Explore topic-wise MCQs in Antennas.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.

1.

Huygens principle in mathematical form is referred to as equivalence principle for aperture antennas.

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

The gain of the aperture antenna increases with square of the frequency.

A. True
B. False
Answer» B. False
Discussion
3.

Equivalence principle is mainly used for far filed analysis of the antenna in outer region.

A. True
B. False
Answer» B. False
Discussion
4.

Which of the following condition is true for the magnetic conductor equivalent?

A. Js=n×H=0;Ms=-n×E
B. Js=n×H;Ms=-n×E=0
C. Js=n×H≠0;Ms=-n×E
D. Js=n×H≠0;Ms=-n×E=0
Answer» C. Js=n×H≠0;Ms=-n×E
Discussion
5.

Which of the following condition is true for the electric conductor equivalent?

A. Js=n×H=0;Ms=-n×E
B. Js=n×H;Ms=-n×E=0
C. Js=n×H≠0;Ms=-n×E
D. Js=n×H≠0;Ms=-n×E=0
Answer» B. Js=n×H;Ms=-n×E=0
Discussion
6.

Equivalence Principle follows which f the following theorem?

A. Uniqueness Theorem
B. Poynting theorem
C. Friss Theorem
D. Gauss theorem
Answer» B. Poynting theorem
Discussion
7.

Which of the following principle is used for analysis of aperture antennas?

A. Equivalence principle
B. Friss Equation
C. Reflectivity
D. Diffraction
Answer» B. Friss Equation
Discussion
8.

Which of the following does not belong to the aperture antenna?

A. Half-Dipole
B. Horn Antenna
C. Waveguide antenna
D. Slot antenna
Answer» B. Horn Antenna
Discussion
9.

At which of the following frequencies aperture antennas are operated?

A. UHF and EHF
B. MF and HF
C. HF and UHF
D. LF and MF
Answer» B. MF and HF
Discussion
10.

For aperture antenna to be efficient and have high directivity, its area should be ____________

A. ≥ λ2
B. ≥ 1/λ
C. ≤ λ2
D. ≤ λ
Answer» B. ≥ 1/λ
Discussion