A Wideband Vivaldi Array With Enhanced Power Handling Capacity
This paper proposes an all-metal Vivaldi array based on the tight coupling effect with enhanced power handling capacity (PHC). To achieve this, L29 connectors and enlarged parallel-plate waveguides are strategically implemented to reduce localized electric field intensity. By optimizing the reflecti...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/ijap/8508159 |
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| _version_ | 1849704490504028160 |
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| author | Hongzhou Gong Jiande Zhang Chengwei Yuan Qiang Zhang Yanhong Yu |
| author_facet | Hongzhou Gong Jiande Zhang Chengwei Yuan Qiang Zhang Yanhong Yu |
| author_sort | Hongzhou Gong |
| collection | DOAJ |
| description | This paper proposes an all-metal Vivaldi array based on the tight coupling effect with enhanced power handling capacity (PHC). To achieve this, L29 connectors and enlarged parallel-plate waveguides are strategically implemented to reduce localized electric field intensity. By optimizing the reflective cavity dimensions, half-wavelength resonance within the operational bandwidth is effectively suppressed. Furthermore, extending the arms of edge elements mitigates the E-plane truncation effect. The designed array demonstrates an active voltage standing wave ratio (VSWR) below 2 across 0.55–4.17 GHz and below 3 within 0.53–4.15 GHz while scanning up to 45° in both E- and H-planes. A prototype 8 × 10 array (370 × 240 mm) was fabricated and tested, achieving a PHC of ≥ 10.1 MW at broadside and ≥ 7.25 MW at 45° scan angles. Measured results align closely with simulations, validating the design’s robustness for high-power microwave (HPM) applications. |
| format | Article |
| id | doaj-art-63e4154b972742fa95d9c5fe79485c2c |
| institution | DOAJ |
| issn | 1687-5877 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-63e4154b972742fa95d9c5fe79485c2c2025-08-20T03:16:45ZengWileyInternational Journal of Antennas and Propagation1687-58772025-01-01202510.1155/ijap/8508159A Wideband Vivaldi Array With Enhanced Power Handling CapacityHongzhou Gong0Jiande Zhang1Chengwei Yuan2Qiang Zhang3Yanhong Yu4College of Advanced Interdisciplinary StudiesCollege of Advanced Interdisciplinary StudiesCollege of Advanced Interdisciplinary StudiesCollege of Advanced Interdisciplinary StudiesCollege of Advanced Interdisciplinary StudiesThis paper proposes an all-metal Vivaldi array based on the tight coupling effect with enhanced power handling capacity (PHC). To achieve this, L29 connectors and enlarged parallel-plate waveguides are strategically implemented to reduce localized electric field intensity. By optimizing the reflective cavity dimensions, half-wavelength resonance within the operational bandwidth is effectively suppressed. Furthermore, extending the arms of edge elements mitigates the E-plane truncation effect. The designed array demonstrates an active voltage standing wave ratio (VSWR) below 2 across 0.55–4.17 GHz and below 3 within 0.53–4.15 GHz while scanning up to 45° in both E- and H-planes. A prototype 8 × 10 array (370 × 240 mm) was fabricated and tested, achieving a PHC of ≥ 10.1 MW at broadside and ≥ 7.25 MW at 45° scan angles. Measured results align closely with simulations, validating the design’s robustness for high-power microwave (HPM) applications.http://dx.doi.org/10.1155/ijap/8508159 |
| spellingShingle | Hongzhou Gong Jiande Zhang Chengwei Yuan Qiang Zhang Yanhong Yu A Wideband Vivaldi Array With Enhanced Power Handling Capacity International Journal of Antennas and Propagation |
| title | A Wideband Vivaldi Array With Enhanced Power Handling Capacity |
| title_full | A Wideband Vivaldi Array With Enhanced Power Handling Capacity |
| title_fullStr | A Wideband Vivaldi Array With Enhanced Power Handling Capacity |
| title_full_unstemmed | A Wideband Vivaldi Array With Enhanced Power Handling Capacity |
| title_short | A Wideband Vivaldi Array With Enhanced Power Handling Capacity |
| title_sort | wideband vivaldi array with enhanced power handling capacity |
| url | http://dx.doi.org/10.1155/ijap/8508159 |
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