SIR 交叉耦合双通带腔体滤波器

doi:10.3969/j.issn.0255-8297.2014.02.015

应用科学学报 ›› 2014, Vol. 32 ›› Issue (2): 215-220.doi: 10.3969/j.issn.0255-8297.2014.02.015

• 电子技术 • 上一篇

SIR 交叉耦合双通带腔体滤波器

寇鑫，肖中银，黄春艳，李好，储君君

上海大学通信与信息工程学院，上海200072

收稿日期:2011-12-21 修回日期:2013-03-25 出版日期:2014-03-25 发布日期:2013-03-25
作者简介:肖中银，教授，博导，研究方向：微波与毫米波电路等，E-mail: zhyxiao@staff.shu.edu.cn
基金资助:
国家自然科学基金(No.61077068, No.61275070)资助

SIR Cross-Coupling Dual-Band Cavity Filter

KOU Xin, XIAO Zhong-yin, HUANG Chun-yan, LI Hao, CHU Jun-jun

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2011-12-21 Revised:2013-03-25 Online:2014-03-25 Published:2013-03-25

摘要/Abstract

摘要： 根据频率变换，以阶跃阻抗谐振器作为腔体滤波器的基本谐振单元设计了一种带有交叉耦合的双通带腔体滤波器. 根据设计指标，用频率变换方法得到双通带腔体滤波器的设计参数，利用三维仿真软件HFSS 对双通带滤波器进行建模并仿真. 仿真结果与ADS 中原理电路得到的理论结果基本吻合，证明了该方法的可行性. 仿真
结果还表明，不仅滤波器的实际尺寸明显减小，而且由于引入了交叉耦合，滤波器的带外抑制能力得以提高，满足了滤波器体积小以及带外选择性好的设计要求.

关键词: 腔体滤波器, 阶跃阻抗谐振器, 双通带, 频率变换, 交叉耦合

Abstract: Using stepped impedance resonators (SIR) as a basic resonator unit of cavity filter, a cross-coupling dual-band cavity filter is designed based on frequency transformation. According to the filter specifications,the design parameters of dual-band filter are calculated using frequency transformation. A model of SIR
cross-coupling dual-band cavity filter is then established and simulated by the 3D simulation software HFSS.Simulation results show good agreement with the result of schematic circuit in ADS, indicating that the method is valid and feasible. The simulation shows that the filter size is significantly reduced, while the restrain ability of stop-band is enhanced due to cross coupling. Thus the requirements of small size and good stop-band performance of the filter are met.

Key words: cavity filter, stepped impedance resonators (SIR), dual-band, frequency transformation, crosscoupling

中图分类号:

TN713

寇鑫，肖中银，黄春艳，李好，储君君. SIR 交叉耦合双通带腔体滤波器[J]. 应用科学学报, 2014, 32(2): 215-220.

KOU Xin, XIAO Zhong-yin, HUANG Chun-yan, LI Hao, CHU Jun-jun. SIR Cross-Coupling Dual-Band Cavity Filter[J]. Journal of Applied Sciences, 2014, 32(2): 215-220.

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SIR 交叉耦合双通带腔体滤波器

SIR Cross-Coupling Dual-Band Cavity Filter

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