Rohde and Schwarz Gmbh & Co. Kg

Markus Gallhauser

Werner Perndl

Nino Voss

Christian Benisch

Adam Tankielun

Martin Oetjen

Gerd Hechtfischer

Georg Schnattinger

Martin Roth

Matthias Jelen

Waldemar Henrich

Esmeralda Strobel

Guenter Koellner

Simon Schelkshorn

Thomas Hartmann

Dr Georg Schnattinger

Dr Adam Tankielun

Dr Werner Perndl

A measurement system including a measurement device and at least a first probe unit and a second probe unit is disclosed. The first probe unit and the second probe unit are each connected to the measurement device in a signal transmitting manner. The measurement device includes a control circuit. The first probe unit includes an interface module being configured to receive a user input, to generate an input data signal based on the received user input, and to provide the input data signal to the control circuit. The control circuit is configured to generate and provide a control signal at least to the second probe unit based on the input data signal. At least the second probe unit is configured to adjust an operational parameter based on the control signal, wherein the operational parameter relates to a measurement parameter to be measured Moreover, a method for operating a measurement system is disclosed.

Measurement system and method of operating a measurement system

The present disclosure relates to an over-the-air test apparatus for testing a device under test over-the-air. The test apparatus includes an antenna that is connected with a radio frequency circuit having at least three ports. A first port of the radio frequency circuit is connected with a first path that includes a connector configured to connect a signal analyzer and/or a signal generator with the over-the-air test circuit. A second port of the radio frequency circuit is connected with a second path that encompasses a detector. The second path includes an interface configured to be connected with a power meter, a signal analyzer or a feedback interface of a signal generator. Further, a test system is described.

Over-the-air test module and test system

An antenna module for over-the-air testing, the antenna module comprises a signal generation module, a measurement module, and an antenna. The signal generation module comprises a control input. The measurement module comprises an analog output. The antenna is assigned to the measurement module and the signal generation module. The signal generation module comprises a signal generator and a control unit assigned to the control input. The control unit is configured to receive a control signal via the control input. The control unit is configured to process the control signal received via the control input, thereby controlling output of the signal generation module. Further, a test system is described.

Antenna module and test system

A signal generation device with correction parameter measurement is provided. Said signal generation device comprises a signal generating unit configured to provide at least one test signal for a device under test with the aid of a connection structure, and a correction parameter measurement unit configured to measure at least one correction parameter with respect to said connection structure. In this context, both the signal generating unit and the correction parameter measurement unit are integrated into one housing.

Signal generation device, spectrum analyzing device and corresponding methods with correction parameter

A measurement system comprising a measurement device and at least a first probe unit and a second probe unit is disclosed. The first probe unit and the second probe unit are each connected to the measurement device in a signal transmitting manner. At least one of the measurement device and the first probe unit comprises a control unit. The first probe unit comprises an interface module being configured to generate an input data signal and to provide the input data signal to the control unit. The control unit is configured to generate and provide a control signal at least to the second probe unit based on the input data signal. Moreover, a method for operating a measurement system is disclosed.

Measurement system and method for operating a measurement system

Probe for testing a radio frequency device, test system and test method. A probe is used for measuring radio frequency signals provided by the device under test or for providing test signals to the device under test. In particular, the probe comprises a power detector directly connected to the contacting elements of the probe. Accordingly, such a power detector can provide a power signal highly correlated with the power signal of a radio frequency signal at input or output terminals connected to the probe.

Probe with radio frequency power detector, test system and test method

A system for performing multiple input/multiple output tests on a device under test has a central control unit and a least two antenna modules connected to the central control unit via a signal line, wherein the antenna modules comprise a radio-frequency antenna, a signal generation unit and at least one power measurement unit. Further, a test setup and a method for performing MIMO tests are shown.

System, test setup as well as method for performing MIMO tests

An apparatus for measuring radio frequency power is provided. The apparatus comprises at least one interface, at least two measurement paths, and a processor. In this context, at least two of the at least two measurement paths are connected to a single interface, whereas the at least two measurement paths are connected to the processor in order to provide measurement data for the processor. In addition to this, the processor is configured to select one of the at least two measurement paths for producing a measuring result on the basis of at least one environmental sensor value from at least one environmental sensor and/or on the basis of at least one user input.

Apparatus and method for measuring radio frequency power

An RF cable includes a connector housing having an RF signal output interface, a cable body having a first end portion connected to the connector housing and a second end portion comprising an RF signal input interface, an RF signal transmission path formed from the RF signal input interface through the cable body and the connector housing to the RF signal output interface, and a power measurement device integrated into the connector housing and configured to measure a power value of an RF signal transmitted through the RF signal transmission path. The RF cable further includes a measurement signal output interface, and a measurement signal transmission line connecting the power measurement device to the measurement signal output interface, the power measurement device being configured to output a measurement signal indicating the measured power value of the RF signal at the measurement signal output interface.

RF cable and cable-bound path loss determination method

A test setup for power measurement of a fast switching active antenna array with a beam switching time lower than one microsecond is described. The test setup includes at least two detector modules for detecting a signal transmitted by the fast switching active antenna array and a power sensor module for measuring the power of at least one signal received. The power sensor module has an analog-to-digital converter circuit for converting an analog signal into a digital signal. Each of the detector modules includes at least one antenna via which at least one signal transmitted by the fast switching active antenna array is received. The at least two detector modules are positioned in at least two predefined main radiation directions of the fast switching active antenna array. Each of the detector modules has a rise time, the rise time being lower than the beam switching time of the fast switching active antenna array.

Power measurement apparatus

A measuring system for performing over the air power measurements is provided. The measuring system comprises, within a single housing, a detector module, comprising a detector input, a transmitter module, comprising a transmitter output, and an antenna. The detector input and the transmitter output are at least temporarily connected. At least the transmitter output or the detector input are at least temporarily connected to the antenna.

Measuring system for over-the-air power measurements with active transmission

A measuring system for performing over-the-air measurements on a device under test is provided. The measuring system comprises an antenna, configured for performing over-the-air measurements, an alignment device and an antenna holder interface, configured for interchangeably holding one of the antenna and the alignment device. The alignment device is configured for aligning the antenna holder interface and the device under test.

Measuring system with antenna alignment

The present invention provides an over the air, OTA, power sensor () for measuring power of a wireless signal () with at least two different polarizations, the OTA power sensor () comprising a first power sensor () for every polarization, every power sensor comprising a signal detector () for detecting the wireless signal (), wherein the signal detectors () are single polarized and wherein the polarization planes (-) of the signal detectors () are arranged at an angle of more than zero degree to each other and wherein the main radiation vectors (-) of the signal detectors () are parallel to each other, and the first power sensors () each comprising a power measurement device (-), which is configured to measure the power of the detected wireless signal () and output a respective measurement signal (--). Further, the present patent application provides a respective method.

Over the air power sensor and method

An over the aft measurement module comprises an antenna, adapted to receive a first measuring signal from a device under test or adapted to transmit a second measuring signal to the device under test. Furthermore, the over the air measurement module comprises a mixer, directly connected to said antenna, adapted to reduce or increase a frequency of the received first measuring signal, resulting in a frequency reduced or increased first measuring signal, or adapted to increase or reduce a frequency of a frequency reduced or increased second measuring signal, resulting in the second measuring signal. In addition to this, the over the air measurement module comprises a first connector, connected to said mixer, adapted to input a local oscillator signal into the mixer for frequency conversion.

Over the air measurement module

A measuring system for measuring a high frequency signal is provided. The measuring system comprises an antenna module, adapted for receiving the high frequency signal. Moreover, the system comprises a detector module adapted for deriving a measuring signal from the high frequency signal. Finally, the system comprises a sensor module adapted for measuring the measuring signal. The sensor module is arranged in a housing, while the detector module is not arranged in the housing. The detector module is connected to the sensor module by a first cable, which is adapted to transmit the measuring signal from the detector module to the sensor module.

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Freising, Germany

Markus Gallhauser