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The radiation intensity of an antenna is U=Um cos where Um is the maximum radiation intensity....

The radiation intensity of an antenna is U=Um cos where Um is the maximum radiation intensity. The radiation intensity U has a value only in upper hemisphere (0 ≤  ≤ /2 and 0 ≤  ≤ 2) and is zero in the lower hemisphere. 1. Express the radiation pattern in a polar plot 2. On the same diagram indicate the half power points 3. Calculate the half power beamwidth 4. Calculate the directivity in dBi.

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Answer #1

U n 60 124o mam Sine: rn

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Answer #2
Directivity is 4 dB
source: Personally calculate it
answered by: anonymous
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