光学
天线(收音机)
辐射模式
梁(结构)
PIN二极管
带宽(计算)
二极管
光电子学
辐射
物理
光束转向
可重构天线
材料科学
电气工程
天线效率
计算机科学
电信
工程类
作者
Aqeel Hussain Naqvi,Sungjoon Lim
标识
DOI:10.1080/17455030.2023.2166153
摘要
This article proposes a low-profile real-time electronic beam-scanning metasurface antenna (EBSMA) with hybrid (active and passive) meta-cells in the Ka-band. The EBSMA includes a radiating source, single-layered metasurface with dedicated microcontroller unit, and a power source. The proposed metasurface comprises 4 active subarrays and 11 passive meta-cells, where each subarray comprises 2 × 3 active meta-cells. The metasurface was using a source patch antenna. The EBSMA was realized by integrating one PIN-diode onto each slotted square-ring element in each subarray. Two-dimensional beam scanning was realized by controlling PIN-diode states in real-time for each active subarray using microcontroller hardware. The proposed EBSMA configuration produced a boresight beam at θ = 0° or ±10° tilted beam in the φ = 0° and 90° planes. The antenna achieved 14.18% 3 dB fractional impedance bandwidth with measured realized gains ≈ 10.7 dBi for all states. We fabricated an EBSMA device as proof-of-concept and measured its far-field radiation patterns. Two-dimensional beam-scanning for the proposed metasurface antenna was verified numerically and experimentally.
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