Coplanar-Waveguide Quarter-Wavelength Resonator with Open Stubs for Miniaturizing High-Temperature Superconducting Bandpass Filter

摘要：

This paper presents a newly developed compactcoplanar-waveguide (CPW) quarter-wavelength resonators withopen stubs for use in a miniaturized high-temperaturesuperconducting (HTS) bandpass filter (BPF).The proposedresonator has a structure in which the open stubs are alignedclose to the center conductor of the resonator.This is becausestrongly=coupled resonators have widely-split resonantfrequencies,and the lowest resonant frequency is employed asthe fundamental resonant frequency of the resonator in order toachieve miniaturization.A four-pole Chebyshev HTS BPF isdesigned and fabricated using the proposed CPW resonators toinvestigate the validity of the proposed resonator.The filterachieves a size reduction of at least 50％ compared to previouslyreported filters without any degradation in the frequencycharacteristics.

作者: Kei Satoh Shoichi Narahashi

作者单位: Research Laboratories,NTT DOCOMO,INC.3-5 Hikari-no-oka,Yokosuka,Kanagawa 239-8536 JAPAN

会议类型: 国际会议

会议名称: 2008 China-Japan Joint Microwave Conference(2008年中日微波会议)

会议地点: 上海

会议语种:英文

页码: 359-362

在线出版日期: 2008-09-10（万方平台首次上网日期，不代表论文的发表时间）