Question: ej(et-Br) The vector potential of an antenna is given by A= A, cos 0- 4r - (Weber / m), where A = 14, I,

ej(et-Br) The vector potential of an antenna is given by A= A,

ej(et-Br) The vector potential of an antenna is given by A= A, cos 0- 4r - (Weber / m), where A = 14, I, is the peak value of the antenna input sinusoidal current, and B=. Find (a) the electric field intensity E for far fields, (b) the radiation resistance, and (c) the directivity of this antenna.

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