Rectangular Waveguide Filters Based on Deformed Dual-Mode Cavity Resonators

被引：2

作者：

Baranowski, Michal ^{[1
]}

Balewski, Lukasz ^{[2
]}

Lamecki, Adam ^{[1
,2
]}

Mrozowski, Michal ^{[1
]}

机构：

[1] Gdansk Univ Technol, Fac Elect Telecommun & Informat, Dept Microwave & Antenna Engn, Gdansk, Poland

[2] EM Invent Sp Zoo, Gdansk, Poland

来源：

2023 53RD EUROPEAN MICROWAVE CONFERENCE, EUMC | 2023年

关键词：

Dual-mode waveguide filters; design optimization; shape deformation; additive manufacturing; PERFORMANCE; MICROWAVE; DESIGN;

D O I：

10.23919/EuMC58039.2023.10290374

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 paper, a novel design for rectangular waveguide filters with deformed dual-mode (DM) cavity resonators is demonstrated. The new resonant cavity shape is a result of applying shape deformation to the basic rectangular cavity to enable its dual-mode operation. Internal coupling between the two orthogonal cavity modes is realized by geometry deformation, eliminating the need for additional coupling elements. The designs are developed within the constraints of 3-D printing to allow their fabrication in one piece. In addition, the design method used results in models with smooth surfaces, which is highly desirable for high-power and low-loss applications. A deformed DM cavity is analyzed and a single cavity second-order filter is designed and presented. Finally, two types of fourth-order filters with transmission zeros are designed by combining two deformed DM cavities and their performance is verified experimentally by a 3D-printed prototype.

引用

页码：400 / 403

页数：4

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