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Abstract
This paper presents an accurate synthesis method for inline SIW (Substrate Integrated Waveguide) generalized Chebyshev bandpass filters with frequency-dependent couplings. The technique is based on the synthesis of a coupling matrix that takes into account the impedance of the frequency-dependent stub. Thus, a loading effect compensation in adjacent resonators (via resonant frequency adjustment) and coupling elements (via coupling-value modifications) is possible. The application of this method of synthesis is illustrated through an experiment in which a third-order filter consisting of rectangular half-wavelength resonators is implemented in substrate integrated waveguide (SIW) technology. The resonators are separated by inductive irises and a parallel shorted stub. The stub acts as a dispersive inverter and produces the transmission zero. A substantial improvement in design accuracy is thus obtained. The measured and simulated results for this method are in good agreement.
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- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Title of issue:
- 20th International Conference on Microwaves, Radar and Wireless Communications : (MIKON ) strony 533 - 536
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Jędrzejewski A., Szydłowski Ł., Mrozowski M..: Accurate design of pseudoelliptic inline SIW filters with frequency-dependent couplings, W: 20th International Conference on Microwaves, Radar and Wireless Communications : (MIKON ), 2014, IEEE,.
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/mikon.2014.6899930
- Verified by:
- Gdańsk University of Technology
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