A Simultaneously Transmit and Receive Antenna Terminal for In-Band Full-Duplex Applications

IF 0.9 4区工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS International Journal of RF and Microwave Computer-Aided Engineering Pub Date : 2024-03-25 DOI:10.1155/2024/6618418

Meenal, Amalendu Patnaik

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Abstract

In this paper, a low-profile co-linearly polarized simultaneously transmit-receive antenna (STRA) terminal is presented for 5G and upcoming technologies. The proposed STRA terminal comprises of an identical pair of spatially rotated half-circular microstrip antennas for transmission (Tx) and reception (Rx). The challenge of self-interference (SI) is addressed by employing passive SI cancellation techniques such as spatial diversity, field confinement, and surface perturbations. This has been accomplished by using fence-strip structure and V-shaped slots in the ground plane. The STRA was designed, fabricated, and tested for full-duplex operation in a sub-6 GHz band lying from 5.73 to 5.88 GHz, providing high interport isolation ranging from 35.5 dB to a maximum of 46.5 dB. The proposed STRA was implemented using Rogers 3003™ substrate. The measurements yield radiation characteristics with high gain of 5.45-6.0 dBi and 5-6.5 dBi for Tx and Rx antennas, respectively. The measured results are in good conformance with the simulated design. This antenna finds its potential usage in V2X and private 5G networks and can be extended for full-duplex MIMO implementations.

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用于带内全双工应用的同时发射和接收天线终端

本文针对 5G 和即将到来的技术提出了一种低调的共线极化同时发射接收天线（STRA）终端。拟议的 STRA 终端由一对相同的空间旋转半圆微带天线组成，分别用于发射（Tx）和接收（Rx）。通过采用空间分集、场限制和表面扰动等被动自干扰（SI）消除技术，解决了自干扰（SI）的难题。通过在地平面上使用栅栏条结构和 V 形槽，实现了这一目标。设计、制造和测试的 STRA 可在 5.73 至 5.88 GHz 的 6 GHz 以下频段全双工运行，提供 35.5 dB 至最大 46.5 dB 的高端口间隔离度。使用罗杰斯 3003™ 衬底实现了拟议的 STRA。测量结果表明，Tx 和 Rx 天线的高增益辐射特性分别为 5.45-6.0 dBi 和 5-6.5 dBi。测量结果与模拟设计完全一致。这种天线可用于 V2X 和专用 5G 网络，并可扩展用于全双工 MIMO 实现。

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来源期刊

International Journal of RF and Microwave Computer-Aided Engineering 工程技术-工程：电子与电气

CiteScore

4.00

自引率

23.50%

发文量

489

审稿时长

3 months

期刊介绍： International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology. Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . . -Computer-Aided Modeling -Computer-Aided Analysis -Computer-Aided Optimization -Software and Manufacturing Techniques -Computer-Aided Measurements -Measurements Interfaced with CAD Systems In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.