Practical Antennas – 1 – 1

1. Which is a non-resonant antenna ?

(a) rhombic antenna
(b) folded dipole
(c) end-fire array
(d) yagi-uda antenna

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

2. Gain of a half-wave dipole antenna over isotropic.

(a) 2.15 dB
(b) 1.76 dB
(c) 1 dB
(d) 0 dB

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

3. What is the polarization of a discone antenna ?

(a) vertical
(b) horizontal
(c) circular
(d) spiral

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

4. What is the gain of the Hertzian dipole over isotropic antenna ?

(a) 1.64 dB
(b) 2.15 dB
(c) 1.76 dB
(d) 1.55 dB

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

5. Which antenna radiates an omnidirectional pattern in the horizontal plane with vertical polarization ?

(a) marconi antenna
(b) discone antenna
(c) horn antenna
(d) helical antenna

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

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