Additive Manufacturing of E-Plane Cut Dual-Mode X-Band Waveguide Filters With Mixed Topologies

被引：21

作者：

Miek, Daniel ^{[1
]}

Simmich, Sebastian ^{[1
]}

Kamrath, Fynn ^{[1
]}

Hoeft, Michael ^{[1
]}

机构：

[1] Univ Kiel, Dept Elect & Informat Technol, D-24118 Kiel, Germany

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2020年 / 68卷 / 06期

关键词：

Couplings; Topology; Printing; Passband; Frequency division multiplexing; Scattering parameters; Additive manufacturing (AM); dual-mode filter; fused deposition modeling (FDM); mixed topology; 3-D printing; X-band waveguide filter; DESIGN; MICROWAVE; PERFORMANCE;

D O I：

10.1109/TMTT.2020.2981057

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：

In this article, the design and realization of low-loss 3-D printed waveguide filters in the X-band are discussed. Multiple transmission zeros (TZs) are introduced by using symmetrical TE301/TE102 dual-mode cavities. The design flexibility is enlarged by adding classical triplet and quadruplet sections that are combined with the dual-mode blocks. The coupling matrices of all topologies are derived, and the fundamental limitations are presented. All proposed filter setups are symmetrical and can, therefore, be cut in the $E$ -plane. This allows the application of low-cost fused deposition modeling (commonly known as FDM) additive manufacturing techniques. The galvanization process to achieve a high conductivity surface will be discussed as well. The measurements show good agreement with the simulation, while Q-factors of up to 2000 can be achieved.

引用

页码：2097 / 2107

页数：11

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