The HMC144 devices are double-balanced MMIC mixers available in a chip (HMC144), a leadless Pb-free SMT package (HMC144LC4), and a hermetic SMT leadless package (HMC144LH5), all of which can be used as an upconverter or downconverter from 6 GHz to 20 Ghz. The HMC144 utilizes a standard 1 μm GaAs metal semiconductor field effect transistor (MESFET) process and is identical to the HMC143, except that the layout is a mirror image designed to ease integration into image reject mixer modules. Broadband operation and excellent isolations are provided by on-chip baluns, which require no external components and no dc bias. The HMC144 devices are more reliable alternatives to hybrid diode mixers, assuring consistent conversion loss and isolation performance over multiple and high volume production lots. The design of the HMC144 is similar to the HMC141 and HMC142 mixers, but with an IF combiner in a double-balanced design, providing improved RF/IF isolation. The HMC144LC4 and HMC144LH5 eliminate the need for wire bonding, allowing use of surface mount manufacturing techniques.ApplicationsMicrowave point-to-point radiosVery small aperture terminal (VSAT)Test equipment and sensorsMilitary end useTelecom infrastructureTest instrumentationMilitary radio, radar, and electronic countermeasure (ECM)Space systems