High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna
Abstract In this paper, a multilayer monopulse antenna at Ku-Band with high efficiency, high power handling capability, high gain, 45° linear polarization and low sidelobe is presented. A new slot antenna is proposed as a radiating element based on a cavity-backed slot-coupled patch antenna. Using a...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-86225-2 |
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| _version_ | 1832594667549491200 |
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| author | Seyed Mohammad Hamidi Seyed Mohammad Javad Razavi Seyed Hossein Mohseni Armaki |
| author_facet | Seyed Mohammad Hamidi Seyed Mohammad Javad Razavi Seyed Hossein Mohseni Armaki |
| author_sort | Seyed Mohammad Hamidi |
| collection | DOAJ |
| description | Abstract In this paper, a multilayer monopulse antenna at Ku-Band with high efficiency, high power handling capability, high gain, 45° linear polarization and low sidelobe is presented. A new slot antenna is proposed as a radiating element based on a cavity-backed slot-coupled patch antenna. Using an enclosed cavity structure reduces coupling between antenna elements, thus increasing the antenna efficiency. The sub-array antenna has been designed to reduce the feed network complexity. A cavity power divider and feeding slots are inserted between the layers of the sub-array to compact it. An innovative feeding network has been designed with two-dimensional Chebyshev distribution. The simulated impedance bandwidth is 11%. The peak gain is 38.4 dBi and the sidelobe level of lower than 18 dB with a half-power beamwidth of approximately 2.4° for sum patterns at the center frequency and efficiency is more than 86% across the bandwidth. The maximum value of null depth for the difference patterns is − 38 dB. The radiation patterns have good symmetry in both E- and H-planes. The simulation results are compared with the results obtained from the built part of the antenna. the measurements results are in good agreement with the simulation. |
| format | Article |
| id | doaj-art-04485603383d4c7593a65d9225f311ee |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-04485603383d4c7593a65d9225f311ee2025-01-19T12:23:33ZengNature PortfolioScientific Reports2045-23222025-01-0115111810.1038/s41598-025-86225-2High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antennaSeyed Mohammad Hamidi0Seyed Mohammad Javad Razavi1Seyed Hossein Mohseni Armaki2Faculty of Electric and Computer, Malek Ashtar University of TechnologyFaculty of Electric and Computer, Malek Ashtar University of TechnologyFaculty of Electric and Computer, Malek Ashtar University of TechnologyAbstract In this paper, a multilayer monopulse antenna at Ku-Band with high efficiency, high power handling capability, high gain, 45° linear polarization and low sidelobe is presented. A new slot antenna is proposed as a radiating element based on a cavity-backed slot-coupled patch antenna. Using an enclosed cavity structure reduces coupling between antenna elements, thus increasing the antenna efficiency. The sub-array antenna has been designed to reduce the feed network complexity. A cavity power divider and feeding slots are inserted between the layers of the sub-array to compact it. An innovative feeding network has been designed with two-dimensional Chebyshev distribution. The simulated impedance bandwidth is 11%. The peak gain is 38.4 dBi and the sidelobe level of lower than 18 dB with a half-power beamwidth of approximately 2.4° for sum patterns at the center frequency and efficiency is more than 86% across the bandwidth. The maximum value of null depth for the difference patterns is − 38 dB. The radiation patterns have good symmetry in both E- and H-planes. The simulation results are compared with the results obtained from the built part of the antenna. the measurements results are in good agreement with the simulation.https://doi.org/10.1038/s41598-025-86225-2 |
| spellingShingle | Seyed Mohammad Hamidi Seyed Mohammad Javad Razavi Seyed Hossein Mohseni Armaki High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna Scientific Reports |
| title | High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna |
| title_full | High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna |
| title_fullStr | High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna |
| title_full_unstemmed | High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna |
| title_short | High efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna |
| title_sort | high efficiency high gain low side lobe level and slant polarization monopulse antenna using cavity backed slot coupled patch antenna |
| url | https://doi.org/10.1038/s41598-025-86225-2 |
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