Determine the
(a) Direction of maximum radiation,
(b) Directivity,
(c) Beam solid angle, and
(d) Half-power beam width in the x€“z plane for an antenna whose normalized radiation intensity is given by

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

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for 0 <0< 60°and 0 << 2n, 1, F(0,4) 0, elsewhere.