EA7401D FMCW Antenna
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The EA7401D is a dual antenna designed for FMCW radar system and also for Surface Movement Radar and space diversity sea surveillance. The antenna consists of two linear arrays stacked on top of each other. Both arrays have inverse cosec2 elevation radiation pattern to -40°, providing excellent coverage of sea or airport surface. Operating at X-band, this antenna uses techniques developed from cellular radio technology to provide a unique combination of RF performance, compact size and low weight. The antenna provides azimuth resolution of about 0.32°, whilst being able to handle continuous power without loss of performance. Unlike slotted waveguide antennas, the EA7401D antenna azimuth beam pointing angle is independent of RF frequency, therefore this antenna does not suffer from beam squint with change in frequency, making it ideal for FMCW radar systems. The EA7401D antenna is available with either fixed circular or fixed horizontal polarisation. Electrical Specification Specifications are subject to change as part of Easat's ongoing improvement policy. Customers are advised to confirm specification prior to contract Easat Radar Systems Ltd, Unit I Jubilee Lite, Ivy House Road, Han ley, Stoke-On-Trent, STI 3NW, England Telephone: +44 (0) 1782 208028 Fax: +44 (0) 1782 208060 Em a il: inIo@easat.com Website: www.easat.com