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NeXtRAD antenna design: X-Band dual polarised conical horn antenna
The purpose of the dissertation is to investigate a design and implementation of a dual polarised X-band antenna. The desired specifications include a centre frequency of 8.5 GHzand a 10_ azimuth-half power beam width in both vertical and horizontal polarisations. Other requirements include peak pow...
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2016
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| _version_ | 1867613297789894656 |
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| access_status_str | Open Access |
| author | Cheng, Po-Kai |
| author2 | Murgu, Alexandru |
| author_browse | Cheng, Po-Kai Murgu, Alexandru |
| author_facet | Murgu, Alexandru Cheng, Po-Kai |
| author_sort | Cheng, Po-Kai |
| collection | Thesis |
| description | The purpose of the dissertation is to investigate a design and implementation of a dual polarised X-band antenna. The desired specifications include a centre frequency of 8.5 GHzand a 10_ azimuth-half power beam width in both vertical and horizontal polarisations. Other requirements include peak power handling of 400 W over a 50 MHz instantaneous bandwidth and the facility to be mounted on a standard tripod. The dissertation begins by introducing NeXtRAD, a radar project developed jointly by UCL and UCT, outlines the objective of the study and lists all the requirements to be achieved. After considering several types of antenna, horn antenna has been the most practical when trying to meet project requirements. Two of the horn antennas examined here have been the square and conical horn antennas using square and circular waveguides respectively. Each of these waveguides support dual polarisation as they provide a symmetrical structure in two orthogonal planes of polarisation. The square waveguide is flared into a square horn whereas the circular waveguide is flared into a conical horn to increase the gain and reduce the half-power beamwidth to the required angle. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/20511 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:54.099Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/20511 NeXtRAD antenna design: X-Band dual polarised conical horn antenna Cheng, Po-Kai Murgu, Alexandru Downing, B J Inggs, Michael Electrical Engineering The purpose of the dissertation is to investigate a design and implementation of a dual polarised X-band antenna. The desired specifications include a centre frequency of 8.5 GHzand a 10_ azimuth-half power beam width in both vertical and horizontal polarisations. Other requirements include peak power handling of 400 W over a 50 MHz instantaneous bandwidth and the facility to be mounted on a standard tripod. The dissertation begins by introducing NeXtRAD, a radar project developed jointly by UCL and UCT, outlines the objective of the study and lists all the requirements to be achieved. After considering several types of antenna, horn antenna has been the most practical when trying to meet project requirements. Two of the horn antennas examined here have been the square and conical horn antennas using square and circular waveguides respectively. Each of these waveguides support dual polarisation as they provide a symmetrical structure in two orthogonal planes of polarisation. The square waveguide is flared into a square horn whereas the circular waveguide is flared into a conical horn to increase the gain and reduce the half-power beamwidth to the required angle. 2016-07-20T11:54:48Z 2016-07-20T11:54:48Z 2016 Master Thesis Masters MSc http://hdl.handle.net/11427/20511 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Electrical Engineering Cheng, Po-Kai NeXtRAD antenna design: X-Band dual polarised conical horn antenna |
| thesis_degree_str | Master's |
| title | NeXtRAD antenna design: X-Band dual polarised conical horn antenna |
| title_full | NeXtRAD antenna design: X-Band dual polarised conical horn antenna |
| title_fullStr | NeXtRAD antenna design: X-Band dual polarised conical horn antenna |
| title_full_unstemmed | NeXtRAD antenna design: X-Band dual polarised conical horn antenna |
| title_short | NeXtRAD antenna design: X-Band dual polarised conical horn antenna |
| title_sort | nextrad antenna design x band dual polarised conical horn antenna |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/20511 |
| work_keys_str_mv | AT chengpokai nextradantennadesignxbanddualpolarisedconicalhornantenna |