Radiation Pattern for 4-Isotropic Elements Online Exam Quiz
Radiation Pattern for 4-Isotropic Elements GK Quiz. Question and Answers related to Radiation Pattern for 4-Isotropic Elements. MCQ (Multiple Choice Questions with answers about Radiation Pattern for 4-Isotropic Elements
A 4-isotropic element end-fire array separated by a ?/4 distance has first null occurring at __
Options
A : 60
B : 30
C : 90
D : 150
Height criteria required for mounting AUT under elevated range test is __
Options
A : hr ? 4D
B : hr ? 4D
C : hr ? 2D
D : hr ? 2D
The direction of the first minor lobe of 4 element isotropic broadside array separated by ?/2 is ___
Options
A : 41.4?
B : 30?
C : 60?
D : 90?
The necessary condition for maximum of the second side lobe of n element array is __
Options
A : \frac{N?}{2}=?\frac{5?}{2}
B : \frac{N?}{2}=?\frac{3?}{2}
C : \frac{N?}{2}=?\frac{?}{2}
D : \frac{N?}{2}=?\frac{4?}{2}
What is the direction of first null of broadside 4-element isotropic antenna having a separation of ?/2?
Options
A : 60?
B : 30?
C : 180?
D : 0?
What is the direction of first null of broadside 4-element isotropic antenna having a separation of ?/4?
Options
A : 0
B : 60
C : 30
D : 120
What is the frequency of antennas used for Reflection range?
Options
A : 300MHz to 16GHz
B : 3 MHz to 16MHz
C : 16MHz to 300MHz
D : 3GHz to 30GHz
Which of the following antenna range is used for small antennas?
Options
A : Indoor ranges
B : Outdoor ranges
C : Reflection range
D : Slant range
Which of the following doesn't come under indoor ranges?
Options
A : Slant range
B : Anechoic chamber
C : Tampered chamber
D : Compact ranges
Which of the following doesn't come under outdoor ranges?
Options
A : Reflection range
B : Anechoic chamber
C : Slant range
D : Elevation range