the amplitude excitations are uniform.
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页码：802 / 812
页数：10
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