Rc. Baucke et al., FAR-FIELD TRANSFORMS FOR FINITE-ELEMENT FREQUENCY-DOMAIN SOLUTIONS, IEEE transactions on antennas and propagation, 41(4), 1993, pp. 511-514
Methods of calculating far-field quantities from a two-dimensional fin
ite element/absorbing boundary solution of unbounded RF electromagneti
c fields are presented here. Three different methods are developed and
compared in terms of accuracy, efficiency, and capabilities. The thre
e methods are: harmonic expansion, Green theorem integral, and volume
sources radiation integral.