B.Radiation characteristics At a sufficiently large distance from the sphere,the angular distribution of the radiation field is givern by the series of the associated Legendre polynomials E。=(u/e)eR/R H。=(e/4)E *空a-0 n(+1) [P(cos0)]sin0d0=- 2n+11 and 4πE2 G()= inadoie ∫P,1(cos0P4((o)6d0=0 for≠. |∑An(-1)+/P1(cos0)12 21A n(n+1) 2n+1B. Radiation characteristics At a sufficiently large distance from the sphere, the angular distribution of the radiation field is givern by the series of the associated Legendre polynomials