Abstract
Frequency multipliers which are built on a dielectric substrate have many useful applications in radio systems. The multiplier circuits which include input and output filters, idler circuits, and matching networks can be produced by integrated circuit processing techniques. Varactor diodes, also made by batch processing, can be bonded to the metallized substrate. A hybrid integrated three-times frequency multiplier from 10 to 30 GHz has been designed and built on a silica substrate by using frequency scaling and integrated circuit processing techniques. The multiplier produces a CW output power of 50 mW for a pump power of 178 mW with an overall efficiency of 29 percent. The maximum output power is 150 mW. Other harmonic generators with different output frequencies can be built by scaling the existing circuit.
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