Design and Fabrication of a New Triple-Band Bandpass Filter with Adjustable Bandwidth Passbands Depending on Coupling Transmission Poles with Center Frequencies of SIW Cavity Modes.
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| Title: | Design and Fabrication of a New Triple-Band Bandpass Filter with Adjustable Bandwidth Passbands Depending on Coupling Transmission Poles with Center Frequencies of SIW Cavity Modes. |
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| Authors: | Haddar, Obaida Oulad1,2, Boulesbaa, Mohammed1,2 boulesbaa.mohammed@univ-ouargla.dz, Djerafi, Tarek3 |
| Source: | Progress in Electromagnetics Research C. 2026, Vol. 165, p48-60. 13p. |
| Subjects: | Substrate integrated waveguides, Bandpass filters, Design, Transmission zeros, Bandwidths, Broadband communication systems, Coupled mode theory (Wave-motion) |
| Abstract: | In this research, a simple design with a compact size of a triple-band bandpass filter (BPF) based on SIW is proposed. The proposed design consists of a main SIW cavity combined with two others-secondary SIW cavities. The three passbands of the proposed BPF are formed based on the center frequencies (CFs) of the four modes given by the main SIW cavity and two transmission poles (TP1 and TP2) achieved with the secondary SIW cavity. The SIW modes achieved with the main SIW cavity are TE101, TE201, and TE301 addition to the suppressed mode, and those modes are realized by the perturbation of seven metallic vias. The coupling of the TP1 with the suppressed mode realizes the first passband of the filter proposed with a bandwidth of 0.53 GHz. Vertical CPW slots are etched at the main SIW cavity for coupling TE101 and TE201 to form the second passband with a bandwidth of 1.3 GHz. Horizontal CPW slots are etched in the two rectangular secondary SIW cavities to join the TP2 with TE301 mode for realizing the third passband with a bandwidth of 1.2 GHz. Finally, an adjustable bandwidth filter with CFs of 6.9/10.1/13.3 GHz, respectively, has been achieved. Also, six transmission zeros (TZs) are achieved in the operation frequency range (6-16 GHz), which improves the selectivity of the filter. The proposed filter is modeled with an approximate equivalent circuit, and the prototype of the filter is fabricated and tested to demonstrate its excellent performance. A good agreement was realized among simulation, equivalent circuit LC model, and measurement S-parameters, which proves and validates the operation of the proposed triple-band BPF. The multiple advantages of the proposed filter, such as a simple structure, compactness (1.29 λg x 1.62 λg), selectivity, and high performance, make it a promising candidate for multi-tasking communication systems. [ABSTRACT FROM AUTHOR] |
| Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192058318 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Design and Fabrication of a New Triple-Band Bandpass Filter with Adjustable Bandwidth Passbands Depending on Coupling Transmission Poles with Center Frequencies of SIW Cavity Modes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Haddar%2C+Obaida+Oulad%22">Haddar, Obaida Oulad</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Boulesbaa%2C+Mohammed%22">Boulesbaa, Mohammed</searchLink><relatesTo>1,2</relatesTo><i> boulesbaa.mohammed@univ-ouargla.dz</i><br /><searchLink fieldCode="AR" term="%22Djerafi%2C+Tarek%22">Djerafi, Tarek</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 165, p48-60. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Substrate+integrated+waveguides%22">Substrate integrated waveguides</searchLink><br /><searchLink fieldCode="DE" term="%22Bandpass+filters%22">Bandpass filters</searchLink><br /><searchLink fieldCode="DE" term="%22Design%22">Design</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+zeros%22">Transmission zeros</searchLink><br /><searchLink fieldCode="DE" term="%22Bandwidths%22">Bandwidths</searchLink><br /><searchLink fieldCode="DE" term="%22Broadband+communication+systems%22">Broadband communication systems</searchLink><br /><searchLink fieldCode="DE" term="%22Coupled+mode+theory+%28Wave-motion%29%22">Coupled mode theory (Wave-motion)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this research, a simple design with a compact size of a triple-band bandpass filter (BPF) based on SIW is proposed. The proposed design consists of a main SIW cavity combined with two others-secondary SIW cavities. The three passbands of the proposed BPF are formed based on the center frequencies (CFs) of the four modes given by the main SIW cavity and two transmission poles (TP1 and TP2) achieved with the secondary SIW cavity. The SIW modes achieved with the main SIW cavity are TE101, TE201, and TE301 addition to the suppressed mode, and those modes are realized by the perturbation of seven metallic vias. The coupling of the TP1 with the suppressed mode realizes the first passband of the filter proposed with a bandwidth of 0.53 GHz. Vertical CPW slots are etched at the main SIW cavity for coupling TE101 and TE201 to form the second passband with a bandwidth of 1.3 GHz. Horizontal CPW slots are etched in the two rectangular secondary SIW cavities to join the TP2 with TE301 mode for realizing the third passband with a bandwidth of 1.2 GHz. Finally, an adjustable bandwidth filter with CFs of 6.9/10.1/13.3 GHz, respectively, has been achieved. Also, six transmission zeros (TZs) are achieved in the operation frequency range (6-16 GHz), which improves the selectivity of the filter. The proposed filter is modeled with an approximate equivalent circuit, and the prototype of the filter is fabricated and tested to demonstrate its excellent performance. A good agreement was realized among simulation, equivalent circuit LC model, and measurement S-parameters, which proves and validates the operation of the proposed triple-band BPF. The multiple advantages of the proposed filter, such as a simple structure, compactness (1.29 λg x 1.62 λg), selectivity, and high performance, make it a promising candidate for multi-tasking communication systems. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.2528/PIERC25092906 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 48 Subjects: – SubjectFull: Substrate integrated waveguides Type: general – SubjectFull: Bandpass filters Type: general – SubjectFull: Design Type: general – SubjectFull: Transmission zeros Type: general – SubjectFull: Bandwidths Type: general – SubjectFull: Broadband communication systems Type: general – SubjectFull: Coupled mode theory (Wave-motion) Type: general Titles: – TitleFull: Design and Fabrication of a New Triple-Band Bandpass Filter with Adjustable Bandwidth Passbands Depending on Coupling Transmission Poles with Center Frequencies of SIW Cavity Modes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Haddar, Obaida Oulad – PersonEntity: Name: NameFull: Boulesbaa, Mohammed – PersonEntity: Name: NameFull: Djerafi, Tarek IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19378718 Numbering: – Type: volume Value: 165 Titles: – TitleFull: Progress in Electromagnetics Research C Type: main |
| ResultId | 1 |
