Kirchhoff theory: Scalar, vector, or dyadic?

Chen-To Tai
1972 IRE Transactions on Antennas and Propagation  
The superior nature of the Franz formula as compared to that of Stratton and Chu is pointed out. A connection between the two distinct formulas is shown. The compactness of the dyadic version of Franz' formula is emphasized.
doi:10.1109/tap.1972.1140146 fatcat:hbwlhvju3bewdjy5cjgaoq7b2y