Low-Pass Filters in Standard Rectangular Waveguide Using 3D Printed Dielectric Inserts

被引：0
|
作者：
Stander, T. [1 ]
机构：
[1] Univ Pretoria, Dept EEC Engn, Pretoria, South Africa
来源：
2023 53RD EUROPEAN MICROWAVE CONFERENCE, EUMC | 2023年
基金：
新加坡国家研究基金会;
关键词：
3D printing; low-pass filters; stereolithography; waveguide filters;
D O I：
10.23919/EuMC58039.2023.10290635
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new approach to using dielectric 3D printing in realizing low-pass filters in waveguide is demonstrated. Cascaded stepped-impedance sections are printed and inserted into conventional WR42 off-the-shelf waveguide, with the resulting filters implementing a pass-band or 18 - 20 GHz and a stop-band of 22 - 27 GHz. Using a commonly available SLA printer and resin, maximum insertion loss of 4.3 and 5.6 dB is achieved across the band of interest for the C-first and L-first filters, respectively, with both featuring more than 30 dB attenuation across the stop-band. The effect of support structures on isolation is demonstrated
引用
收藏
页码：235 / 238
页数：4
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