  The physical pictures of eigen-mode theory (EMT) and the conventional
characteristic mode theory (CMT) reveal a fact that: the EMT and CMT are the
modal theories for electromagnetic wave-guiding and scattering (for details,
please see the Appendices E, F, G and H) systems respectively, rather than for
electromagnetic transceiving systems. This Postdoctoral Research Report is
devoted to establishing a novel modal theory - decoupling mode theory (DMT) -
for transceiving systems, and constructing the energy-decoupled modes (DMs) of
objective transceiving system. This Postdoctoral Research Report is a companion
volume of the author's Doctoral Dissertation "Research on the Work-Energy
Principle Based Characteristic Mode Theory for Scattering Systems"
(arXiv:1907.11787).
