Question

What is the polarization loss factor when two antennas are rotated by an angle 30°?

(a) 0.75

(b) 0.25

(c) 1

(d) 0

This question was addressed to me by my college professor while I was bunking the class.

This intriguing question originated from Polarization Mismatch in chapter Radiation, Baluns & Polarization of Antennas

Answer 1

Correct choice is (a) 0.75

To explain I would say: The polarization loss factor due to mismatch if the two linear polarized antennas are rotated by an angle ∅ is given by PLF = cos^2∅

⇨ PLF = cos^230=\(\frac{3}{4}=0.75\)