A radar sensor for a vehicular radar sensing system includes a housing structure and at least one printed circuit board (PCB). The housing structure includes a front housing and a rear housing. The PCB is accommodated between the front housing and the rear housing in a cavity established when the front housing and the rear housing are joined together. The rear housing may be joined to the front housing via an intermediate frame disposed between the front housing and the rear housing, with the rear housing secured to the intermediate frame via a plurality of fasteners and with the front housing secured to the intermediate frame via welding.

A radio frequency (RF) circuit includes an input terminal configured to receive a reception signal from an antenna; an output terminal configured to output a digital output signal; a receive path including a mixer and an analog-to-digital converter (ADC), wherein the receive path is coupled to and between the input and output terminals, wherein the receive path includes an analog portion and a digital portion, and wherein the ADC generates a digital signal based on an analog signal received from the analog portion; a test signal generator configured to generate an analog test signal injected into the analog portion of the receive path; and a digital processor configured to receive a digital test signal from the digital portion, the digital test signal being derived from the analog test signal, analyze a frequency spectrum of the digital test signal, and determine a quality of the digital test signal.

A system comprises a personal device such as one used by law enforcement, and a housing containing a portable radar system with both a ranging resolution and lateral resolution sufficient to detect an object concealed on a person (e.g., one that operates in the THz range), where the housing is configured to be mounted in contact with the personal device such that when mounted, the combined handheld device and housing have a form factor that allows it to retain its characteristic as a personal device, and where the portable radar system is configured to, when in operation, emit a radar beam and to receive a reflection of the emitted radar beam.

A radar antenna assembly suitable to mount atop a vehicle as part of a radar system for the vehicle includes a horizontal array and a vertical array. The horizontal array is configured to preferentially detect objects in a forward area and a rearward area about the vehicle. The vertical array is configured to preferentially detect objects in a leftward area and a rightward area about the vehicle. The horizontal array and the vertical array cooperate to detect an object in a panoramic area that surrounds the vehicle.

An earphone device includes a housing comprising a top region and a bottom region, an acoustic transducer disposed in the bottom region of the housing, and a radar system disposed in the top region of the housing. The radar system includes a first side and an opposite second side. The radar system is configured to detect a first object located on the first side of the radar system, and detect biometric data from a second object located on the second side of the radar system.

A detection apparatus, a method for manufacturing a detection apparatus, and a terminal including a detection apparatus are disclosed. The detection apparatus integrally designs a vehicle skin and a radar device, to eliminate an installation process of a radar device and auxiliary mechanical parts in a vehicle equipment production line, and reduce management of installed accessories. In addition, a radome of a radar and a vehicle skin are combined into one, which is equivalent to eliminating a radome of a conventional radar, thereby obtaining better millimeter-wave propagation performance.

Automotive radar methods and systems for enhancing resistance to interference using a built-in self-test (BIST) module. In one illustrative embodiment, an automotive radar transceiver includes: a signal generator that generates a transmit signal; a modulator that derives a modulated signal from the transmit signal using at least one of phase and amplitude modulation; at least one receiver that mixes the transmit signal with a receive signal to produce a down-converted signal, the receive signal including the modulated signal during a built-in self-test (BIST) mode of operation; and at least one transmitter that drives a radar antenna with a selectable one of the transmit signal and the modulated signal.

A method of transmitting and receiving a radar signal is disclosed. The method includes: receiving a first chirp signal output by a second radar sensor located outside an electronic device, wherein the receiving is performed by a first radar sensor of the electronic device, changing an operation mode of the first radar sensor from a detection mode to a reception mode, based on the received first chirp signal, receiving a second chirp signal generated by the second radar sensor, through a receiver of the first radar sensor, according to the change to the reception mode, and obtaining information about at least one object located within a specified proximity of the electronic device, based on the received second chirp signal. The second chirp signal is generated based on the first chirp signal and a first response signal corresponding to the first chirp signal.

Provided is an antenna apparatus which is capable of improving a gain in a specific direction, reducing an unnecessary gain in an angle range, and reducing its height. A radome 220 is formed such that a central portion positioned above a patch array antenna 130 is formed in different shapes in an outer wall and an inner wall. The central portion of the outer wall of the radome 220 is formed in a flat shape, and thus the height of the radome 120 is reduced. On the other hand, the center portion of the inner wall of the radome 220 is formed such that a radome thickness at a position of the radome 220 in directions in which an angle θ is about −45° and about +45° when viewed from the center of the patch array antenna 130 changes stepwise.

A frequency modulated continuous wave (FMCW) radar system includes an antenna array having C antennas where (C=A+B−1), a first integrated circuit (IC) device including A first sensor inputs, and a second IC device including B second sensor inputs. The first sensor inputs are coupled to a first A of the antennas, and the second sensor inputs are coupled to a last B of the antennas such that a common one of the first sensor inputs and a common one of the second sensor inputs are both coupled to a common antenna. Each IC device receives reflected signals on each sensor input, and mixes the reflected signals to associated baseband signals based upon a local oscillator (LO) signal. Each LO signal has a different phase shift. The LO signals are based upon a common LO signal.