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- Title
Design of dual‐band balanced bandpass filter based on a single substrate integrated waveguide cavity.
- Authors
Zhou, Xin; Zhang, Gang; Zheng, Jian; Tan, Qian; Chen, Xikang; Tang, Wanchun; Yang, Jiquan
- Abstract
This paper proposes a dual‐band balanced bandpass filter (BPF) based on a single interfered substrate integrated waveguide (SIW) cavity. The TE201, TE202, TE401, and TE402‐modes are controlled by the metallic vias and divided into two groups. The first passband is made up of the affected TE201 and TE202‐modes, while the second passband is made up of the disturbed TE401 and TE402‐modes. In this balanced BPF design, it realizes the requested differential‐mode (DM) transmission and common‐mode (CM) suppression. Particularly, the bandwidths (BWs) of the two DM passbands can be efficiently controlled by only adjusting the locations of these metallic vias. A prototype dual‐band balanced BPF operating at 16.71 and 22.23 GHz with BWs controllable is fabricated and measured for verification. Good accordance between simulation and measurement can be observed.
- Subjects
BANDPASS filters; GYROTRONS; DESIGN; BANDWIDTHS
- Publication
International Journal of RF & Microwave Computer-Aided Engineering, 2022, Vol 32, Issue 8, p1
- ISSN
1096-4290
- Publication type
Article
- DOI
10.1002/mmce.23213