Question

Which of the following equation gives the incremental phase shift of the phase array radar with d element spacing and scan angle θ?

(a) \(ᴪ=\frac{2π}{λ} dsinθ\)

(b) \(ᴪ=\frac{2π}{d} λsinθ\)

(c) \(ᴪ=\frac{π}{λ} dsinθ\)

(d) \(ᴪ=\frac{π}{d} λsinθ\)

The question was asked in a national level competition.

I need to ask this question from Phased Array topic in portion Phased, Adaptive and Binomial Arrays of Antennas

Answer 1

The correct choice is (a) \(ᴪ=\frac{2π}{λ} dsinθ\)

Easiest explanation: The incremental phase shift of the phase array radar with d element spacing and scan angle θ is given by \(ᴪ=\frac{2π}{λ} dsinθ\). The phase shifters are electronically tuned to adjust from 0 to 2π.