Ka波段基片集成波導(dǎo)窄帶帶通濾波器設(shè)計

葛俊祥; 李浩; 楊現(xiàn)志; 汪潔

doi:10.11999/JEIT160647

Ka波段基片集成波導(dǎo)窄帶帶通濾波器設(shè)計

doi: 10.11999/JEIT160647 cstr: 32379.14.JEIT160647

基金項目:

國家自然科學(xué)基金(61372066)，江蘇省雙創(chuàng)團(tuán)隊人才計劃

計量
- 文章訪問數(shù): 1596
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- 被引次數(shù): 0
出版歷程
- 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: 該文針對傳統(tǒng)濾波器在Ka波段難以同時實現(xiàn)窄帶與集成的問題，采用基片集成波導(dǎo)結(jié)構(gòu)(SIW)設(shè)計了一款Ka波段平面窄帶帶通濾波器。該濾波器采用雙模圓腔與橢圓腔級聯(lián)的結(jié)構(gòu)，在上下邊帶分別產(chǎn)生一個傳輸零點，具有頻率高選擇特性。測試結(jié)果表明，該濾波器中心頻率35 GHz，相對帶寬2.85%，插入損耗約為3.4 dB，帶內(nèi)回波損耗大于15 dB，與仿真結(jié)果吻合較好，在毫米波系統(tǒng)中具有很好的應(yīng)用價值。
- 窄帶帶通濾波器 /
- Ka波段 /
- 基片集成波導(dǎo) /
- 雙模腔
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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參考文獻(xiàn)(20)

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