Home / Practical Antennas – 1 – 3

Practical Antennas – 1 – 3

11. Which of the following improves antenna directivity ?

(a) Driven element
(b) Reflector element
(c) Director element
(d) Parasitic element

Answer
Answer : (d)

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

12. An antenna with unity gain.

(a) rhombic
(b) half-wave dipole
(c) isotropic
(d) whip

Answer
Answer : (c)

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

13. Discone radiation pattern is ……….. ?

(a) omnidirectional
(b) unidirectional
(c) bidirectional
(d) figure of eight

Answer
Answer : (a)

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

14. What is the theoretical gain of a Hertzian dipole ?

(a) 1.76 dB
(b) 2.15 dB
(c) 3 dB
(d) 0 dB

Answer
Answer : (a)

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

15. The current maximum in a Marconi antenna is found at :

(a) the base of the antenna
(b) the center of the antenna
(c) some point between the base and the center of the antenna
(d) the top of the antenna

Answer
Answer : (a)

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

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