The PSPA11201721B from ReliaSat is a Analog Phase Shifter with Frequency 17 to 21 GHz, Phase Shift 360 Degree, Insertion Loss 13 to 18 dB, Control Voltage -0.7 to 1.5 V, Supply Voltage 3 V(Bias Voltage). Tags: Die. More details for PSPA11201721B can be seen below.