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Prateek Asked :

02-10-2021 Antennas

Q. In which of the following a single radiator source is used to feed antenna with different phase shifts?

A. Phased array
B. FMCW radar
C. Monopulse radar
D. CW radar


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Dapzoi Verified
Commented on 2021-10-02 11:29:26 (IST)
Answer: A

Explanation: In phased array radar a single radiator is used to feed antenna with different phase shifts and thus the desired beam width is obtained. The beam of phased array radar is a synthesis of the multiple antennas used at different phase shifts. In FMCW, Monopulse, CW radar multiple antennas are not usually used at different phase shifts.