149results about "Linear waveguide fed arrays" patented technology

The present disclosure relates to an antenna layer (1) having a rear face (2) and a front face (3) and a method for producing an antenna layer (1). The antenna layer (1) comprises at least two waveguide channels (4) extending at the rear face (2), each comprising at least one waveguide hole (5) arranged at the front face (3) for transmitting and / or receiving signals. The waveguide channels (4) each comprise at least one radiation opening (6) which is arranged in the antenna layer (1) and which is interconnected to the waveguide aperture (5) by at least one radiation channel (7). A parting line (8) is arranged in the at least one radiation channel (7) between the rear face (2) and the front face (3), which parting line (8) is spaced apart from the at least one radiation opening (6) towards the at least one waveguide hole (5) by a distance (D) and preferably extends circumferentially within the at least one radiation channel (7). The present disclosure also relates to an antenna assembly (17) comprising the antenna layer (1) and an antenna arrangement (23) comprising the antenna assembly (17).

An antenna device for automotive radar applications includes a printed circuit board having a front face and a back face and an electronic component which is interconnected to the printed circuit board and an antenna layer having a front face and a back face, which back face is interconnected to the front face of the printed circuit board. At least one waveguide aperture is interconnected to the front face of the antenna layer and is communicatively connected to the electronic component by at least one waveguide channel, wherein the at least one waveguide channel comprises a conductive surface for guiding an electromagnetic field between the electronic component and is formed by a recess arranged between the back face of the antenna layer and the front face of the printed circuit board.

An array antenna (100) having a layered configuration. The array antenna comprises a radiation layer (110) comprising a plurality of radiation elements (111) and a distribution layer (120) facing the radiation layer. The distribution layer is arranged to distribute a radio frequency, RF, signal to the plurality of radiation elements. The distribution layer comprises at least one distribution layer feed (121) and at least one first waveguide (122) arranged to guide the RF signal between at least one distribution layer feed and at least one radiation element. The array antenna further comprises at least a second waveguide (130) connected to at least one distribution layer feed (121). Any of the first (122) and the second (130) waveguides comprises plastics with a first type of surface treatment (313), where the first type of surface treatment comprising metallization. At least one radiation element is a dummy element terminated by an attenuation section, where the attenuation section is arranged on any of the waveguides (122, 130) connected to the dummy element and that comprises plastics. The attenuation section comprises a second type of surface treatment (314) arranged to attenuate the RF signal.

A microstrip patch log periodic antenna (MSPLPA) may include a ground plane, a dielectric material, a printed circuit board comprising a microstrip patches. Each of the microstrip patches may be configured to transmit and / or receive signals. The dielectric material may be disposed between the ground plane and the printed circuit board. Each of the microstrip patches may be frequency scaled.

A single-layer broadband vertically polarized endfire magnetoelectric dipole (ME-dipole) antenna and an antenna array. The main radiator of this antenna is a substrate-integrated closed loop, which consists of two horizontal metallic strips printed on the upper and lower surfaces of substrate and a pair of vertical metallic vias. Excited by a double-sided parallel-strip line at the center of the loop, the metallic vias function as electric dipoles while the entire loop aperture works as magnetic dipole. To facilitate integration, this magnetoelectric dipole loop antenna is fed by an open-ended substrate integrated waveguide (SIW), which also works as a backed cavity to enhance the front-to-back ratio. Moreover, rectangular slots are etched at the edges of the SIW aperture to further improve the front-to-back ratio and also the cross-polarization performance. Thus, a vertically polarized endfire ME-dipole loop antenna with a low-profile structure, broad bandwidth, and stable radiation performance is achieved.

A radar module according to an embodiment includes a substrate; a communication device disposed on the substrate; an antenna unit disposed on the substrate; and a connection line disposed on the substrate and connecting the communication device and the antenna unit, and including at least one stub, wherein the antenna unit includes: a radiator including a feeding slot; and a feeding line connecting the connection line and the radiator, and a direction of a beam radiated from the antenna unit is adjusted by controlling a first variable related to the feeding slot and a second variable related to the stub.

A circuit-board interposer includes contacts on a top surface and a bottom surface and includes a millimeter-wave coaxial transition structure formed using contacts on the top surface and vias extending into the interposer. A first via extends into the interposer to a first depth and is surrounded by additional vias that penetrate the interposer to a second depth smaller than the first depth. The interposer also includes a hollow conductive waveguide structure formed within the interposer that extends from the second depth to a third depth that has a first end and a second end. The first via extends into the waveguide at the first end and an aperture is present at the second end. The coaxial transition and the waveguide together are configured to couple millimeter-wave energy from a feed contact on the top surface of the interposer and direct it to the aperture.

The present disclosure is directed to an antenna device (1) comprising a printed circuit board (2) and an electronic component (3) disposed on the printed circuit board (2). The antenna device (1) comprises at least two individual antenna elements (12) interconnected to the electronic component (3) and configured to transmit and receive signals. The antenna elements (12) each comprise at least one waveguide channel (9) interconnecting them in an antenna assembly (6). A first waveguide aperture (10) is disposed on a rear surface (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 signals. A second waveguide aperture (11) is disposed on a front surface (17) of the waveguide assembly (6) and is also configured to transmit and / or receive signals.

A chip-implementation of a millimeter wave MIMO radar comprises transmitters for transmitting short bursts of digitally modulated radar carrier signals and receivers for receiving delayed echoes of those signals. Various signal formats defined by the number of bits per transmit burst, the transmit burst duration, the receive period duration, the bitrate, the number of range bins, and the number of bursts per scan, facilitate the choice of modulating bit patterns such that when correlating for target echoes over an entire scan, the correlation codes for different ranges and different transmitters are mutually orthogonal or nearly so as compared to a random selection of codes. In the event of imperfect orthogonality, the subtraction of strong already-detected target signals allows for better detecting of weaker signals or moving targets that are rendered non-orthogonal by their Doppler shift.

The application discloses a kind of based on rectangular waveguide lens terahertz two-dimensional multi-beam antenna, including two-dimensional feed array, rectangular metal cavity and rectangular waveguide lens;Two-dimensional feed array includes first metal substrate, first metal substrate is provided with several rectangular waveguide feed units, each rectangular waveguide feed unit is connected with feed port;Rectangular waveguide lens includes second metal substrate, second metal substrate is provided with several rectangular waveguide phase shift units, and the rectangular waveguide phase shift units of adjacent row are mutually staggered distribution.The application is realized two-dimensional multi-beam scanning by the way of two-dimensional feed array bias feed, with the advantages of two-dimensional scanning angle and gain can be arbitrarily designed, large bandwidth advantage.The application adopts rectangular waveguide array to form metal lens, with the advantages of low high-frequency loss, small size;At the same time, through waveguide array staggered and period compression, mirror image grating lobe is eliminated, with the advantages of low grating lobe, large scanning angle.

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.

A glass substrate architecture for mounting RF components may be configured for heat dissipation. Existing millimeter wave radiofrequency (RF) systems mount the radiofrequency integrated circuits (RFICs) on a printed circuit board on the opposite side of a heat sink, making it difficult to dissipate heat away from the RFICs during operation. This architecture mounts the RFICs directly to a back side of a glass waveguide substrate, and thermally couples the top side of the RFICs to a conductive pad on the underlying printed circuit board with a thermal pathway to the heatsink. This leads to a much more effective dissipation of heat away from the RFICs and eliminates the need for additional cooling systems or throttling the performance of the radar system.

Slotted antenna device, comprising: a first electrically conductive component (110) with a first electrically conductive surface (110b) on a front side and a second electrically conductive surface (110a) on a back side and with at least one slot (112) extending from the first electrically conductive surface (110b) to the second electrically conductive surface (110a); a second electrically conductive component (120) on the back side of the first electrically conductive component (110), wherein the second electrically conductive component (120) has a third electrically conductive surface (120a) on the front side, the third electrically conductive surface (120a) being opposite to the second electrically conductive surface (110a); a rib-shaped waveguide element (122) on the second electrically conductive surface (110a) of the first electrically conductive element (110), wherein the waveguide element (122) has an electrically conductive waveguide surface (122a) that is opposite to the third electrically conductive surface (120a) and extends along the third electrically conductive surface (120a); and an artificial magnetic conductor on at least either the second electrically conductive surface (110a) or the third electrically conductive surface (120a), wherein the artificial magnetic conductor extends on both sides of the waveguide element (122), wherein the third electrically conductive surface (120a), the waveguide surface (122a) and the artificial magnetic conductor define a waveguide in an intermediate space extending between the third electrically conductive surface (120a) and the waveguide surface (122a); the waveguide element (122) has a first rib (122A) and a second rib (122B); one end of the first rib (122A) and one end of the second rib (122B) are opposite each other; viewed from a direction perpendicular to the waveguide surface (122a), at least one slot (112) is arranged between one end of the first rib (122A) and one end of the second rib (122B); which has at least one slot (112) through the first electrically conductive surface (110b) open to an external space and at least either a distance between the third electrically conductive surface (120a) and the waveguide surface (122a) or a width of the waveguide surface (122a) varies along a direction in which the waveguide element (122) extends.

A vehicular radar sensing system includes a radar sensor that includes a radiation slot sheet, a wave port sheet, and a waveguide sheet sandwiched between the radiation slot sheet and the wave port sheet. The sheets are joined together. The radiation slot sheet includes at least one transmitter that transmits radio signals and at least one receiver that receives radio signals. The waveguide sheet guides the transmitted radio signals from the radiation slot sheet to the wave port sheet and guides reflected radio signals from the wave port sheet to the radiation slot sheet. The transmitted radio signals are provided to the environment via at least one wave port of the wave point sheet. The reflected radio signals are received from the environment at the at least one wave port.

Multiband guiding structures for antennas and methods for using the same are described. In one embodiment, an antenna comprises: an antenna aperture with radio-frequency (RF) radiating antenna elements; and a center-fed, multi-band wave guiding structure coupled to the antenna aperture to receive a feed wave in two different frequency bands and propagate the feed wave to the RF radiating antenna elements of the antenna aperture.

An antenna device is provided with a plurality of waveguide sections (20, 30), a partition wall section that partitions the plurality of waveguide sections, a plurality of radiation openings (50, 60) that radiate radio waves, and a distribution section (40) that distributes and propagates the radio waves to a plurality of waveguide paths. Each of the plurality of waveguide sections extends in a first direction (Dax), is formed in a row in a second direction (Dcr), and overlaps a position in the first direction of a connection section (21, 31) connected to an end of the distribution section on the other side in the first direction. The plurality of radiation openings are arranged such that the positions of the radiation openings of two adjacent waveguide sections in the first direction are shifted. The distribution section has a power supply opening in the second direction, is formed by being folded back from one side to the other side in the first direction so as to be able to propagate radio waves to the respective connection sections of two adjacent waveguide sections, and causes the phases of the radio waves propagating to the respective connection sections of the two waveguide sections to be opposite to each other.

An RF front-end module for a millimeter-wave radar is provided. By placing at least one receiving channel and at least one transmitting channel between two metal plates, both RF-connected to the chip and surrounded by several metalized through holes, and arranging several antenna slot gaps corresponding to each receiving and transmitting channel on the upper metal plate, the RF front-end module of the present disclosure offers wider beamwidth, larger reflection coefficient bandwidth, symmetrical radiation patterns, and a larger field of view, enabling advantages such as stable matching, efficient transmission, accurate targeting, and broad monitoring areas, especially suitable for high-precision, wide-angle radar antenna applications. Existing patch microstrip antennas are limited by size and simple structure and cannot achieve these effects. It's difficult to design a broadside antenna radar module with wide bandwidth, high performance, and a wide field of view using conventional patch microstrip antennas.

This electronic device comprises: a transmission antenna for transmitting a transmitted wave; a reception antenna for receiving a reflected wave, being the transmitted wave that has been reflected; a cover portion for covering at least a portion of at least one of the transmission antenna and the reception antenna; and a signal processing unit for detecting an object that reflected the transmitted wave, on the basis of at least one of a transmitted signal transmitted as the transmitted wave, and a received signal received as the reflected wave. At least a portion of at least one of the transmitted wave transmitted by the transmission antenna and the reflected wave received by the reception antenna is transmitted and / or received through the cover portion. A thickness of the cover portion is designed on the basis of magnitude squared coherence

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 provides an array antenna architecture for simplifying phase control. The array antenna architecture comprises a multilayer dielectric substrate, a metal waveguide and a radio frequency front-end module, the multi-layer dielectric substrate is provided with a plurality of antenna units and a plurality of low-resolution phase control units and can be combined to the metal waveguide pieces, and the radio frequency front-end module is electrically connected to the corresponding metal waveguide pieces and the multi-layer dielectric substrate so that each antenna unit can transmit / receive radio frequency signals. A plurality of function amplification units in the radio frequency front-end module are electrically connected to corresponding low-resolution phase control units, and the plurality of function amplification units are also electrically connected to an unequal-length transmission line framework, so that the array antenna framework can reduce the cost and the circuit complexity through the low-resolution phase control units, and meanwhile, the array antenna framework has the advantages that the structure is simple, the cost is low, and the cost is low. The aperiodicity of the initial phase excitation of the plurality of antenna units is changed through an unequal-length transmission line architecture.

ANTENNA DEVICE, TRANSMITTER, AND RADAR Various apparatus for providing an antenna device capable of achieving wide bandwidth are disclosed. The antenna device includes a dielectric substrate and a conductor pattern formed on the dielectric substrate. Herein, the conductor pattern includes an antenna array including a plurality of patch antennas connected in series, an input / output line feeding the antenna array, and a junction. The junction is interposed between the input / output line and a first patch antenna from the plurality of patch antennas located at an end of the antenna array connected to the input / output line. The junction is narrower than the first patch antenna and wider than a transmission line connecting adjacent patch antennas in the antenna array. (FIG. 2)

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 waveguide antenna assembly includes a lower housing and an upper housing. The lower housing is formed, at least in part, from a conductive material. The upper housing is coupled to the lower housing and is formed, at least in part, from a conductive material. The upper housing and the lower housing define a slot. A printed circuit board (PCB) is disposed within the slot. A PCB assembly includes the PCB, a first fin, and a microstrip feed line. The PCB includes a first side and a second side. The first side includes a first plurality of components arranged in a first circuit. The second side opposes the first side and includes a second plurality of components arranged in a second circuit. The first fin is arranged in the first circuit and defines a first long curve and a first short curve. The first long curve and the first short curve are disposed on the first side of the PCB. The microstrip feed line is connected to the first fin.

Micro stripline array antenna (1, 10, 40, 50) with a dielectric substrate (12) on the back of which a conductive grounding plate (11) is formed, and a stripline (13) formed on the dielectric substrate (12), wherein the strip conductor (13) comprises a feed strip line (3, 15, 43, 51) which is linear and extends in a predetermined direction of extension, and at least two radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a - 5d; 21a - 21v; 41a - 41c) of a predetermined length, wherein at least one of the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a - 5d; 21a - 21v; 41a - 41c) is connected to one side of the feed strip line (3, 15, 43, 51) and at least one of the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a - 5d; 21a - 21v; 41a - 41c) is connected to the other side of the feed line (3, 15, 43, 51), the longitudinal directions of the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a- 5d; 21a - 21v; 41a - 41c) are parallel to each other and are arranged at an angle other than 90° with respect to the direction of extension, the feed line (3, 15, 43, 51) has a partially or completely curved shape and extends completely in the direction of extension, so that the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a - 5d; 21a - 21v; 41a - 41c) are connected to the feed line (3, 15, 43, 51) at the same angle, and each of the sides of the feed line (3, 15, 43, 51) is connected to a plurality of the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a- 5d; 21a - 21v; 41a - 41c), characterized by the fact that the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a- 5d; 21a - 21v; 41a - 41c) which are connected to one side of the feed line (3, 15, 43, 51), are connected to areas of the feed line which correspond to the middle areas between adjacent two of the radiating antenna elements (6a - 6d; 22a - 22v; 42a - 42c, 5a- 5d; 21a - 21v; 41a - 41c) which are connected to the other side of the feed line (3, 15, 43, 51).

An antenna structure includes an input waveguide, a first output waveguide, and a second output waveguide. The first output waveguide is connected through a first Z-shaped slot to the input waveguide. The second output waveguide is adjacent to the first output waveguide. The second output waveguide is connected through a second Z-shaped slot to the input waveguide.

There is disclosed a reconfigurable antenna array comprising an RF feed, configured to receive RF signals from an RF source; a plurality of waveguide feed structures, each waveguide feed structure comprising a plurality of unit cells arranged end-to-end, each unit cell configured to transmit RF signals out of the unit cell; and an RF power distributor, operatively connected to said RF feed, configured to split the received RF signals into multiple channels and to allocate different channels to different respective waveguide feed structures, wherein each waveguide feed structure is configured to guide the RF signals of the channel allocated to the waveguide structure to the unit cells of the waveguide feed structure. Each unit cell comprises reconfigurable components configured to manipulate electromagnetic properties of the RF signals received by the RF feed and guided along the respective waveguide structure so as to control a radiation pattern of the antenna array.

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.

The invention relates to a waveguide antenna (10) for a radar sensor (46), comprising a waveguide substrate (12) having cavity structures (14) for transmitting radar waves within the waveguide antenna (10), an antenna surface (18) facing surroundings (16) of the waveguide antenna (10), at least one emission element (20) for emitting radar waves into the surroundings (16) of the waveguide antenna (10), said radar waves being polarized in a first direction (22) perpendicular to a normal direction (24) of the antenna surface (18), wherein at least regions of the antenna surface (18) comprise polarization means (34) for rotating the polarization of radar waves that were reflected in the surroundings (16) and are incident on the polarization means (34). The invention also relates to a radar sensor (46).