AN/SPY-1

AN-SPY-1 (big: 59 kByte)

AN-SPY-1 (big: 42 kByte)

   The AN/SPY-1 is the electronically scanned fixed-array radar for the US Navy's Aegis fleet air defense system. It operates in the E/F- Band, and the output is in several megawatts. The transmitter serves several parallel channels simultaneously.

The four fixed and phase-scanned arrays of AN/SPY-1 send out beams of electromagnetic energy in all directions simultaneously, continuously providing a search and tracking capability for hundreds of target at the same time. Each array has 4,100 discrete elements, and measures 3.65 x 3.65 m. These elements are controlled by AN/UYK-7 digital computers to produce and steer multiple radar beams for target search, detection and tracking. The SPY-1 also tracks the ship's own missiles fired against hostile targets. In addition to search and track, it provides midcourse guidance to the Standard missile (SM-2).

The Aegis system has been fully operational since 1983 and advanced versions of the radar have also been developed.

Specifications

frequency: E/F-Band
pulse repetition time (PRT):  
pulse repetition frequency (PRF):  
pulsewidth (PW):  
receive time:  
dead time:  
peak power: 4 to 6 megawatts
average power: 58 kilowatts
displayed range:  
range resolution:  
beamwidth: 1.7 degrees
hits per scan:  
antenna rotation: none