Electronically Scanned Arrays Market Analysis
The concept of an electronically scanned antenna is not new . Early uses of this technology started in the 1960s with warning radars , which were used to detect ballistic missile attacks extensively . The U . S . Navy ' s SPY-1 Aegis radar is superlatively known for its electronically steered antenna design . It was established during the 1970 ’ s to protect carrier battle teams against saturation attacks by Soviet Union cruise missiles .
In theory , an electronically scanned array commonly means a phased array , i . e . an array of antennas that produce radio wave beams and rays . Electronically , the emitted waves are steered in the desired direction to a specific point without physically moving the antennas . Electronically scanned arrays must be installed properly and arranged precisely to get appropriate results during real time operations . In an array antenna , the transmitter transmits a radio frequency current , which is then fed to each antenna with the correct phase relationship so as to add radio waves to increase radiations in the exact location and direction , and cancel radiations in undesired directions . In the phased array system , current from the transmitter is transmitted to the antennas through electronic devices called phase shifters , which in turn are controlled by a computer system . This computer system can effectively alter the phase electronically and hence , steer the radio wave beams to the desired location .
Request Report Sample @ http :// www . futuremarketinsights . com / reports / sample / rep-gb-2901 Electronically scanned arrays were initially used in defense radar systems to scan radar beams and locate and detect planes and missiles in the sky . These systems are still effectively used by the defense industry for detection and location of foreign threats in air , water or land – so corrective action may be taken as soon as possible .
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