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

(a) 0.5

(b) 1

(c) 0

(d) 2

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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

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