221results about "Indoor communication adaptation" patented technology

Antenna systems for controlled coverage in buildings are disclosed where a data communications network in a building includes one or more external antennas. At least one of the external antennas is disposed on a roof or exterior of the building disposed in or associated with a window, a sky sensor or a digital architectural element. The one or more external antennas are coupled to a network infrastructure of the building via one or more data carrying lines and / or wireless links and are configured for communication with an external wireless network. The network infrastructure includes one or more data carrying lines, one or more network switches, and at least one control panel. In some embodiments, at least one of the external antennas is configured for communication with an external wireless network.

The invention relates to the technical field of antenna equipment, in particular to a multi-frequency resonant circularly polarized antenna array and a communication performance test method thereof, and solves the problem that an antenna cannot communicate through different frequencies at the same time. The antenna array comprises an antenna substrate, a circular antenna assembly and a radio frequency signal line; the circular antenna assembly comprises a feeding point, a feeder line and a radiation unit; when the circular antenna assembly works in a low-frequency working frequency band, the first branch knot and the second branch knot in the radiation unit form a first equivalent resonance length, and when the circular antenna assembly works in a high-frequency working frequency band, the part, close to the feeder line, of the second branch knot in the radiation unit and the third branch knot form a second equivalent resonance length. And when the circular antenna assembly works in a working frequency band with higher frequency, the part, close to the feeder line, of the second branch knot in the radiation unit and the fourth branch knot form a third equivalent resonance length. According to the invention, multi-band radiation and receiving can be realized, and the flexibility of the antenna is improved.

An antenna device configured for wireless positioning. The antenna device includes a ground plane having a polygonal shape comprising at least 4 side edges. A plurality of chip antenna elements tuned to a predetermined radio frequency are each singly provided at one of said side edges with a spacing between adjacent ones of said chip antenna elements corresponding to ½ of a wavelength of said predetermined radio frequency. A patch antenna element tuned to said predetermined radio frequency is provided at a center portion of a front side of the ground plane.

The invention provides a common-caliber dual-polarization indoor distribution antenna and communication equipment, the common-caliber dual-polarization indoor distribution antenna comprises a vertical polarization antenna, a horizontal polarization antenna and a feed structure, the vertical polarization antenna comprises a metal floor, a triangular metal plate, a plurality of grounding metal columns and a first copper-clad layer, the triangular metal plate and the plurality of grounding metal columns are arranged between the metal floor and the first copper-clad layer; the horizontally polarized antenna comprises a double-layer dielectric plate and a slot array, the bottom of the double-layer dielectric plate is coated with copper to form a first copper-coated layer, and the slot array is arranged at the top of the double-layer dielectric plate; the horizontally-polarized antenna and the vertically-polarized antenna are arranged in a common-caliber mode, the structure is simple, and the size is small. The feed structure comprises a first feed structure and a second feed structure, the first feed structure is connected with the vertical polarized antenna, and the second feed structure is connected with the horizontal polarized antenna; the first feed structure and the second feed structure are arranged on the metal floor in a non-overlapping manner, so that coupling interference is avoided.

Provided is a radio wave reflector that can reflect radio waves while the intensity thereof is maintained and that can maintain the scenery. The radio wave reflector of the present invention is a radio wave reflector for reflecting radio waves, wherein the intensity of a reflective wave as specular reflection of an incident wave is −30 dB or more relative to the intensity of the incident wave at a frequency, and the radio wave reflector has a total light transmittance of 65% or more as measured using a standard illuminant D65.

The invention relates to a reconfigurable reflection wide beam generation metasurface design method for enhancing indoor signal coverage, and belongs to the technical field of artificial electromagnetism, and the method comprises the following steps: designing a reflection metasurface unit which can correspond to different phase responses by changing the capacitance value of an adjustable capacitor; the value of the adjustable capacitor is selected to regulate and control the phase, and 1-bit phase quantization is realized; estimating the scale of the metasurface reflective array and the distance between the feed source and the center of the metasurface reflective array; a phase distribution diagram is calculated according to the phase compensation principle, the compensation phase of each unit in the metasurface reflection array and the corresponding capacitance value are searched from the phase distribution diagram, the units are arranged into a square reflection array, and after a feed source signal is added, the reflection array can generate an emergent wave beam with a preset angle; by changing the rotation angle of the capacitor moving plate, different phase responses to the unit are realized, and the array phase of the preset angle is compensated, so that reconfigurable beam generation can be realized under incident waves.

Multi-band antenna arrays and methods of use are provided herein. An example device includes vertical surfaces arranged into a tubular configuration, where each of the vertical surfaces comprising antenna arrays is aligned along the vertical surfaces. The antenna elements are arrayed through a feed network in such a way that antenna gain is increased while elevation beam-width is reduced. The device also includes two or more radios connected to the antenna arrays on the vertical surfaces via the feed network.

The present application provides an ultra-wideband low-profile vertically polarized omnidirectional antenna, comprising a metal floor, a radiation arm, and a metal disc. The radiation arm comprises corrugated radiation arms and long straight radiation arms which are alternately arranged in a radial shape; the top of the radiation arm is fixedly connected to the metal disc; the outer ends of the corrugated radiation arms are connected to the metal floor; and the parts inside the outer ends of the corrugated radiation arms are suspended above the metal floor. According to the antenna of the present invention, the corrugated radiation arms are combined with the metal disc at the top, thereby reducing the profile height of the antenna; the long straight radiation arms can generate resonance points at high-frequency points, and the resonance points are combined with resonance points generated by the corrugated radiation arms, thereby expanding the bandwidth of the antenna; six arc-shaped grooves are etched in the metal floor, so that the radiation performance at the high-frequency points can be improved, thereby ensuring the stability of the pattern of the antenna in the whole working frequency band; and the outermost end of the metal floor is bent upwards and inwards, thereby reducing the plane size of the antenna while achieving a low profile and not affecting the performance of the antenna.

The invention relates to a ceiling antenna based on bidirectional gain. The ceiling antenna comprises a bottom plate, an omnidirectional radiation oscillator and two reflecting plates. A through hole is formed in the mounting surface of the bottom plate, the omni-directional radiation oscillator penetrates through the through hole through the bottom and is connected with the core wire, the two reflecting plates are arranged on the side of the mounting surface and define a reflecting area, the omni-directional radiation oscillator is located in the reflecting area, and when the reflecting plates are arranged in a mirror symmetry mode, the center point of the omni-directional radiation oscillator is coplanar with the symmetry plane of the reflecting plates. The distance between the reflecting plates is in positive correlation with the distance between the reflecting plates and the first plane in the direction perpendicular to the first plane. According to the design, signal radiation is effectively concentrated to a long and narrow space by accurately configuring the relationship between the reflecting plate and the omnidirectional radiation oscillator, the problem of insufficient signal coverage of a traditional antenna in long and narrow environments such as a gallery is solved, bidirectional gain of the antenna is realized through mirror symmetry and optimal configuration of the reflecting plate, and the signal coverage uniformity is ensured. And the signal coverage effect is improved.

The present disclosure relates to a reader, such as a reader for a physical access control system. The reader can include first and second antennas, each designed or configured for receiving ultra-wide band (UWB) signals. The reader can also include a mounting plane configured for mounting the reader to a surface. An axis aligning the first and second antennas can be arranged substantially perpendicular relative the mounting plane. A material can be provided between the first and second antennas. The material can have a thickness that defines a distance between the first and second antennas of less than a half wavelength of the UWB signal through air (λA / 2), the material configured to slow down electromagnetic waves passing therethrough such that the thickness of the material provides an effective separation distance of the first and second antennas of at least a half wavelength of the UWB signal through air (λA / 2).

Techniques for transceiving radio frequency (RF) signals through a window of a building are disclosed, the window having a first surface facing an interior of the building. An antenna arrangement is attached to a building structure adjacent the first surface and the antenna arrangement includes one or more radiating elements configured to transceive the RF signals through the window. In some embodiments, the building structure is mullion. In some embodiments a window surface includes an electrochromic and / or low emissivity coating that is excluded from a region proximate to the radiating elements.

Apparatus and methods useful in surveying to provide information rich models. In particular, information not readily or possibly provided by conventional survey techniques can be provided. In some versions targets provide reference for baseline positioning or improving position information otherwise acquired. Scanning may be carried out in multiple locations and merged to form a single image. Machine mounted and hand mounted scanning apparatus is disclosed.

An antenna includes a first base substrate, a radiation patch on the first base substrate, a second base substrate, a feed structure, and a ground structure on the second base substrate. The first base substrate and the second base substrate are substantially perpendicular to each other. The radiation patch and the ground structure are substantially perpendicular to each other. The ground structure includes a conductive mesh structure. The radiation patch includes a conductive mesh structure. The antenna includes one or more irregularly shaped slots extending through the radiation patch, wherein a contour of at least one of the one or more irregularly shaped slots includes at least one curved edge.

The embodiment of the invention provides a dual-polarization indoor distribution antenna, and belongs to the antenna communication equipment technology, the dual-polarization indoor distribution antenna comprises a vertical polarization radiation unit and a horizontal polarization radiation unit, the vertical polarization radiation unit comprises a grounding plate and a conical radiation oscillator arranged on the grounding plate, the conical radiation oscillator is used for being excited to radiate vertical polarization electromagnetic waves; the horizontally polarized radiation unit comprises a plurality of radiation subunits, the plurality of radiation subunits are sequentially arranged around the peripheral side of the conical radiation oscillator, a radiation gap is formed between every two adjacent radiation subunits, and the radiation gaps are used for being excited to radiate horizontally polarized electromagnetic waves; the orthographic projection of the radiation subunit on the grounding plate is located in the grounding plate. According to the dual-polarization indoor distribution antenna provided by the embodiment of the invention, broadband coverage can be realized, and the multi-band requirement of an indoor communication system is met.

The transmitter comprises: a housing having a long side and a short side, where the width of the short side is substantially the same as the width of a pipeline track; the mounting part is used for mounting the shell on the pipeline track under the condition that the extension direction and the long side of the pipeline track are basically aligned; and an antenna element accommodated in the housing.

The present invention discloses a dual-frequency dual-polarization omnidirectional antenna, comprising a first antenna substrate, a first antenna radiating unit, a second antenna substrate and the second antenna radiating unit, wherein the first antenna radiating unit is attached to the surface of the first antenna substrate, the second antenna radiating unit is attached to the surface of the second antenna substrate, a first through slot with an upper end opening is provided at a center right position of the upper end of the first antenna substrate, a second through slot with an lower end opening is provided at a center left position of the lower end of the second antenna substrate, the second antenna substrate is vertically inserted into the first through slot through the second through slot and vertically connected with the first antenna substrate in a cross direction, and does not affect the lead-out of a feed line, the first antenna radiating unit generates -45° polarized radiation, and the second antenna radiating unit generates +45° polarized radiation, thereby realizing the dual-frequency dual-polarization omnidirectional radiation of the antenna.

A system for managing parcels is disclosed. The system includes an antenna configured to transmit one or more beams having a variable transmission power in one or more antenna sectors; and a radio frequency identification (RFID) reader communicatively coupled to the antenna to receive an RFID signal from each of the one or more incoming parcels. Further, the RFID reader includes one or more processors coupled to the memory, the one or more processors configured to retrieve data associated with each of the one or more parcels, determine a weighted density factor for each of the one or more parcels, and determine a weighted density factor for each of the one or more parcels. A load density for each of the one or more antenna sectors is determined, and the variable transmit power of the antenna for each of the one or more antenna sectors is adjusted based at least on the load density.

The present disclosure relates to a small base station antenna apparatus comprising, particularly, a fixed housing having an internal space open in one direction and the other direction, and a directivity adjustment means movably coupled to the internal space of the fixed housing or an external space corresponding to the outside thereof, wherein the directivity adjustment means is coupled to the fixed housing such that it is caught when an antenna module provided at the front end portion is rotationally steered left or right or rotationally tilted up or down, and thus is prevented from being separated. Accordingly, the advantages of improving the workability of indoor installation as well as facilitating building of a small cell base station are provided.

To provide an antenna device for a base station which can prevent deterioration of the aesthetic appearance of the installation location and maximize space utilization. The antenna device for a base station includes a repeater, an antenna module that is tiltable and steerable relative to the front face of the repeater, and an antenna clamping unit that mediates the installation of the antenna module relative to the repeater. The antenna clamping unit conceals a wire cable that electrically connects the repeater and the antenna module.

This transmitter comprises: a housing which has a long side and a short side and in which the width of the short side is substantially the same as the width of a duct rail; an attachment part which is for attaching the housing to the duct rail with the extension direction of the duct rail and the long side substantially aligned; and an antenna element which is housed within the housing.

Provided are a radio wave reflector and building material that have flexibility and reflect radio waves while the intensity thereof is maintained. A radio wave reflector 11 for reflecting radio waves, wherein when the radio wave reflector 11 is in a flat state and is caused to reflect a radio wave at an incident angle of an incident wave of 15 degrees or more and 75 degrees or less, the intensity of a reflective wave as specular reflection of the incident wave is -30 dB or more relative to the intensity of the incident wave at least at one frequency; the change rate of the surface resistivity R2 of the radio wave reflector 11 curved along a curved surface with a curvature radius of 200 mm with respect to surface resistivity R1 of the radio wave reflector 11 in a flat state is -10% or more and 10% or less; and the radio wave reflector 11 has a flexural modulus of 0.05 GPa or more and 4 GPa or less.

A building infrastructure system comprises at least a first and a second subsystem. The first and the second subsystem each comprise plural infrastructure devices that each include a communication node connected in a wireless mesh communication network topology to other communication nodes. The first and the second subsystem are arranged at different sides of a barrier, e.g. a building barrier such as a wall, ceiling plate or window of the building. At least the first subsystem comprises a first coupling device for connecting the first subsystem and the second subsystem, and the first coupling device is configured to communicate in the first subsystem and to transmit and receive signals to the second subsystem using wireless communication via the barrier. The disclosure also concerns a wireless coupling device for the building infrastructure system.

An in-home relay device according to various embodiments disclosed in the present document may comprise: a housing; an antenna provided in the housing; an antenna alignment unit for changing the position of the antenna so as to change the radiation direction of the antenna; a processor operatively connected to the antenna and the antenna alignment unit; and a communication unit electrically connected to the processor and wirelessly connecting to external electronic devices, wherein the processor can control the antenna alignment unit on the basis of the quality of signals transmitted or received through the antenna so that a line of sight (LOS) between the antenna and a repeater is secured. Various other embodiments are possible.

The low-profile ultra-wideband folding horn antenna comprises a dielectric lens, a horn antenna body and a metal back cavity which are sequentially arranged from top to bottom, the horn antenna body is arranged in the metal back cavity, and the metal back cavity wraps the bottom of the horn antenna body and at least two symmetrically-arranged side walls. According to the invention, the coaxial cable is adopted for direct feeding, and the multiple bent radiation arms are introduced, so that the profile height of the horn antenna is greatly reduced and the antenna structure is simplified; meanwhile, by loading the dielectric lens and the metal side wall, the gain in the working frequency band is remarkably improved, and the dielectric lens and the shielding cover are integrally formed, so that processing and mounting are facilitated. The antenna has the ultra-wideband characteristic, and the low-frequency gain performance is stable; the cross polarization level is lower than-34 dB, the radiation pattern is symmetrical and good in directivity, and the overall radiation performance is stable. The antenna is low in profile, simple in structure, small in size, low in manufacturing cost and capable of meeting the requirements of a 5G communication indoor distribution system.

This invention discloses a low-profile ultra-wideband folded horn antenna, comprising a dielectric lens, a horn antenna, and a metal back cavity arranged sequentially from top to bottom. The horn antenna is placed within the metal back cavity, which encloses the bottom of the horn antenna and at least two symmetrically arranged sidewalls. This invention employs direct coaxial cable feeding and introduces multiple bent radiating arms, significantly reducing the profile height of the horn antenna and simplifying its structure. Simultaneously, by loading the dielectric lens and metal sidewalls, the gain within the operating frequency band is significantly improved. The dielectric lens and shielding cover are integrally formed, facilitating processing and installation. This antenna exhibits ultra-wideband characteristics, stable low-frequency gain, a cross-polarization level below -34dB, a symmetrical radiation pattern with good directivity, and stable overall radiation performance. This invention's antenna features a low profile, simple structure, compact size, and low manufacturing cost, meeting the requirements of 5G communication indoor distribution systems.

The low-profile dual-polarization indoor distributed antenna of the present invention comprises a first horizontal polarization unit, a second horizontal polarization unit and a vertical polarization unit. The metal ground of the first horizontal polarization unit is engraved with four rectangular grooves, and the upper surface of the dielectric substrate is provided with eight arc-shaped directors; the metal ground of the second horizontal polarization unit is engraved with eight arc-shaped grooves and rectangular grooves; the vertical polarization unit comprises four orthogonally arranged wavy radiation arms, which ensure wide-band omnidirectional radiation while its profile height is only 5% of the vacuum wavelength at the lowest operating frequency, which largely makes up for the defect of large profile size commonly existing in existing indoor distributed antennas. The first horizontal polarization unit achieves a bandwidth of 19.6% (3.26GHz-3.97GHz), the second horizontal polarization unit achieves a bandwidth of 49.2% (1.64GHz-2.71GHz), and the vertical polarization unit achieves a bandwidth of 84.0% (1.65GHz-4.04GHz).

The present invention provides an apparatus for a telecommunications network, comprising a housing having a plurality of user compartments and at least one host compartment; wherein each of the plurality of user compartments is configured to house one or more user equipment; wherein the at least one host compartment is configured to house an optical fibre device for receiving input signals from the user equipment and to output corresponding signals for transmission over one or more optical fibres connected thereto; wherein the apparatus is configured to house an antenna to be communicatively coupled with the one or more user equipment housed in one or more of the plurality of user compartments, the antenna being configured to receive wireless communication signals and to communicate the received wireless communication signals to the one or more user equipment; wherein the apparatus is configured to house a power supply device for providing power to the antenna, the optical fibre device, and the one or more user equipment.

The present invention proposes a novel co-cone co-coupling low-cost dual-polarization antenna, which is a dual-polarization omnidirectional ceiling antenna and has a symmetrical structure; two identical metal flying vibrators are used as radiating vibrators (2, 4) and are respectively fixed on the upper platform of the lower cone disk (5) to form a dual-polarization radiating unit; except for the grounding feet, the edges of the radiating vibrators maintain a staggered ground clearance with the lower cone disk; a metal coupling layer (7) is provided at the coupling spacing distance above the dual-polarization radiating unit to form the co-coupling of the radiating vibrators; by adjusting the size and shape of the radiating vibrators and the height clearance from the ground, the size of the slots on the radiating vibrators, and the shape and size of the metal coupling layer; and the spacing distance between the radiating vibrators, the circuit parameters and radiation parameters of the antenna are controlled within the technical requirements. Compared with the existing dual-polarization omnidirectional ceiling antenna, the co-cone co-coupling design is introduced to achieve ultra-wideband (698-3700MHz).

The application discloses a spotlight antenna mounting device and relates to the technical field of spotlight antenna mounting. The spotlight antenna mounting device comprises a fixed support assembly and a spotlight antenna connecting assembly. The fixed support assembly comprises at least two mounting surfaces, and any two mounting surfaces intersect with each other. The spotlight antenna connecting assembly is detachably connected with any one of the at least two mounting surfaces. The spotlight antenna connecting assembly of the spotlight antenna mounting device provided by the application has multiple connection postures which can be selected, so that the spotlight antenna mounting device can be flexibly adapted to the installation requirements of the spotlight antenna in various complex installation environments, such as a parapet wall, a roof slope or a pointed tile.

The application provides a co-boresight dual-polarized indoor antenna and a communication device, the co-boresight dual-polarized indoor antenna comprising a vertical polarization antenna, a horizontal polarization antenna and a feeding structure, the vertical polarization antenna comprising a metal floor, a triangular metal plate, a plurality of grounded metal columns and a first copper cladding layer, the triangular metal plate and the plurality of grounded metal columns being arranged between the metal floor and the first copper cladding layer; the horizontal polarization antenna comprising a double-layer dielectric plate and a slot array, the bottom of the double-layer dielectric plate being covered with copper to form the first copper cladding layer, and the slot array being arranged on the top of the double-layer dielectric plate; the horizontal polarization antenna and the vertical polarization antenna are arranged in a co-boresight mode, the structure is simple, and the volume is small; the feeding structure comprises a first feeding structure and a second feeding structure, the first feeding structure being connected with the vertical polarization antenna, and the second feeding structure being connected with the horizontal polarization antenna; the first feeding structure and the second feeding structure are arranged in a non-overlapping mode on the metal floor, so that coupling interference is avoided.