15-30GHz Frequency Multiplier. GaAs Monolithic Microwave IC in SMD leadless package. The CHX3068-QDG is a Ka-band frequency multiplier monolithic integrated circuit. Typical applications are for telecommunication such as DVB-RCS. The circuit is manufactured with a pHEMT process, 0.25µm gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is supplied in lead-free SMD package.