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Abstract
In this investigation, an ultra-compact dual-mode bandpass filter (BPF) with a wide stopband re-sponse is realized by using a half-mode substrate-integrated rectangular cavity (HMSIRC). The HMSIRC resonator is designed with a cavity that is rectangular in shape and has metallic vias along three of the sides. The fourth side is open-ended and contains microstrip feed lines. For the purpose of constructing a magnetic wall, a rectangular slot is cut into each of the HMSIRC’s three edges. In order to produce an electrical wall that may generate a variety of resonances, the side with the open edges is provided with a single metallic via in the center. After that, a second-order BPF is generated by loading a transverse slot in the middle of the BPF, which enables independent frequency regulation of the mode frequencies. The eigen-mode analysis; field distributions; cou-pling matrix; and full-wave simulation of the proposed HMSIRC filter topology are used to de-velop the working principle of the filter. A second-order BPF is realized, constructed, and experi-mentally validated in order to provide evidence that the theory is correct. The BPF prototype achieves satisfactory performance thanks to its compact footprint of 0.028 λg2; its broad passband of 15.9%; its low insertion loss of 0.41 dB; and its wide stopband of 4.36 f0 with a rejection level greater than 20 dB. Both the measured and EM-simulated responses of the BPF are very consistent with one another.
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Authors (3)
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Rusan Barik
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/electronics12132831
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Electronics
no. 12,
ISSN: 2079-9292 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Barik R., Kozieł S., Pietrenko-Dąbrowska A.: Broad Stopband, Low-Loss, and Ultra-Compact Dual-Mode Bandpass Filter Based on HMSIRC// Electronics -,iss. 12 (2023), s.1-13
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/electronics12132831
- Sources of funding:
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- Free publication
- Verified by:
- Gdańsk University of Technology
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