# Horn Antenna Design – 2 MCQ’s

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This set of Antenna Multiple Choice Questions & Answers (MCQs) focuses on “Horn Antenna Design – 2″.

1. HPBW of H-plane horn is (in degrees) _____
a) 56λhh
b) 67λhh
c) λ56hh
d) λ67hh

2. HPBW of E-plane horn with aperture dimension 10 λ in degrees is ____
a) 56
b) 67
c) 5.6
d) 6.7

3. HPBW of E-plane horn is (in degrees) _____
a) 56λhe
b) 67λhe
c) λ56he
d) λ67he

4. HPBW of E-plane horn with aperture dimension 10 λ in degrees is ____
a) 56
b) 67
c) 5.6
d) 6.7

5. Physical area of a conical horn antenna of radius 5cm is____
a) 25π
b) 6.15π
c) 2.5π
d) 25

6. Flare angle (in degrees) of horn antenna when axial length 10λ and path difference δ = 0.3λ is given is _____
a) θ = 1.386
b) θ = 2.772
c) θ = 27.72
d) θ = 13.86

7. What is the physical area of the rectangular horn antenna with E-plane aperture 5 λ and H-plane aperture 4 λ?
a) 20λ2
b) 10λ2
c) 0.8
d) 9 λ

8. Flare angle of horn antenna when axial length l and path difference δ is given is _____
a) θ=2cos−1ll+δ
b) θ=cos−1ll+δ
c) θ=2cos−1ll−δ
d) θ=cos−1ll−δ

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