The NPQM Series from Custom Microwave Components is a Analog Phase Shifter with Frequency 1 to 20 GHz, Phase Shift 0, 90, 180, and 270 Degrees, Insertion Loss 7.0 to 9.0 dB, Control Voltage -5 to 5 V, Current 50 mA. Tags: Module with Connectors. More details for NPQM Series can be seen below.