Electromagnetics-Antennas [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 1 - 5 of 20

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Question 1

Antennas
Gain and Directivity

Appeared in Year: 2017 (UGC-NET)

Question

MCQ▾

Patch is a: (November paper 2)

Choices

Choice (4)Response

a.

Low gain wide band antenna

b.

High gain wide band antenna

c.

High gain narrow band antenna

d.

Low gain narrow band antenna

Question 2

Antennas
Gain and Directivity

Appeared in Year: 2017 (UGC-NET)

Question

MCQ▾

Helical antennas are often used for satellite tracking in VHF range because of: (November paper 2)

Choices

Choice (4)Response

a.

Ionospheric refraction

b.

Super - refraction

c.

Troposcatter

d.

Faraday effect

Question 3

Antennas
Gain and Directivity

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

The loading is sometimes used with an antenna in order to increase the: (July)

Choices

Choice (4)Response

a.

Bandwidth

b.

Effective height

c.

Input capacitance

d.

Beam width

Question 4

Antennas
Gain and Directivity

Appeared in Year: 2018 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following lists: (July)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Effective Area

(i)

(B)

Directivity

(ii)

(C)

Directive Gain

(iii)

(D)

Power Gain

(iv)

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iii)
  • (i)
  • (iv)

b.

  • (ii)
  • (iv)
  • (iii)
  • (i)

c.

  • (i)
  • (ii)
  • (iv)
  • (iii)

d.

  • (iv)
  • (iii)
  • (ii)
  • (i)

Question 5

Antennas
Gain and Directivity

Appeared in Year: 2016 (UGC-NET)

Question

MCQ▾

For a matched junction, scattering parameters are given values, which one of the following is true?

Choices

Choice (4)Response

a.

b.

c.

d.

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