17results about "Linear waveguide fed arrays" patented technology

A mmWave radar sensor module is proposed, to have a specific structure enabling a 180° Field of View (FoV) with an affordable system cost. The proposed mmWave radar sensor module is put to use in passenger vehicles, commercial vehicles, automated guided vehicles (AGVs), as well as motorcycles and bikes, enabling a variety of application features: smart parking assistance, replacing PDC sensors, determining the distance, speed and angle of targets, including their tracking, detection of people, tracking of people, tailgate and door protection by restricting opening, gesture and kick sensing, and other applications. In the case of two-wheelers and three-wheelers, the same apparatus may cover also blind sport detection application in the affordable system manner.

The present disclosure relates to a radiation assembly, a waveguide antenna sub-arrays, and a waveguide array antenna. The radiation assembly for the waveguide array antenna comprises: a first radiation layer having a plurality of first radiation windows, each of the plurality of first radiation windows has a metal grid to divide the first radiation window into two radiation holes; and a second radiation layer having a plurality of second radiation windows, the plurality of second radiation windows correspond to the plurality of first radiation windows one to one, and the plurality of second radiation windows of the second radiation layer do not have any metal grid, wherein the thickness of the second radiation layer is greater than the thickness of the first radiation layer, and wherein the first radiation layer and the second radiation layer are manufactured independently of each other. The radiation assembly can enhance the polarization purity of the aperture radiation of the waveguide array antenna to which it belongs, so as to achieve a higher antenna cross polarization index.

An array antenna (100) having a layered structure. The array antenna includes a radiating layer (110) including a plurality of radiating elements (111) and a distribution layer (120) facing the radiating layer. The distribution layer is configured to distribute a radio frequency (RF) signal to the plurality of radiating elements. The distribution layer includes at least one distribution layer feed (121) and at least one first waveguide (122) configured to guide the RF signal between the at least one distribution layer feed and the at least one radiating element. The array antenna further includes at least one second waveguide (130) coupled to the at least one distribution layer feed (121). Either the first waveguide (122) or the second waveguide (130) includes a plastic having a first type of surface treatment (313), the first type of surface treatment including metallization. At least one of the radiating elements is a dummy element terminated by an attenuation section coupled to the dummy element and disposed in one of the plastic-containing waveguides (122, 130). The attenuation section includes a second type of surface treatment (314) configured to attenuate the RF signal.

The invention discloses a method for producing a waveguide antenna sensor component (100) for a radar sensor. The method comprises providing a waveguide antenna (102) in the form of a metallized plastics waveguide antenna (100) and producing a sensor housing (120), which surrounds the waveguide antenna (102), from plastic by means of injection moulding. The sensor housing (102) encompasses an edge portion (108) of the waveguide antenna (102) and has a front panel (122), which encloses a metallized front portion (106) of the waveguide antenna (102).

A radar for a vehicle may include a frame having a waveguide antenna embedded therein and extending in a direction crossing an extension direction of the waveguide antenna, a plated region covering at least a portion of the outer peripheral surface of the frame and formed of a metallic material, and an un-plated region not coated with the metallic material on one surface of the frame, wherein the un-plated region is located to be adjacent to the waveguide antenna. Therefore, the radar for the vehicle can improve the stability of an antenna pattern and a phase.

An antenna device (1) including a printed circuit board (2) and a thereon arranged electronic component (3). The antenna device (1) includes at least two individual antenna elements (12) which are interconnected to the electronic component (3) configured to transmit and receive a signal. The antenna elements (12) each include at least one waveguide channel (9) interconnecting in the antenna assembly (6). A first waveguide aperture (10) is arranged at a back face (16) of the antenna assembly (6). The first waveguide aperture (10) is interconnected to the electronic component (3) and configured to transmit and / or receive a signal. A second waveguide aperture (11) is arranged at a front face (17) of the waveguide assembly (6) and is also configured to transmit and / or receive a signal.

A set of radio frequency transmitting and receiving assemblies is disclosed, the set of assemblies includes a waveguide slot antenna assembly (100), the waveguide slot antenna assembly (100) comprising a set of numerous waveguide slot antennas, each set of waveguide slot antennas comprising an antenna feeding element that forms a set of numerous antenna feeding elements, and a circuit device (306) for transmitting and receiving radio frequency (RF) signals, the circuit device further comprising one or more circuit connection elements configured to form RF feeding connections with the antenna feeding elements of the numerous antenna feeding elements, the waveguide slot antenna assembly can be mounted on the circuit device in a number of different orientations, and certain of the antenna feeding elements form RF feeding connections with each of the circuit connection elements in each orientation.

RADAR sensor assemblies / modules, particularly those for vehicles. In some embodiments, the assembly may comprise a plurality of waveguides, each waveguide of the plurality of waveguides being defined by a waveguide groove. A slot may be positioned to extend along an axis of each of the plurality of waveguide grooves. Each of the waveguides may be further defined, at least in part, by a periodic feature that extends back and forth in a periodic manner along at least a portion of its respective waveguide and a plurality of periodic signal confinement structures, a first periodic signal confinement structure of which may extend adjacent to a first side of each of the plurality of waveguides, and a second periodic signal confinement structure which may extend along a second side of each of the plurality of waveguides opposite the first side.

The present invention relates to the field of antennas and introduces a switchable dual-band dual-polarized VICTS antenna system for satellite communication on-the-move. By adopting a layered structure, the present invention comprises a dual-band VICTS antenna subsystem, a dual-band dual-polarized polarization subsystem, an antenna radome, and a mechanical subsystem. The mechanical subsystem interfaces with the dual-band VICTS antenna subsystem and the dual-band dual-polarized polarization subsystem via motors and belts, enabling seamless integration and control. Further, the antenna system incorporates air gaps within the layer structure, with a supporting structure connecting to the mechanical subsystem through an adapter mechanism. By arranging the switchable dual-band dual-polarized VICTS antenna system in a layered manner, the present invention enhances both gain and bandwidth while enabling precise control over its operation. Furthermore, effective separation of frequency bands is achieved, contributing to reductions in size and cost.

Embodiments of the present application provide an antenna device, a radar, a detection device and a terminal, which can be applied to intelligent driving, auxiliary driving or automatic driving. The antenna device comprises a first antenna array, the first antenna array comprises at least one patch subunit, at least one antenna unit comprises a first antenna unit, the first antenna unit comprises a first patch subunit and a first feed subunit, the first patch subunit comprises at least two branches in a first direction in sequence, the at least two branches comprise a first branch and a second branch, and the length of the first branch in a second direction is smaller than the length of the second branch in the second direction. The antenna device utilizes the at least two branches with different lengths in the patch subunit to realize horizontal unimodal beam with the direction of the radiated signal being normal and horizontal bimodal beam with the direction of the radiated signal being located on both sides of the normal in different frequency bands, which is suitable for multi-scene application of vehicle-mounted millimeter wave radar and is simple and easy to realize.

Radiofrequency module, comprising: a first layer having an array of radiating elements (30), each radiating element having a cross section allowing for support of at least one wave propagation mode; a second layer forming a waveguide array; and a fourth layer forming a port array, the second layer being interposed between the first layer and the fourth layer, each waveguide being connected to a port on one side and to a radiating element on the other side in order to transmit a radiofrequency signal between this port and this radiating element, the pitch between two ports being different to the pitch between the radiating elements, so that the surface area of the first layer is different from the surface area of the fourth layer, the waveguides being curved.

A radar system for a vehicle includes: a processing device having multiple transmit outputs and multiple receive inputs; a main transmit antenna to transmit main radar waves essentially parallel to a road, and coupled to the processing device via a first transmit output; a main receive antenna to receive reflections of the main radar waves off objects, and coupled via a first receive input; a first street condition monitoring (SCM) transmit antenna to transmit first polarized radar waves essentially directed to the road at a first polarization, and coupled via a second transmit output; and a first SCM receive antenna to receive, at the first polarization, reflections of the polarized radar waves off the road, and coupled via a second receive input. The system can include second SCM transmit and receive antennas coupled via a third transmit output and a third receive input and operating at a second polarization.