Question

What is the polarization loss factor when a linear polarized antenna receives a circular polarized?

(a) 0.5

(b) 1

(c) 0

(d) 2

This question was posed to me in an online quiz.

This question is from Polarization Mismatch in division Radiation, Baluns & Polarization of Antennas

Answer 1

Right option is (a) 0.5

The best I can explain: Circular polarization is combination of two orthogonal linear polarized waves at 90° phase difference. The linear component just selects one in-phase component from this so ∅=45

⇨ PLF = cos^2∅.=1/2=0.5