Optimization Design of UWB Passive Bandpass Filters Standing Wave Ratio

摘要：

The filters voltage standing-wave ratio (VSWR) cannot be designed by network synthesis method, so the optimal design method of a filters VSWR with termination capacitance is proposed in this paper. Based on the circuit designed by network synthesis method, parallel inductance was transformed to series inductance and parallel capacitances in the input and output ports of the circuit. Then optimize the circuit by unconstrained optimization method so that the filters amplitude-frequency can be arithmetic symmetrical and VSWR is close to 1. The simulation result indicates that the optimal method can make not only the filter amplitude-frequency arithmetic symmetrical, but also the max value of VSWR just 1.0399, the max value of group delay ripple is 2.1374ns and the max passband ripple is 0.001626dB, furthermore relative bandwidth exceeds 83%.

关键词： filter VSWR UWB optimization design.

作者: Peng Li Hongmei Ma

作者单位: Department of Electronic Information,North China Institute of Science and Technology Yanjiao East of Beijing 101601,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3487-3490

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）