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31results about How to "Improved cross polarization ratio" patented technology
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Dual-polarization radiating element and broadband base station antenna
InactiveCN102176536AIncrease spacingReduce design difficultyRadiating elements structural formsPolarised antenna unit combinationsBroadbandCross polarization
The invention discloses a dual-polarization radiating element comprising a metal reflection baseplate and two pairs of vibrators arranged on the metal reflection baseplate, wherein vibrator arms of each pair of vibrators are mutually parallel or in the same line, and vibrator arms between the two pairs of vibrators are mutually perpendicular. The invention also discloses a broadband base station antenna which is formed by the linear arrangement of a plurality of dual-polarization radiating elements. The dual-polarization radiating element disclosed by the invention has the following advantages that the shapes of the vibrator arms are matched with a feeding mode of the vibrators, an integral forming mode of the stamping and bending of a metal plate is adopted, and the cost is greatly reduced; and the space between the vibrators is increased, meanwhile, the distance between the radiating elements is also increased, therefore the design difficulty of the partition degree of the antennae is reduced; and the characteristics of simple and compact structure, high performance, easiness of manufacture, convenience for installation and use, wide bandwidth, high gain, favorable cross polarization ratio, and favorable partition performance are achieved.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD
Dual polarization array antenna with high polarized isolation
InactiveCN106816698ALarge data capacityImprove adaptabilityRadiating elements structural formsPolarised antenna unit combinationsCouplingArray element
The invention discloses a dual polarization array antenna with high polarized isolation; the dual polarization array antenna comprises two radiation pasters, a [pi] type mutual coupling suppression structure arranged between the two radiation pasters, a parasitic coupled floor and a grounding capacitive loading ring; the grounding capacitive loading ring is vertically arranged on the parasitic coupled floor; the [pi] type mutual coupling suppression structure and the grounding capacitive loading ring are mutually vertical to each other. The antenna adds the [pi] type mutual coupling suppression structure between the array elements, thus effectively improving the antenna polarized isolation, and keeping other performance of the antenna to be well.
Owner:CHONGQING UNIV +1
Miniaturized wideband radiating element suitable for TD-LTE antennas
ActiveCN103956566AReduce volumeIncrease the lengthRadiating elements structural formsTinningAntenna bandwidth
The invention discloses a miniaturized wideband radiating element suitable for TD-LTE antennas. The miniaturized wideband radiating element comprises radiating bodies which are printed on the front face and the back face of a PCB dielectric slab (16) respectively, a sinking column (8) for regulating the low-frequency standing wave ratio and the cross polarization ratio, a tin-plated metal base (9) and coaxial cables (10). The radiating bodies are composed of metal sheets of double-layer structures and feed pieces which are vertically separated. On the premise of guaranteeing the bandwidth of the antennas, the overall weight and size of the antennas can be greatly reduced, and a base station can be conveniently built and maintained in later periods. Compared with a current metal die-casting radiating element, the miniaturized wideband radiating element can be more easily welded and assembled, and is better in stability.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
Antenna and array antenna
InactiveCN104103894AImproving Impedance BandwidthImprove isolationAntenna supports/mountingsRadiating elements structural formsDiagonalCross polarization
The invention discloses an antenna. The antenna comprises a broadband dual-polarized radiation unit and a reflecting plate, wherein the broadband dual-polarized radiation unit comprises a support part and four vibrator arms in different shapes; the four vibrator arms are located at the same plane and arranged in an array with two rows and two columns to form two pairs of orthogonally polarized dipoles; as the diagonal line of the array serves as an axis, the four vibrator arms are in an asymmetric structure with respect to the axis; the vibrator arms are of hollow quadrangular structures; the four vibrator arms are connected with the four corners of the support part; the support part is located below the vibrator arms and is vertical to the plane of the vibrator arms; each vibrator arm is provided with a clipped corner near the corner part in the center of the array, and is connected with a corner part of a corresponding support part at the clipped corner; the support part is of a hollow structure; a groove with equal height and equal width is formed in the middle part of each wall surface of the support part. With the adoption of the embodiment of the invention, impedance bandwidth of single radiation unit can be increased efficiently, and the isolation degree and the cross polarization ratio of the radiation unit are improved.
Owner:GCI SCI & TECH
Antenna feed structure and base station antenna
InactiveUS20190288406A1Improve performanceImproved cross polarization ratioAntenna supports/mountingsRadiating elements structural formsAntenna gainEngineering
The invention discloses an antenna feed structure and a base station antenna. The base station antenna comprises a plane reflector and at least one antenna feed structure installed thereat. The antenna feed structure comprises a radiator, an antenna feed balun and an antenna feed board. The antenna feed balun comprises one end connected to the radiator, and another end passing through the antenna feed board to connect the ground. In operation, an excitation signal is transferred from the antenna feed board via the antenna feed balun to the radiator. The present invention can be utilized to enhance the performance of antenna radiation, and improve an antenna cross polarization ratio, facilitating an increase in an antenna gain, increasing the base station coverage and optimizing the electrical characteristics of an antenna.
Owner:PROSE TECH CO LTD
Ultra-wide-band microstrip patch antenna and multi-frequency antenna array
PendingCN107086363ASolve the problem of narrow standing wave bandwidthNo dispersion problemAntenna arraysRadiating elements structural formsMicrostrip patch antennaUltra-wideband
The invention relates to an ultra-wide-band microstrip patch antenna and a multi-frequency antenna array. The microstrip patch antenna comprises a metal reflective plate and a radiation patch apparatus above the metal reflective plate; a metal patch and two gaps with opening slots in a first straight line direction are arranged on a microstrip patch layer; the opening slots of the gaps in the first straight line direction are opposite in directions; a feed network layer comprises a first feed input port, a first power division node, a first feeder line, a second feeder line and a third feeder line; one end of the first feeder line is connected with the first feed input port while the other end is connected with the input end of the first power division node; and the fixed ends of the second feeder line and the third feeder line are connected with the output end of the first power division node separately while the free ends extend towards the same side of the two gaps in the first straight line direction separately to cross over the two gaps in the first straight line direction respectively. By virtue of the technical scheme provided by the invention, the problems of antenna feed chromatic dispersion, poor directional diagram cross polarization and cross coupling of different frequencies in a multi-frequency antenna can be solved.
Owner:ANPULUO SUZHOU COMM TECH CO LTD
Base station antenna element
ActiveCN103762415ARealize sendingAchieve receptionRadiating elements structural formsAntennas earthing switches associationElectrical conductorCoupling
The invention belongs to the technical field of communications and provides a base station antenna element. The base station antenna element comprises a reflection plate, die-casting elements, coupling radiation sheets, insulation pads and feed sheets, wherein the die-casting elements are installed on the reflection plate, the number of the coupling radiation sheets is even, and the coupling radiation sheets are closely fixed to the die-casting elements. The insulation pads are arranged between the coupling radiation sheets and the die-casting elements, so that the coupling radiation sheets and the die-casting elements keep insulated. The feed sheets are located in through holes of the die-casting elements, one end of each feed sheet is welded to the corresponding die-casting element, and the other end of each feed sheet is welded to a conductor in a cable. In this way, the base station antenna element has a good cross polar ratio and good intermodulation characteristics and is simple in structure and easy to produce.
Owner:MOBI TECH SHENZHEN CO LTD +3
Dual-polarized ultra-wideband base station antenna radiation unit
InactiveCN105161826AAvoid demandImprove installation stabilityAntenna supports/mountingsRadiating elements structural formsUltra-widebandDielectric
The invention discloses a dual-polarized ultra-wideband base station antenna radiation unit comprising an unbalanced-balanced feed connecting seat, a radiator, and a feed conductor. The radiator is formed by two pairs of orthogonal oscillator arms. The oscillator arms are arranged in the same plane and are installed on one end of the unbalanced-balanced feed connecting seat. The feed conductor is equipped with a dielectric clamp, is installed inside the unbalanced-balanced feed connecting seat through the dielectric clamp, and is separated from the unbalanced-balanced feed connecting seat. The dual-polarized ultra-wideband base station antenna radiation unit has beneficial effects of high installation firmness, good batch production consistency, good cross polarization ratio, high port isolation, and a broadband characteristic between 1680 and 3000MHz, achieves a wider bandwidth while satisfying the requirement of a conventional broadband base station antenna, provides a condition for later expansion, and has wide application prospect.
Owner:JIAXING ANXIN COMM TECH
5G antenna and radiation unit thereof
ActiveCN111129750ASimple structureEasy to processParticular array feeding systemsRadiating elements structural formsEngineeringMechanical engineering
The invention discloses a 5G antenna and a radiation unit thereof, the radiation unit comprises two groups of polarized orthogonal dipoles, each group of dipoles comprises two radiation arms which areoppositely arranged at an interval, and each radiation arm is provided with a first expansion branch knot and a second expansion branch knot which are arranged at an interval. The radiation unit canrealize expansion of a working frequency band and has good radiation performance. In this way, the 5G antenna adopting the radiation unit is good in radiation performance.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD
Indoor multiple input multiple output (MIMO) antenna
InactiveCN102683810AImproved cross polarization ratioMeet needsAntenna arraysRadiating elements structural formsHigh volume manufacturingMimo antenna
The invention discloses an indoor multiple input multiple output (MIMO) antenna which comprises an antenna cover, a radiator and a reflecting plate. The radiator is arranged on the reflecting plate, the antenna cover is arranged above the radiator and surrounds the radiator, the radiator comprises a metal patch and two half-wavelength dipoles, the half-wavelength dipoles are respectively printed on two printed circuit boards (PCBs) which are placed in mutual orthogonal cross mode, and the metal patch and the PCBs placed in orthogonal cross mode are evenly distributed on a longitudinal central line of the reflecting plate. The MIMO antenna can replace a wall-mounted antenna in an existing network directly, can support a double-channel device of time division-synchronization code division multiple access (TD-SCDMA), wireless local area network (WLAN) and long term evolution (LTE) frequency band, saves a large amount of resources for smooth transition of an indoor coverage system, and simultaneously provides more selection schemes for a future network integration scheme. The MIMO antenna is simple in structure, easy to assemble and debug, low in cost and favorable for mass production.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
Antenna
ActiveCN105846076AAchieving high performance metricsSimple structureRadiating element housingsOptoelectronicsHigh frequency radiation
The invention provide an antenna which comprises a reflecting plate having a front side, a pair of side plates, low frequency radiation units, high frequency radiation units and a reflection cavity of at least one layer which surrounds the outer sides of the high frequency radiation units, wherein the side plates are respectively arranged at two sides, positioned in a width direction, of the reflecting plate and extend upward from the front side of the reflecting plate; the low frequency radiation units and the high frequency radiation units are arranged on the front side of the reflecting plate, one high frequency radiation unit is arranged between two adjacent low frequency radiation units, and a two layer reflection cavity is arranged at the outer side of at least one high frequency radiation unit. Compared with technologies of the prior art, the antenna of the invention is advantageous in that a double layer or one layer reflection cavity surrounds the high frequency radiation units, high horizontal plane wave beam convergence is realized, and high performance of the high frequency radiation units can be achieved.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD
Radiation unit of antenna and antenna
ActiveCN110323553AEase of mass productionSimplified assembly timeRadiating elements structural formsAntenna earthingsWavelengthCross polarization
The invention discloses a radiation unit of an antenna, and the radiation unit comprises an oscillator radiation circuit board which is provided with oscillator radiation arms arranged in pairs in a printed manner, wherein the width of each oscillator radiation arm is less than a half of the wavelength; an oscillator balun circuit board which is used for supporting the oscillator radiation circuitboard, wherein an oscillator balun is printed on the oscillator balun circuit board, the height of the oscillator balun is less than one fifth of the wavelength, and the oscillator balun is providedwith at least one first slot. Based on the invention, in particular for a 5G-MIMO large-array base station and a micro base station, the radiation unit can improve the overall performance of antennassuch as bandwidth, isolation, gain, cross polarization and the like as a whole, and meanwhile, the size of the antenna cannot be reduced with relatively small performance loss.
Owner:SHENZHEN SAMSUNG COMM TECH RES +1
Dual-polarized broadband base station antenna radiating unit
InactiveCN106785376AAvoid demandImprove installation stabilityRadiating elements structural formsAntennas earthing switches associationHigh bandwidthBroadband
The invention discloses a dual-polarized broadband base station antenna radiating unit. The unit includes an oscillator BALUN, four oscillator arms and two cables; the oscillator balun is of a symmetric and hollow structure, the oscillator arms and the oscillator balun are integrally formed, the four oscillator arms forming a radiating body are symmetrical by using the oscillator balun as the center and are orthogonally combined to form a plus or minus 45-degree polarized distribution, the four oscillator arms are located on the same plane, and the distance between the plane where the four oscillator arms are located and metal reflection plates is the one-fourth wave length; the oscillator arms are rectangular and are internally provided with hollow polygons, and a rectangular hollow gap is formed between every two adjacent oscillator arms. The dual-polarized broadband base station antenna radiating unit is high in installation stability, good in batch production consistency, good in cross polarization ratio and high in port isolation degree, has 698-960MHz broadband characteristics, meets the requirement of an existing broadband base station antenna, has higher bandwidth, provides conditions for future expansion, and has broad application prospects.
Owner:JIAXING ANXIN COMM TECH
Base station antenna oscillator and antenna
PendingCN111600116AImprove performanceReduce the overall heightAntenna supports/mountingsRadiating elements structural formsSoftware engineeringAntenna element
The invention discloses a base station antenna oscillator and an antenna. According to the invention, one end of a feed balun passes through a radiation substrate and is connected to a radiator, the radiator is provided with first hollowed-out grooves and a second hollowed-out groove, the first hollowed-out grooves are symmetrically arranged along the diagonal line of the radiator, the second hollow-out groove comprises extending parts which are perpendicular to each other and are communicated with each other, and a parallel part perpendicular to and communicated with the end portions of the extending parts, the parallel part is parallel to the side edge of the radiator, a part between the extending part and the first hollow-out groove is used as a first radiator, the distance between theextending part and the first hollow-out groove is the width of the first radiator, the part between the parallel part and the side edge of the radiator is used as a second radiator, the distance between the parallel part and the side edge of the radiator is the width of the second radiator, and the width of the first radiator is larger than the width of the second radiator. The base station antenna oscillator and the antenna are excellent in performance and small in size.
Owner:ZHONGTIAN COMM TECH CO LTD +2
Improved dual-polarization base station antenna and method for improving cross-polarization ratio
InactiveCN104253306AImproved cross polarization ratioRadiating elements structural formsPolarised antenna unit combinationsMetal stripsEngineering
The invention discloses an improved dual-polarization base station antenna and a method for improving cross-polarization ratio. The improved dual-polarization base station antenna comprises a metal floor, a radiating body and a feed part, and also comprises four metal strips, wherein the four metal strips form a square on the identical horizontal plane; the side length of the square is one wavelength of a center frequency; the vertical distance from the central point of the square to the metal floor is quarter wavelength of the center frequency of the antenna; the central point of the radiating body and the central point of the square are located on the identical vertical straight line. According to the method disclosed by the invention, the cross-polarization ratio of the dual-polarization base station antenna of plus or minus 45 degrees can be obviously improved.
Owner:SOUTH CHINA UNIV OF TECH
High gain T-shaped probe feed millimeter wave patch antenna
ActiveCN106058451AWide Impedance BandwidthHigh gainSimultaneous aerial operationsRadiating elements structural formsCoplanar waveguideMillimetre wave
The invention discloses a high gain T-shaped probe feed millimeter wave patch antenna. The high gain T-shaped probe feed millimeter wave patch antenna comprises a first medium substrate, wherein the first medium substrate is provided with a T-shaped probe, a first radiation patch, a second radiation patch, a first coplanar waveguide transmission wire and a second coplanar waveguide transmission wire, the T-shaped probe comprises a horizontal patch and a vertical metal through hole, the horizontal patch, the first radiation patch and the second radiation patch are arranged on a front surface of the first medium substrate, distances between the horizontal patch and the first radiation patch and the second radiation patch are identical, the first coplanar waveguide transmission wire and the second coplanar waveguide transmission wire are arranged on a back surface of the first medium substrate, and the vertical metal through hole is arranged at a center of the horizontal patch and sequentially penetrates through the horizontal patch, the first medium substrate and the first coplanar waveguide transmission wire. The high gain T-shaped probe feed millimeter wave patch antenna is advantaged in that an excellent radiation directional diagram is realized, a stable and relatively high gain is realized in the whole work frequency band, and simple design, small volume, low cost and good characteristics are realized.
Owner:SOUTH CHINA UNIV OF TECH
An umbrella-shaped ultra-broadband dual-polarization base station antenna radiation unit
ActiveCN102891353BImproved cross polarization ratioImproving Impedance BandwidthAntenna supports/mountingsRadiating elements structural formsUltra-widebandElectricity
The invention relates to the field of mobile communication base station antennas, and in particular relates to an umbrella-shaped ultra-wideband bipolarization base station antenna radiation unit mounted on a reflection plate for forming an antenna. The umbrella-shaped ultra-wideband bipolarization base station antenna radiation unit comprises a plurality of support elements fixed on the reflection plate, a plurality of radiation bodies and an electricity feed cable, wherein the plurality of radiation bodies are formed through extending from the first ends of the support elements; the electricity feed cable feeds electricity for the radiation bodies; the plurality of radiation bodies form two groups of half-wave vibrators in mutual orthogonality; the corresponding connection part of the electrical connection of the electricity feed cable and the radiation bodies is lower than the upper surfaces of the radiation bodies. The difference is that each radiation body consists of a horizontal radiation body and a bent radiation body; and the tail end extending outward of each horizontal radiation body is connected with the bent radiation body bending downward. The umbrella-shaped ultra-wideband bipolarization base station antenna radiation unit provided by the invention is high in impedance band width, high in insulation degree and high in crossed polarization ratio.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
Radome and antenna
InactiveCN106654568AImprove the radiation indexRadiation index improvementRadiating element housingsEngineeringCross polarization
The invention provides a radome and an antenna. The radome comprises an antenna outer cover which is used for packaging an antenna body, and a separator plate which is arranged inside the antenna outer cover and is fixed to the antenna outer cover. According to the radome provided by the invention, through adding the separator plate at a position which is separated from a main radiation surface by a certain distance inside the antenna outer cover, energy of electromagnetic wave in the radome is reduced, and an integral radiation index of the antenna is improved. Particularly, a front-to-back ratio and a cross polarization ratio of the antenna are improved. Furthermore the radome has relatively high versatility in improving an antenna radiation index.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD
Low-profile magnetic dipole antenna capable of being used for base station antenna
PendingCN114865289AHigh gainLow profileAntenna supports/mountingsRadiating elements structural formsEngineeringDipole antenna
The invention discloses a low-profile magnetic dipole antenna capable of being used for a base station antenna, which comprises a reflection bottom plate, an L-shaped feeder line, a first metal patch and a second metal patch, and is characterized in that the reflection bottom plate is fixedly connected with the first metal patch and the second metal patch which are arranged in a bilateral symmetry manner; the L-shaped feed line comprises an end part feed piece, a horizontal feed piece and a vertical feed piece which are integrally connected in sequence, the end part feed piece is embedded and fixed in the first metal patch, the horizontal feed piece is parallel to the reflection bottom plate, the vertical feed piece is vertical to the reflection bottom plate, the end part of the vertical feed piece is integrally connected with a connecting column, the connecting column penetrates through the reflection bottom plate, and the connecting column is connected with the first metal patch. And the connecting piece is fixedly connected with the SMA connector below. An all-metal structure can be adopted, the structure is simple, the design process is clear, the design application difficulty can be reduced, and portability is high.
Owner:成都益为创达科技有限公司
A miniaturized broadband radiating unit suitable for td-lte antenna
ActiveCN103956566BReduce volumeIncrease the lengthRadiating elements structural formsEngineeringCross polarization
The invention discloses a miniaturized wideband radiating element suitable for TD-LTE antennas. The miniaturized wideband radiating element comprises radiating bodies which are printed on the front face and the back face of a PCB dielectric slab (16) respectively, a sinking column (8) for regulating the low-frequency standing wave ratio and the cross polarization ratio, a tin-plated metal base (9) and coaxial cables (10). The radiating bodies are composed of metal sheets of double-layer structures and feed pieces which are vertically separated. On the premise of guaranteeing the bandwidth of the antennas, the overall weight and size of the antennas can be greatly reduced, and a base station can be conveniently built and maintained in later periods. Compared with a current metal die-casting radiating element, the miniaturized wideband radiating element can be more easily welded and assembled, and is better in stability.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
Novel antenna element
PendingCN109830798ASimple structureFew partsAntenna supports/mountingsRadiating elements structural formsInterior spaceAntenna element
The invention discloses a novel antenna element comprising a reflecting plate, a radiating unit and a feed piece and characterized in that the radiating unit is formed by splicing a plurality of radiating unit individuals fixed at intervals by insulating mediums, the feed piece is disposed in an inner space defined by the radiating unit individuals; a dielectric layer is disposed on the reflectiveplate; and the bottom of the radiating unit is fixed to the dielectric layer through a connecting member. The antenna element is simple in structure, and is convenient to produce and install, and hasgood intermodulation characteristics.
Owner:WUTONG HLDG GRP CO LTD
Dual-polarized array antenna with high polarization isolation
InactiveCN106816698BLarge data capacityImprove adaptabilityRadiating elements structural formsPolarised antenna unit combinationsCouplingArray element
The invention discloses a dual polarization array antenna with high polarized isolation; the dual polarization array antenna comprises two radiation pasters, a [pi] type mutual coupling suppression structure arranged between the two radiation pasters, a parasitic coupled floor and a grounding capacitive loading ring; the grounding capacitive loading ring is vertically arranged on the parasitic coupled floor; the [pi] type mutual coupling suppression structure and the grounding capacitive loading ring are mutually vertical to each other. The antenna adds the [pi] type mutual coupling suppression structure between the array elements, thus effectively improving the antenna polarized isolation, and keeping other performance of the antenna to be well.
Owner:CHONGQING UNIV +1
Radiation unit and base station antenna
InactiveCN113363707AGood Broadband Matching CharacteristicsImproved cross polarization ratioAntenna supports/mountingsRadiating elements structural formsCross polarizationEngineering
The invention provides a radiation unit and a base station antenna. The radiation unit comprises a radiation arm group and a support balun. The radiation arm group comprises four radiation arms distributed in a central symmetry manner, a coupling slot extending along the circumferential direction is arranged between any two adjacent radiation arms, and each coupling slot comprises at least two coupling slot sections with different sizes. The supporting balun is electrically connected with the radiation arm group. According to the radiation unit, a coupling slot extending along the circumferential direction is arranged between any two adjacent radiation arms, and each coupling slot comprises at least two coupling slot sections with different sizes, so that the radiation unit has a good broadband matching characteristic and has excellent cross polarization ratio and front-to-back ratio indexes.
Owner:WUHAN HONGXIN TECH DEV CO LTD
Differential broadband dual-polarized base station antenna with improved cross-polarization ratio
ActiveCN105356053BHigh Differential Signal IsolationImpedance Bandwidth AchievementAntenna supports/mountingsPolarised antenna unit combinationsElectrical conductorCoaxial line
The invention discloses a differential broadband dual-polarization base station antenna for improving a cross polarization ratio. The antenna comprises a reflecting plate, a cross feed structure, four radiation units and four coaxial lines, wherein after the upper ends of the four coaxial lines penetrate through the reflecting plate, outer conductors at the upper ends of the four coaxial lines are connected with the four radiation units in a one-to-one correspondence mode, and an inner conductor at the upper end of each coaxial line penetrates through the corresponding radiation unit and then is connected with the cross feed structure; the lower ends of the four coaxial lines are connected with SMA (Styrene Maleic Anhydride) heads; the four coaxial lines form two pairs of differential feed ports, the four radiation units form two pairs of dipoles, and the two pairs of differential feed ports feed the two pairs of dipoles. The antenna has the characteristics of broad band, high cross polarization ratio and high isolation, realizes stable radiation patterns, stable half-power beam width and stable gains, and has simple structure and good performance; and the service life of the antenna can be prolonged by adopting a cast structure.
Owner:SOUTH CHINA UNIV OF TECH
base station antenna
ActiveCN103762415BRealize sendingAchieve receptionRadiating elements structural formsAntennas earthing switches associationElectrical conductorCoupling
The invention belongs to the technical field of communications and provides a base station antenna element. The base station antenna element comprises a reflection plate, die-casting elements, coupling radiation sheets, insulation pads and feed sheets, wherein the die-casting elements are installed on the reflection plate, the number of the coupling radiation sheets is even, and the coupling radiation sheets are closely fixed to the die-casting elements. The insulation pads are arranged between the coupling radiation sheets and the die-casting elements, so that the coupling radiation sheets and the die-casting elements keep insulated. The feed sheets are located in through holes of the die-casting elements, one end of each feed sheet is welded to the corresponding die-casting element, and the other end of each feed sheet is welded to a conductor in a cable. In this way, the base station antenna element has a good cross polar ratio and good intermodulation characteristics and is simple in structure and easy to produce.
Owner:MOBI TECH SHENZHEN CO LTD +3
antenna
ActiveCN105846076BAchieving high performance metricsSimple structureRadiating element housingsOptoelectronicsHigh frequency radiation
The invention provide an antenna which comprises a reflecting plate having a front side, a pair of side plates, low frequency radiation units, high frequency radiation units and a reflection cavity of at least one layer which surrounds the outer sides of the high frequency radiation units, wherein the side plates are respectively arranged at two sides, positioned in a width direction, of the reflecting plate and extend upward from the front side of the reflecting plate; the low frequency radiation units and the high frequency radiation units are arranged on the front side of the reflecting plate, one high frequency radiation unit is arranged between two adjacent low frequency radiation units, and a two layer reflection cavity is arranged at the outer side of at least one high frequency radiation unit. Compared with technologies of the prior art, the antenna of the invention is advantageous in that a double layer or one layer reflection cavity surrounds the high frequency radiation units, high horizontal plane wave beam convergence is realized, and high performance of the high frequency radiation units can be achieved.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD
Mobile communication base station antenna and bipolar vibrator thereof
ActiveCN102110909BImprove isolationImproved cross polarization ratioAntenna supports/mountingsRadiating elements structural formsClosed loopCross polarization
Owner:杭州平治信息技术股份有限公司
Antenna unit with high cross polarization ratio, antenna and communication base station
PendingCN113224524AImproved cross polarization ratioIncreased cross-polarization ratioAntenna supports/mountingsRadiating elements structural formsCurrent distributionEngineering
The invention discloses an antenna unit with a high cross polarization ratio, an antenna and a communication base station. The antenna unit with the high cross polarization ratio comprises an upper radiation sheet, a lower radiation sheet and a feed network; the upper radiation sheet is arranged right above the upper radiation sheet in parallel; the output end of the feed network is connected with the lower radiation sheet; the lower radiation sheet is coupled with the upper radiation sheet through air; the upper radiation sheet and the lower radiation sheet are rectangular, circular and polygonal; the sizes of the upper radiation sheet and the lower radiation sheet are set according to the size of the antenna; extending patches are symmetrically arranged at the two ends of the upper radiation sheet, the shapes of the extending patches are set according to the application scene of the antenna, the sizes of the extending patches are set according to the frequency band of the antenna, and the extending patches are used for improving the cross polarization ratio in the axial direction. By adopting the scheme, the cross polarization ratio of the antenna is effectively improved by improving the current distribution, the structure is simple, and the cost is lower.
Owner:苏州硕贝德创新技术研究有限公司 +1
A High-Gain T-Probe-Fed Millimeter-Wave Patch Antenna
ActiveCN106058451BWide Impedance BandwidthHigh gainSimultaneous aerial operationsRadiating elements structural formsCoplanar waveguideMillimetre wave
The invention discloses a high gain T-shaped probe feed millimeter wave patch antenna. The high gain T-shaped probe feed millimeter wave patch antenna comprises a first medium substrate, wherein the first medium substrate is provided with a T-shaped probe, a first radiation patch, a second radiation patch, a first coplanar waveguide transmission wire and a second coplanar waveguide transmission wire, the T-shaped probe comprises a horizontal patch and a vertical metal through hole, the horizontal patch, the first radiation patch and the second radiation patch are arranged on a front surface of the first medium substrate, distances between the horizontal patch and the first radiation patch and the second radiation patch are identical, the first coplanar waveguide transmission wire and the second coplanar waveguide transmission wire are arranged on a back surface of the first medium substrate, and the vertical metal through hole is arranged at a center of the horizontal patch and sequentially penetrates through the horizontal patch, the first medium substrate and the first coplanar waveguide transmission wire. The high gain T-shaped probe feed millimeter wave patch antenna is advantaged in that an excellent radiation directional diagram is realized, a stable and relatively high gain is realized in the whole work frequency band, and simple design, small volume, low cost and good characteristics are realized.
Owner:SOUTH CHINA UNIV OF TECH
Dipole antenna with adjustable feed frequency and method for adjusting antenna index
ActiveCN106099372BSimple structureAdjust the center frequencyRadiating elements structural formsAntennas earthing switches associationElectrical conductorCoaxial line
Owner:XIAMEN JIUHUA COMM EQUIP FACTORY
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