The PS-255-2G18G-8B-SFF is an 8-Bit Digitally Controlled phase shifter that operates from 2 GHz to 18 GHz. It has a has phase range from 0 deg to 255 deg with a resolution of 1.0 deg. The phase shifter has an insertion loss below 18 dB and a VSWR of 2.5:1. It requires a 12 V to 15 V DC Supply and typically draws 200 mA of current. The unit is supplied in a housing measuring 2.0x 2.1x 0.5.