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Dual-passband filter using dual-mode substrate-integrated waveguide resonator.
- Source :
-
Electromagnetics . 2023, Vol. 43 Issue 8, p607-619. 13p. - Publication Year :
- 2023
-
Abstract
- A novel dual-band bandpass filter (DB-BPF) based on SIW dual-mode resonant cavity is proposed in this study. This resonant cavity works in the degenerate mode TE102 mode and TE201 mode. The two modes of operation are coupled by opening a window between the resonant cavities, and the passband frequency of the DB-BPF is adjusted by controlling two degenerate modes. This filter works at 9 GHz and 9.5 GHz and has a 3-dB fractional bandwidth of 2.2% and 3.5% GHz, respectively, and has three transmission zeros (TZs) which improve out-of-band rejection and isolation between high-passband and low-passband. The return loss in the high-passband and low-passband is below 13 dB; the insertion loss of the high-passband and low-passband is 2.32 dB and 3.16 dB, respectively. The measured results agree well with the simulation results, which proves the feasibility of the design method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02726343
- Volume :
- 43
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Electromagnetics
- Publication Type :
- Academic Journal
- Accession number :
- 174099774
- Full Text :
- https://doi.org/10.1080/02726343.2023.2291532