Abstract: A measurement device and method for testing a device under test (DUT). The device includes an input terminal for receiving a RF signal from the DUT; at least one analog-to-digital (A/D) converter configured to generate a digital data including a plurality of sampled signals from the received RF signal; at least one filter configured to filter the digital data generated by the at least one A/D converter based on an intermediate-frequency bandwidth (IFBW) set in the at least one filter; a detector configured to analyse the filtered digital data based on a pre-set number of samples from the filtered digital data; and a controller configured to calculate a signal-to-noise ratio (SNR) value of the analysed filtered digital data, and to adjust at least one of the IFBW of the at least one filter and the number of samples of the detector based on the calculated SNR value.

Abstract: A measurement device and method for testing a device under test (DUT). The device includes an input terminal for receiving a RF signal from the DUT; at least one analog-to-digital (A/D) converter configured to generate a digital data including a plurality of sampled signals from the received RF signal; at least one filter configured to filter the digital data generated by the at least one A/D converter based on an intermediate-frequency bandwidth (IFBW) set in the at least one filter; a detector configured to analyse the filtered digital data based on a pre-set number of samples from the filtered digital data; and a controller configured to calculate a signal-to-noise ratio (SNR) value of the analysed filtered digital data, and to adjust at least one of the IFBW of the at least one filter and the number of samples of the detector based on the calculated SNR value.

Abstract: Measurement arrangement and method for measuring an electromagnetic field. It is for this purpose that a measurement probe is arranged on a mechanical probe positioning structure and moved along a number of one or more circular tracks. In this way, the measurement probe can be subsequently located at multiple different spatial positions and the corresponding electromagnetic signal can be measured. Accordingly, properties of an electromagnetic field can be determined by taking into account the measured electromagnetic signal with respect to the related spatial position.

Abstract: A method of performing a measurement of a device under test by using an antenna array.

Abstract: An over-the-air measurement system for investigating a device under test with respect to its temperature behavior is provided. The over-the air measurement system includes a positioning unit attached to the device under test for positioning the device under test, at least one antenna, and a temperature generating unit for generating heated or cooled air. The over-the-air measurement system includes a piping system comprising at least one pipe connected to the temperature generating unit for passing the heated or cooled air generated by the temperature generating unit into at least one opening of an enveloping material surrounding the device under test or for siphoning the heated or cooled air.

Abstract: Measurement arrangement and method for measuring an electromagnetic field. It is for this purpose that a measurement probe is arranged on a mechanical probe positioning structure and moved along a number of one or more circular tracks. In this way, the measurement probe can be subsequently located at multiple different spatial positions and the corresponding electromagnetic signal can be measured. Accordingly, properties of an electromagnetic field can be determined by taking into account the measured electromagnetic signal with respect to the related spatial position.

Abstract: Measurement arrangement and method for measuring an electromagnetic field. It is for this purpose that a measurement probe is arranged on a mechanical probe positioning structure and moved along a number of one or more circular tracks. In this way, the measurement probe can be subsequently located at multiple different spatial positions and the corresponding electromagnetic signal can be measured. Accordingly, properties of an electromagnetic field can be determined by taking into account the measured electromagnetic signal with respect to the related spatial position.

Abstract: A method of performing a measurement of a device under test by using an antenna array.

Abstract: An antenna system comprises a wide-band antenna and a lens body. At least a portion of the antenna is placed inside the lens body. The antenna has at least two antenna portions with ends. The antenna portions define a distance between them, which gradually increases towards the ends defining the aperture of the antenna. The lens body has at least two curved sections that merge into a common material section of the lens body. The common material section is located below the aperture of the antenna. Further, a compact antenna test range is described.

Abstract: An antenna measurement system is described, comprising a device under test and a measurement antenna array. Said measurement antenna array comprises a plurality of antenna elements. Said measurement antenna array is positioned in the near field of said device under test. Said measurement antenna array is positioned such that the main orientation of said measurement antenna array is inclined with respect to the boresight of said device under test and said measurement antenna array. Further, a method for controlling a measurement antenna array is described.

Abstract: The present invention relates to a measurement of radio-frequency signals by a measurement arrangement comprising a radio-frequency lens for mapping a vertex of a reflector to a virtual vertex. Accordingly, measurement of radio-frequency signals may be performed either at the vertex of the reflector or the virtual vertex generated by means of the radio-frequency lens.

Abstract: A measuring system for measuring properties of a device under test over the air comprises an antenna array, adapted to receive first measuring signals from the device under test, a measuring device adapted to process the first measuring signals received by the antenna array, and to generate second measuring signals and transmit them to the device under test, using the antenna array. The measuring device comprises a quiet zone generator, which is adapted to perform a beamforming of the first measuring signals after reception by the antenna array. It is preferably also adapted to perform a beamforming on the second measuring signals before transmission by the antenna array. The quiet zone generator is adapted to apply the beamforming, so that at least one adjustable quiet zone is achieved.

Abstract: An inventive measuring device comprises a measuring unit, a communication unit and a control unit. The measuring unit is adapted to wirelessly receive a measuring signal transmitted by a device under test. The control unit is adapted to derive at least one measuring device, especially a signal level, from the received measuring signal. The communication unit is adapted to only wirelessly transmit the at least one measuring result to a central measuring unit, not being part of the measuring device.

Abstract: An antenna system comprises a wide-band antenna and a lens body. At least a portion of the antenna is placed inside the lens body. The antenna has at least two antenna portions with ends. The antenna portions define a distance between them, which gradually increases towards the ends defining the aperture of the antenna. The lens body has at least two curved sections that merge into a common material section of the lens body. The common material section is located below the aperture of the antenna. Further, a compact antenna test range is described.

Abstract: An antenna unit for receiving and/or emitting electromagnetic waves having a certain wavelength is described. Said antenna unit is a slotline antenna unit having a slot region. Said antenna unit comprises at least one antenna element and a first carrier. Said first carrier is made by a dielectric material wherein said first carrier has at least one cutout in said slot region. Said antenna element is made by a printed circuit board. Said antenna element and said first carrier are attached to each other wherein said first carrier has a thickness being less than one fifth of said wavelength. Further, a radio frequency circuit and a method for manufacturing an antenna unit are described.

Abstract: An antenna array for at least one of generating and receiving a plane wave in a certain distance is described, the antenna array comprising a plurality of antennas which are movable with respect to each other. The antenna array is configured such that plane waves are at least one of generated and received in the near field of the antenna array. Further, a test system and a method for testing a device under test are described.

Abstract: A calibration system for calibrating an antenna array comprising antenna elements comprises a measuring unit, and a calibration antenna connected to the measuring unit. The measuring unit sequentially excites each antenna element of the antenna array with an input signal and receives the corresponding output signal through the calibration antenna. Furthermore, the measuring unit measures a transfer function of each antenna element of the antenna array.

Abstract: An antenna unit for receiving and/or emitting electromagnetic waves having a certain wavelength is described. Said antenna unit is a slotline antenna unit having a slot region. Said antenna unit comprises at least one antenna element and a carrier. Said carrier is made by a dielectric material wherein said carrier has at least one cutout in said slot region. Said antenna element is made by a printed circuit board. Said antenna element and said carrier are attached to each other wherein said carrier has a thickness being less than one fifth of said wavelength. Further, a radio frequency circuit and a method for manufacturing an antenna unit are described.

Abstract: A system for phase calibration of an antenna array comprises at least two antenna elements. The system furthermore comprises a device under test comprising the antenna array, a plane wave converter, and a phase measuring unit. Whereas the device under test is configured to transmit or receive a test signal with spatially dependent phase, the plane wave converter is configured to convert the test signal with spatially dependent phase into a signal with constant phase. In addition to this, the device under test or the phase measuring unit is configured to derive calibration values for the phase calibration of the antenna array from the signal with constant phase.

Abstract: This application relates to a test chamber for testing a device under test (DUT), the test chamber comprising: a plurality of chamber walls defining an interior of the test chamber which are configured to provide an anechoic and shielded test chamber, an antenna arrangement which is arranged in the form of a plane-wave synthesizing array and which is configured to emit plane-waves into the interior of the test chamber, a receiving area for receiving the DUT, wherein in a test mode the receiving area forms a region of measurement of the DUT, wherein the receiving area is formed by a portion of a first wall of the test chamber and wherein the receiving area is configured such that during test mode heat from the DUT is transferred to the outside of the test chamber. The application further relates to a test system comprising such a test chamber.