电子学报 ›› 2018, Vol. 46 ›› Issue (4): 952-960.DOI: 10.3969/j.issn.0372-2112.2018.04.025

所属专题: 微波器件

• 学术论文 • 上一篇    下一篇

双/三模基片集成波导和共面波导混合结构滤波器设计

刘庆, 周东方, 张德伟, 王树兴, 吕大龙, 张毅   

  1. 解放军信息工程大学信息系统工程学院, 河南郑州 450001
  • 收稿日期:2016-11-30 修回日期:2017-05-15 出版日期:2018-04-25
    • 通讯作者:
    • 刘庆
    • 作者简介:
    • 周东方 男,1963年8月出生,浙江诸暨人.博导、教授,国家高科技863专题专家组成员,主要研究方向为微波电路理论与技术、高功率微波技术、微波互联网络子结构分析方法及其应用技术等

Design of Filters Using the Hybrid Structure of Dual/Triple-Mode Substrate Integrated Waveguide and Ground Coplanar Waveguides

LIU Qing, ZHOU Dong-fang, ZHANG De-wei, WANG Shu-xing, LÜ Da-long, ZHANG Yi   

  1. Institute of Information System Engineering, PLA Information Engineering University, Zhengzhou, Henan 450001, China
  • Received:2016-11-30 Revised:2017-05-15 Online:2018-04-25 Published:2018-04-25
    • Corresponding author:
    • LIU Qing

摘要: 针对微波带通滤波器小型化、高性能的应用需求,提出使用双/三模方形基片集成波导和共面波导混合结构设计带通滤波器.通过改变双模基片集成波导中TE102和TE201的谐振频率和外部耦合的强弱,可实现具有近似椭圆、非对称和无传输零点响应的双模滤波器;两个相同尺寸的共面波导作为谐振器蚀刻在基片集成波导表面,与TE102和TE201共同形成一个通带,设计具有多样性响应的四阶滤波器.在具有非对称响应四阶滤波器的基础上,使主模TE101频率移动到该通带附近,设计更宽带宽的五阶滤波器.并对设计的滤波器进行加工和测试.测试结果与仿真结果吻合,表明了该混合结构设计高性能滤波器方法的可行性.

关键词: 带通滤波器, 基片集成波导, 共面波导, 近似椭圆响应, 非对称响应, 双模, 三模

Abstract:

A class of planar bandpass filters (BPFs) using dual/triple-mode substrate integrated waveguide (SIW) resonator and ground coplanar waveguides (GCPWs) are proposed according to miniaturization and high selectivity. The quasi-elliptic, asymmetric and non-transmission zero (TZ) response dual-mode SIW filters can be realized by changing resonance frequencies of TE102 and TE201, and the external couplings. Two GCPWs of the same size are etched on SIW cavity top metal plane;and the TE102, TE201 and two GCPWs in a single SIW cavity are combined to construct the diversified response fourth-order filters. On the basis of asymmetric and non-TZ response, the fundamental mode TE101 can be shifted to the passband to form a fifth-order filter with wider bandwidth. The designed BPFs were fabricated and measured;and the simulated and measured results agree with each other, demonstrating the feasibility of using hybrid dual/triple-mode SIW and CPWs in a single cavity to design BPFs.

Key words: bandpass filter (BPF), substrate integrated waveguide (SIW), ground coplanar waveguide (GCPW), quasi-elliptic response, asymmetric response, dual-mode, triple-mode

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