A technique for generating and detecting an EM signal in the THz range involves generating EM energy having multiple modes, selecting at least two of the modes of the EM energy to provide a multi-mode EM signal, subjecting the multi-mode EM signal to mixing, and isolating a beat signal component that results from the mixing. The spacing between adjacent ones of the selected modes, i.e., the frequency difference between the modes, is in the radio frequency (RF) or microwave frequency ranges. Signals in these ranges are commonly processed using electronic circuits at room temperature.

 
Web www.patentalert.com

< Systems and methods for manufacturing control using radio frequency identification

< Method for mapping machine rooms and locating machines within machine rooms

> Processing system for recording media content

> Internet radio receiver

~ 00278