A Simple Method to Design Ridge Waveguide Filters with Evanescent Mode Couplings

Date

2022-01-01

Author

Ozturk, Onur Ozan
Yıldırım, Nevzat

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A simple approach is introduced to design ridge waveguide (RWG) filters with evanescent waveguide (EWG) couplings based on the observation that when all inverters and all resonators of an inverter coupled filter are replaced by equal length EWG pieces and equal length RWG pieces respectively, all responses are destroyed (bandwidth changes, passband shifts away and passband ripple increases) but the number of reflection zeros are preserved. It is noticed that the targeted responses of this highly distorted filter can be recovered simply by tuning lengths of EWG and RWG pieces in a systematic manner. Two examples are presented.

Subject Keywords

evanescent couplings, evanescent waveguide, inverter couplings, microwave filters, ridge waveguide

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85142039448&origin=inward
https://hdl.handle.net/11511/101676

Conference Name

24th International Microwave and Radar Conference, MIKON 2022

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

O. O. Ozturk and N. Yıldırım, “A Simple Method to Design Ridge Waveguide Filters with Evanescent Mode Couplings,” presented at the 24th International Microwave and Radar Conference, MIKON 2022, Gdansk, Polonya, 2022, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85142039448&origin=inward.