A Gate Bias Free Power MMIC Module for Ka-Band High-speed Wireless Applications

A high power and high gain packaged power MMIC module for Ka-band applications operating under a single polarity bias supply has been developed for the first time. This PA module consists of two pseudomorphic HEMT MMICs, with Lg=0.25um, packaged in a single power module. These MMICs operate without a gate bias control voltage when the gate bias is shunted in the package. This PA module provides 30dBm output power and approximately 30dB of gain in the 27-31GHz range. The single bias supply operation provides significant cost advantage to the device manufacture as well as the end user since there is no need to design a gate control bias network.