Compact Mixed-cross Coupled Bandpass Filter with Improved Frequency Selectivity

摘要：

　　A compact Cascade Trisection (CT) bandpass filter (BPF) with improved frequency selectivity using mixed cross-coupling is proposed.The proposed filter consists of three stepped impedance resonators (SIRs),which the non-adjacent resonators provide the mixed cross-coupling.Three controllable transmission zeros (TZs) can be generated near the passband to enhance the skirt selectivity of the filter.To verify the proposed methods,a new BPF centered at 2.5 GHz was designed,fabricated and measured.Measured results are in good agreement with the analysis,and the circuit only occupies 6.70×7.90mm2.

关键词： Bandpass filter transmission zero mixed cross-coupling stepped impedance resonator (SIR)

作者: WEI Xubo YUE Guotao

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: 362-365

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）