Whisker-contacted diode-multipliers as quasioptical SMMW-arrays

Starting from a SMMW-multiplier design with quasioptical output two different multiplier compounds are presented. These new multipliers consist of a quasioptical antenna array in the output circuit which acts as a tunable power combiner. The multipliers work as quadruplers with an output frequency of 600 GHz. In all constructions the pump energy is fed into the diodes by a screened waveguide network. Optimum configurations for all arrays concerning quasioptical power combining are calculated and a theoretical comparison between the different multiplying conceptions is made. Finally some characteristic measurements of the quasioptical quadruplers are illustrated.