A high-gain dual-beam folded transmit-reflect-array antenna based on phase-shifting surface-Reference-Cited by-同舟云学术

A high-gain dual-beam folded transmit-reflect-array antenna based on phase-shifting surface

Published:2023-08-25 Issue:11-12 Volume:77 Page:575-584
ISSN:0016-1136
Container-title:Frequenz
language:en
Short-container-title:

Author:

Zhang Min¹,Tang Baiqing²,Li Xin³,Jiang Peng²,Hu Wei²,Jiang Wen²,Gao Steven⁴

Affiliation:

1. No. 36 Research Institute of CETC , Jiaxing , 314033 , China

2. National Key Laboratory of Antennas and Microwave Technology , Xidian University , Xi’an , 710071 , China

3. Xi’an Electronic Engineering Research Institute , Xi’an , 710048 , China

4. The Department of Electronic Engineering , The Chinese University of Hong Kong , Hong Kong , 999077 , China

Abstract

Abstract In this paper, a high-gain dual-beam folded transmit-reflect-array antenna is designed based on the shared aperture method. It consists of the top transmit-reflect-array, the bottom transmitarray, and the feed horn located at the center of the bottom transmitarray. A phase-shifting surface is proposed as the transmission unit cell capable of transmitting incident waves while providing adequate transmission phase shift. The designed transmission unit cell is improved into the transmit-reflect unit cell by adding polarization grids to realize the reflection function. The bottom transmitarray is constructed by transmission unit cells. The top transmit-reflect-array is composed of transmit-reflect unit cells and polarization grids vertical to the unit cell. The x-polarized wave transmits through the top transmit-reflect-array and forms a pencil beam in the forward direction. In addition, the y-polarized wave is reflected by the top transmit-reflect-array and transmits through the bottom transmitarray to form a pencil beam in the backward direction. The tested realized gains of the transmitted beam and reflected beam at 10 GHz are 19.87 dBi with an aperture efficiency of 48.27 % and 23.95 dBi with an aperture efficiency of 30.88 %, respectively. With its low profile and ease of manufacture, it has great prospects for navigation and radar communication.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering

Link

https://www.degruyter.com/document/doi/10.1515/freq-2023-0023/pdf

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