The PB3742 from Clear Microwave, Inc is a Analog Phase Shifter with Frequency 3.7 to 4.2 GHz, Phase Shift 0 to 180 Degree, Insertion Loss 5.6 to 5.9 dB, Control Voltage 0 to 4 V, Power dBm 26.99 dBm. Tags: Module with Connectors. More details for PB3742 can be seen below.