The radiation intensity of an antenna is given by U (0. 4) = cos e sin...

 

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The radiation intensity of an antenna is given by U (0. 4) = cos e sin for 0 <0 <7/2 and 0< < 27 (i.e., in the upper half-space). It is zero in the lower half-space. Find the (a) exact directivity (dimensionless and in dB) (b) elevation plane half-power beamwidth (in degrees) The radiation intensity of an antenna is given by U (0. 4) = cos e sin for 0 <0 <7/2 and 0< < 27 (i.e., in the upper half-space). It is zero in the lower half-space. Find the (a) exact directivity (dimensionless and in dB) (b) elevation plane half-power beamwidth (in degrees)