A 20–26.5-GHz PCB Bandpass Filter Tuned With Contactless Tuners
A 20–26.5-GHz PCB Bandpass Filter Tuned With Contactless Tuners
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使用非接触式调谐器调谐的 20–26.5GHz PCB 带通滤波器
DOI：
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发表时间：
2019
影响因子：
3
通讯作者：
D. Peroulis
中科院分区：
文献类型：
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作者：
Pintu Adhikari;Wei Yang;D. Peroulis
这封信介绍了第一个基片集成波导（SIW） ${k}$带滤波器与非接触式印刷电路板（PCB）调谐器调谐。与以前的努力不同，所提出的滤波器具有两个关键优势，使它们在制造、性能和可靠性方面特别具有吸引力：1)它们基于低成本PCB技术；2)它们采用非接触式调谐器，与它们控制的倏逝模式（EVA）腔没有硬接触。在20-26.5 GHz频段进行了3.2-3.4 dB损耗的概念验证双极样机的实验验证。制造的谐振器采用独特的非接触式调谐器几何结构，通过利用扩展腔侧壁将插入损耗（IL）降至最低。该设计在演示频段内平均提高了10 dB的IL。这封信还讨论了制造缺陷及其对过滤器性能的影响。
This letter presents the first substrate integrated waveguide (SIW) ${k}$ -band filters tuned with contactless printed circuit board (PCB) tuners. Unlike previous efforts, the presented filters exhibit two key advantages that make them particularly attractive with respect to manufacturing, performance, and reliability: 1) they are based on low-cost PCB technology and 2) they employ contactless tuners that exhibit no hard contacts with the evanescent-mode (EVA) cavities they control. A proof-of-concept two-pole prototype with 3.2–3.4 dB loss is experimentally demonstrated in the 20–26.5 GHz band. The fabricated resonators employ a unique contactless tuner geometry that minimizes insertion loss (IL) by utilizing extended cavity sidewalls. This design improves IL by an average of 10 dB in the demonstrated band. This letter also discusses fabrication imperfections and their impact on filter performance.