Dual Polarized Reflectarray Transmit Antenna for Operation in Ku- and Ka-Bands With Independent Feeds
A reflectarray antenna capable of operating independently in the transmit frequencies (from a satellite) in Ku-band (11–13 GHz) and Ka-band (19–20 GHz) has been proposed and demonstrated. To prove that independent beams can be optimized in each frequency band using separate feeds, a 25-cm demonstrat...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión borrador |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universidad de Jaén |
| Repositorio: | RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén |
| OAI Identifier: | oai:ruja.ujaen.es:10953/7116 |
| Acceso en línea: | https://hdl.handle.net/10953/7116 |
| Access Level: | acceso abierto |
| Palabra clave: | Communications satellites, coupled dipoles, dual frequency, dual polarization, reflectarrays 51 |
| Sumario: | A reflectarray antenna capable of operating independently in the transmit frequencies (from a satellite) in Ku-band (11–13 GHz) and Ka-band (19–20 GHz) has been proposed and demonstrated. To prove that independent beams can be optimized in each frequency band using separate feeds, a 25-cm demonstrator that generates a focused beam in dual polarization (linear or circular) has been designed, manufactured, and tested. The reflectarray cells comprise two stacked sets of coupled parallel dipoles for each polarization, which permits an independent optimization of the phase for each frequency and polarization. The simulated and measured radiation patterns for both copolar and crosspolar components are in good agreement in Ku- and Ka-bands. |
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