Continuous Beam-Steering Low-Loss Millimeter-Wave Antenna Based on a Piezo-Electrically Actuated Metasurface
Continuous Beam-Steering Low-Loss Millimeter-Wave Antenna Based on a Piezo-Electrically Actuated Metasurface
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DOI：
10.1109/tap.2021.3137248
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发表时间：
2022-04-01
影响因子：
5.7
通讯作者：
Feresidis, Alexandros P.
中科院分区：
文献类型：
--
作者：
Rabbani, Muhammad Saqib;Churm, James;Feresidis, Alexandros P.
针对新兴的毫米波（mm-wave）、5G等宽带移动技术，提出了一种新的天线波束导向技术。设计了一种具有30度波束转向的高增益（23 dBi）天线，并在38ghz频段附近进行了测试。采用法布里-珀罗型漏波天线（LWA）作为主辐射结构，以可调谐高阻抗面（HIS）作为接地面。利用柔性放大压电致动器（PEA）通过机电方式改变HIS周期超表面层与地平面之间的位移来实现HIS相位调谐。天线的损耗极低(
A novel antenna beam-steering technology is proposed for emerging millimeter-wave (mm-wave), broadband mobile technologies such as 5G and beyond. A high-gain (23 dBi) antenna with 30 degrees beam steering is designed and tested at around the 38 GHz band. A Fabry-Perot type leaky-wave antenna (LWA) is employed as the main radiating structure, with a tunable high-impedance surface (HIS) used as the ground plane. The HIS phase tuning is accomplished by electro-mechanically varying the displacement between the HIS periodic metasurface layer and the ground plane using a flexure amplified piezoelectric actuator (PEA). The antenna exhibits very low loss (