학술논문
A novel low-profile wideband dual-polarized metasurface antenna with high isolation
Document Type
Conference
Source
2023 16th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT) Millimetre Waves and Terahertz Technologies (UCMMT), 2023 16th UK-Europe-China Workshop on. 1:1-3 Aug, 2023
Subject
Language
ISSN
2639-4537
Abstract
In this work, a novel low-profile wideband dualpolarized metasurface (MS) antenna with high isolation is proposed for C-band applications. To achieve dual polarizations, the MS is not only used as a radiator but also as a ground plane. In detail, for vertical polarization (VP), the MS is a radiator fed by a slot-coupled microstrip line, and for horizontal polarization (HP), the MS is a ground plane of a differential-coaxial patch radiator. The overall size of the proposed antenna is 1.1λ 0 ×1.1λ 0 ×0.079λ 0 (λ 0 is the free-space wavelength at 5.5 GHz). The simulated results show that the -10dB impedance bandwidths of the HP and VP are 28.4% (4.84~6.44GHz) and 38.7% (4.83~7.15GHz), respectively. Besides, the isolation between the two ports is higher than 51dB, and the maximum realized gain is 9.6dBi and 9.1dBi.