N-element Linear Array Online Exam Quiz
N-element Linear Array GK Quiz. Question and Answers related to N-element Linear Array. MCQ (Multiple Choice Questions with answers about N-element Linear Array
All the elements must be identical to apply pattern multiplication principle.
Options
A : TRUE
B : FALSE
C : -
D : -
Condition for the half power width of the Array factor is given by ___
Options
A : \frac{N?}{2}=?1.391
B : \frac{N?}{2}=?3
C : \frac{N?}{2}=?0.5
D : \frac{N?}{2}=?1
Find the Nulls of the 8-element array in which elements are separated by ?/4 and phase difference is 0?
Options
A : ?_n=cos^{-1}?(\left[?\frac{n}{2}\right])
B : ?_n=cos^{-1}?(\left[?\frac{n}{4}\right])
C : ?_n=sin^{-1}?(\left[?\frac{n}{2}\right])
D : ?_n=sin^{-1}?(\left[?\frac{n}{4}\right])
Find the Nulls of the N-element array in which elements are separated by ?/4 and phase difference is 0?
Options
A : ?_n=cos^{-1}?(\left[?\frac{4n}{N}\right])
B : ?_n=cos^{-1}?(\left[?\frac{2n}{N}\right])
C : ?_n=sin?(\left[?\frac{4n}{N}\right])
D : ?_n=sin^{-1}?(\left[?\frac{4n}{N}\right])
Pattern multiplication is the multiplication of single array radiation pattern with ___
Options
A : Array Factor
B : Beamwidth
C : Total Field
D : Directivity
The maximum of the first minor lobe of array factor occurs at 13.46 dB down the maximum major lobe.
Options
A : TRUE
B : FALSE
C : -
D : -
The radiating pattern of single element multiplied by the array factor simply gives the ___
Options
A : Pattern multiplication
B : Normalized array factor
C : Beamwidth of the array
D : Field strength of the array
Which of the following expression represents the pattern multiplication?
Options
A : Etotal=E? ? Array Factor
B : Etotal=E? ? Directivity
C : Etotal=Eall elements ? Array Factor
D : Etotal=E? ? Beamwidth
Which of the following statements is false?
Options
A : Pattern multiplications gives use the radiation pattern of the array
B : All elements must be identical to apply pattern multiplication principle
C : The radiation pattern of the single array antenna is multiplied by the antenna factor then is pattern multiplication
D : Pattern multiplication is also applicable for array with different unequal elements
Array of N-Isotropic Sources more Online Exam Quiz
Radiation Pattern for 4-Isotropic Elements