Abstract: A calibration device and method for a test system. First and second oscillators are actuated in such a way that a first signal which varies with a specified target frequency and a second signal which varies in phase with the first signal are output. A phase rotation device is actuated taking into account a target phase shift angle of 90° between the phase-shifted first signal and the second signal or between the phase-shifted first signal and the phase-shifted second signal such that an actual phase shift angle is produced. The phase-shifted first signal is mixed using a signal mixing device with the second signal or phase-shifted second signal to form an output signal. Deviation information is ascertained relating to a deviation of the actual phase shift angle from the target phase shift angle, taking into account the output signal.

Abstract: A device for processing an input signal, including a local oscillator, designed to generate an oscillator signal; a subtracting unit, designed to subtract an amplified correction signal from the input signal in order to generate a corrected input signal; a downmixer, designed to mix the corrected input signal downward to an intermediate frequency using the oscillator signal in order to generate a difference signal; a first amplifier unit, designed to amplify the difference signal in order to generate and output an output signal; a correcting unit, designed to suppress a predefined frequency range of the output signal in order to generate a correction-difference signal; an upmixer, designed to mix the correction-difference signal upward using the oscillator signal in order to generate a correction signal; and a second amplifier unit, designed to amplify the correction signal in order to generate the amplified correction signal.

Abstract: A device for processing an input signal, including a local oscillator, designed to generate an oscillator signal; a subtracting unit, designed to subtract an amplified correction signal from the input signal in order to generate a corrected input signal; a downmixer, designed to mix the corrected input signal downward to an intermediate frequency using the oscillator signal in order to generate a difference signal; a first amplifier unit, designed to amplify the difference signal in order to generate and output an output signal; a correcting unit, designed to suppress a predefined frequency range of the output signal in order to generate a correction-difference signal; an upmixer, designed to mix the correction-difference signal upward using the oscillator signal in order to generate a correction signal; and a second amplifier unit, designed to amplify the correction signal in order to generate the amplified correction signal.