Question

Total resultant field obtained by the antenna array is given by which of following?

(a) Vector superposition of individual field from the element

(b) Maximum field from individual sources in the array

(c) Minimum field from individual sources in the array

(d) Field from the individual source

I had been asked this question in a job interview.

This interesting question is from Introduction in section Antenna Array of Antennas

Answer 1

The correct choice is (a) Vector superposition of individual field from the element

Best explanation: The total resultant field is obtained by adding all the fields obtained by the individual sources in the array. An Array containing N elements has the resultant field equal to the vector superposition of individual field from the elements.