电子元件与材料2017，Vol.36Issue(1)：38-43,6.DOI:10.14106/j.cnki.1001-2028.2017.01.007
具有平坦群时延特性的小型高温超导滤波器设计
Design of miniaturized high temperature superconducting filter with flat group delay
摘要
Abstract
In order to designminiaturized linear phasehigh temperature superconducting(HTS)filter, anew kind of open loop fractal resonatorswas introduced, the coupling of whichwas small and attenuates fast.Such characteristics can reduce the size of the filterandthe unnecessary parasitic coupling. Furthermore,usinga method of filter design, which generates transmission zeros by sharing the resonators of neighboring cascaded quadruplet(CQ) unitsto reduce the size of the filter. At last, a10-pole high temperature superconducting filter having threepairs of transmission zeroswas designed on an MgO substrate.The group delay variationisless than 1 ns over60% of the filter’s bandwidthand the size of the layout is only20mm×10mm, whichhasreached the purpose of phaseequalizationandminiaturization.The side band steepness reaches 2 MHz/dB,the suppression out of band is up to 40 dB,the return loss reaches 23.92 dBand the insertion loss is lower than 0.1 dB.关键词
开环分形谐振器/平坦群时延/小型化/共用谐振器/高温超导滤波器/设计Key words
open loop fractal resonators/flat group delay/miniaturization/sharing the resonators/HTSfilter/design分类
信息技术与安全科学引用本文复制引用
肖玉花,陈海华,何明,陈国强,吴萌..具有平坦群时延特性的小型高温超导滤波器设计[J].电子元件与材料,2017,36(1):38-43,6.基金项目
国家自然科学基金资助项目 （）
