  The fundamentals of the whispering gallery mode (WGM) resonators are well
established in the literature, with several successful proof-of-concept
experiments. One remarkable benefit of this technology is the room-temperature
operation. This characteristic could be used to build a new generation of
radiometers that do not need to be cooled down to cryogenic temperatures to
reach high sensitivities. In this article, a study of the viability of
technological transfer is undertaken, beginning with a brief review of the
theoretical background that will be applied and leading to a proposal for a
novel spectro-polarimeter design. Simulations for a radiometer based on WGM
resonance are analyzed and compared with state-of-the-art coherent receivers.
The results are then discussed, finding that although promising, WGM technology
needs R\&D in several directions in order to be competitive, whose are
suggested by the authors with the idea of inspiring the work of the researchers
in the field towards a new direction or approach.
