2648results about "Radiating element housings" patented technology

A radar device which is installed in a vehicle or the like needs to detect a target at a short distance from several tens of centimeters to several tens of meters and, therefore, has a problem that a reflected wave from the target may be reflected by a front case of the radar device and then reflected by the target again to be received as a secondary echo by itself. To solve this problem, it is an object of the present invention to provide a radar device again that can prevent multi-reflection to accurately measure a distance to a target in a short range. In a radar device according to the present invention, a surface of a frame body provided around a transmitting antenna and a receiving antenna is shaped so that a reflected wave from a target may not be returned in a direction in which a transmitting wave is transmitted from the transmitting antenna.

An antenna assembly can include a case, a first ground plane, and a multi-band multi-element antenna. The case can include a body portion and a door pivotably coupled to the body portion. The first ground plane can be coupled to the body portion and can divide the case into a first internal volume and a second internal volume. The multi-band multi-element antenna can include at least one multi-band radiating element coupled to a top side of the first ground plane. The antenna assembly can include a tablet computer and / or a display screen.

A wearable electronic device can include a sidewall housing defining an internal volume and a band slot configured to receive a securement band. The sidewall housing can include a radio-frequency (RF)-transparent window defining the band slot, a rear cover coupled to the sidewall housing with the rear cover including metal, an antenna resonator disposed in the internal volume adjacent the RF-transparent window, and a conductor electrically coupling the rear cover to the antenna resonator.

This is directed to an electronic device enclosure. The enclosure includes an outer periphery member forming an outer surface of a device, and to which an internal platform is connected. Electronic device components can be assembled to one or both surfaces of the internal platform. The enclosure can include front and back cover assemblies assembled to the opposite surfaces of the outer periphery member to retain electronic device components. One or both of the cover assemblies can include a window through which display circuitry can provide content to a user of the device.

The invention discloses a metasurface array antenna housing, belongs to the technical field of electromagnetic wave regulation and control, and solves the problem of how to improve the transmittance and absorptivity of a metasurface to electromagnetic waves. Electromagnetic waves with different frequencies resonate on the first metasurface wave-absorbing layer and the second metasurface wave-absorbing layer respectively, so that the electromagnetic waves are absorbed by the lumped resistor. And the metasurface wave-transmitting layer re-radiates electromagnetic waves of a communication frequency band to enable the electromagnetic waves to penetrate through the metasurface unit, and meanwhile, the surface of the metasurface wave-transmitting layer can serve as a metal floor of the first metasurface wave-absorbing layer and the second metasurface wave-absorbing layer due to copper coating. The antenna can be widely used in the scenes of radar stealth, communication antenna integration, electromagnetic compatibility, wireless energy transmission and the like, and has a good application prospect.

A device may include a radome. A device may include a spacer coupled to the radome. A device may include a first antenna element formed on a first printed circuit board (PCB) and configured to be housed by the radome, wherein the first antenna element is a multi-band antenna element comprising: one or more low-band radiating elements, one or more mid-band radiating elements; and one or more high-band radiating elements. A device may include a second antenna element formed on a second PCB and configured to be housed by the radome, the second antenna element comprising one or more WiFi antenna elements. A device may include a third antenna element formed on a third PCB and configured to be housed by the radome, the third antenna element comprising one or more global positioning system (GPS) antenna elements.

An antenna assembly may include at least two PCB bases. Each PCB base may include a first multi-band antenna element, and a second multi-band antenna element, formed on each PCB base. The first multi-band antenna element and the second multi-band antenna elements can include one or more low-band radiating elements, one or more mid-band radiating elements; and one or more high-band radiating elements.

The invention discloses a phased-array antenna, the phased-array antenna comprises a plurality of antenna module units, each antenna module unit comprises a PCB and an integrated radome module, and the integrated radome module is arranged on the surface of the PCB; a feed network, a dielectric substrate and an antenna radiation patch are arranged on the PCB, and the PCB is used for realizing feed and partial radiation functions; the integrated antenna housing module comprises a honeycomb support, an antenna patch, a PET film and an antenna housing, the antenna patch is etched on the PET film, the honeycomb support, the PET film and the antenna housing are mutually connected to form an integrated structure, and the integrated antenna housing module is used for realizing wave transmission, bandwidth broadening and impedance matching. According to the phased-array antenna, the use cost of PCB materials is reduced, and the problem that the electrical performance of the phased-array antenna is reduced due to dielectric loss caused by excessive use of PCB materials is solved.

A method for manufacturing a nozzle cap, the method including attaching an antenna printed circuit board (“PCB”) strip to an inner cover surface of an antenna cover; and inserting the antenna cover into a scallop defined by a circumferential wall of a cap body to position the antenna PCB strip between the antenna cover and the circumferential wall, the circumferential wall defining an outer wall surface, the antenna cover covering the scallop, the scallop extending radially inward into the circumferential wall relative to a first portion and a second portion of the outer wall surface, the scallop circumferentially positioned between the first portion and the second portion of the outer wall surface.

An antenna, an antenna assembly, and a base station includes a radome, a first antenna portion, and a second antenna portion. The first antenna portion is disposed inside the radome, and the second antenna portion is coupled to the first antenna portion, disposed outside the radome, and exposed to a surrounding environment. In this way, the radome does not need to cover the entire antenna, but covers only a portion of the antenna. Therefore, a wind load acting on a support structure by using the radome can be reduced. In addition, a cavity is provided to accommodate transmission lines of the antenna together, so that use of a connecting device such as a jumper can be reduced or even avoided, to reduce a transmission loss of the antenna.

A vertically-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: first and second slots, and a metal flooded ground plane, first and second antenna PCBs forming four dipole pairs, the first and second antenna PCBs mounted to the host PCB, respective first to third ground connection fillet tabs, the first and second tabs being on an opposite side of the host PCB from the third tab, the first to third tabs being on a same side of its antenna PCB, an amplitude taper on each antenna PCB at transitions between the host and antenna PCBs, including: a first transmission line splitting off into a second transmission line and a third transmission line, the second transmission line feeding two antennas to form one dipole pair, the third transmission line stepping down using a quarter-wave transformer, and a radio frequency (RF) connector to receive a power supply.

A radio wave lens includes a first surface, a second surface, and an optical axis passing through the first surface and the second surface. The first surface has concave portions or convex portions provided concentrically or symmetrically with respect to the optical axis in plan view, and a depth of each of the concave portions or a height of each of the convex portions is set according to a distance from the optical axis.

The metasurface array antenna housing comprises a plurality of array units of the same structure, each array unit sequentially comprises a first lightning protection layer from top to bottom, and each first lightning protection layer comprises four copper metal cylinders and a lightning protection top layer drainage metal patch; the second metasurface wave absorbing and transmitting layer comprises a first dielectric substrate, and four quasi-rectangular patches, four lumped resistors, four quasi-triangular patches and four quasi-square rings which are arranged on the upper surface of the first dielectric substrate; the third metasurface wave-transparent layer comprises a square metal patch, and a first circular ring and a second circular ring are etched on the square metal patch. Lightning is guided to the third metasurface wave-transparent layer through the first lightning protection layer, the lightning is conducted to other areas through the metal patch, damage of the lightning to the antenna housing is effectively avoided, and the antenna housing can directly replace a lightning protection strip for use; the structural size is greatly reduced, the angle stability is improved, and integration is facilitated; the copper-clad surface of the third metasurface wave-transparent layer can be used as a metal back plate of the second metasurface wave-absorbing layer, and structural multiplexing is achieved.

According to the embodiments described herein, system and methods for determining relative pose of materials handling vehicles in an industrial environment may include utilizing ultra-wideband (UWB) antenna array systems respective mounted on the materials handling vehicles to send mutually received information to determine the relative pose between the vehicles, determining one or more fields of each materials handling vehicle, and determining one or more overlapping fields between the materials handling vehicles based on the determined one or more fields and the relative pose. A vehicle control may be implemented based on the determined relative pose and the overlapping fields as a field enforcement, such as a control action to avoid collision between the vehicles.

The invention discloses a three-dimensional woven radome preform woven and formed by a multi-heald eye device, weaving equipment with a plurality of independent controllable heald eyes is adopted, and the method comprises the following steps: S1, a weaving mold is provided, and the surface of the weaving mold is provided with a three-dimensional curved surface corresponding to the shape of a target preform; s2, a warp system is led to the weaving mold and penetrates through the independent controllable heald eye. By adopting a multi-heald-eye independent driving control scheme, the limitation of the number of healds of traditional fixed heald eye equipment is broken through, the weaving requirement of a large-size conical structure with the bottom maximum diameter being about 600mm and the axial length being about 900mm can be accurately met, meanwhile, yarns are arranged along the three-dimensional curved surface of the mold in a shape following mode, secondary preforming is conducted without the help of the mold, and the production efficiency is improved. According to the method, the size deviation and the structure damage caused by secondary processing are avoided, the production period is remarkably shortened, the economical efficiency and the efficiency of batch production are improved, and the weaving feasibility and the structure consistency of the large-size variable-thickness structure are ensured.

The invention relates to the technical field of array antennas, and discloses a common-caliber layout-based ultra-wideband array antenna, which comprises a low-frequency unit and a high-frequency unit which are arranged based on a common caliber, and is characterized in that the working frequency of the low-frequency unit covers an fmin-f0 frequency band, and the working frequency of the high-frequency unit covers an f0-fmax frequency band. The low-frequency unit is a broadband dual-polarized antenna, a uniform tight coupling array distributed at equal intervals is formed by adopting a tight coupling principle, and the unit interval is calculated based on a grating lobe suppression condition at the frequency f0. The high-frequency unit is a miniaturized broadband dual-polarized antenna and adopts a sparse array form; the initial unit spacing and the unit number of the sparse array are calculated based on the grating lobe suppression condition at the highest frequency f2 of the f1-f2 frequency band with the side lobe requirement between the f0-fmax frequency bands. The ultra-wideband array antenna gives consideration to full-band array performance, can provide sufficient space for active circuit arrangement, and effectively reduces power consumption and cost.

The present invention discloses a general-purpose low-profile active array antenna system, which includes an antenna module, a multi-functional structural frame, a power divider module, a beam control module, a radio frequency connector, and a low-frequency connector. The multi-functional structural frame includes at least two cavities, and the partition between the two cavities includes a plurality of radio frequency connection holes and a plurality of low-frequency connection holes. The antenna module is connected to one of the cavities, the power divider module and the beam control module are connected to the other cavity. The radio frequency connector is located in the radio frequency connection hole, and the radio frequency connector connects the antenna module and the power divider module. The low-frequency connector is located in the low-frequency connection hole, and the low-frequency connector connects the antenna module and the beam control module. The beneficial effects of the present invention are as follows: the system composition is simplified, which is beneficial to the generalization, serialization, and standardization design of modules, and is more conducive to the realization of low-cost design of active array antennas.

The invention provides an antenna system and a base station antenna feeder system. The antenna system comprises a first frequency band radiation unit array, a frequency selection surface and a second frequency band radiation unit array which are arranged in sequence, that is, the frequency selection surface is arranged between the first frequency band radiation unit array and the second frequency band radiation unit array. The frequency selection surface is used for reflecting signals of the first frequency band radiation unit array and transmitting signals of the second frequency band radiation unit array. The phase shifter is connected with the first frequency band radiation unit array so as to be used for feeding the first frequency band radiation unit array. The phase shifter comprises a cavity, the cavity is arranged at the edge of the frequency selection surface, and the first extension direction of the cavity is consistent with the second extension direction of the first frequency band radiation unit array. The antenna system at least comprises the radiation unit arrays of the two frequency bands, the signal quality of the antenna system is good, and the integration level is high. Further. The radiation unit arrays of different frequency bands can be independently evolved.

An antenna substrate, electronic package and manufacturing method thereof are provided in which an antenna substrate including a silicon core layer, a circuit structure and conductive pillars, and the circuit structure has a first dielectric layer, a first circuit layer and a first antenna portion. The circuit structure and the conductive pillars are formed on opposite sides of the silicon core layer, and the antenna substrate is stacked and bonded to a circuit board having a second antenna portion through the conductive pillars. Thereby, the present disclosure can thin a thickness of the antenna substrate and the electronic package, or precisely control a distance between the antenna substrate and the circuit board.

The invention relates to an organic wave-transparent composite material for improving high-temperature dielectric loss stability based on high-temperature oxygen release and carbon removal and a preparation method thereof.The organic wave-transparent composite material is prepared by selecting polymethyl ethoxy siloxane (PMES) as a precursor, trifunctional rigid silane as a cross-linking agent, polymethyl ethoxy siloxane (PMES), trifunctional rigid silane, a solvent ethanol and a catalyst through a hydrothermal method. The preparation method comprises the following steps: preparing an organic silicon resin solution by mixing, and adding ceric nitrate into the resin solution; an organic silicon resin solution is compounded with a quartz fiber preform through an RTM (Resin Transfer Molding) process, and the organic wave-transparent composite material with good dielectric properties is obtained through dipping, curing and drying. Compared with the prior art, the composite material has the function of stable dielectric property at high temperature, and can be applied to missile radar radome materials.

The invention provides an unfolding device of a satellite-borne phased-array antenna and an assembling and working method of the unfolding device, and belongs to the technical field of space product structure and mechanism design. The problem that the unfolding capacity of an existing unfolding type phased-array antenna is limited is solved. The unfolding device comprises a phased-array antenna unfolding part, unfolding locking mechanisms and a pressing releasing mechanism, in a pressing state, the phased-array antenna unfolding part is located below a satellite bottom plate, and the side edge of the phased-array antenna unfolding part is connected with a main frame of a satellite through the unfolding locking mechanisms which are symmetrically arranged; a plurality of pressing points are arranged on the phased-array antenna unfolding part, each pressing point is connected with a satellite through a pressing releasing mechanism, phased-array antenna sub-arrays are arranged on the phased-array antenna unfolding part and a satellite bottom plate, and the unfolding locking mechanism comprises an unfolding arm, an unfolding arm support, a torsion spring and a locking hook. The two ends of the two unfolding arms are rotationally connected with the two ends of the two unfolding arm supports. The satellite-borne phased-array antenna unfolding device is mainly used for unfolding satellite-borne phased-array antennas.

The utility model relates to the navigation antenna field, and discloses a high precision GNSS antenna comprising an upper cover, a pedestal, a medium antenna, a PCB circuit board, a shielding cover and a reflection sheet, the upper cover and the pedestal are covered to form an accommodation cavity, the medium antenna, the PCB circuit board, the shielding cover and the reflection sheet are accommodated in the accommodation cavity, and the reflection sheet is arranged in the accommodation cavity. The dielectric antenna is installed above the PCB and electrically connected with the PCB, the shielding case is installed below the PCB, and the reflector plate is located below the shielding case. The utility model has the following advantages: the size is small and can be adjusted according to the installation position on the vehicle; the structure is stable, and the installation mode can be adjusted according to different scenes; the installation scenes are diversified and are not easily influenced by the external installation environment; under the action of the reflector plate, AR, PCO and PCV are ensured, and the gain and bandwidth of the antenna can be improved; the navigation system is diversified, and different frequency band signals of different navigation systems can be adjusted and received according to requirements.

A system for transmitting and receiving wireless signals through a physical barrier, such as walls or windows, to wireless computing devices that are located internal to a structure that is formed in part by the physical barrier. The wireless signals are millimeter waveforms with gigahertz frequencies that are communicated with 5G communication protocols by one or more remote base station nodes located external to the physical barrier. One or more external antennas are configured to communicate RF wireless signals with HMA waveforms to remote wireless base station. In one or more embodiments, the RF wireless signals are amplified and communicated bi-statically through the window barrier between customer premises equipment and an authorized remote wireless base station.

The present disclosure relates to a base station antenna; the base station antenna comprises: a radio; a feed board and a radiating element array mounted on the feed board, where the radiating element array comprises a plurality of radiating elements, and each radiating element extends forward from the feed board; a radome arranged in front of the radiating element array; and a plurality of radome supporting members mounted on the radio and extending forward from the radio to the radome for supporting the radome.

The invention relates to an antenna device comprising a quad-ridged waveguide, an open end of which is configured to act as a radiating aperture, and an orthomode transducer, OMT, configured to couple the quad-ridged waveguide to two feed structures.

The invention relates to the technical field of aerospace, in particular to a ceramic 3D printing A sandwich structure with a broadband wave-transparent characteristic. According to the ceramic 3D printing A sandwich structure with the broadband wave transmission characteristic, good compatibility of broadband wave transmission, strength-structure accuracy and reliability is achieved, an obvious effect on broadband wave transmission of 1 GHz to 18 GHz is achieved, the dielectric constant and the tangent loss are in a reduction trend under the same frequency band, excellent stability is shown, and the dielectric constant and the tangent loss are reduced under 10 GHz. The dielectric constant of the ceramic 3D printing A sandwich structure with the broadband wave transmission characteristic is reduced by 40% or above compared with that of a full solid structure, the wave transmission rate is increased by 50% or above, the ceramic 3D printing A sandwich structure has excellent electromagnetic performance and mechanical performance, and support is provided for implementation of reliable service application targets such as diversion, heat protection, wave transmission, bearing and rain erosion resistance of hypersonic aircrafts.

The invention discloses a non-magnetic passive space nonreciprocal antenna housing based on an artificial electromagnetic metamaterial, and relates to the technical field of stealth materials, the non-magnetic passive space nonreciprocal antenna housing comprises antenna housing units which are periodically spliced in a plane, and each antenna housing unit comprises two dielectric substrates which are vertically crossed with each other; artificial microstructure units are arranged on the upper surface and the lower surface of the dielectric substrate; wherein the artificial microstructure unit arranged on the upper surface of the dielectric substrate comprises a double-opening SRR ring, the artificial microstructure unit arranged on the lower surface of the dielectric substrate comprises an asymmetric square opening ring, and the centers of the double-opening SRR ring and the asymmetric square opening ring are asymmetric. The technical problems that in the prior art, a non-reciprocal super-electromagnetic surface needs external magnetic bias or an external power source, preparation is complex, and integration is difficult are solved.

The invention provides an antenna housing and a base station antenna. The radome can solve the problems that a traditional radome has obvious transmission loss and polarization mismatch during large-angle incidence, and the structural strength and the wave-transparent performance are difficult to consider at the same time. The antenna housing comprises a dielectric main body, at least one part of the dielectric main body is composed of a plurality of concave-convex units which are periodically arranged, each concave-convex unit is provided with a first surface and a second surface which are opposite to each other, and the second surface is a plane; the first surface comprises a concave area and a convex area surrounding the concave area, the thickness of the concave-convex unit in the concave area is a first thickness, the thickness of the concave-convex unit in the convex area is a second thickness, and the first thickness is half of the wavelength of the equivalent medium; the second thickness is N times of the first thickness, and N is larger than or equal to 1.2 and smaller than or equal to 1.5. According to the invention, mechanical strength and wave-transparent performance can be satisfied at the same time, and manufacturing cost can be reduced.

The invention discloses a receiving antenna assembly and monitoring equipment, and relates to the technical field of antennae, and the receiving antenna assembly comprises a housing, a reflection joint, a control panel, a feeder line and an antenna body. A wire passing through hole is formed in the shell; the reflecting joint is provided with a sleeve part and a flange part; the flange part is made of an electromagnetic wave reflecting material and is arranged at one end of the sleeve part; the sleeve part is arranged in the wire passing through hole in a penetrating mode, and the flange part is attached to the inner cavity wall of the shell. The control panel is arranged in the shell; the feeder line is arranged in the shell, one end of the feeder line is electrically connected with the control panel, and the other end of the feeder line extends out of the shell through an inner cavity of the sleeve part; the antenna body is arranged in the shell and is electrically connected with the control panel. According to the scheme, the defect that the reflection area of the control panel is insufficient is overcome by utilizing the reflection joint, the reflection joint expands the reflection area in a limited space while the feeder line passes through the reflection joint, the receiving efficiency of electromagnetic wave signals is enhanced, the balance of signal strength in all directions is improved, and the signal transmission stability is improved.

The invention discloses an underwater communication equipment technology, and aims to provide a full-sea-depth antenna packaging assembly and a packaging method thereof.The full-sea-depth antenna packaging assembly is characterized in that the full-sea-depth antenna packaging assembly comprises a cabin penetrating part, an antenna unit, an antenna protection cover, a vulcanization coating layer and a sealing ring, and the full-sea-depth antenna packaging assembly is used for achieving stable transmission of signals in a deep sea environment; the antenna unit is used for transmitting and receiving electromagnetic wave signals; a conductive channel is arranged in the cabin penetrating piece and used for being electrically connected with the antenna unit so that electric signals inside and outside the cabin can penetrate through the cabin. The whole antenna protection cover is cylindrical, the end part of the antenna protection cover is in transition connection to form a hemispherical shape, and an antenna placement area is formed in the antenna protection cover; the vulcanized coating layer is coated on the peripheral side of the joint of the antenna protection cover and the cabin penetrating piece; the sealing ring is arranged between the antenna protection cover and the cabin penetrating piece and is of a metal-rubber composite structure. The invention is suitable for the technical field of underwater communication equipment.