Since then, until quite recently, the Superhet design has been at the heart of a majority of commercial radio receivers. Direct Conversion Receivers were devised around 1930, but required ...

When two sinusoidal waveforms, one at frf and the second ... In RF design, we refer to multipliers as frequency mixers. In a superheterodyne receiver the desired RF signal is multiplied down ...

STL has investigated many transceiver/receiver topologies including quasi-monostatic ... ranging from ultra-stable low-noise stepped-Frequency Modulated Continuous Wave (FMCW) superheterodyne to the ...