Abstract: A radar system for a vehicle includes an antenna element installable at an outer shell of the vehicle, a dielectric waveguide, and a radar circuit configured to communicate with the antenna element via the dielectric waveguide. A vehicle includes a plurality of radar radio heads arranged at an outer shell of the vehicle, a plurality of waveguides, and a radar circuit configured to generate a common local oscillator signal and simultaneously provide respective radio frequency signal derived from the common local oscillator signal to the plurality of radar radio heads via the plurality of waveguides.

Abstract: A method for processing radar signals includes emitting a first radar signal via a transmitting antenna of a first radar unit, where the first radar signal is phase modulated using a first code and a first frequency offset is added to at least a portion of the first radar signal, and emitting a second radar signal via a transmitting antenna of a second radar unit, where the second radar signal is phase modulated using a second code. The first code and the second code are orthogonal to each other and the first radar unit and the second radar unit are loosely coupled with each other. The method further includes receiving a combined radar signal via a receiving antenna of the first radar unit, where the combined radar signal comprises a reflections of the first and the second radar signals, and processing the combined radar signal at the first radar unit.

Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.

Abstract: A radar device comprises a data communication input interface configured to receive a data clock signal for a data bus and an analog to digital converter configured to sample a signal at time instants given by a sampling clock signal. In an implementation, a sampling clock generation circuit is configured to generate the sampling clock signal based on the data clock signal.

Abstract: One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.

Abstract: A radar device comprises a data communication input interface configured to receive a data clock signal for a data bus and an analog to digital converter configured to sample a signal at time instants given by a sampling clock signal. In an implementation, a sampling clock generation circuit is configured to generate the sampling clock signal based on the data clock signal.

Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.

Abstract: A radar device includes a radar reception circuit configured to provide an analog radar signal by means of a radio frequency (RF) radar signal received by an antenna being downconverted into a baseband frequency. The radar reception circuit further includes an analog-to-digital converter, to which the analog radar signal is fed and which is configured to digitize said analog radar signal and to provide it as a digital radar signal, and also a digital multiplier configured to multiply the digital radar signal by a digital window signal, as a result of which a windowed radar signal is provided. A window generator is configured to calculate the digital window signal by evaluating one or more polynomials. The radar device further includes a processor configured to further process a plurality of signal blocks of the windowed radar signal, signal block by signal block.

Abstract: One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.

Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.

Abstract: One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.

Abstract: A radar circuit for controlling a radar antenna in a vehicle comprises an antenna connection for connection of a radar antenna, a radar circuit for transmission and reception of a radar signal, wherein the radar circuit is connected to the antenna connection. A test circuit to test the connection of the radar antenna is provided.

Abstract: A method for processing radar signals includes emitting a first radar signal via a transmitting antenna of a first radar unit, where the first radar signal is phase modulated using a first code and a first frequency offset is added to at least a portion of the first radar signal, and emitting a second radar signal via a transmitting antenna of a second radar unit, where the second radar signal is phase modulated using a second code. The first code and the second code are orthogonal to each other and the first radar unit and the second radar unit are loosely coupled with each other. The method further includes receiving a combined radar signal via a receiving antenna of the first radar unit, where the combined radar signal comprises a reflections of the first and the second radar signals, and processing the combined radar signal at the first radar unit.

Abstract: A radar system for a vehicle includes an antenna element installable at an outer shell of the vehicle, a dielectric waveguide, and a radar circuit configured to communicate with the antenna element via the dielectric waveguide.

Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.

Abstract: A circuit comprises a transmitter to provide a transmit signal. The circuit also comprises a coupler element to receive the transmit signal at an input port, to provide a first representation of the transmit signal at an antenna port and a second representation of the transmit signal at a testing port. The circuit further comprises a monitoring receiver unit. The monitoring receiver unit is coupled to the testing port. Furthermore, the monitoring receiver unit is configured to determine a characteristic of the second representation of the transmit signal.

Abstract: One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.

Abstract: A circuit comprises a transmitter to provide a transmit signal. The circuit also comprises a coupler element to receive the transmit signal at an input port, to provide a first representation of the transmit signal at an antenna port and a second representation of the transmit signal at a testing port. The circuit further comprises a monitoring receiver unit. The monitoring receiver unit is coupled to the testing port. Furthermore, the monitoring receiver unit is configured to determine a characteristic of the second representation of the transmit signal.

Abstract: A circuit comprises a transmitter to provide a transmit signal. The circuit also comprises a coupler element to receive the transmit signal at an input port, to provide a first representation of the transmit signal at an antenna port and a second representation of the transmit signal at a testing port. The circuit further comprises a monitoring receiver unit. The monitoring receiver unit is coupled to the testing port. Furthermore, the monitoring receiver unit is configured to determine a characteristic of the second representation of the transmit signal.

Abstract: The present disclosure relate to a receiver system that removes unwanted signal components from a received signal based upon signal information from previous received signals. The receiver system has a signal generator that generates multiple signal patterns. One of the multiple signal patterns is provided to a transmit antenna that wirelessly transmits the signal pattern. A receive antenna port receives a reflected signal comprising a time-shifted version of the signal pattern and provides the reflected signal to a reception path. A feedback path extends from the reception path to a signal correction element, which selectively generates a correction signal that reduces unwanted signal components in the reflected signal. The signal correction element generates the correction signal from compensation parameters stored in a memory, which correspond to previously received reflected signals comprising the signal pattern, so that the correction signal can be used to reduce unwanted signal components in real time.