Question

The total pattern function for rectangular aperture f(x, y) if f(x) and f(y) are separable is given by ____

(a) f(x, y)=f(x) f(y)

(b) f(x, y)=f(x)+f(y)

(c) f(x, y)=f(x)/f(y)

(d) f(x, y)=f(x)-f(y)

The question was posed to me during an online exam.

I would like to ask this question from Radiation from Rectangular Aperture topic in division Aperture Antenna of Antennas

Answer 1

Correct choice is (a) f(x, y)=f(x) f(y)

The explanation is: The radiation pattern for the rectangular aperture is likely relatable to the line source distributions. If the functions f(x) and f(y) are separable, then total pattern will be the product of the two functions. f(x, y)=f(x)f(y).