Design of Planar Tri-Band Bandpass Filter

摘要：

This paper presents a high-selectivity planar triband bandpass filter. The proposed filter utilizes two different kinds of resonators, Le., stub-loaded resonators and half-wavelength resonators. The stubloaded resonator is used to generate the first and third passbands and the half-wavelength resonator yields the second passband. One set of resonators is inside the other and thus the overall circuit is compact in size. Using this configuration, the passband can be conveniently tuned to desired frequencies by controlling the corresponding resonator dimensions. On each side of each passband, there is at least one transmission zero, resulting in high skirt selectivity. For demonstration, a prototype filter is designed, fabricatd and measured. The comparison of simulated and measured results is presented.

作者: Xiu Yin Zhang Bin-Jie Hu Quan Xue

作者单位: School of Electronic and Information Engineering, South China University of Technology 381＃ Wushan R State Key Laboratory of Millimeter Waves, Department of Electronic Engineering, City University of H

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: 74-76

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）