Performance comparison for millimeter-wave single-pole double throw switches

In this paper we present the performance comparison of different single-pole double throw (SPDT) switch topologies realized in metamorphic high electron mobility transistor (mHEMT) technology. Conventional series-series and shunt-shunt topology switches designed for 60 GHz and 94 GHz are compared to the asymmetrical topology switch designed for broadband performance from 60 to 90 GHz. Parameters like insertion loss, isolation, power matching and linearity are considered in this paper.