Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case
This paper presents a formulation for shaping the main reflector of an axis-symmetric dual-reflector antenna designed to offer an omnidirectional coverage with an arbitrary radiation pattern in the vertical plane. The subreflector is generated by an axis-displaced conic, and the main reflector is sh...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2012/326925 |
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| _version_ | 1832563574390652928 |
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| author | José R. Bergmann Fernando J. S. Moreira |
| author_facet | José R. Bergmann Fernando J. S. Moreira |
| author_sort | José R. Bergmann |
| collection | DOAJ |
| description | This paper presents a formulation for shaping the main reflector of an axis-symmetric dual-reflector antenna designed to offer an omnidirectional coverage with an arbitrary radiation pattern in the vertical plane. The subreflector is generated by an axis-displaced conic, and the main reflector is shaped to achieve a prescribed far-field radiation pattern. The procedure is based on geometrical optics (GO) principles. Two distinct far-field ray structures are explored and their limitations are identified. The GO shaping results are validated by analysis provided by the accurate method of moments technique. |
| format | Article |
| id | doaj-art-871a7d3ec63d48d187213d5aec89144f |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-871a7d3ec63d48d187213d5aec89144f2025-02-03T01:13:14ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772012-01-01201210.1155/2012/326925326925Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC CaseJosé R. Bergmann0Fernando J. S. Moreira1CETUC—Center for Telecommunications Studies, Catholic University of Rio de Janeiro, 22453-900 Rio de Janeiro, RJ, BrazilDepartment of Electronics Engineering, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, BrazilThis paper presents a formulation for shaping the main reflector of an axis-symmetric dual-reflector antenna designed to offer an omnidirectional coverage with an arbitrary radiation pattern in the vertical plane. The subreflector is generated by an axis-displaced conic, and the main reflector is shaped to achieve a prescribed far-field radiation pattern. The procedure is based on geometrical optics (GO) principles. Two distinct far-field ray structures are explored and their limitations are identified. The GO shaping results are validated by analysis provided by the accurate method of moments technique.http://dx.doi.org/10.1155/2012/326925 |
| spellingShingle | José R. Bergmann Fernando J. S. Moreira Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case International Journal of Antennas and Propagation |
| title | Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case |
| title_full | Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case |
| title_fullStr | Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case |
| title_full_unstemmed | Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case |
| title_short | Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case |
| title_sort | omnidirectional dual reflector antenna with go shaped main reflector for pattern control in the elevation plane oadc case |
| url | http://dx.doi.org/10.1155/2012/326925 |
| work_keys_str_mv | AT joserbergmann omnidirectionaldualreflectorantennawithgoshapedmainreflectorforpatterncontrolintheelevationplaneoadccase AT fernandojsmoreira omnidirectionaldualreflectorantennawithgoshapedmainreflectorforpatterncontrolintheelevationplaneoadccase |