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Prateek Asked :

02-10-2021 Antennas

Q. In which of the following scanning the phase of the radiator is constant at one frequency?

A. Phase scanning
B. Frequency scanning
C. Both Phase and frequency scanning
D. Neither Frequency nor Phase scanning


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Dapzoi Verified
Commented on 2021-10-02 11:31:24 (IST)
Answer: B

Explanation: In frequency scanning, for one frequency all radiators will be in phase. As the frequency is changed then a corresponding phase shift occurs and the beam is scanned. In phase scanning the phase shifters are used and radiators have different phases.