Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching
A planar and low-cost parallel-plate waveguide (PPW) launcher based on substrate integrated waveguide (SIW) technology is proposed. It can launch the fundamental TEM mode with a collimated wave front into a PPW structure while also being low profile and easy to fabricate. The launcher is implemented...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8620228/ |
| _version_ | 1818913076844429312 |
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| author | Victoria Gomez-Guillamon Buendia Symon K. Podilchak Davide Comite Paolo Baccarelli Paolo Burghignoli Jose Luis Gomez Tornero George Goussetis |
| author_facet | Victoria Gomez-Guillamon Buendia Symon K. Podilchak Davide Comite Paolo Baccarelli Paolo Burghignoli Jose Luis Gomez Tornero George Goussetis |
| author_sort | Victoria Gomez-Guillamon Buendia |
| collection | DOAJ |
| description | A planar and low-cost parallel-plate waveguide (PPW) launcher based on substrate integrated waveguide (SIW) technology is proposed. It can launch the fundamental TEM mode with a collimated wave front into a PPW structure while also being low profile and easy to fabricate. The launcher is implemented using a network of SIW transmission lines and its design is based on the leaky-wave (LW) theory. In our proposed structure, a selection of the SIW lines is made to leak power into the desired PPW region by means of a partially reflective surface, enabling planar wave front propagation of the TEM mode where efficiency values of over 90% are achieved. Measurements of a fabricated prototype are also reported at 15 GHz to demonstrate the design procedure and validate structure operation. When compared with similar co-axial and metallic waveguide launchers, our proposed SIW structure represents a compact, integrated, and unique design solution which may be useful to feed planar parallel-plate slot arrays and end-fire antennas. In addition, our novel and simple approach for PPW excitation can also be applied to other parallel-plate-based guides, low-cost transitions, and compact dividing/combining circuits for a new antenna and non-radiating LW feed systems at microwave and millimeter-wave frequencies. |
| first_indexed | 2024-12-19T23:24:45Z |
| format | Article |
| id | doaj.art-8a44f94052174e6ca1abb29d9f1c9151 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T23:24:45Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-8a44f94052174e6ca1abb29d9f1c91512022-12-21T20:01:53ZengIEEEIEEE Access2169-35362019-01-017133731338210.1109/ACCESS.2019.28934838620228Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide LaunchingVictoria Gomez-Guillamon Buendia0Symon K. Podilchak1https://orcid.org/0000-0001-6062-6732Davide Comite2Paolo Baccarelli3Paolo Burghignoli4Jose Luis Gomez Tornero5George Goussetis6Institute of Sensors, Signals, and Systems, School of Engineering and Physical Sciences, Edinburgh Campus, Heriot-Watt University, Edinburgh, U.K.Institute of Sensors, Signals, and Systems, School of Engineering and Physical Sciences, Edinburgh Campus, Heriot-Watt University, Edinburgh, U.K.Department of Information Engineering, Electronics and Telecommunications, La Sapienza University of Rome, Rome, ItalyDepartment of Engineering, Roma Tre University, Rome, ItalyDepartment of Information Engineering, Electronics and Telecommunications, La Sapienza University of Rome, Rome, ItalyDepartment of Communication and Information Technologies, Universidad Politecnica de Cartagena, Cartagena, SpainInstitute of Sensors, Signals, and Systems, School of Engineering and Physical Sciences, Edinburgh Campus, Heriot-Watt University, Edinburgh, U.K.A planar and low-cost parallel-plate waveguide (PPW) launcher based on substrate integrated waveguide (SIW) technology is proposed. It can launch the fundamental TEM mode with a collimated wave front into a PPW structure while also being low profile and easy to fabricate. The launcher is implemented using a network of SIW transmission lines and its design is based on the leaky-wave (LW) theory. In our proposed structure, a selection of the SIW lines is made to leak power into the desired PPW region by means of a partially reflective surface, enabling planar wave front propagation of the TEM mode where efficiency values of over 90% are achieved. Measurements of a fabricated prototype are also reported at 15 GHz to demonstrate the design procedure and validate structure operation. When compared with similar co-axial and metallic waveguide launchers, our proposed SIW structure represents a compact, integrated, and unique design solution which may be useful to feed planar parallel-plate slot arrays and end-fire antennas. In addition, our novel and simple approach for PPW excitation can also be applied to other parallel-plate-based guides, low-cost transitions, and compact dividing/combining circuits for a new antenna and non-radiating LW feed systems at microwave and millimeter-wave frequencies.https://ieeexplore.ieee.org/document/8620228/Feeding networkleaky-waves (LWs)parallel-plate waveguide (PPW)substrate integrated waveguide (SIW)TEM mode |
| spellingShingle | Victoria Gomez-Guillamon Buendia Symon K. Podilchak Davide Comite Paolo Baccarelli Paolo Burghignoli Jose Luis Gomez Tornero George Goussetis Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching IEEE Access Feeding network leaky-waves (LWs) parallel-plate waveguide (PPW) substrate integrated waveguide (SIW) TEM mode |
| title | Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching |
| title_full | Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching |
| title_fullStr | Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching |
| title_full_unstemmed | Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching |
| title_short | Compact Leaky SIW Feeder Offering TEM Parallel Plate Waveguide Launching |
| title_sort | compact leaky siw feeder offering tem parallel plate waveguide launching |
| topic | Feeding network leaky-waves (LWs) parallel-plate waveguide (PPW) substrate integrated waveguide (SIW) TEM mode |
| url | https://ieeexplore.ieee.org/document/8620228/ |
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