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

In which of the following a single radiator source is used to feed antenna with different phase shifts? Correct Answer Phased array

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.

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