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Inline Waveguide Filter With Compact Frequency-Dependent Coupling Producing Two Additional Poles and Three Transmission Zeros
Abstract
This work reports a compact frequency-dependent coupling (FDC) structure introduced in a rectangular waveguide, which allows to generate two additional in-band transmission poles and three transmission zeros (TZs). This serves to increase the order/selectivity of the waveguide bandpass filter in a compact inline topology, thus without the need for any additional space/volume or cross coupling. The proposed FDC consists of a partial-height post and a T-shaped post (P&T) that are placed side by side along the width of the waveguide. An equivalent circuit of the P&T FDC is also provided for the filter synthesis process. The TZs can be flexibly placed at either passband side. Electromagnetic-(EM)-simulated results for a fourth-order inline generalized-Chebyshev bandpass filter shaped by two cavity resonators that are coupled through a P&T FDC are presented to validate the RF operational principle of the conceived FDC.
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Authors (5)
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Umar A. Majeed
- Sukkur IBA University, Pakistan
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Muhammad Yameen Sandhu
- Sukkur IBA University, Pakistan
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Roberto Gómez-García prof.
- University of Alcalá, Alcalá de Henares, Hiszpania
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Keywords
Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Majeed U. A., Sandhu M. Y., Lamęcki A., Gómez-García R., Mrozowski M.: Inline Waveguide Filter With Compact Frequency-Dependent Coupling Producing Two Additional Poles and Three Transmission Zeros// / : , 2023,
- DOI:
- Digital Object Identifier (open in new tab) 10.23919/eumc58039.2023.10290186
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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