Side Lobe Reduction and Interference Rejection in Concentric Hexagonal Antenna Array using Differential Evolutionary Algorithm

被引：1
作者：
Akhitha, K. [1 ]
Ram, G. [1 ]
机构：
[1] Natl Inst Technol Warangal, Dept Elect & Commun Engn, Warangal, India
来源：
2022 IEEE MICROWAVES, ANTENNAS, AND PROPAGATION CONFERENCE, MAPCON | 2022年
关键词：
Concentric hexagonal antenna array; Side lobe level reduction; interference rejection; differential evolutionary algorithm; null placement; OPTIMIZATION; DESIGN; PATTERN; LEVEL;
D O I：
10.1109/MAPCON56011.2022.10047092
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：
Side lobes and interference signals result in decreased performance of antenna array. In this paper a method to reduce the side lobe levels (SLL) and for rejecting the interference signals in Concentric Hexagonal Antenna Array (CHAA) using differential evolutionary (DE) algorithm is presented. CHAA will give lower SLL compared to circular and linear antenna arrays and are hence preferred in the presented method. DE algorithm is an evolutionary algorithm in which mutations are performed by combination of individuals and an optimized solution is obtained. The simulation results are presented for a single ring CHAA, 4 ring CHAA with 2 different interference signal scenarios and a 6 ring CHAA with 2 different interference signal scenarios. From the results it can be inferred that there is a 6 dB SLL reduction in single ring CHAA and at least 8 dB and 9 dB SLL reduction in 4 and 6 ring CHAA. Also, nulls with a minimum of -60dB have been placed in 4 different interference signal scenarios.
引用
收藏
页码：681 / 685
页数：5
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