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Abstract
This letter reports the design techniques for a class 2 of inline waveguide bandpass filters with sharp-rejection capabil3 ities at the lower stopband based on a novel nonlinear-frequency4 variant-coupling (NFVC) structure. The proposed NFVC consists 5 of a modified-T-shaped metallic post (MTP) that is placed at the 6 center of the waveguide broad wall with its open arms lying 7 along the waveguide width. The engineered NFVC structure 8 produces a first-order bandpass filtering transfer function with 9 a pair of transmission zeros (TZs) located below the passband 10 range. To demonstrate the usefulness of the proposed NFVC 11 inverter, a 9.9-GHz third-order inline waveguide bandpass filter 12 prototype with two TZs is developed and tested. It consists of 13 two half-wavelength cavity resonators coupled together via the 14 conceived MTP coupling structure. The measured results are in 15 close agreement with the electromagnetic (EM) simulated ones, 16 thus validating the devised waveguide filter design principle
Citations
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Authors (5)
-
Muhammad Yameen Sandhu
- Sukkur IBA University
-
Roberto Gomez-Garcia
- University of Alcalá
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/LMWC.2022.3208141
- License
- Copyright (2022 IEEE)
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
no. 33,
pages 145 - 148,
ISSN: 1531-1309 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Sandhu M. Y., Jasiński M., Lamęcki A., Gomez-Garcia R., Mrozowski M.: Inline Waveguide Filter With Transmission Zeros Using a Modified-T-Shaped-Post Coupling Inverter// IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS -Vol. 33,iss. 2 (2023), s.145-148
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/lmwc.2022.3208141
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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