Ka波段基片集成波导窄带带通滤波器设计

葛俊祥; 李浩; 杨现志; 汪洁

doi:10.11999/JEIT160647

Ka波段基片集成波导窄带带通滤波器设计

doi: 10.11999/JEIT160647

基金项目:

国家自然科学基金(61372066)，江苏省双创团队人才计划

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- 被引次数: 0
出版历程
- 收稿日期: 2016-06-16
- 修回日期: 2016-12-08
- 刊出日期: 2017-05-19

Design of a Ka-band Filter with Narrow Pass Band Based on Substrate Integrated Waveguide

Funds:

The National Natural Science Foundation of China (61372066), Jiangsu Innovation Entrepreneurship Group Talents Plan

摘要

摘要: 该文针对传统滤波器在Ka波段难以同时实现窄带与集成的问题，采用基片集成波导结构(SIW)设计了一款Ka波段平面窄带带通滤波器。该滤波器采用双模圆腔与椭圆腔级联的结构，在上下边带分别产生一个传输零点，具有频率高选择特性。测试结果表明，该滤波器中心频率35 GHz，相对带宽2.85%，插入损耗约为3.4 dB，带内回波损耗大于15 dB，与仿真结果吻合较好，在毫米波系统中具有很好的应用价值。
- 窄带带通滤波器 /
- Ka波段 /
- 基片集成波导 /
- 双模腔
Abstract: In view of the difficulty of implementing the narrow band and integration simultaneously for the traditional Ka-band filter, a Ka-band filter with narrow pass band is designed based on Substrate Integrated Waveguide (SIW). The filter adopts the structure with dual-mode circle cavity and ellipse cavity cascaded, which achieves the advantages of high frequency selectivity due to the transmission zeros both in upper and lower sideband. The measured results show that the filter has a relative bandwidth of 2.85%, insertion loss of 3.4 dB, and return loss is more than 15 dB at a center frequency 35 GHz, and the results are in good agreement with the simulation results. The measured results verify that the filter has great application value in millimeter system.
- Narrow-band filter /
- Ka-band /
- Substrate Integrated Waveguide (SIW) /
- Dual-mode cavity

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参考文献(20)

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