Highly-Compact Dual-Band Bandpass Waveguide Filter Based on Cross-Shaped Frequency-Dependent Coupling
Abstract
This work reports the design of an original class of highly-compact dual-band bandpass filter based on dual-mode waveguide resonators inter-coupled through a novel type of frequency-dependent coupling (FDC). The devised FDC consists of a cross-shaped metallic structure placed in the broad wall of a rectangular waveguide. This FDC produces two additional poles and three extra transmission zeros (TZs). Specifically, each pole is surrounded by a pair of TZs, thus generating a dual-band bandpass filtering response. An equivalent lumped-element circuit model of the proposed FDC is provided to facilitate the filter synthesis process. For validation purposes, electromagnetic-(EM)-simulation results for a third-order dual-band bandpass filter design made up of two dual-mode rectangular waveguide resonators inter-coupled with a cross-shaped FDC are presented.
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Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Irum L., Sandhu M. Y., Lamęcki A., Gomez-Garcia R., Mrozowski M.: Highly-Compact Dual-Band Bandpass Waveguide Filter Based on Cross-Shaped Frequency-Dependent Coupling// / : , 2024,
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/imfw59690.2024.10477118
- Sources of funding:
-
- Sukkur IBA University internal research grant no. SUK-IBA/ORIC/270/2021.
- Project New concepts in microwave filters, phasers and multifunctional passive circuits for future RF systems
- IDUB
- Verified by:
- Gdańsk University of Technology
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