A New Cavity Filter with Two-layer Coaxial Cavity Cross-coupling

Xie Zhen-xiong; Lin Fu-min; Zhao Pei-wei

doi:10.3969/j.issn.10077162.2015.01.012

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A New Cavity Filter with Two-layer Coaxial Cavity Cross-coupling

更新时间：2026-05-27

- A New Cavity Filter with Two-layer Coaxial Cavity Cross-coupling
- Vol. 32, Issue 1, Pages: 55-60(2015)
- 作者机构：
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- DOI：10.3969/j.issn.10077162.2015.01.012
  CLC：
- Online First：05 March 2015，
  
  Published：2015
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谢振雄, 林福民, 赵培伟. 双层同轴腔交叉耦合的新型腔体滤波器[J]. 广东工业大学学报, 2015, 32(1): 55-60.

Xie Zhen-xiong, Lin Fu-min, Zhao Pei-wei. A New Cavity Filter with Two-layer Coaxial Cavity Cross-coupling[J]. 2015, 32(1): 55-60.
谢振雄, 林福民, 赵培伟. 双层同轴腔交叉耦合的新型腔体滤波器[J]. 广东工业大学学报, 2015, 32(1): 55-60. DOI： 10.3969/j.issn.10077162.2015.01.012.

Xie Zhen-xiong, Lin Fu-min, Zhao Pei-wei. A New Cavity Filter with Two-layer Coaxial Cavity Cross-coupling[J]. 2015, 32(1): 55-60. DOI： 10.3969/j.issn.10077162.2015.01.012.

摘要

在耦合双间隙腔的基础上，提出了一种双层新型交叉耦合结构的腔体滤波器，利用couple-filter软件分析得出理论的耦合系数，通过在三维仿真软件HFSS建模、仿真和优化，实现了双层同轴腔体带通滤波器的整体设计.仿真结果显示，采用双层4腔的新型多腔滤波器的带宽、带外抑制和插入损耗等主要参数完全可以达到单层4腔滤波器的技术性能.该类新型腔体滤波器具有频带宽、带外抑制好、结构紧凑和形状多样化等多方面优点，将能更好地满足雷达或移动通信基站等各类微波通信系统的要求.

Abstract

On the basis of coupling double-gap cavities

a new multi-cavity filter with two-layer coaxial cavity cross-coupling is proposed in this paper. It utilizes the coupling coefficient analyzed by couplefilter software and the 3D simulation software HFSS procedures of modeling

simulation and optimization to realize the integral design of the two-layer coaxial cavity bandpass filter. Simulation results show that the performance of band width

out-band suppression and insertion loss of a two-layer filter with 4 cavities have the advantages of that of a single layer filter with 4 cavities. Such new filters with merits of wide frequency band width

satisfactory out-band suppression

compact structure and various shapes would better meet the requirements of microwave communication systems such as radar or mobile communication station.

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