Time-Domain Design of UWB Vivaldi Antenna Array Using Multiobjective Particle Swarm Optimization

被引：67
|
作者：
Chamaani, Somayyeh [1 ]
Abrishamian, Mohammad Sadegh [1 ]
Mirtaheri, Seyed Abdullah [1 ]
机构：
[1] KN Toosi Univ Technol, Dept Elect Engn, Tehran 19697, Iran
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2010年 / 9卷
关键词：
Antipodal Vivaldi antenna; array antenna; multiobjective particle swarm optimization (MOPSO); ultrawideband (UWB) antenna;
D O I：
10.1109/LAWP.2010.2053691
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：
A method to obtain optimum tradeoffs (Pareto front) between sidelobe level (SLL) and beamwidth (BW) in time domain for ultrawideband (UWB) antenna arrays is presented. Multiobjective particle swarm optimization (MOPSO) is used to deal with these two conflicting objectives. In the optimization process, mutual coupling effects between elements are not considered. However, the multiple solutions obtained from MOPSO enable the designer to consider the mutual coupling effect as an additional constraint. Each element of the array is an antipodal Vivaldi antenna. The optimization template is applied for three different time-domain pattern descriptors. In comparison to arrays with the same number of elements reported in literature, the Pareto fronts obtained in this study provide lower BW and SLL. A four-element sample from resultant Pareto fronts was simulated by using CST Microwave Studio software. This array shows a 13.7-17.2 dBi gain over the whole frequency band from 3-11 GHz, 7.2 BW, and 12 dB SLL for energy pattern.
引用
收藏
页码：666 / 669
页数：4
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