Back to Search
Start Over
Miniaturized Multiband Substrate-Integrated Waveguide Bandpass Filters with Multi-Layer Configuration and High In-Band Isolation.
- Source :
- Electronics (2079-9292); Oct2024, Vol. 13 Issue 19, p3834, 12p
- Publication Year :
- 2024
-
Abstract
- This article presents a multiband bandpass filter structure with an in-line topology based on substrate-integrated waveguide (SIW) technology. A multi-layer configuration is employed to achieve circuit miniaturization. By constructing the coupling matrix, the coupling relationships among all resonators are quantitatively characterized, enabling the extraction of the theoretical frequency response and guiding circuit modeling and optimization. We designed and fabricated a third-order tri-band SIW filter and a third-order quad-band SIW filter, achieving a return loss of nearly 20 dB across all passbands. The close agreement between simulated and measured results validates the proposed design model. Additionally, the high in-band isolation of over 40 dB is demonstrated between all adjacent bands, highlighting the potential applicability of this technology in multiband scenarios. [ABSTRACT FROM AUTHOR]
- Subjects :
- BANDPASS filters
WAVEGUIDE filters
RESONATORS
TOPOLOGY
DESIGN
Subjects
Details
- Language :
- English
- ISSN :
- 20799292
- Volume :
- 13
- Issue :
- 19
- Database :
- Complementary Index
- Journal :
- Electronics (2079-9292)
- Publication Type :
- Academic Journal
- Accession number :
- 180276282
- Full Text :
- https://doi.org/10.3390/electronics13193834