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Antenna Arrays MCQ Questions And Answers - Antenna Theory

Antenna Arrays MCQs : This section focuses on the "Antenna Arrays" in Antenna Theory. These Multiple Choice Questions (MCQs) should be practiced to improve the Antenna Theory skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

An ___________ is a radiating system, which consists of individual radiators and elements.

A. wave propagation
B. antenna array
C. radiate
D. None of the above

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Question 2

Which are the advantages of using antenna arrays?

A. The signal strength increases
B. High directivity is obtained
C. Minor lobes are reduced much
D. All of the above

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Question 3

A Collinear array consists of two or more half-wave dipoles, which are placed end to end.

C. Can be true or false
D. Can not say

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Question 4

Which of the following is not types of arrays?

A. Collinear array
B. Parasitic array
C. Front fire array
D. Log-peroidic array

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Question 5

The frequency range in which the collinear array antennas operate is around __________.

A. 30 MHz to 300MHz
B. 30 MHz to 3GHz
C. 3 MHz to 3GHz
D. 30 MHz to 30GHz

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Question 6

The radiation pattern of this antenna is _______________.

A. uni-directional
B. directional
C. bi-directional
D. None of the above

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Question 7

A parasitic element is an element, which depends on other’s feed. 

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 8

Which of the following are the disadvantages of array antennas?

A. Resistive losses are increased
B. Mounting and maintenance is difficult
C. Huge external space is required
D. All of the above

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Question 9

The dipole that is connected to the feed is known as a?

A. Reflector
B. Driven element
C. Parasitic Elements
D. Director

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Question 10

In Yagi-Uda antenna, length of the reflector?

A. 0.458λ to 0.5λ
B. 0.45λ
C. 0.55λ to 0.58λ
D. 0.35λ

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