Improved Microstrip Coupled-Line Bandpass Filters for Spurious Responses Suppression

摘要：

In this paper,microstrip coupled-line bandpass filters using a improved SIR configuration are proposed.Conventional microstrip coupled-line filters are very popular for RF front ends because they can be fabricated easily.However,their large harmonic causes the shape of the passband to be asymmetric in the upper band and it worsens the skirt properties.By proper design,the harmonic of improved filters can be significantly suppressed through the use of improved SIR configurations.There are more than 20dB suppression at 2f0 and 3 f0.This type of filter can be used to suppress the harmonic without any additional devices and regardless of the substrate.

作者: Zhou Tie Qu Dexin Zheng Chuanjia Qiu Xiaojun

作者单位: Institute of Communication Engineering,PLA Univ,of Sci.&Tech Biaoying;Yudao street,Baixia District,N Institute of Communication Engineering,PLA Univ,of Sci.&TechBiaoying;Yudao street,Baixia District,Na

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）