A Compact Circular Bandpass Filter With Mixed Electric and Magnetic coupling

摘要：

　　This paper presents a compact circular filter with mixed electric and magnetic coupling.The proposed bandpass filter (BPF) contains only two resonators,which has two separate coupling paths:electric coupling path and magnetic coupling path.The electric coupling is realized by coupled double step impedance resonators (CDSIRs),while the grounded via-hole offers the magnetic coupling.A transmission zero close to the passband is introduced due to the mixed coupling between two resonators.The location of this zero point can be adjusted freely by changing the strength of electric coupling or magnetic coupling.This filter occupies only 0.1λg×0.1λg,where the λg is the guide wavelength at the center frequency of the passband.Simulated results have been derived by Ansoft HFSS to verify the validity of the method.

关键词： circular bandpass filter (BPF) mixed coupling coupled double step impedance resonators(CDSIRs) transmission zero

作者: YUAN Shuanglin WEI Xubo YUE Guotao GUO Hongzhan

作者单位: Research Institute of Electronic Science and Technology,University of Electronic Science and Technology of China,Chengdu,611731

会议类型: 国内会议

会议名称: 综合电子系统技术教育部重点实验室暨四川省高密度集成器件工程技术研究中心2012学术年会

会议地点: 成都

会议语种:英文

页码: 369-373

在线出版日期: 2012-12-22（万方平台首次上网日期，不代表论文的发表时间）