Abstract: An integrated device comprises a horn antenna with an antenna waveguide feed, a waveguide transition element comprising a first end connected to the antenna waveguide feed and second end, and an orthomode transducer comprising a common waveguide connected to the second end of the waveguide transition element and at least two separate waveguides. The orthomode transducer is adapted to couple at least two orthogonal linear polarized fields into the common waveguide of the orthomode transducer with the aid of the at least two separate waveguides of the orthomode transducer and/or vice versa. The horn antenna is preferably adapted to support at least two waveguide modes corresponding to the at least two orthogonal linear polarized fields. The integrated device is preferably manufactured in at least two separate blocks such that each part of the at least two piece assembly is constructed as external protrusions and/or holes and/or partial holes.

Abstract: The present invention provides a test arrangement and test method for testing a wireless device under test. A first antenna may be arranged at a first distance from the device under test, and a second antenna may be arranged at a second distance from the device under test. In particular, the second antenna may be arranged closer to the device under test and the first antenna. Physical parameters characterizing the transmission properties between the individual antenna and the device under test are determined for the first and the second antenna. Test of the device under test is performed employing the second antenna, wherein the signals are rescaled based.

Abstract: A test system for measuring beam characteristics of a device under test (DUT) is provided. The system comprises a DUT, a measurement antenna configured to receive electro-magnetic radiation emitted by the DUT, a link antenna configured to provide a test communication link to the DUT, and a control and analyzing unit configured to control a beam steering of the device under test and to analyze signals from the device under test received by the measurement antenna. The test communication data transmitted to the device under test comprises beam steering control data in order to control the beam steering of the DUT.

Abstract: A measurement system is provided. The measurement system comprises a device under test comprising at least two signal paths, at least two measurement antennas being spatially separated in the near-field of the device under test, and a signal analysis unit. Whereas each of the at least two signal paths of the device under test comprises an antenna and a power amplifier, noise of the power amplifiers of the at least two signal paths of the device under test is not phase-coherent. In this context, the signal analysis unit is configured to perform at least two time-coherent measurements with the aid of the at least two measurement antennas with respect to the device under test in near-field. In addition to this, the signal analysis unit is further configured to calculate at least one signal characteristic, especially error vector magnitude and/or signal-to-noise ratio, in far-field on the basis of the at least two time-coherent measurements in the near-field.

Abstract: A measurement system comprising a device under test, at least a first antenna and a second antenna, a reflector device, a shielded space and a signal analysis module is disclosed. The first antenna is configured to at least one of generate electromagnetic waves directed to the reflector device and receive electromagnetic waves reflected by the reflector device. The reflector device is configured to reflect electromagnetic waves between the first antenna and the device under test. The second antenna is positioned in a near-field area of the device under test. At least the second antenna is connected to the signal analysis module, and the device under test, the first antenna, the second antenna and the reflector device are assigned to the shielded space. Moreover, a method for operating a measurement system is disclosed.

Abstract: A measurement system and method for over the air multiple antennas measurements are provided. The measurement system comprises, inside an anechoic chamber, a device under test, several measurement antennas, several mirrors and at least one shaped reflector. The measurement antennas are placed pointing at the shaped reflector. Each of the mirrors is placed along fields reflected by the shaped reflector. The mirrors reflect fields that form different angles of arrival at the device under test.

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: This application relates to an anechoic test chamber for testing antennas of a device under test (DUT), the test chamber comprising: a test area having a test surface for receiving the DUT, wherein in a test mode the test surface forms a region of measurement of the DUT and wherein the DUT comprises at least one antenna array having a plurality of multi-input multi-output (MIMO) antennas, at least one reflector compact antenna test range (CATR) comprising a first measurement antenna and one shaped reflector, wherein the reflector is used to generate a first quiet zone, at least one second measurement antenna, wherein the second measurement antenna is arranged inside the test chamber such to generate a second quiet zone at test surface, an input/output terminal for connecting the test chamber to a test equipment, wherein the input/output terminal is connected to the first and second antennas.

Abstract: A test system for measuring beam characteristics of a device under test (DUT), comprising a first antenna for receiving electro-magnetic radiation emitted by the device under test or for establishing a first test communication link to exchange test communication data with the DUT. The system further comprises a switch for setting the mode of the first antenna to a measuring or communication mode, and a test interface for inputting beam steering and/or communication data to the DUT. The system further comprises a control/analyzing processor for controlling beam steering of the DUT and to analyze signals from the DUT, e.g., received by the first antenna operated in the measuring mode. When the first antenna is set to the communication mode, test communication data is transmitted to the DUT through the first antenna. The test communication data comprises beam steering control data for controlling the beam steering of the DUT.

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: The present invention provides a wireless communication system using encrypted communication. In particular, the present invention provides a transmission of key data for encrypting or decrypting data by a plurality of independent wire-less transmission channels. Accordingly, encryption or decryption is performed by a combination of the key data transmitted by a plurality of the wireless transmission channels.

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: A measurement system for over-the-air measurements is provided. The measurement system comprises a device under test, at least one antenna, a positioner for positioning the device under test, wherein the positioner comprises at least one rotational axis, and a measurement equipment connected to the at least one antenna. In this context, the at least one rotational axis includes a common interface for different measurement setups.

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.

Abstract: A measuring system for over the air measurements on a device under test comprises an antenna module with at least one measuring antenna, a positioner, adapted to change a relative position of the device under test and the antenna module, resulting in a relative path of movement of the antenna module with regard to the device under test. Each measuring antenna comprises an integrated power detector diode. Each measuring antenna is adapted to determine at least two power values during the movement along the path of movement.

Abstract: An anechoic chamber for testing a device under test is provided. The anechoic chamber comprises at least one gas input means for inputting a gas into the anechoic chamber, and at least one gas output means for outputting the gas out of the chamber. In addition to this, the gas input means and the gas output means create a directed gas stream with respect to a predefined region of the anechoic chamber.

Abstract: An antenna array is described which comprises a plurality of antenna elements. Said antenna elements are grouped in at least two antenna groups. Said antenna elements of each antenna group emit coherent signals. Said antenna groups are arranged symmetrically to a central point of said antenna array. Further, a method for testing a device under test and a test system are described.

Abstract: A measuring device comprising a plurality of analog signal adjusters, and an antenna array, comprising a plurality of antennas is provided. Each of the plurality of antennas is connected to exactly one of the plurality of analog signal adjusters. The analog signal adjusters are adapted to alter the phase and/or amplitude of signals sent and/or received by the plurality of antennas, generating an antenna characteristic of the antenna array comprising at least a first beamforming beam or a first plane wave and a second beamforming beam or a second plane wave.

Abstract: A measurement system is provided. The measurement system comprises a device under test, at least two measurement antennas, and a reflector. In this context, the reflector comprises at least two separate curved surfaces in the same physical entity in order to generate separate plane waves corresponding to the at least two measurement antennas. The reflector is configured in such a manner that the separate plane waves converge in a quiet-zone comprising the device under test.

Abstract: The invention relates to a dual orthogonally polarized antenna and to a method for measuring two orthogonal polarizations. The orthogonally polarized antenna includes a first antenna and a second antenna for measuring two orthogonal polarizations, each of the two antennas having a phase center. Additionally, a first lens constructed with two different radii of curvature, is placed around the dual orthogonally polarized antenna.