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一种使用开路并联线的改进型螺旋微带谐振单元

Keywords: 微带并联开路线螺旋微带谐振单元慢波禁带

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Abstract:

提出了一种改进型螺旋微带谐振单元(sCMRc)的结构.该改进型螺旋微带谐振单元具有微带并联开路线,在低频通带内通过设计达到50Ω的端口阻抗.同时,并联的微带开路线在SCMRC结构的禁带中谐振,来实现更强的慢波效应和更宽的禁带.实际设计、制作和测试了该改进型螺旋微带谐振单元,该滤波器在低频通带内具有低插入损耗、改善的回波损耗,以及在较小面积下的宽禁带.

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