A Broadband Transmitarray Antenna Using a Metasurface-Based Element for Millimeter-Wave Applications

Autor: Yue Cao, Miaojuan Zhang, Chong Fan, Jian-Xin Chen
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Micromachines, Vol 15, Iss 3, p 383 (2024)
Druh dokumentu: article
ISSN: 2072-666X
DOI: 10.3390/mi15030383
Popis: In this manuscript, a broadband transmitarray antenna (TA) using a metasurface-based element is presented for millimeter-wave communication applications. The metasurface-based TA element adopts a receiver–transmitter configuration: metasurfaces are applied as the receiver and transmitter, and slot-coupled differentially fed striplines are used as the phase compensation. The designed TA element achieves good transmission performance with a more than 360° transmission phase shift range and less than 1-dB transmission insertion loss within a wide frequency range. To verify the proposed TA, a prototype is fabricated based on the conventional printed circuit board (PCB) process, and a pyramid horn is designed as the source. The measured results show that the proposed TA with the differential feed network presents a 1-dB gain bandwidth of 26.2% from 23.5 to 30.5 GHz and a peak gain of 24.5 dBi. The designed TA is a promising alternative for millimeter-wave communications applications because of its high gain, broad bandwidth, low costs, and convenient integration with other circuits.
Databáze: Directory of Open Access Journals