Chapter 9, Problem 4P

Determine the following:

1. (a) The direction of maximum radiation.
2. (b) Directivity.
3. (c) Beam solid angle.
4. (d) Half-power beamwidth in the x–z plane.

for an antenna whose normalized radiation intensity is given by

$F(\theta ,\varphi )=\{\begin{array}{l}1\text{for}\text{0}\le \theta \le \text{60}°\text{and}\text{0}\le \varphi \le \text{2}\pi \\ \text{0}\text{elsewhere}\text{.}\end{array}$

Suggestion: Sketch the pattern prior to calculating the desired quantities.