Signal processing applications using multiple valued literal gate based on resonant tunneling diodes

A multiple valued literal circuit based on unique I-V characteristics of RTDs is presented. The presented circuit is simulated and tested with several single peaked RTD sections connected in series (stacked RTDs). The design uses current tapping technique to switch on only one RTD section exclusively in order to create a single literal function. The number of RTD sections connected in series therefore determines the radix of signals used in the decoder. The functionality of the literal circuit can be further extended to constructed Multiple Valued MUX/DEMUX circuits which are the basic building blocks for signal processing and other logic applications.