Signal generation device, measurement device, and method

A measurement device, comprising:

• a signal generation device, the signal generation device comprising:
• at least two signal generators,
• a clock source that is coupled to the at least two signal generators and that is configured to generate a clock signal and provide the clock signal to the at least two signal generators,
• wherein the signal paths between the clock source and each one of the at least two signal generators are matched at least regarding the signal runtime, and
• wherein the at least two signal generators are each configured to generate an output signal for a device under test based on the clock signal;
• and
• at least one signal measurement input configured to measure a signal generated by the device under test based on the output signals provided to the device under test
• wherein the signal generation device comprises:
• a first signal measurement sensor for each one of the at least two signal generators, and
• a first signal comparator that is coupled on the input side to each one of the first signal measurement sensors and on the output side to at least all of the at least two signal generators but one of the at least two signal generators,
• wherein each one of the first signal measurement sensors is configured to measure the output signal of the respective one of the at least two signal generators,
• wherein the first signal comparator is configured to compare the amplitudes of the output signals and provide a respective amplitude correction factor to each one of the at least two signal generators to which the first signal comparator is coupled to,
• wherein each one of the at least two signal generators to which the first signal comparator is coupled to comprises an amplitude controller configured to control the amplitude of the respective output signal based on the amplitude correction factor;
• or
• wherein the signal generation device comprises:
• a second signal measurement sensor for each one of the at least two signal generators, and
• a second signal comparator that is coupled on the input side to each one of the second signal measurement sensors and on the output side to at least all of the at least two signal generators but one of the at least two signal generators,
• wherein each one of the second signal measurement sensors is configured to measure the output signal of the respective one of the at least two signal generators,
• wherein the second signal comparator is configured to compare the phases of the output signals and provide a respective phase correction factor to each one of the at least two signal generators to which the second signal comparator is coupled to,
• wherein each one of the at least two signal generators to which the second signal comparator is coupled to comprises a phase controller configured to control the phase of the respective output signal based on the phase correction factor.

A method for operating a signal generation device, wherein the signal generation device comprises at least two signal generators, and a clock source that is coupled to the at least two signal generators, the method comprising:

• generating with the clock source a clock signal;
• providing the clock signal to the at least two signal generators via signal paths between the clock source and each one of the at least two signal generators that are matched at least regarding the signal runtime;
• and
• generating an output signal based on the clock signal with each one of the at least two signal generators,
• wherein the method further comprises:
• measuring the output signal of each one of the at least two signal generators,
• comparing the amplitudes of the measured output signals, and
• providing a respective amplitude correction factor for at least each one of the measured output signals but one of the measured output signals,
• wherein the amplitudes of the output signals are controlled based on the respective amplitude correction factor for each one of the output signals for which an amplitude correction factor is provided;
• or
• wherein the method further comprises:
• measuring the output signal of each one of the at least two signal generators,
• comparing the phases of the measured output signals, and
• providing a respective phase correction factor for all but one of the measured output signals,
• wherein the phases of the output signals are controlled based on the phase correction factor for each one of the output signals for which a phase correction factor is provided.