A Broadband 1-bit Frequency-Scanning Reflectarray for Near-Field Sensing Application

Wu，Jinyu; Zhang，Qingfeng; Liu，Baiyang

10.1109/IMWS-AMP54652.2022.10106864

2022

2766-9564

978-1-6654-7835-9

IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IMWS-AMP 2022 - Proceedings

1-3

27-29 Nov. 2022

Guangzhou, China

To achieve wide-angle frequency scanning, a broadband 1-bit millimeter-wave reflectarray with 30×30 unit cells is proposed. Here we design a meta-atom in two states with a phase difference of 180°±30° from 16 to 29 GHz to realize a 1-bit coding reflectarray. The 1-bit phase distribution is arrayed based on generalized Snell's law under oblique incidence. The simulation results show the proposed reflectarray has the scanning range from 0° to 36° in the operating frequency band (16-29 GHz), indicating that the proposed reflectarray has the ability of wide-angle frequency scanning. Compared to existing frequency-scanning arrays, the proposed reflectarray has the advantages in scanning range and maximum gain. Therefore, the proposed reflectarray may have potential application in near-field sensing systems.

Frequency-scanning Near-field sensing Reflectarray

第一 ; 通讯

英语

2-s2.0-85159150094

Scopus

Southern University of Science and Technology,Shenzhen,China

Wu，Jinyu,Zhang，Qingfeng,Liu，Baiyang. A Broadband 1-bit Frequency-Scanning Reflectarray for Near-Field Sensing Application[C],2022:1-3.