Explore topic-wise MCQs in Antennas.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.

1.

Half-power beam width is also called as 6-db beam width.

A. True
B. False
Answer» C.
Discussion
2.

What happens to the beam-width of antenna if the frequency of operation is increased?

A. Beam-width will decrease
B. Beam-width will increase
C. Beam-width is independent of frequency
D. Beam width may increase or decrease
Answer» B. Beam-width will increase
Discussion
3.

Find the directivity when the half power beam widths are 45 and 60 in perpendicular planes.

A. 12.58
B. 17.98
C. 22.91
D. 15.28
Answer» E.
Discussion
4.

Beam width is the measure of directivity of antenna in terms of angles either radians or degrees.

A. True
B. False
Answer» B. False
Discussion
5.

What is the Beam area in radians when the HPBW in perpendicular planes are given by 60 , 30 ?

A. ( frac{ pi^2}{8} )
B. ( frac{ pi}{2} )
C. ( frac{ pi^2}{18} )
D. 2
Answer» D. 2
Discussion
6.

Beam area and directivity are related as _____

A. (D= frac{2 pi}{B} )
B. (D= frac{4 pi}{B} )
C. (D= frac{B}{2 pi} )
D. (D= frac{B}{4 pi} )
Answer» C. (D= frac{B}{2 pi} )
Discussion