Flat Array Antennas for Ku-Band Mobile Satellite Terminals
This work presents the advances in the development of two innovative flat array antennas for Ku-band mobile satellite terminals. The first antenna is specifically conceived for double-deck trains to allow a bi-directional high data rate satellite link. The available circular surface (diameter 80 cm)...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2009/836074 |
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| author | Roberto Vincenti Gatti Luca Marcaccioli Elisa Sbarra Roberto Sorrentino |
| author_facet | Roberto Vincenti Gatti Luca Marcaccioli Elisa Sbarra Roberto Sorrentino |
| author_sort | Roberto Vincenti Gatti |
| collection | DOAJ |
| description | This work presents the advances in the development of two innovative flat array antennas for Ku-band mobile satellite terminals. The first antenna is specifically conceived for double-deck trains to allow a bi-directional high data rate satellite link. The available circular surface (diameter 80 cm) integrates both a transmitting and a receiving section, operating in orthogonal linear polarizations. The TX frequency range is fully covered while the RX bandwidth is around 1 GHz arbitrarily allocated on the DVB range depending on requirements. The beam is steered in elevation through a phased array architecture not employing costly phase shifters, while the steering in azimuth is mechanical. Active BFNs allow excellent performance in terms of EIRP and G/T, maintaining extremely low profile. High antenna efficiency and low fabrication cost are ensured by the employment of innovative SIW (Substrate Integrated Waveguide) structures. The second antenna, receiving-only, is designed for radio/video streaming services in mobile environment. Full DVB coverage is achieved thanks to cavity-backed patches operating in double linear polarization. Two independent broadband active BFNs allow simultaneous reception of both polarizations with full tracking capabilities and a squintless beam steering from 20∘ to 60∘ in elevation. A minimum gain of 20 dBi and G/T >−3 dB/∘K are achieved, while maintaining extremely compact size and flat profile. In the design of both antennas fabrication cost is considered as a driving factor, yet providing high performance with a flat profile and thus resulting in a great commercial potentiality. |
| format | Article |
| id | doaj-art-7820b88e5a024dcfbd894020d0ef9ac2 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-7820b88e5a024dcfbd894020d0ef9ac22025-08-20T03:35:11ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772009-01-01200910.1155/2009/836074836074Flat Array Antennas for Ku-Band Mobile Satellite TerminalsRoberto Vincenti Gatti0Luca Marcaccioli1Elisa Sbarra2Roberto Sorrentino3RF Microtech srl, a spin-off of the University of Perugia c/o DIEI, via G. Duranti 93, 06125 Perugia, ItalyRF Microtech srl, a spin-off of the University of Perugia c/o DIEI, via G. Duranti 93, 06125 Perugia, ItalyRF Microtech srl, a spin-off of the University of Perugia c/o DIEI, via G. Duranti 93, 06125 Perugia, ItalyRF Microtech srl, a spin-off of the University of Perugia c/o DIEI, via G. Duranti 93, 06125 Perugia, ItalyThis work presents the advances in the development of two innovative flat array antennas for Ku-band mobile satellite terminals. The first antenna is specifically conceived for double-deck trains to allow a bi-directional high data rate satellite link. The available circular surface (diameter 80 cm) integrates both a transmitting and a receiving section, operating in orthogonal linear polarizations. The TX frequency range is fully covered while the RX bandwidth is around 1 GHz arbitrarily allocated on the DVB range depending on requirements. The beam is steered in elevation through a phased array architecture not employing costly phase shifters, while the steering in azimuth is mechanical. Active BFNs allow excellent performance in terms of EIRP and G/T, maintaining extremely low profile. High antenna efficiency and low fabrication cost are ensured by the employment of innovative SIW (Substrate Integrated Waveguide) structures. The second antenna, receiving-only, is designed for radio/video streaming services in mobile environment. Full DVB coverage is achieved thanks to cavity-backed patches operating in double linear polarization. Two independent broadband active BFNs allow simultaneous reception of both polarizations with full tracking capabilities and a squintless beam steering from 20∘ to 60∘ in elevation. A minimum gain of 20 dBi and G/T >−3 dB/∘K are achieved, while maintaining extremely compact size and flat profile. In the design of both antennas fabrication cost is considered as a driving factor, yet providing high performance with a flat profile and thus resulting in a great commercial potentiality.http://dx.doi.org/10.1155/2009/836074 |
| spellingShingle | Roberto Vincenti Gatti Luca Marcaccioli Elisa Sbarra Roberto Sorrentino Flat Array Antennas for Ku-Band Mobile Satellite Terminals International Journal of Antennas and Propagation |
| title | Flat Array Antennas for Ku-Band Mobile Satellite Terminals |
| title_full | Flat Array Antennas for Ku-Band Mobile Satellite Terminals |
| title_fullStr | Flat Array Antennas for Ku-Band Mobile Satellite Terminals |
| title_full_unstemmed | Flat Array Antennas for Ku-Band Mobile Satellite Terminals |
| title_short | Flat Array Antennas for Ku-Band Mobile Satellite Terminals |
| title_sort | flat array antennas for ku band mobile satellite terminals |
| url | http://dx.doi.org/10.1155/2009/836074 |
| work_keys_str_mv | AT robertovincentigatti flatarrayantennasforkubandmobilesatelliteterminals AT lucamarcaccioli flatarrayantennasforkubandmobilesatelliteterminals AT elisasbarra flatarrayantennasforkubandmobilesatelliteterminals AT robertosorrentino flatarrayantennasforkubandmobilesatelliteterminals |