A microstrip-to-microstrip hot-via transition up-to 80 GHz designed for direct PCB mounting of MMICs

This paper presents a new microstrip-tomicrostrip Hot-Via transition designed for SMD MMICs mounted on a PCB carrier substrate. Good RF performance is achieved from DC to 80 GHz which demonstrates the potential of the Hot-Via concept. The broadband transition optimized is generic and can he adapted on a large panel of MMICs.