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For the ideal dipole of a z directed current element I z in free space and located at the origin of a spherical coordinate system a Find the complex Poynting vector expression in the general

For the ideal dipole of a z-directed current element I Δz in free space and located at the origin of a spherical coordinate system: (a) Find the complex Poynting vector “expression” in the general case, where r can be in the near-field region. Use the fields of (2-73). (b) Then find the expression for the time-average power flowing out through a sphere of radius r enclosing the current element. Your answer will be that of (2-77). Why? (c) Use the results from (a) to derive (2-79).

 

 

 

Jun 22 2020 View more View Less

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