Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz
The novel ridge-gap waveguide (RGW) technology which uses an entire metal structure has various advantages at high frequencies, such as broad bandwidth, low loss, low sensitivity to manufacturing errors, and uncomplicated integration with passive and active components. In this paper, a broadband RGW...
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IEEE
2023-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10122947/ |
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| author | Parisa Mahdavi S. Esmail Hosseini Pedram Shojaadini |
| author_facet | Parisa Mahdavi S. Esmail Hosseini Pedram Shojaadini |
| author_sort | Parisa Mahdavi |
| collection | DOAJ |
| description | The novel ridge-gap waveguide (RGW) technology which uses an entire metal structure has various advantages at high frequencies, such as broad bandwidth, low loss, low sensitivity to manufacturing errors, and uncomplicated integration with passive and active components. In this paper, a broadband RGW-based three-section branch-line coupler in the frequency band of 12 to 20 GHz is proposed, simulated, and experimentally demonstrated. The proposed structure employs four short stubs at the branches with a quarter wavelength for impedance matching. Also, four steps have been added for better power division on the coupling branch lines. The proposed structure with WR62 transition shows low-loss, equal-power division, 90-degree with good impedance matching, and isolation in the frequency band of 12–20 GHz containing the Ku band, and, the measured results are in good agreement with the simulations. The introduced structure can be extended to an arbitrary broadband power divider/combiner, which can find various applications, such as in array antenna feed networks and solid-state power amplifiers. It can be redesigned for broadband, high-power, and low-cost millimeter-wave applications. |
| format | Article |
| id | doaj-art-5ae2ef857b6d43db9381b9b7f8fe604d |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-5ae2ef857b6d43db9381b9b7f8fe604d2024-12-11T00:01:17ZengIEEEIEEE Access2169-35362023-01-0111469034691410.1109/ACCESS.2023.327508410122947Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHzParisa Mahdavi0S. Esmail Hosseini1https://orcid.org/0000-0003-3404-7635Pedram Shojaadini2Department of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University, Shiraz, IranDepartment of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University, Shiraz, IranComputer Sciences and Engineering Department, University of Quebec in Outaouais, Gatineau, QC, CanadaThe novel ridge-gap waveguide (RGW) technology which uses an entire metal structure has various advantages at high frequencies, such as broad bandwidth, low loss, low sensitivity to manufacturing errors, and uncomplicated integration with passive and active components. In this paper, a broadband RGW-based three-section branch-line coupler in the frequency band of 12 to 20 GHz is proposed, simulated, and experimentally demonstrated. The proposed structure employs four short stubs at the branches with a quarter wavelength for impedance matching. Also, four steps have been added for better power division on the coupling branch lines. The proposed structure with WR62 transition shows low-loss, equal-power division, 90-degree with good impedance matching, and isolation in the frequency band of 12–20 GHz containing the Ku band, and, the measured results are in good agreement with the simulations. The introduced structure can be extended to an arbitrary broadband power divider/combiner, which can find various applications, such as in array antenna feed networks and solid-state power amplifiers. It can be redesigned for broadband, high-power, and low-cost millimeter-wave applications.https://ieeexplore.ieee.org/document/10122947/Branch-line couplerKu bandridge gap waveguide (RGW)return lossinsertion loss |
| spellingShingle | Parisa Mahdavi S. Esmail Hosseini Pedram Shojaadini Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz IEEE Access Branch-line coupler Ku band ridge gap waveguide (RGW) return loss insertion loss |
| title | Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz |
| title_full | Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz |
| title_fullStr | Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz |
| title_full_unstemmed | Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz |
| title_short | Broadband Three-Section Branch-Line Coupler Realized by Ridge Gap Waveguide Technology From 12 to 20 GHz |
| title_sort | broadband three section branch line coupler realized by ridge gap waveguide technology from 12 to 20 ghz |
| topic | Branch-line coupler Ku band ridge gap waveguide (RGW) return loss insertion loss |
| url | https://ieeexplore.ieee.org/document/10122947/ |
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