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Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities
The article presents a novel circular substrate-integrated waveguide (SIW) bandpass filter (BPF) with controllable bandwidth. The proposed BPF was configured using two microstrip feed lines, semi-circular SIW cavities, capacitive slots, and inductive vias. The circular cavity was divided into two ha...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10346926/ https://www.ncbi.nlm.nih.gov/pubmed/37448011 http://dx.doi.org/10.3390/s23136162 |
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author | Pradhan, Nrusingha Charan Koziel, Slawomir Barik, Rusan Kumar Pietrenko-Dabrowska, Anna |
author_facet | Pradhan, Nrusingha Charan Koziel, Slawomir Barik, Rusan Kumar Pietrenko-Dabrowska, Anna |
author_sort | Pradhan, Nrusingha Charan |
collection | PubMed |
description | The article presents a novel circular substrate-integrated waveguide (SIW) bandpass filter (BPF) with controllable bandwidth. The proposed BPF was configured using two microstrip feed lines, semi-circular SIW cavities, capacitive slots, and inductive vias. The circular cavity was divided into two halves, and the two copies were cascaded. The resulting bisected and cascaded structures were then connected back-to-back. Finally, by introducing two inductive vias to the circular center cavity, a transmission zero was generated. In order to examine the design concept, a coupling matrix was generated. To demonstrate the theory, a third-order BPF was realized, fabricated, and experimentally validated. The BPF prototype features a wide passband of 8.7%, a low insertion loss of 1.1 dB, and a stopband of 1.5 [Formula: see text] with a rejection level better than 20 dB, which makes it a potential candidate for microwave sensing and communication industries. |
format | Online Article Text |
id | pubmed-10346926 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-103469262023-07-15 Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities Pradhan, Nrusingha Charan Koziel, Slawomir Barik, Rusan Kumar Pietrenko-Dabrowska, Anna Sensors (Basel) Article The article presents a novel circular substrate-integrated waveguide (SIW) bandpass filter (BPF) with controllable bandwidth. The proposed BPF was configured using two microstrip feed lines, semi-circular SIW cavities, capacitive slots, and inductive vias. The circular cavity was divided into two halves, and the two copies were cascaded. The resulting bisected and cascaded structures were then connected back-to-back. Finally, by introducing two inductive vias to the circular center cavity, a transmission zero was generated. In order to examine the design concept, a coupling matrix was generated. To demonstrate the theory, a third-order BPF was realized, fabricated, and experimentally validated. The BPF prototype features a wide passband of 8.7%, a low insertion loss of 1.1 dB, and a stopband of 1.5 [Formula: see text] with a rejection level better than 20 dB, which makes it a potential candidate for microwave sensing and communication industries. MDPI 2023-07-05 /pmc/articles/PMC10346926/ /pubmed/37448011 http://dx.doi.org/10.3390/s23136162 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pradhan, Nrusingha Charan Koziel, Slawomir Barik, Rusan Kumar Pietrenko-Dabrowska, Anna Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities |
title | Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities |
title_full | Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities |
title_fullStr | Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities |
title_full_unstemmed | Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities |
title_short | Bandwidth-Controllable Third-Order Band Pass Filter Using Substrate-Integrated Full- and Semi-Circular Cavities |
title_sort | bandwidth-controllable third-order band pass filter using substrate-integrated full- and semi-circular cavities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10346926/ https://www.ncbi.nlm.nih.gov/pubmed/37448011 http://dx.doi.org/10.3390/s23136162 |
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