This brief is to present a resonator reuse approach in implementing a high-attenuation notch next to a passband. Each resonator is utilized twice in producing bandpass and bandstop responses at the same time, which leads to size reduction. The filter structure employs cylindrical cavity resonators and utilizes the two orthogonal TM110 modes in each cavity resonator. The proposed filter has an excellent insertion loss since the TM110 mode has a high unloaded Q-factor. For verifying the proposed filter structure, we have designed and fabricated a second-order waveguide filter having a second-order bandpass-bandstop filter cascade response.
|Number of pages||5|
|Journal||IEEE Transactions on Circuits and Systems II: Express Briefs|
|Publication status||Published - 2023 Jan 1|
Bibliographical noteFunding Information:
This work was supported by the Korea Aerospace Research Institute (KARI) under Grant FR22G00.
© 2004-2012 IEEE.
- Bandpass filter
- bandstop filter
- waveguide filter
ASJC Scopus subject areas
- Electrical and Electronic Engineering