高隔离圆极化带内全双工各向异性介质谐振器天线。

High isolation circularly polarized in-band full-duplex anisotropic dielectric resonator antenna.

机构信息

Institute for Communication Systems (ICS), Home of 5GIC and 6GIC, University of Surrey, Guildford, GU2 7XH, UK.

Wireless Technology Lab, Huawei Technologies Co., Ltd., No.2222, Xin Jinqiao Road, Shanghai, China.

出版信息

Sci Rep. 2023 Apr 12;13(1):5937. doi: 10.1038/s41598-023-31159-w.

DOI:10.1038/s41598-023-31159-w

PMID:37045877

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10097626/

Abstract

A novel high-isolation, monostatic, circularly polarized (CP) simultaneous transmit and receive (STAR) anisotropic dielectric resonator antenna (DRA) is presented. The Proposed antenna is composed of two identical but orthogonally positioned annular sectoral anisotropic dielectric resonators. Each circularly polarized (CP) resonator consists of alternating stacked dielectric layers of relative permittivities of 2 and 15 and is excited by a coaxial probe from the two opposite ends to have left and right-hand CP. Proper element spacing and a square absorber are placed between the resonators to maximize Tx/Rx isolation. Such a structure provides an in-band full-duplex (IBFD) CP-DRA system. Measurement results exhibit high Tx/Rx isolation better than 50 dB over the desired operating bandwidth (5.87-5.97 GHz) with a peak gain of 5.49 and 5.08 dBic for Ports 1 and 2, respectively.

摘要

提出了一种新颖的高隔离、单基地、圆极化（CP）同时发射和接收（STAR）各向异性介质谐振器天线（DRA）。所提出的天线由两个相同但正交放置的环形扇形各向异性介质谐振器组成。每个圆极化（CP）谐振器由交替堆叠的相对介电常数为 2 和 15 的介电层组成，并通过来自两个相对端的同轴探头激励，以产生左和右手 CP。在谐振器之间放置适当的元件间距和方形吸收体，以最大化 Tx/Rx 隔离。这种结构提供了带内全双工（IBFD）CP-DRA 系统。测量结果显示，在所需的工作带宽（5.87-5.97GHz）内，Tx/Rx 隔离度高于 50dB，端口 1 和 2 的峰值增益分别为 5.49 和 5.08dBic。