Apparatus and method for controlling phase of signal
AssigneeSamsung Electronics Co., Ltd.
InventorsArtem Rudolfovitch Vilenskiy, Mikhail Nikolaevich Makurin, Nikolay Nikolayevich Olyunin
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Abstract
The present disclosure relates to an analog phase shifter for mitigating transmission losses. The analog phase shifter includes a multi-port network including an input port for inputting an RF signal and an output port for outputting a phase-changed RF signal. The analog phase shifter further includes a hybrid coupler configured to operably couple the input port and the output port to a plurality of load ports. The analog phase shifter additionally includes tunable reflective loads coupled to the hybrid coupler through the plurality of load ports. Load values of the tunable reflective loads are tuned by applying a plurality of independent voltages.
Claims17
An analog phase shifter comprising:
- a processor;
- a multi-port network comprising an input port for inputting a radio frequency (RF) signal and an output port for outputting a phase-changed RF signal;
- a hybrid coupler configured to operably couple the input port and the output port to a plurality of load ports;
- and
- variable loads coupled to the hybrid coupler via the plurality of load ports,
- wherein the processor is configured to:
- identify a combination of control voltage values that is different from at least one combination of control voltage values causing an inner resonance of the variable loads;
- and
- apply a plurality of independent voltages according to the identified combination of control voltage values to the variable loads.
An operating method of an analog phase shifter, the method comprising:
- identifying a combination of control voltage values that is different from at least one combination of control voltage values causing an inner resonance of variable loads;
- and
- applying a plurality of independent voltages according to the identified combination of control voltage values to the variable loads,
- wherein the applied plurality of independent voltages is used to output a phase-changed radio frequency (RF) signal from an RF signal.
Dependencies are inferred from the claim text.