Patent ID: 7839237

Claim:
A phase shifter comprising: a first path and a second path, wherein the first path has a different phase response than the second path; and a switch comprising at least one transistor, wherein the at least one transistor is configured to selectively pass an RF signal through one of the first path and the second path; wherein each of the at least one transistor receives a control signal; wherein each of the at least one transistor receives a reference voltage; wherein operational parameters for controlling the switching of the switch are set by performing one of the two following steps: (a) choosing the maximum and minimum voltage values for the control signal and adjusting the voltage value of the reference voltage based on at least one of the chosen maximum and minimum voltage values of the control signal; or (b) choosing a desired voltage value for the reference voltage and level shifting the operating voltage range of the control signal based on the chosen voltage value for the reference voltage.