Preliminary simulations of a 1.8-m reflectarray antenna in a geostationary satellite to generate multi-spot coverage
| Autor: | Martínez de Rioja del Nido, José Daniel, Martínez de Rioja del Nido, Eduardo María, Encinar Garcinuño, José Antonio |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Proceedings of 13th European Conference on Antennas and Propagation (EuCAP) 2019 | 13th European Conference on Antennas and Propagation (EuCAP) 2019 | 31/03/2019-05/04/2019 | Cracovia (Polonia) Archivo Digital UPM Universidad Politécnica de Madrid |
| Popis: | This contribution presents preliminary results of a 1.8-m reflectarray antenna proposed to generate a complete multi-spot coverage for transmission in broadband satellite communications in Ka-band. The antenna is designed according to a recently validated design method of reflectarrays which allows to produce four adjacent beams per feed by discriminating simultaneously in frequency and polarization. The simulations consider 27 dual-polarized feeds to illuminate the reflectarray, so the 1.8-m reflectarray is expected to generate 108 beams separated 0.56 degree at two frequencies and two polarizations. The concept enables a reduction in the number of antennas and feeds required on board geostationary communication satellites to provide multi-spot coverages in Ka-band. |
| Databáze: | OpenAIRE |
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