High Self-Interference Cancellation Antenna for In-Band Full Duplex Communication System

被引：0

作者：

Chaudhary, Girdhari ^{[1
]}

Jeong, Junhyung ^{[1
]}

Pech, Phanam ^{[1
]}

Kim, Phirun ^{[1
]}

Jeong, Yongchae ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Div Elect & Informat Engn, Jeonju, South Korea

来源：

2019 49TH EUROPEAN MICROWAVE CONFERENCE (EUMC) | 2019年

基金：

新加坡国家研究基金会;

关键词：

Branch-line Balun; differential feeding networks; high RF isolation; in-band full duplex; HIGH INTERPORT ISOLATION; POLARIZED PATCH ANTENNA;

D O I：

10.23919/eumc.2019.8910915

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper demonstrates a dual-polarized microstrip patch antenna with high interport isolation for in-band full duplex transceiver. The proposed antenna consists of four port linearly polarized signal radiating elements with differential feedings at input/output ports. The defected ground structure (DGS) under patch has been adopted for enhancement of antenna return loss bandwidth. To achieve high isolation, two identical differential feeding networks using wideband branch-line Balun have been utilized as a self-interference circuit. The analytical design equations have been derived for achieving high isolation in the proposed antenna. For experimental verification, the prototype has been fabricated at the center frequency of 2.5 GHz. The fabricated antenna provides more than 47 dB RF isolation between TX-to-RX port for 100 MHz bandwidth.

引用

页码：236 / 239

页数：4

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