摘要
对一种结构紧凑型的三频带带通滤波器进行研究,滤波器采用微带结构,使两个开路环谐振单元相耦合,通过改变加载短路线的宽度和开路环的长度,实现了频率的双调谐;对所设计的电路进行了测试,验证了设计方法的有效性。
To obtain a good performance of bandpass filter,a more compact tri-band bandpass filter is discussed in this paper.The filter is on the microstrip structure,which consists of two open loop resonators,one coupling with another.The double-tuning has been realized by adjusting the width of loaded short circuit line and the length of the open loop.A fabricated sample has been tested and the results have been verified.
出处
《天津职业技术师范大学学报》
2012年第1期15-17,共3页
Journal of Tianjin University of Technology and Education
基金
国家自然科学基金资助项目(60871026)
天津职业技术师范大学科研发展基金项目(KJ09-002)
关键词
带通滤波器
三频带
传输零点
bandpass filter
tri-band
transmission zeros
