Field and Wave Electromagnetics 2nd Edition by David Cheng

Exercise 15

For a uniform linear array of 12 elements spaced /2 apart:
a) Sketch the normalized array pattern |A( )| in Eq. (11-89) versus .
b) Find the widths of the main beam at half-power points and between the first nulls when the array is operated in the broadside mode.
c) Repeat part (b) for an endfire operation.