Question

At high frequencies, diffraction does not depends on ___________

(a) Geometry of the object

(b) Distance between Tx and Rx

(c) Amplitude of incident wave

(d) Polarization of incident wave

This question was posed to me in an interview for job.

This is a very interesting question from Diffraction topic in portion Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer 1

The correct choice is (b) Distance between Tx and Rx

To explain: At high frequency, diffraction depends on the geometry of the object, as well as the amplitude, phase, and polarization of the incident wave at the point of diffraction. It gives rise to a bending of waves even when line of sight does not exist between transmitter and receiver.