Abstract: A transmitter includes a transformer that is configured to transform a baseband signal into an amplitude information signal and a phase information signal. The transmitter includes a ramping control unit configured to generate a power control signal. The transmitter includes a mixer that is configured to combine the amplitude information signal with the power control signal and produce a second amplitude information signal. The transmitter includes a modulator that is configured to modulate the second amplitude information signal on the phase information signal and produce an output signal.

Abstract: A circuit arrangement includes a phase locked loop configured to produce a controlled frequency. The phase locked loop has an actuating input and a control loop output, with it being possible to tap off the frequency at the control loop output. In addition, a frequency meter is provided, which is connected to the control loop output of the phase locked loop. The frequency meter is configured to measure the frequency of the phase locked loop. Finally, a computation unit is provided in order to determine a gradient associated with the phase locked loop and generate a correction value based thereon, wherein the correction value is employed to mitigate a deterioration in the loop bandwidth due to variations in the gradient.

Abstract: A circuit for phase detection includes two current sources controlled by a phase detector. One of the current sources has a reference current input that is connectable to a first or second reference current source in response to the phase detector.