A Self-Diplexing Multi-Mode SIW Cavity-Backed Antenna with a Lambda (λ)-Shaped Slot for X- and Ku-Band Applications.
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| Title: | A Self-Diplexing Multi-Mode SIW Cavity-Backed Antenna with a Lambda (λ)-Shaped Slot for X- and Ku-Band Applications. |
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| Authors: | Asaithambi, Ravindiran1 ravigce2002@gmail.com, Prabakaran, Maruthamuthu P.2, Rajesh, Govindasamy3 |
| Source: | Progress in Electromagnetics Research C. 2026, Vol. 165, p257-266. 10p. |
| Subjects: | Substrate integrated waveguides, Multifrequency antennas, Antennas (Electronics) |
| Abstract: | This paper presents a self-diplexing, multi-mode substrate-integrated waveguide (SIW) antenna based on a cavity-backed SIW configuration. The antenna employs a λ-shaped radiating slot that provides inherent filtering characteristics. The proposed architecture achieved independent dual-band control through two diagonally oriented slots arranged at 45°, forming a λ-shaped aperture. These slots, integrated within an SIW cavity and excited by two separate 50-Ω microstrip feeds, enable dual resonances at 10.76 GHz and 12.39 GHz, corresponding to the TE210 and TE220 modes for X-band and Ku-band operation, respectively. Experimental validation confirmed reflection coefficients below -10 dB in both bands, with measured bandwidths of 3.0% (10.61-10.93 GHz) and 3.2% (12.19-12.59 GHz). The proposed filtenna achieves gains of 6.12 dBi and 6.15 dBi and exhibits high port isolation exceeding 28 dB between channels, along with an overall simulated radiation efficiency of 91.16%. In addition, a single-layer structure offers two-band operation, broadside linear polarization, and intrinsic filtering functionality, making it a compact and efficient solution for X/Ku-band applications. [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: 192058330 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Self-Diplexing Multi-Mode SIW Cavity-Backed Antenna with a Lambda (λ)-Shaped Slot for X- and Ku-Band Applications. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Asaithambi%2C+Ravindiran%22">Asaithambi, Ravindiran</searchLink><relatesTo>1</relatesTo><i> ravigce2002@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Prabakaran%2C+Maruthamuthu+P%2E%22">Prabakaran, Maruthamuthu P.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rajesh%2C+Govindasamy%22">Rajesh, Govindasamy</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, p257-266. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Substrate+integrated+waveguides%22">Substrate integrated waveguides</searchLink><br /><searchLink fieldCode="DE" term="%22Multifrequency+antennas%22">Multifrequency antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Antennas+%28Electronics%29%22">Antennas (Electronics)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper presents a self-diplexing, multi-mode substrate-integrated waveguide (SIW) antenna based on a cavity-backed SIW configuration. The antenna employs a λ-shaped radiating slot that provides inherent filtering characteristics. The proposed architecture achieved independent dual-band control through two diagonally oriented slots arranged at 45°, forming a λ-shaped aperture. These slots, integrated within an SIW cavity and excited by two separate 50-Ω microstrip feeds, enable dual resonances at 10.76 GHz and 12.39 GHz, corresponding to the TE210 and TE220 modes for X-band and Ku-band operation, respectively. Experimental validation confirmed reflection coefficients below -10 dB in both bands, with measured bandwidths of 3.0% (10.61-10.93 GHz) and 3.2% (12.19-12.59 GHz). The proposed filtenna achieves gains of 6.12 dBi and 6.15 dBi and exhibits high port isolation exceeding 28 dB between channels, along with an overall simulated radiation efficiency of 91.16%. In addition, a single-layer structure offers two-band operation, broadside linear polarization, and intrinsic filtering functionality, making it a compact and efficient solution for X/Ku-band applications. [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/PIERC25111707 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 257 Subjects: – SubjectFull: Substrate integrated waveguides Type: general – SubjectFull: Multifrequency antennas Type: general – SubjectFull: Antennas (Electronics) Type: general Titles: – TitleFull: A Self-Diplexing Multi-Mode SIW Cavity-Backed Antenna with a Lambda (λ)-Shaped Slot for X- and Ku-Band Applications. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Asaithambi, Ravindiran – PersonEntity: Name: NameFull: Prabakaran, Maruthamuthu P. – PersonEntity: Name: NameFull: Rajesh, Govindasamy 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 |
