Box-section bandpass filter with improved frequency selectivity Using Stepped Impedance Resonators

摘要：

　　A compact box-section wide-band bandpass filter with improved frequency selectivity is presented.The proposed BPF consists of four stepped impedance resonators (SIRs),which shared a common grounded via-hole.Mixed electric and magnetic (EM) coupling is introduced in the proposed filter to generate transmission zeros (TZs) near the passband for sharp frequency selectivity.By adjusting the strength of the mixed EM coupling,the location of TZs can be controlled.A new filter with 31.4% fractional bandwidth (FBW) has been designed and fabricated to verify the validity of the proposed method.Measured results are in good agreement with the electromagnetic simulation.

关键词： box-section transmission zeros bandpass filter mixed coupling

作者: YUAN Shuanglin WEI Xubo FU Bo YUE Guotao PANG Linna

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: 374-378

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）