Ka-Band metalens antenna empowered by physics-assisted particle swarm optimization(PA-PSO)algorithm  

作　　者：Shibin Jiang Wenjun Deng Zhanshan Wang Xinbin Cheng Din Ping Tsai Yuzhi Shi Weiming Zhu 

机构地区：[1]School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610051,China [2]Institute of Precision Optical Engineering,School of Physics Science and Engineering,Tongji University,Shanghai 200092,China [3]Department of Electrical Engineering,City University of Hong Kong,Hong Kong 999077,China.

出　　处：《Opto-Electronic Science》2024年第10期23-33,共11页光电科学（英文）

基　　金：supported by the National Natural Science Foundation of China(61975026,62375232,6237523262205246 and 61875030);Creative Research Groups of the National Natural Science Foundation of Sichuan Province(2023NSFSC1973);the Shanghai Pilot Program for Basic Research,the National Key Research and Development Program of China(No.2023YFF0613600);Science and Technology Commission of Shanghai Municipality(No.22ZR1432400).

摘　　要：Design of multiple-feed lens antennas requires multivariate and multi-objective optimization processes,which can be accelerated by PSO algorithms.However,the PSO algorithm often fails to achieve optimal results with limited computation resources since spaces of candidate solutions are quite large for lens antenna designs.This paper presents a design paradigm for multiple-feed lens antennas based on a physics-assisted particle swarm optimization(PA-PSO)algorithm,which guides the swarm of particles based on laws of physics.As a proof of concept,a design of compact metalens antenna is proposed,which measures unprecedented performances,such as a field of view at±55°,a 21.7 dBi gain with a flatness within 4 dB,a 3-dB bandwidth>12°,and a compact design with a f-number of 0.2.The proposed PA-PSO algorithm reaches the optimal results 6 times faster than the ordinary PSO algorithm,which endows promising applications in the multivariate and multi-objective optimization processes,including but not limited to metalens antenna designs.

关 键 词：multiple-feed lens antennas PA-PSO algorithm metalens metasurfaces Ka-band antenna 

分 类 号：TN821.5[电子电信—信息与通信工程] TP18[自动化与计算机技术—控制理论与控制工程]