Hybrid design approach of optical phased array with wide beam steering range and low side-lobe level

被引：4
|
作者：
Dong, Tao [1 ]
He, Jingwen [1 ]
He, Xinyu [1 ]
Xu, Yue [1 ]
Zhou, Jianming [2 ]
机构：
[1] Beijing Inst Satellite Informat Engn, State Key Lab Space Ground Integrated Informat Te, Beijing 100095, Peoples R China
[2] Beijing Inst Technol, Sch Integrated Circuits & Elect, Beijing 100081, Peoples R China
来源：
OPTICS LETTERS | 2022年 / 47卷 / 04期
基金：
中国国家自然科学基金;
关键词：
10;
D O I：
10.1364/OL.449369
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, an optical phased array (OPA) with wide beam steering angle and low side-lobe level is designed based on the hybrid approach of particle swarm optimization (PSO) and convex optimization (CVX). The optimization process is divided into two steps. First, the antenna spacing distribution of the OPA is designed to obtain a wide beam steering range by using a PSO algorithm. Second, based on the antenna spacing distribution obtained in the previous step, the CVX algorithm is used to obtain the excitation amplitude and phase distribution of the OPA under different beam steering angles. By using this approach, we design an OPA with 1024 antennas. The beam steering range of the OPA is +/- 60 degrees and the side-lobe level is reduced to -24.65 dB. (C) 2022 Optica Publishing Group
引用
收藏
页码：806 / 809
页数：4
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