A Novel Microstrip Bandpass Filter Using Lumped Resistor-Loaded Configuration

摘要：

A new bandpass filter (BPF) with a good frequency selectivity using lumped resistor-loaded element is proposed. The filter is composed of a parallel-coupled line shunted with a folded open-ended stub and a coupled line loaded with lumped resistor. The proposed filter has been designed, simulated, optimized for wireless communication system, and the obtained frequency resposes have demonstrated a good filtering properties including -3 dB fractional bandwidth (FBW) of 11.2％ at the central frequency 8.9 GHz, the maximum insertion loss less than 0.8dB and the minimum return loss more than 15dB within the passband frequency range, and two transmission zeros close to the lower passband edge and three transmission zeros close to the upper passband edge. The filter exhibits an excellent band-pass property and a high attenuation characteristics nearby the lower and upper stopband. Thus, a high selectivity of the proposed filter is achieved.

作者: H. Chen Z.-Q. Zhao Y.-X. Zhang Y.-H. Wu Y.-M. Yang

作者单位: School of Electronic Engineering University of Electronic Science and Technology of China Chengdu, 610054, Sichuan, China

会议类型: 国际会议

会议名称: 2010 International Conference on Communications,Circuits and Systems(2010年通信、电路与系统国际会议)

会议地点: 成都

会议语种:英文

页码: 696-698

在线出版日期: 2010-06-28（万方平台首次上网日期，不代表论文的发表时间）