A formulation based on Lagrangian optimization and spheroidal vector wave functions is presented for the vector electromagnetic inverse source problem of deducing a time-harmonic current distribution that is confined within a spheroidal volume, that generates a prescribed radiation field, and that is subject to given constraints on the source functional energy, which characterizes antenna current level, and the source's reactive power, which models antenna resonance matching. The paper includes computer simulation results illustrating the derived inverse theory.
- inverse source problem
- minimum energy solution
- reactive power
- spheroidal wavefunctions
Stén, J. C-E., & Marengo, E. A. (2008). Inverse source problem in the spheroidal geometry: Vector formulation. IEEE Transactions on Antennas and Propagation, 56(4), 961-969. https://doi.org/10.1109/TAP.2008.919176