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US 10,367,535 B2Granted
Cartesian loop circuits, transmitters, devices, and related methods
AssigneeMotorola Solutions, Inc.
InventorsNir Corse, Mark Rozental, Yaniv Salem
Life of this patent
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AssigneeMotorola Solutions, Inc.
InventorsNir Corse, Mark Rozental, Yaniv Salem
Estimating the term…
A Cartesian loop circuit includes a reference signal amplifier, a forward path coupled to the reference signal amplifier, a feedback path coupled to the forward path, and a controller. The forward path includes an up-mixer to up mix a forward path signal to a radio frequency signal. The feedback path includes a down-mixer to down mix a feedback signal to a frequency of a baseband reference signal inputted to the forward path. The feedback path provides the down-mixed feedback signal to the forward path. The controller is to perform power control at a low power by controlling a gain of the reference signal amplifier and is to perform power control at a high power by controlling a gain of the down-mixer. At the high power, the controller may perform power control by further controlling the gain of the up-mixer.
A Cartesian loop circuit comprising:
A Cartesian loop transmitter device comprising:
A method for power control in a Cartesian loop circuit, the method comprising:
Dependencies are inferred from the claim text.