CALCULATED PERFORMANCE OF S.I.S. JUNCTIONS AS FREQUENCY MULTIPLIERS

The harmonic balance technique is applied to examine the performance of SIS junctions as millimeter- and submillimeterwave frequency multipliers. The effects of drive level, bias, embedding impedance, and junction parameters on harmonic generation are described. The calculations show that the output power is only a few nanowatts per junction, but that the efficiency is reasonable: in the range of 1518% for realistic junction parameters.