Quantic PMI Model PS-360-DC-IR-9D510D5 is a 10 Bit digitally controlled 360 degree phase shifter with a typical accuracy of ±0.4° with a switching speed of 500ns maximum. This model operates in the range of 9.5 to 10.5 GHz. This model only requires a single DC supply voltage of +12V. Package size is 4.95" x 3.38" x 1.0" with a 15 Pin subminiature D connector for power/control and SMA female connectors.
Also consider: PS-360-DC-3 OPTION 618-15D-10BIT for similar performance in a wider frequency range.