Abstract: The present disclosure relates to test and/or measurement system including a base unit with a test ports connectable to a DUT. The base unit includes a port unit connected to one of the test ports. The port unit includes an image-free receiver circuit. An input of the circuit is connected to the one test port. The system includes an ADC unit. An output of the circuit is connected to the ADC unit. A signal source generates a stimulus signal and/or a known noise source to generate a noise signal. If the system operates in an S-parameter measurement mode, the stimulus signal is feedable to a first port of the DUT; and/or, if the system operates in a noise measurement mode, the noise signal is feedable to the first port or to a second port of the DUT. The input connects to the first or second port of the DUT.

Abstract: The present disclosure relates to a test and/or measurement system for measuring a noise figure of a device-under-test (DUT). The test and/or measurement system comprises: a test port arranged for being connected to a port of the DUT; an interface unit comprising and amplifier; and a first receiver circuit; wherein, if the test and/or measurement system is operated in a noise figure measurement mode, an input port of the amplifier is electrically connected to the test port and an output port of the amplifier is electrically connected to the first receiver circuit; wherein the interface unit further comprises a biasing circuit which is electrically connected to the output port of the amplifier and is configured to provide a biasing current and/or voltage for the amplifier during operation; and wherein the biasing circuit comprises at least one gyrator circuit.

Abstract: A radio frequency (RF) frontend for a vector network analyzer (VNA) measurement system includes a first frontend portion and a second frontend portion. The first frontend portion includes a first directional unit being configured to couple an RF signal traveling towards at least one port out of at least one measurement path. The first frontend portion further includes a second directional unit being configured to couple an RF signal traveling away from the at least one port out of the at least one measurement path. The second frontend portion includes a frequency combining unit and a switching stage. The frequency combining unit is configured to couple the stimulus RF signal into the at least one measurement path. The frequency combining unit further is configured to couple an RF signal traveling away from the at least one port out of the at least one measurement path.

Abstract: The present disclosure relates to a power sensor arrangement for on-wafer power calibration including a power sensor(s). The power sensor(s) include: a first connection surface which is arranged to receive a probe tip of a probing device; a power measurement cell which is electrically connected to the first connection surface, wherein the power measurement cell is configured to measure a power level of an RF signal applied to the first connection surface; an analog-to-digital converter (ADC) which is configured to digitalize an output signal of the power measurement cell to generate a digitalized data stream; and an encoding unit configured to encode the digitalized data stream. The encoding unit is configured to output the encoded data stream to: the first connection surface, a second connection surface of the power sensor(s), or an antenna unit of the power sensor arrangement for forwarding the encoded data stream.

Abstract: The present disclosure relates to a power sensor arrangement for on-wafer power calibration including a power sensor(s). The power sensor(s) include: a first connection surface which is arranged to receive a probe tip of a probing device; a power measurement cell which is electrically connected to the first connection surface, wherein the power measurement cell is configured to measure a power level of an RF signal applied to the first connection surface; an analog-to-digital converter (ADC) which is configured to digitalize an output signal of the power measurement cell to generate a digitalized data stream; and an encoding unit configured to encode the digitalized data stream. The encoding unit is configured to output the encoded data stream to: the first connection surface, a second connection surface of the power sensor(s), or an antenna unit of the power sensor arrangement for forwarding the encoded data stream.

Abstract: An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.

Abstract: An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.