A Compact Microstrip Wideband Bandpass Filter with Excellent Out-band Performance

摘要：

A compact microstrip wideband bandpass filter (BPF) using Stepper-Impedance Resonator with wide stopband is presented. In addition, a input-output crosscoupling was introduced which generated a pairs of attenuation poles at each side of the passband. A wideband microstrip BPF has been designed, fabricated, and measured. The measured filter has a 3 dB fractional bandwidth of 50％ with a minimum passband IL of 0.52 dB at 3.71GHz and a maximum group delay variation of 0.48 ns, respectively. The filter has the advantages of extremely sharp rejection skirts, wide bandwidth, low passband insertion loss (IL), low group delay variation and ease of fabrication.

作者: Yan-liang WU Cheng LIAO Xiang-zheng XIONG Yan-min DUAN Qun Yang Xiao-yong XIA

作者单位: Institute of Electromagnetics, Southwest Jiaotong University, Chengdu 610031, China

会议类型: 国际会议

会议名称: 2010 International Conference on Microwave and Millimeter Wave Technology(2010国际微波与毫米波技术会议 ICMMT2010)

会议地点: 成都

会议语种:英文

页码: 759-760

在线出版日期: 2010-05-08（万方平台首次上网日期，不代表论文的发表时间）