Multiphysics Design of Dielectric-Coated S-Band Filter with a Screw-Free Tuning Method

Chang Che1; Tao Zhou2; Ming Yu2

10.1109/NEMO56117.2023.10202298

2023

2575-4742

979-8-3503-4741-8

2023 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO)

37-39

28-30 June 2023

Winnipeg, MB, Canada

This paper designs a fourth-order combline filter with a screw-free tuning method to enhance power capability. To satisfy the power demands, the top part of resonant columns in the filter are covered with spheres made of Teflon. The top wall of each cavity is correspondingly designed as a hemisphere to guarantee a uniform distance from the resonant columns, which avoids vulnerable points that may be broken down by high voltage. Besides, mechanical deformation is introduced as a special post-process tuning method to the filter instead of traditional tuning screws for better performance. Multiphysics analysis is applied to achieve the relationship between electromagnetic and mechanical parameters, thus providing a guideline for practical tuning structures. The coincidence between the simulation and measurement verified the proposed filter and the tuning method.

Combline filter power capability tuning method mechanical deformation

其他

CPCI-S ; EI

WOS:001050927700010

20233514659749

Tuning

Small Tools and Hardware:605

IEEE

1.Electronic Engineering Department, The Chinese University of Hong Kong, Hong Kong SAR, China
2.Shenzhen Key Laboratory of EM Information, Southern University of Science and Technology, Shenzhen, China

Chang Che,Tao Zhou,Ming Yu. Multiphysics Design of Dielectric-Coated S-Band Filter with a Screw-Free Tuning Method[C],2023:37-39.