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EMS Technologies Delivers First Two Of Three Antennas For Inmarsat 4
Montreal - Apr 30, 2003 EMS Technologies, Inc. announced Monday that the Space & Technology/Montreal division of EMS Technologies Canada, Ltd., has recently delivered the first two of three Inmarsat-4 L-Band Antenna Feeds to Astrium Limited in Portsmouth, England. These antenna feed arrays are designed, manufactured and tested by EMS Space & Technology/Montreal for the Inmarsat-4 program. The last antenna feed is scheduled for delivery at the end of April. The Inmarsat-4 antennas are highly complex, PIM-free, 120-element, combined transmit/receive L-Band arrays. PIM (Passive Intermodulation) is a significant technical issue on any high-power satellite, particularly those that provide mobile satellite services, and the reduction and elimination of PIM is among EMS's core competencies. The Inmarsat 4 Antennas have been designed to support high-speed (432 kbit/s) mobile Internet access, video-on-demand, video-conferencing, fax and e-mail for companies across the Americas, Europe, Africa and Asia through the INMARSAT Broadband Global Area Network (B-GAN) program. EMS's multi-element cup-helix L-Band antenna feeds are considered to be one of the most challenging subsystems of the INMARSAT B-GAN program. "EMS has a long heritage in high-performance multi-element antenna feeds for mobile satellite communications. This heritage was a key factor in the selection of EMS to supply these critical spacecraft components," said Dr. Gerry Bush, president, EMS's Space & Technology/Montreal. Inmarsat owns and operates a global satellite network, has operating licenses in 177 countries and is used by a worldwide group of service providers, together offering a comprehensive range of mobile communication service in the air, on land and at sea. In April 1999, Inmarsat changed from being an intergovernmental organization to a private limited company registered in the UK. Inmarsat currently has over 197,000 users serviced by around 200 Inmarsat service providers in more than 80 countries. Astrium is a joint company currently owned 75 per cent by EADS, European Aeronautic Defence and Space Company, and 25 per cent by BAE SYSTEMS. EMS Technologies, Inc. is a leading innovator in the design and manufacture of wireless, satellite and defense solutions. The Company is headquartered in Atlanta, and employs 1,700 people worldwide. Community Email This Article Comment On This Article Related Links EMS Technologies SpaceDaily Search SpaceDaily Subscribe To SpaceDaily Express Space Technology News - Applications and Research
Industry Team Achieve New Communications Technology With AESA Radars
Baltimore MD (SPX) Jan 12, 2006A team comprised of three leading US aerospace and defense contractors has demonstrated an innovative technological use of active electronically scanned array (AESA) radars for high-bandwidth communications. |
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