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What is the physical area of the rectangular horn antenna with E-plane aperture 5 λ and H-plane aperture 4 λ?

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What is the physical area of the rectangular horn antenna with E-plane aperture 5 λ and H-plane aperture 4 λ?

(a) 20λ^2

(b) 10λ^2

(c) 0.8

(d) 9 λ

I got this question in an international level competition.

My question comes from Design in division Horn Antenna of Antennas

1 Answer

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Best answer
Correct option is (a) 20λ^2

To elaborate: The physical area of rectangular horn is A = hh×he=5λ×4λ=20 λ^2

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