3205results 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.

A multi-band antenna has a feed point, a grounding location, a first portion for low band operation, a second portion for low band operation, and one or more portions for high band operation. The ground reference of the feed point for the multi-band antenna is connected to a separate object that may provide a base for the multi-band antenna. The feed point of the multi-band antenna may be spaced above the base and have a space between the feed point and a location for the ground point. The low band portion has multiple resonances that are often odd multiples of the lowest resonant response. The portions that resonant most dominantly in the high band often have multiple resonances that are even multiples of the lowest high band resonance. The multi-band antenna has resonances spaced closely enough to appear to be a wide band antenna above the fundamental high band resonance.

An antenna unit includes a case having a base and a lid. An antenna assembly is located within the lid and is IP67 compliant, being waterproof. The antenna assembly can provide antennas located on one or more baseplates that are positioned within the top cover of the box. A baseplate can act as a heatsink, a reflector, and / or a ground plane, for the antennas while the cover is closed and in the locked position. The antennas have been designed and optimized to work on a baseplate and designed to operate with the thick plastic cover of the box. A plurality of antenna components are situated within the base separate from the antenna assembly. An optional barrier is located within the base to divide the antenna components from the lid. The antenna assembly include different types of antennas operable at least between 600 MHz to 39 GHz. The lid is separable from the base and is divided from other components to minimize interference so that all antennas may operate simultaneously while the lid is in a closed position.

An antenna assembly can include a base portion and a cover, the cover configured to be removably coupled to the base portion. The antenna assembly can include a modem positioned on or above the base portion, a ground plane, and a multi-band antenna.

An antenna assembly may include a housing including a radome having at least an outer layer made of a melt-processable fluoropolymer material. The antenna assembly may further include an antenna system disposed within the housing.

An antenna unit can include a case, a baseplate, and an antenna assembly. The case can include a base defining a first internal volume and a lid defining a second internal volume, the lid configured to couple to the base, the lid configured to move between a closed configuration and an open configuration to selectively permit access to an interior of the case. The antenna unit can include one or more components located within the first internal volume of the base. The baseplate can be configured to be removably coupled to the lid. The antenna assembly can include a plurality of antennas coupled to the baseplate and located within the second internal volume. The antenna unit can act as an emergency portable hot spot and serve as a complete portable network in a singular box and / or case. Additional antenna systems, including directional antenna systems, satellite terminal antenna systems and various other multi-band antennas and components are also disclosed.

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.

The invention belongs to the field of microwave engineering, and particularly relates to a dual-polarization reconfigurable hidden integrated frequency selective surface and an antenna housing, and the frequency selective surface is composed of three layers of structures: an adjustable FSS layer, an adjustable impedance layer and a non-adjustable impedance layer. Wherein the PIN diode is loaded in the adjustable layer, the resistor is loaded in the impedance layer, the spiral resonator and the interdigital capacitor resonator are used for the non-adjustable impedance layer and the adjustable impedance layer respectively, the metal structures arranged in the x direction and the y direction are placed on the two sides of the adjustable impedance layer respectively to achieve dual polarization, and the adjustable FSS layer is used for forming a wave-transparent window. And by utilizing the PIN diode and the multi-layer structure design, the switching between the wave-transparent function and the wave-absorbing function in the X wave band is realized, and the hidden and transparent integrated function design is realized. And an emission mode and an absorption mode can be switched in an X wave band, so that an integrated stealth function is realized. The antenna housing has a wave absorbing and transmitting function and a reconfigurable characteristic through the frequency selective surface.

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.

A smart fluid system includes a fire hydrant that includes a nozzle and a nozzle cap assembly. The nozzle cap assembly includes a nut mounted on the nozzle and positioned at a first end of the nozzle cap assembly; a base positioned at a second end of the nozzle cap assembly opposite the first end, the nozzle received by the base to secure the nozzle cap assembly to the fire hydrant; an enclosure coupled to the nut and positioned between the nut and the base, the enclosure defining a cavity; and an antenna, a modem, and a power source positioned within the cavity, the modem connected in electrical communication with the antenna and the power source.

A multi-band antenna can include a radiating element. The radiating element can include an upright portion, a head portion, one or more first arms, and one or more second arms. The upright portion can be configured for low-band radiation. The head portion can extend from a top edge of the upright portion and can be configured for low-band radiation. The one or more first arms can extend from the upright portion and can be configured for mid-band radiation. The one or more second arms can extend from the upright portion and can be configured for C-band radiation.

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.

An antenna assembly is disclosed. The antenna assembly can include a housing, a first multi-band antenna element, and a second multi-band antenna element. The first multi-band antenna element is configured for cellular applications and positioned within the housing. The first multi-band antenna element includes a first low-band radiating element and a first mid-band radiating element. The second multi-band antenna element is configured for cellular applications and positioned within the housing. The second multi-band antenna element includes a second low-band radiating element and a second mid-band radiating element.

The invention provides a charge control electric field driven jet micro-nano 3D printing curved surface conformal multilayer circuit method and system. A high-precision conformal thin film dielectric layer is formed by utilizing charge injection electrowetting and contact electric field driving jet micro-nano 3D printing; and the high-resolution curved surface conformal circuit is manufactured by combining active residual charge elimination and non-contact electric field driving spray deposition micro-nano 3D printing. Through organic combination of active charge regulation and control and electric field driven jet micro-nano 3D printing, a high-precision conformal film dielectric layer and conductive layer conformal circuit and an interlayer interconnection circuit thereof are integrally printed. According to the curved surface conformal multilayer circuit manufacturing method, efficient, low-cost, high-precision and uniform manufacturing of the curved surface conformal multilayer circuit is achieved.

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.

The utility model relates to an antenna unit, an antenna array, an antenna device and a base station system.The antenna unit comprises an insulating base material plate, a feed network, a metal ground layer, a reflecting plate, an insulating base material arm, a radiation arm and a feed balun, the feed network is connected to the insulating base material plate, the metal ground layer is connected to the insulating base material plate, and the metal ground layer and the feed network are located on the same side of the insulating base material plate; at least part of the reflecting plate is arranged on the side, away from the insulating base material plate, of the metal ground layer, the reflecting plate is in coupling connection with the metal ground layer and the feed network, the insulating base material arm is connected to the insulating base material plate and located on the side, away from the feed network and the metal ground layer, of the insulating base material plate, and the radiation arm is arranged on the insulating base material arm. The feed balun is arranged on the insulating base material arm, one end of the feed balun is electrically connected with the feed network, the other end of the feed balun is electrically connected with the radiation arm, and the feed balun is used for feeding the radiation arm. According to the antenna unit, the dielectric loss of the feed network can be reduced, the coupling between the feed network and the radiation arm is reduced, and the radiation performance and isolation of the antenna unit are improved.

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.

The invention belongs to the technical field of multifunctional radomes, and particularly relates to a frequency-agile absorption and transmission integrated electromagnetic metasurface and radome, the frequency-agile absorption and transmission integrated electromagnetic metasurface comprises a plurality of basic units in periodic array distribution, and each basic unit comprises a wave transmission layer and a wave absorption layer which are oppositely arranged; the wave-transparent layer comprises a wave-transparent dielectric substrate, a wave-transparent metal foil layer I and a wave-transparent metal foil layer II, wherein the wave-transparent metal foil layer I and the wave-transparent metal foil layer II are arranged on the two sides of the wave-transparent dielectric substrate. The wave-transparent metal foil layer I comprises a plurality of metal spiral lines, the wave-transparent metal foil layer II comprises a metal foil, and the metal foil is provided with an annular gap and rectangular gaps distributed around the annular gap; the wave-absorbing layer comprises a wave-absorbing dielectric substrate, and a wave-absorbing metal foil layer I and a wave-absorbing metal foil layer II which are arranged on two sides of the wave-absorbing dielectric substrate; according to the invention, the wave-transparent communication and wave-absorbing isolation functions are realized at the same time, the wave-absorbing frequency band agility function is realized, and the wave-absorbing effect is better.

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 system includes a first antenna and a second antenna. The first antenna includes a first radiating element, a first frequency selective surface, and a first feed network. The first radiating element is disposed on a side of the first frequency selective surface, and the second antenna is disposed on a side that is of the first frequency selective surface and that is away from the first radiating element. The first frequency selective surface includes a plurality of first strip-shaped structures and a plurality of second strip-shaped structures. The first strip-shaped structures and the second strip-shaped structures are made of metal. The plurality of first strip-shaped structures intersect with the plurality of second strip-shaped structures to form a plurality of grids. The first feed network includes a first structure, and the first structure is disposed on the first strip-shaped structure.

This application describes multi-band antenna systems and base stations. An example multi-band antenna system includes: a plurality of radiating element arrays, feeding networks separately corresponding to the plurality of radiating element arrays, at least one layer of a frequency selective surface (FSS), and a reflection panel. The plurality of radiating element arrays are located above the reflection panel. All or some of the plurality of radiating element arrays are stacked. The at least one layer of the FSS is located between the stacked radiating element arrays. A feeding network corresponding to at least one radiating element array in the stacked radiating element arrays is electrically connected to the at least one layer of the FSS, or the feeding network corresponding to the at least one radiating element array is integrated on the at least one layer of the FSS.

The invention relates to a construction technology of a radar radome, in particular to a construction and positioning technology of a high-precision radar radome, and particularly relates to a construction method of a spherical radar radome. Comprising the steps that 1, an internal positioning tool is built and used for providing basic positioning and supporting of the spherical radar radome; 2, building an external positioning tool based on the internal positioning tool, and arranging the external positioning tool according to a preset spherical contour to form a spherical frame; and step 3, building the radar radome based on the external positioning tool, and completing building of the spherical radar radome. According to the method, through three-dimensional software modeling and precise calculation of the size of the positioning tool in the tool, precise positioning of the whole positioning tool is achieved; by means of the double-layer positioning tool, high-precision positioning and stable supporting of the radar radome are achieved, the manufacturing process is effectively simplified, the positioning precision and the manufacturing efficiency are improved, and meanwhile the manufacturing cost is reduced.

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.

The embodiment of the invention provides an antenna structure and communication equipment, relates to the technical field of radio communication, and is used for reducing the transmission loss of a feeder line in the antenna structure. The antenna structure comprises a radome, an antenna array assembly, a mounting seat and a connector, the radome is provided with a first accommodating cavity, the antenna array assembly and the mounting seat are both arranged in the first accommodating cavity, and the antenna array assembly is provided with a radiating surface and a back surface deviating from the radiating surface and is provided with a preset port; the mounting base comprises a mounting base body, the mounting base is located on the side where the back face of the antenna array assembly is located, and a second containing cavity is formed in the mounting base body; the connector is arranged in the second accommodating cavity, and the connector is electrically connected with the preset port.

An aircraft-mounted mobile communicator for communicating with one or more satellites or base stations is disclosed. The aircraft-mounted mobile communicator includes a radome structure and one or more antenna elements embedded within or proximate to a shell of the radome structure that maximizes an aperture of the one or more antenna elements, wherein the one or more antenna elements are configured to operate over one or more frequency bands.

The embodiment of the invention provides a phase shifter, an antenna and a communication base station, relates to the technical field of communication, and aims to solve the problems of large transmission loss and large size of the phase shifter. The phase shifter comprises a bearing plate, a metal shell, a fixed medium, a sliding medium and a metal feed sheet. Wherein the bearing plate comprises a first metal layer arranged on one side; the metal shell is fixedly attached to the surface of the first metal layer and electrically connected with the first metal layer. The fixed medium is fixedly installed in the metal shell, and the metal shell and the fixed medium define a sliding cavity. The relative dielectric constant of the fixed medium is greater than 1. The sliding medium is arranged in the sliding cavity, and the sliding medium located in the sliding cavity can slide relative to the fixed medium; the sliding medium is provided with a sliding groove with an opening facing the fixed medium. The metal feed sheet is installed on the fixed medium and comprises a phase shift circuit extending into the chute. The phase shifter can be applied to an antenna and a communication base station.