太赫兹科学与电子信息学报2025，Vol.23Issue(11)：1157-1164,8.DOI:10.11805/TKYDA2024348
射频微波差分器件及天线的关键技术
Key technology research of RF microwave balanced components and antennas
摘要
Abstract
The dense deployment of modern wireless communication networks has led to an increasingly complex electromagnetic environment,and differential circuits demonstrate stronger immunity to interference than single-ended ones.This paper investigates key technologies for differential multifunctional filters,detailing the design of four devices.Firstly,a differential filtering antenna array centered at 2.5 GHz is presented;transmission zeros are introduced to enhance passband selectivity,and the maximum differential-mode gain in the main radiation direction reaches 13.7 dBi.Secondly,a differential-to-differential dual-band filtering power divider is described,whose two passbands are centered at 2.41 GHz and 3.52 GHz,respectively;it provides four transmission zeros and achieves isolation better than 16 dB and 20 dB within the two passbands.Finally,two designs of differential reflectionless filters are introduced,centered at 4.08 GHz and 3.09 GHz,both realizing two-port reflectionless characteristics under differential-mode operation.All four devices exhibit excellent common-mode suppression.关键词
差分器件/差分滤波器/滤波天线/滤波功分/无反射滤波器Key words
balanced components/balanced filters/filtering antennas/filtering power dividers/reflectionless filters分类
信息技术与安全科学引用本文复制引用
魏峰,刘鸿宇,史小卫,赵西贝..射频微波差分器件及天线的关键技术[J].太赫兹科学与电子信息学报,2025,23(11):1157-1164,8.基金项目
国家自然科学基金资助项目(62271386) （62271386）
