An antenna system mounted in a vehicle, according to the present invention, comprises: a radiator for transferring, through an upper opening, a signal which is applied through a lower opening; a coupling patch disposed on an upper substrate so as to be spaced apart from the upper opening by a predetermined interval so as to enable the coupling of the signal which has been transferred through the upper opening; and a first antenna connected to the coupling patch so as to make surface contact therewith, and comprising a shorting bar for connecting a ground layer of a lower substrate. The antenna system may further comprise, apart from the first antenna, a second antenna disposed in the antenna system.

Embodiments of this application disclose an antenna. The antenna may be applied to the field of automatic driving and the field of vehicle-to-everything, and the antenna includes a first radiating element and a first feed line. A first end of the first feed line is connected to the first radiating element. The first radiating element and the first feed line are arranged on a same surface of a dielectric substrate. The first feed line includes a first feed line segment, and an acute angle between the first feed line segment and a current direction of the first radiating element is greater than or equal to 20 degrees, and is less than or equal to 70 degrees. A feeding manner of the antenna is parallel feeding.

A processing unit analyzes a reception signal to calculate, for every plurality of receiving antennas, a velocity spectrum in which a frequency is associated with a velocity at which the phase of the reception signal is changed at every cycle period. The processing unit extracts, as a group of identical object peaks, peaks that are generated on a velocity spectrum due to an identical object and that are identical in number to transmitting antennas. The processing unit determines, for each of the plurality of peaks constituting the group of identical object peaks, whether there is power variation among a plurality of the receiving antennas. The processing unit calculates an orientation of the object except for virtual receiving antennas included in a plurality of virtual receiving antennas and formed by the transmitting antennas corresponding to the peaks determined to involve the power variation.

A radar sensing system for a vehicle includes a radar sensor disposed at the vehicle so as to sense exterior of the vehicle. The radar sensor includes a plurality of transmitters that transmit radio signals and a plurality of receivers that receive radio signals. The received radio signals are transmitted radio signals that are reflected from an object. A processor is operable to process an output of the receivers. The radar sensor includes a printed circuit board having circuitry disposed thereat. The radar sensor includes a radome. At least some of the antennas are embedded or encapsulated in the radome.

Examples disclosed herein relate to a range adaptable antenna system for use in autonomous vehicles. The antenna system has a connector and a transition layer to receive an RF transmission signal from a transmission signal controller, a range adaptable power divider layer coupled to the connector and transition layer to divide the RF transmission signal into a plurality of transmission signals to propagate through an array of transmission lines, with a set of transmission lines from the array of transmission lines having a set of switches, an RFIC layer having a plurality of phase shifters to apply different phase shifts to the plurality of transmission signals and generate a plurality of phase shifted transmission signals, and an antenna layer having an array of superelements for radiating the plurality of phase shifted transmission signals, wherein a set of superelements is connected to the set of switches in the range adaptable power divider layer for deactivation.

An integrated radar circuit comprising: a first substrate, of a first semiconductor material, said first substrate comprising an integrated transmit and receive radar circuit; a second substrate, of a second semiconductor material, said second substrate comprising at least on through-substrate cavity having cavity walls; at least one discrete transistor chip, of a third semiconductor material, said at least one discrete transistor chip having chip walls and being held in said at least one through-substrate cavity by a metal filling extending from at least one cavity wall to at least one chip wall; a conductor on said second substrate, electrically connecting a portion of said integrated transmit and receive radar circuit to a discrete transistor on said at least one discrete transistor chip.

A system for an antenna for very low frequency communication includes a surface platform that is configured to move on a surface or to be stationary on the surface, a first conductive cable having a first end coupled to the surface platform, wherein the first conductive cable is electrically conductive, and an aerial platform coupled to a second end of the first conductive cable, wherein the aerial platform comprises an electrically conductive portion electrically coupled to the first conductive cable, wherein for a moving surface platform the aerial platform is towed and has an elevation above the surface, and wherein for a stationary surface platform the aerial platform flies an orbital path above the surface platform.

A train positioning method includes acquiring first device identification information at an antenna; acquiring train positioning information; after determining the first device identification information is trustworthy, storing the first device identification information and the positioning information in a non-volatile memory; after awakening the train from dormancy mode, receiving second device identification information using the antenna; according to the received second device identification information and the first device identification information from the memory, determining whether, after being awakened, the train is at the same position as before entering dormancy mode; upon determining that, after awakening, the train is at the same position as before entering dormancy mode, determining the current position and direction of the train match positioning information in the memory, and completing positioning of the train. This ensures the usage experience of users of a train. An apparatus, a system, and a computer-readable medium are also provided.

An antenna array for a high frequency device includes a plurality of antenna elements used for a radar device and arranged in a two-dimensional array in a predetermined area. The plurality of antenna elements includes grouped on-elements and single on-elements with specific distance for grating lobe cancellation, each of them is electrically connected to a phase shifter. The on-elements are arranged such that density of the on-elements at a center portion in the two-dimensional array is high and density of the on-elements at four corners in the two-dimensional array is low.

A signal emitting apparatus provided in a vehicle to which power is transferred from a ground side power supplying apparatus by noncontact, includes: a signal emitting device for emitting a signal including information relating to the vehicle wirelessly toward the ground side power supplying apparatus; an outside environment acquiring part for acquiring information relating to an outside environment at surroundings of the ground side power supplying apparatus; and a control part for controlling the signal emitting device. The control part changes a mode of wireless signal emission of the signal emitting device in accordance with the outside environment.