CN102842755A - Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna - Google Patents
Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna Download PDFInfo
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Abstract
The invention provides a dual-polarized antenna applicable to a wireless local area network and a manufacturing method of the dual-polarized antenna. The antenna comprises two dielectric plates and a grounding plate, which are the same square and overlapped and fixedly connected with one another in the same manner; the upper surface of the first dielectric plate is a metal radiation patch located at the center; two micro-strip feeder lines, which are vertical with each other and are respectively located on the two adjacent edges of a square, are arranged between the two dielectric plates; symmetrical convex rectangles are formed on the four edges of the metal radiation patch; and four cross-shaped grooves in center symmetry are arranged on the grounding plate. The manufacturing method of the antenna comprises the following steps of: respectively manufacturing single-faced and double-faced copper-coated plates to be square plates which are taken as the first and second dielectric plates; etching the first dielectric plate to obtain the metal radiation patch; etching the second dielectric plate to obtain the two micro-strip feeder lines, wherein the bottom face of the second dielectric plate is taken as the grounding plate; machining the four cross-shaped grooves in center symmetry on the bottom face of the grounding plate; connecting the dielectric plates in a laminated manner; and mounting a feeder interface. The dual-polarized antenna provided by the invention is simple in structure and small in thickness, is obviously minimized while property indexes are improved and is strong in maneuverability, and antenna parameters are convenient to adjust.
Description
Technical field
The present invention relates to antenna technical field, specifically is a kind of dual polarized antenna that is applicable to WLAN (Wireless Local Area Network is called for short WLAN) and preparation method thereof.
Background technology
WLAN (Wireless Local Area Network abbreviates WLAN as) is meant that the employing wireless communication technology is interconnected with computer equipment; Client server inserts the Internet and enterprise network through notebook computer, palmtop PC terminals such as (PDA) with WLAN at any time; Be based on the IEEE802.11g standard, the media that it uses radio wave to transmit as data, transmitting range is generally tens meters; The backbone network of WLAN uses the cable connection usually, and the user computer of WLAN is through one or a lot of wireless access nodes (Access Points is called for short AP) access WLAN.Obviously, antenna is one of key element that transmits radio wave in WLAN.
Develop rapidly along with the communication technology; Radio communication is moved towards the application of wideband high-speed multimedia day by day; The problem of frequency spectrum resource wretched insufficiency is serious day by day; How effectively to utilize poor relatively frequency spectrum resource, provide the information of high-quality two-forty to become the matter of utmost importance of being badly in need of solution on the current application engineering.Nowadays the antenna of existing mobile device is basically attached to independently antenna holder is surperficial; In order to make antenna possess good radiance; Built-in aerial need occupy certain space in mobile device; Antenna performance receives the influence of its surrounding environment very big simultaneously, the development miniaturization day by day of mobile device especially now, and the space of leaving antenna arrangement for is more and more littler.The built-in aerial of printed circuit board (PCB) (PCB) printing nowadays becomes the main flow of WLAN antenna gradually; The best approach that the dual polarization technology addresses the above problem especially; It makes radio wave propagate in perpendicular polarization and horizontal polarization, and this two polarized wave becomes non-interfering communication carrier wave.
Dual polarized antenna is made in perpendicular polarization and two reception antennas of horizontal polarization in the single antenna body exactly, receives through polarization diversity to reach the space diversity reception effect, and promptly this type of antenna can receive two kinds of signals simultaneously in a bandwidth.Dual polarized antenna is as the important component part of microstrip antenna; It has inherited advantages such as diversity and feeding network, the active circuit of feeding classification and the polarization of microstrip antenna be integrated; And itself have low cross-section structure, and can conveniently realize conformally with other carriers, expand bandwidth greatly; Have above-mentioned advantage based on it, dual polarized antenna has become the leading role of current microstrip antenna research.But since micro-strip paster antenna itself intrinsic narrow bandwidth, shortcoming such as it is low gain, thus when designing dual polarized antenna, show suitable complicacy.Especially in actual engineering, often to the very high requirement of polarization characteristic proposition of antenna, need consider problems such as antenna gain, impedance matching, size and polarization coupling when using antenna, its practical application is restricted.This also becomes the emphasis of current microstrip antenna technical research.
The design of the dual polarized antenna of the various WLAN of being applied to occurs in succession.Such as notification number is that the Chinese utility model patent " double polarized micro strip antenna " of CN201754429 discloses the dual polarized antenna that is used for the wireless telecommunications net; Configuration feed-in line and radiating element on two surfaces of its substrate; Therefore thickness is higher bigger with size; Be difficult to satisfy current to antenna miniaturization and high integration requirement, its isolation is also not high enough in addition.Also having application number in addition is that 200610034445.7 Chinese invention patent application " super thin double polarized micro strip antenna ", application number are that 200920262436.2 Chinese utility model patent " integral dual polarization super-thin high efficient microstrip antenna ", application number are Chinese utility model patent " small-sized high-gain double polarized micro strip antenna " of 201020520077.9 or the like; Different dielectric layer radiation fin and ground plane have been designed; And microflute is set on ground plane, reduce antenna volume.
But the dual polarized antenna design that does not have all satisfied wireless telecommunications mobile device of miniaturization day by day of gain, impedance matching, size and polarization coupling to require at present yet.
Summary of the invention
The objective of the invention is to design a kind of dual polarized antenna that is applicable to WLAN, the radiation patch on dielectric-slab surface is a special shape, and compact conformation, size are little, and bandwidth, isolation are high.
Another object of the present invention is to disclose the above-mentioned manufacture method that is applicable to the dual polarized antenna of WLAN, and metal radiation patch and microstrip feed line are that etching forms.
The present invention's design is applicable to the dual polarized antenna of WLAN; The ground plate that comprises metal radiation patch, microstrip feed line, ground floor dielectric-slab, second layer dielectric-slab and conduction; Ground floor dielectric-slab, second layer dielectric-slab and ground plate are identical square, and the ground floor dielectric-slab is second layer dielectric-slab in the superiors, its time, and ground plate is at bottom; Three ply board four limits overlap range upon range of, and each layer fitted each other, is fixedly connected.Ground floor dielectric-slab upper surface is the metal radiation patch, constitutes radiating element.The metal radiation patch also is a square, and the length of side is positioned at the center of ground floor dielectric-slab less than the length of side of ground floor dielectric-slab.Orthogonal 2 microstrip feed lines are set between ground floor dielectric-slab and second layer dielectric-slab, and 2 microstrip feed lines lay respectively on the center line on square adjacent both sides.
The square length of side of said ground floor dielectric-slab is L, and the length of side W of said metal radiation patch is 3/10 to 3/5 of L.
Said 2 microstrip feed lines respectively connect the feeder line interface in the edge of second layer dielectric-slab, and the length N of microstrip feed line is 1/4 to 4/9 of L, and width n is 1/10 to the 1/5 adjustment microstrip feed line length optimization of L, can adjust the resonance degree of depth of this antenna.Feeder line length is directly proportional with the resonance degree of depth.
There is identical protrusion rectangle on four limits of said metal radiation patch; The protrusion rectangle is a symmetry with the center line on limit, place; Promptly four limits are the identical broken line like " protruding " word first half, and the special shape of metal radiation patch has been expanded band bandwidth, and make the obvious miniaturization of antenna.Interport isolation that the symmetrical structure assurance antenna of described metal radiation patch is higher and lower cross polarization level, and improved the beamwidth of antenna to a certain extent.
The length M of four limits of said metal radiation patch protrusion rectangle be the metal radiation patch length of side W 2/5 to 4/5, width m is 1/10 to 1/5 of (1/2) * (L-W).
Described ground plate is the origin of coordinates with the center; The cross bath that a penetrating ground plate is respectively arranged in four quadrant areas; The vertical transverse groove of cross bath is parallel or vertical with the limit of ground plate, and cannelure equates that with the length and width of transverse groove 4 cross baths are symmetrical centre with the ground plate center.Cross bath is coupled to the metal radiation patch with electromagnetic energy, the power of the length and width of cross bath decision electromagnetic energy coupling, and the coupling feed has improved the isolation between the antenna ends mouth, and the broadening beamwidth of antenna, makes the further miniaturization of this antenna simultaneously.Public bore is opened on ground plate, make microstrip feed line and metal radiation patch isolate fully, but the radiation condition of appropriate change antenna and impedance operator obviously improves interport isolation.
The vertical or horizontal length D of said cross bath is 1/5 to 2/5 of L, and the outer end of groove is 1/10 to 1/5 of D apart from the ground plate edge apart from d, and the width s of groove is 1/10 to 1/5 of D.
Preferred version is: the square length of side L of said ground floor dielectric-slab, second layer dielectric-slab and ground plate is 42mm to 60mm.
This antenna has adopted the meander technology at ground floor dielectric-slab or ground plate surface cutting fluting; Metal radiation patch four limit projections and the penetrating cross bath of ground plate have cut off the surperficial path of virgin metal radiation patch or ground plate, make current perturbation around the groove complications detour, the path is elongated; Surface current flows to and bends; Electric current flows through the path to be increased, and being equivalent to has increased current path length in antenna equivalent circuit, and the area that is equivalent to metal radiation patch or ground strip increases; So this antenna has dwindled antenna size when having reduced resonance frequency, obtaining good bandwidth.
Described ground floor dielectric-slab is a DIELECTRIC CONSTANTS
rBe 4.1～4.7 single-side coated copper plate, the metal radiation patch is the remaining copper layer that covers after the ground floor dielectric-slab etching; Second layer dielectric-slab is a DIELECTRIC CONSTANTS
rBe 4.1～4.7 double face copper, microstrip feed line is the remaining copper layer that covers after the second layer dielectric-slab surface etch, and ground plate is that the copper layer is covered in the bottom surface of second layer dielectric-slab.Radiating element adopts this kind dielectric-slab can widening frequency band, and the thin substrate of high-k helps feeding network electric field is strapped in the feeder line, improves the radiation condition and the impedance operator of this antenna.
The present invention is applicable to that the manufacture method of the double polarized micro strip antenna of WLAN comprises the steps:
I, use DIELECTRIC CONSTANTS
rBe 4.1～4.7 single-side coated copper plate to make the length of side be the square plate of L, as the ground floor dielectric-slab, use DIELECTRIC CONSTANTS
rBe 4.1～4.7 double face copper to make the length of side be the square plate of L, as second layer dielectric-slab and ground plate;
II, in the surface etch processing metal radiation patch of ground floor dielectric-slab; It is the square that is positioned at the center of ground floor dielectric-slab; Length of side W is 3/10 to 3/5 of L, and there is identical protrusion rectangle on foursquare four limits, and the protrusion rectangle is a symmetry with the center line on limit, place; The protrusion rectangle length M be the metal radiation patch length of side W 2/5 to 4/5, width m is 1/10 to 1/5 of (1/2) * (L-W).
III, process orthogonal 2 microstrip feed lines in the surface etch of second layer dielectric-slab; 2 microstrip feed lines lay respectively on the center line on square adjacent both sides; The length N of microstrip feed line is 1/4 to 4/9 of L; Width n is 1/10 to 1/5 of L, and the copper layer that covers of second layer dielectric-slab bottom surface is a ground plate;
The bottom surface of IV, ground plate is the origin of coordinates with the center; Penetrating cross bath of each etching processing in four quadrant areas; The vertical, horizontal groove of cross bath is parallel or vertical with the limit of ground plate; And cannelure equates that with the length and width of transverse groove 4 cross baths are symmetry with the ground plate center.The vertical or horizontal length D of said cross bath is 1/5 to 2/5 of L, and the outer end of groove is 1/10 to 1/5 of D apart from the ground plate edge apart from d, and the width s of groove is 1/10 to 1/5.This step can be carried out with Step II I simultaneously.
V, ground floor dielectric-slab and second layer dielectric-slab are range upon range of; The metal radiation patch of ground floor dielectric-slab promptly is in the superiors up, and the surface that microstrip feed line is arranged of second layer dielectric-slab up; Be that microstrip feed line is between ground floor dielectric-slab and the second layer dielectric-slab, ground plate is at bottom.Two layer medium plate bonding connection or connect with the connector of insulating material.
VI, the feeder line interface is installed respectively in the outer end of 2 microstrip feed lines.
Compared with prior art; The present invention is applicable to that the advantage of dual polarized antenna of WLAN and preparation method thereof is: 1, employing level and vertical bipolar antenna technology; This antenna will have high receive diversity gain, help in practical application engineering, reducing the quantity that antenna uses; 2, dielectric-slab uses common anti-combustion copper-clad plate material on the market, has that loss is low, cost is very low, low-cross polarization characteristic, simple in structure, and etching processing metal radiation patch and microstrip feed line easily, reduces antenna thickness; 3, feeding network and radiation patch place respectively on the different levels dielectric-slab, obtain wide band standing-wave ratio, and 2 layers of dielectric-slab fit tightly, and do not have air layer between the two, have dwindled this antenna thickness greatly, and general thickness is merely 4 millimeters, has guaranteed antenna miniaturization; 4, the projection on cross bath on the ground plate and metal radiation patch four limits has increased current path length in antenna equivalent circuit; Be equivalent to the increase of metal radiation patch length; When having reduced resonance frequency, obtaining good bandwidth, obviously dwindled antenna size; 5, the symmetry of the symmetry on metal radiation patch four limits and ground plate cross bath guarantees higher interport isolation and lower cross polarization level; 6, the length of groove or finedraw can be adjusted resonance frequency on the adjustment metal radiation patch, and adjustment microstrip feed line length then can be adjusted the resonance degree of depth, and the realization means are flexible, and are workable; 7, through detecting this antenna passband between 2.37GHz～2.59GHz, bandwidth has reached 220MHz, and relative bandwidth has reached 9.1%, has covered WLAN2.4GHz frequency range 2.4～2.48GHz whole frequency of IEEE802.11g standard fully; The antenna port isolation reaches-32dB, has the high-isolation performance; Antenna resonance is at the 2.43GHz point, and antenna gain is 3.64dBi, and yield value has the high-gain performance all greater than 3dBi between 2.4GHz～2.55GHz, and this antenna radiation performance is fine, reaches more than 90% in the resonance point radiation efficiency.Make comparisons measured value and simulation value, both are identical basically, and error is within admissible scope.
Description of drawings
Fig. 1 is for originally being applicable to the dual polarized antenna embodiment vertical view of WLAN;
Fig. 2 is for originally being applicable to the dual polarized antenna embodiment end view of WLAN;
Fig. 3 is for originally being applicable to the dual polarized antenna embodiment upward view of WLAN;
Fig. 4 is the return loss plot figure of Fig. 1 to 3 illustrated embodiment actual measurement gained incident port input signal;
Fig. 5 is the standing-wave ratio figure of Fig. 1 to 3 illustrated embodiment actual measurement gained incident port input signal;
Fig. 6 is the dual polarization interport isolation oscillogram between Fig. 1 to 3 illustrated embodiment actual measurement gained two incident port input signals;
Fig. 7 is one of Fig. 1 to 3 illustrated embodiment actual measurement gained E surface radiation directional diagram, phi=90deg, theta=0～360deg;
Fig. 8 is two of Fig. 1 to 3 illustrated embodiment actual measurement gained E surface radiation directional diagram, theta=90deg, phi=0～360deg;
Fig. 9 is the pairing gain curve figure of Fig. 1 to 3 illustrated embodiment actual measurement each frequency of gained.
The figure internal label is: 1, ground floor dielectric-slab, 2, the metal radiation patch, 21, the protrusion rectangle, 3, microstrip feed line, 31, feeder line interface, 4, ground plate, 41, cross bath, 5, second layer dielectric-slab.
Embodiment
Be applicable to the dual polarized antenna embodiment of WLAN
This for example shown in Fig. 1 to 3, originally is applicable to the dual polarized antenna embodiment of WLAN, comprises ground floor dielectric-slab 1, second layer dielectric-slab 5 and ground plate 4.This routine ground floor dielectric-slab 1, second layer dielectric-slab 5 and ground plate 4 are the square of L=51 millimeter for the identical length of side; Ground floor dielectric-slab 1 is second layer dielectric-slab 5 in the superiors, its time; Ground plate 4 is at bottom, and three ply board four limits overlap range upon range of, and each layer fitted each other.
This routine ground floor dielectric-slab 1 is a DIELECTRIC CONSTANTS
rBe 4.4, tangent loss angle tan σ is 0.02, thickness is 2 millimeters single-side coated copper plate, metal radiation patch 2 is the remaining copper layer that covers after ground floor dielectric-slab 1 etching, second layer dielectric-slab 5 is a DIELECTRIC CONSTANTS
rBe 4.4, tangent loss angle tan σ is 0.02, thickness is 2 millimeters double face copper, microstrip feed line 3 is the remaining copper layer that covers after the second layer dielectric-slab 5 upper surface etchings, ground plate 4 covers the copper layer for the bottom surface of second layer dielectric-slab 5.This routine ground floor dielectric-slab 1 and 5 bonding connections of second layer dielectric-slab.Also can connect 2 layers of dielectric-slab with plastic screw.
As shown in Figure 1, this routine said metal radiation patch 2 is the square of length of side W=23.6 millimeter, is positioned at the center of ground floor dielectric-slab 1.There is identical protrusion rectangle 21 on four limits of square, and protrusion rectangle 21 is a symmetry with the center line on limit, place, and this example is protruded length M=14.0 millimeter of rectangle 21, width m=2.0 millimeter.
Orthogonal 2 microstrip feed lines 3 lay respectively on the center line on the adjacent both sides of second layer dielectric-slab 5 upper surfaces squares, length N=17.3 millimeter, width n=3.2 millimeter.2 microstrip feed lines 3 respectively connect 50 ohm sub-miniature A connector as feeder line interface 31 in the outer end of the edge of second layer dielectric-slab 5.
Said ground plate 4 is the origin of coordinates with the center; The cross bath 41 that a penetrating ground plate 4 is respectively arranged in four quadrant areas; The vertical transverse groove of cross bath 41 is parallel or vertical with the limit of ground plate 4; And cannelure equates that with the length and width of transverse groove 4 cross baths 41 are symmetry with ground plate 4 centers.The vertical or horizontal length D=15.6 millimeter of cross bath 41, width s=2.6 millimeter, the outer end of groove apart from ground plate 4 edges apart from the d=2.2 millimeter.
The present invention is applicable to that the manufacture method of the dual polarized antenna of WLAN comprises the steps:
I, use DIELECTRIC CONSTANTS
rBe 4.4, tangent loss angle tan σ is 0.02, and thickness is that 2 millimeters the single-side coated copper plate making length of side is the square plate of L=51 millimeter, as ground floor dielectric-slab 1; Use DIELECTRIC CONSTANTS
rBe 4.4, tangent loss angle tan σ is 0.02, and thickness is that 2 millimeters the double face copper making length of side is the square plate of L=51 millimeter, as second layer dielectric-slab 5 and ground plate 4;
II, in the surface etch processing metal radiation patch 2 of ground floor dielectric-slab 1; It is the square center, length of side W=23.6 millimeter that is positioned at ground floor dielectric-slab 1; There is the protrusion rectangle 21 of symmetry at center, foursquare four limit; Length M=14 of this example protrusion rectangle millimeter, width m=2.0 millimeter;
III, process 3,2 microstrip feed lines 3 of orthogonal 2 microstrip feed lines in the upper surface etching of second layer dielectric-slab 5 and lay respectively on the center line on square adjacent both sides, the length N of microstrip feed line 3=17.3 millimeter, width n=3.2 millimeter;
IV, ground plate 4 are the origin of coordinates with the center; The cross bath 41 of a ground plate 4 of each etching in four quadrant areas; The vertical, horizontal groove of " ten " word is parallel or vertical with the limit of ground plate; And cannelure equates with the length and width of transverse groove, and 4 cross baths 41 are symmetry with the center of ground plate 4.The vertical or horizontal length D=15.6 millimeter of said cross bath 41, width s=2.6 millimeter, the outer end of groove apart from ground plate 4 edges apart from the d=2.2 millimeter.
V, ground floor dielectric-slab 1 and second layer dielectric-slab 5 are range upon range of; The metal radiation patch 2 of ground floor dielectric-slab 1 up; Promptly be in the superiors, one of the microstrip feed line 3 that has of second layer dielectric-slab 5 faces up, and promptly microstrip feed line 3 is between ground floor dielectric-slab 1 and the second layer dielectric-slab 5; Ground plate 4 is a bottom, and ground floor dielectric-slab 1 overlaps range upon range of, mutual applying, bonding connection with second layer dielectric-slab 5 four limits.
VI, 50 ohm sub-miniature A connector is installed respectively in the outer end of 2 microstrip feed lines 3 as feeder line interface 31.
The dual polarized antenna that this method embodiment makes promptly is applicable to that as above-mentioned the dual polarized antenna embodiment of WLAN is said.This example is optimized the length of metal radiation patch four limits protrusion rectangle when emulation, and resonance frequency is adjusted to 2.45GHz.To the microstrip feed line length optimization to optimal result, antenna resonance during in 2.45GHz the resonance degree of depth be about-42dB.
This routine dual polarized antenna adopts 50 ohm microstrip feeds, in microwave dark room, uses instrument such as network vector analyzer that radiation characteristic parameters such as this routine dual polarized antenna return loss, standing-wave ratio curve and gain are measured.Shown in Figure 4 is the return loss plot of this routine dual polarized antenna incident port of actual measurement gained; Abscissa is that frequency F, ordinate are return loss S11 value among the figure; By visible this routine dual polarized antenna resonance frequency actual measurement of Fig. 4 is 2.43GHz; The resonance point measured value reaches-20dB, and passband is between 2.37GHz～2.59GHz, and bandwidth has reached 220MHz.(VSWR) is as shown in Figure 5 for the standing-wave ratio of the routine antenna of this of gained; Abscissa is that frequency F, ordinate are standing wave ratio among the figure; Can know from Fig. 5; In that 2.37GHz～2.59GHz scope internal antenna voltage standing wave ratio (VSWR) was smaller or equal to 2 o'clock, the bandwidth of operation scope is about 220MHz, has covered the whole frequency range of 2.4GHz frequency range 2.4～2.48GHz fully during actual measurement.Fig. 6 is the isolation of this routine dual polarized antenna, and abscissa is that frequency F, ordinate are isolation S21 value among the figure, but from Fig. 6 knowledge capital example dual polarized antenna in passband, survey isolation S21-below the 30dB, embodied the high-isolation characteristic of this antenna.Fig. 7 is phi=90deg, the azimuth E surface radiation directional diagram when being theta=0～360deg at the pole axis angle for this routine dual polarized antenna; Fig. 8 then is that this routine dual polarized antenna is theta=90deg, the pole axis angle E surface radiation directional diagram when being phi=0～360deg at the azimuth; From then on can find out that this antenna has outstanding radiation characteristic among two figure; Radiation efficiency is high, and aerial radiation power is 6dBm.Fig. 9 is the pairing gain curve of this routine dual polarized antenna actual measurement each frequency of gained, and abscissa is that frequency F, ordinate are the gain G value among the figure, and this figure shows that peak gain has reached 3.64dBi to this antenna of actual measurement at resonance point 2.43GHz place.
The foregoing description is merely concrete example to the object of the invention, technical scheme and beneficial effect further explain, and the present invention is defined in this.All any modifications of within scope of disclosure of the present invention, being made, be equal to replacement, improvement etc., all be included within protection scope of the present invention.
Claims (9)
1. be applicable to the dual polarized antenna of WLAN, comprise metal radiation patch, microstrip feed line, ground floor dielectric-slab, second layer dielectric-slab and ground plate, it is characterized in that:
Ground floor dielectric-slab (1), second layer dielectric-slab (5) and ground plate (4) are identical square; Ground floor dielectric-slab (1) is second layer dielectric-slab (5) in the superiors, its time; Ground plate (4) is at bottom, and three ply board four limits overlap range upon range of, and each layer fitted each other, is fixedly connected; At ground floor dielectric-slab (1) upper surface is metal radiation patch (2), and metal radiation patch (2) also is a square, and the length of side is positioned at the center of ground floor dielectric-slab (1) less than the length of side of ground floor dielectric-slab (1); Between ground floor dielectric-slab (1) and second layer dielectric-slab (5), orthogonal 2 microstrip feed lines (3) are set, 2 microstrip feed lines (3) lay respectively on the center line on square adjacent both sides.
2. the dual polarized antenna that is applicable to WLAN according to claim 1 is characterized in that:
The square length of side of said ground floor dielectric-slab (1) is L, and the length of side W of said metal radiation patch (2) is 3/10 to 3/5 of L.
3. the dual polarized antenna that is applicable to WLAN according to claim 1 is characterized in that:
The length N of said 2 microstrip feed lines (3) is 1/4 to 4/9 of L, and width n is 1/10 to 1/5 of L.
4. the dual polarized antenna that is applicable to WLAN according to claim 2 is characterized in that:
There is identical protrusion rectangle (21) on four limits of said metal radiation patch (2); Protrusion rectangle (21) is a symmetry with the center line on limit, place; The protrusion rectangle (21) length M be metal radiation patch (2) length of side W 2/5 to 4/5, width m is 1/10 to 1/5 of (1/2) * (L-W).
5. the dual polarized antenna that is applicable to WLAN according to claim 1 is characterized in that:
Described ground plate (4) is the origin of coordinates with the center; The cross bath (41) that a penetrating ground plate (4) is respectively arranged in four quadrant areas; The vertical transverse groove of cross bath (41) is parallel or vertical with the limit of ground plate (4); And cannelure equates that with the length and width of transverse groove 4 cross baths (41) are symmetry with ground plate (4) center.
6. the dual polarized antenna that is applicable to WLAN according to claim 5 is characterized in that:
The vertical or horizontal length D of said cross bath (41) is 1/5 to 2/5 of L, and the outer end of groove is 1/10 to 1/5 of D apart from ground plate (4) edge apart from d, and the width s of groove is 1/10 to 1/5 of D.
7. the dual polarized antenna that is applicable to WLAN according to claim 1 is characterized in that:
Described ground floor dielectric-slab (1) is a DIELECTRIC CONSTANTS
r4.1～4.7 single-side coated copper plate, metal radiation patch (2) is the remaining copper layer that covers after ground floor dielectric-slab (1) the upper surface etching; Second layer dielectric-slab (5) is a DIELECTRIC CONSTANTS
rBe 4.1～4.7 double face copper, microstrip feed line (3) is the remaining copper layer that covers after second layer dielectric-slab (5) surface etch, and ground plate (4) covers the copper layer for the bottom surface of second layer dielectric-slab (5).
8. the dual polarized antenna that is applicable to WLAN according to claim 1 is characterized in that:
The square length of side L of said ground floor dielectric-slab (1), second layer dielectric-slab (5) and ground plate (4) is 42mm to 60mm.
9. be applicable to the manufacture method of the dual polarized antenna of WLAN, it is characterized in that comprising the steps:
I, use DIELECTRIC CONSTANTS
rBe 4.1～4.7 single-side coated copper plate to make the length of side be the square plate of L, as ground floor dielectric-slab (1), use DIELECTRIC CONSTANTS
rBe 4.1～4.7 double face copper to make the length of side be the square plate of L, as second layer dielectric-slab (5) and ground plate (4);
II, in the surface etch processing metal radiation patch (2) of ground floor dielectric-slab (1); Said metal radiation patch (2) is the square that is positioned at the center of ground floor dielectric-slab (1); Length of side W is 3/10 to 3/5 of L; There is identical protrusion rectangle (21) at center, foursquare four limits; Protrusion rectangle (21) is a symmetry with the center line on limit, place, the length M of protruding rectangle (21) be metal radiation patch (2) length of side W 2/5 to 4/5, width m is 1/10 to 1/5 of (1/2) * (L-W);
III, process orthogonal 2 microstrip feed lines (3) in the surface etch of second layer dielectric-slab (5); 2 microstrip feed lines (3) lay respectively on the center line on square adjacent both sides; The length N of microstrip feed line (3) is 1/4 to 4/9 of L; Width n is 1/10 to 1/5 of L, and the copper layer that covers of second layer dielectric-slab (5) bottom surface is ground plate (4);
The bottom surface of IV, ground plate (4) is the origin of coordinates with the center; The cross bath (41) of a penetrating ground plate 4 of each etching processing in four quadrant areas; The vertical, horizontal groove of cross bath (41) is parallel or vertical with the limit of ground plate (4); And cannelure equates that with the length and width of transverse groove 4 cross baths (41) are symmetry with the center of ground plate (4); The vertical or horizontal length D of said cross bath (41) is 1/5 to 2/5 of L, and the outer end of groove is 1/10 to 1/5 of D apart from ground plate (4) edge apart from d, and the width s of groove is 1/10 to 1/5 of D;
V, ground floor dielectric-slab (1) and second layer dielectric-slab (5) are range upon range of; The metal radiation patch (2) of ground floor dielectric-slab (1) up; Promptly be in the superiors; One of the microstrip feed line (3) that has of second layer dielectric-slab (5) faces up, and promptly microstrip feed line (3) is between ground floor dielectric-slab (1) and the second layer dielectric-slab (5), and ground plate (4) is a bottom; The applying each other of two layer medium plate, bonding connection or connect with the connector of insulating material;
VI, feeder line interface (31) is installed respectively in the outer end of 2 microstrip feed lines (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239033.2A CN102842755B (en) | 2012-07-11 | 2012-07-11 | Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239033.2A CN102842755B (en) | 2012-07-11 | 2012-07-11 | Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna |
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| CN102842755A true CN102842755A (en) | 2012-12-26 |
| CN102842755B CN102842755B (en) | 2015-07-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450740A (en) * | 2016-12-06 | 2017-02-22 | 大唐终端技术有限公司 | Hand-held terminal and high-gain terminal equipment antenna thereof |
| CN107925165A (en) * | 2015-10-26 | 2018-04-17 | 阿莫技术有限公司 | Multi-band patch antenna module |
| CN108011182A (en) * | 2017-11-01 | 2018-05-08 | 湖北三江航天险峰电子信息有限公司 | A kind of circular polarized antenna |
| CN108615966A (en) * | 2018-05-28 | 2018-10-02 | 京东方科技集团股份有限公司 | A kind of antenna and preparation method thereof |
| CN111129749A (en) * | 2018-10-31 | 2020-05-08 | 华为技术有限公司 | Dual-polarized antenna, antenna array and communication equipment |
| CN111433976A (en) * | 2017-12-14 | 2020-07-17 | 株式会社村田制作所 | Antenna device, antenna module, and wireless device |
| CN112448136A (en) * | 2019-08-27 | 2021-03-05 | 华为技术有限公司 | Antenna and mobile terminal |
| CN112635981A (en) * | 2019-09-24 | 2021-04-09 | 上海诺基亚贝尔股份有限公司 | Antenna assembly, antenna array and communication device |
| WO2021097876A1 (en) * | 2019-11-18 | 2021-05-27 | 深圳市易探科技有限公司 | Dual-panel dual-polarized antenna |
| CN113519090A (en) * | 2019-03-14 | 2021-10-19 | 华为技术有限公司 | Feeding method and feeding structure for antenna element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281590A (en) * | 1997-12-12 | 2001-01-24 | 奥根公司 | Dual band antenna |
| EP2109183A1 (en) * | 2008-04-11 | 2009-10-14 | Powerwave Technologies Sweden AB | Improvement of antenna isolation |
| US20100283707A1 (en) * | 2009-04-06 | 2010-11-11 | Senglee Foo | Dual-polarized dual-band broad beamwidth directive patch antenna |
| CN202712419U (en) * | 2012-07-11 | 2013-01-30 | 桂林电子科技大学 | Dual polarized antenna suitably applied in wireless local area network |
-
2012
- 2012-07-11 CN CN201210239033.2A patent/CN102842755B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281590A (en) * | 1997-12-12 | 2001-01-24 | 奥根公司 | Dual band antenna |
| EP2109183A1 (en) * | 2008-04-11 | 2009-10-14 | Powerwave Technologies Sweden AB | Improvement of antenna isolation |
| US20100283707A1 (en) * | 2009-04-06 | 2010-11-11 | Senglee Foo | Dual-polarized dual-band broad beamwidth directive patch antenna |
| CN202712419U (en) * | 2012-07-11 | 2013-01-30 | 桂林电子科技大学 | Dual polarized antenna suitably applied in wireless local area network |
Non-Patent Citations (3)
| Title |
|---|
| HAN-JAN CHEN ET AL.: "A Novel Cross-Shape DGS Applied to Design Ultra-Wide Stopband Low-Pass Filters", 《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》, vol. 16, no. 5, 30 May 2006 (2006-05-30), XP001548904, DOI: doi:10.1109/LMWC.2006.873594 * |
| M. ESA, U. JAMALUDDIN ET AL.: "《Proceedings of 2010 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE 2010)》", 11 November 2010, article "Antenna with DGS for Improved Performance" * |
| 易钊等: "一种适用于WLAN的新型小型化双极化天线", 《微波学报》, 30 April 2013 (2013-04-30) * |
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| CN106450740A (en) * | 2016-12-06 | 2017-02-22 | 大唐终端技术有限公司 | Hand-held terminal and high-gain terminal equipment antenna thereof |
| CN106450740B (en) * | 2016-12-06 | 2023-12-19 | 大唐终端技术有限公司 | Handheld terminal equipment and high-gain terminal equipment antenna thereof |
| CN108011182A (en) * | 2017-11-01 | 2018-05-08 | 湖北三江航天险峰电子信息有限公司 | A kind of circular polarized antenna |
| CN111433976A (en) * | 2017-12-14 | 2020-07-17 | 株式会社村田制作所 | Antenna device, antenna module, and wireless device |
| CN108615966A (en) * | 2018-05-28 | 2018-10-02 | 京东方科技集团股份有限公司 | A kind of antenna and preparation method thereof |
| CN108615966B (en) * | 2018-05-28 | 2020-06-30 | 京东方科技集团股份有限公司 | Antenna and manufacturing method thereof |
| US10826192B2 (en) | 2018-05-28 | 2020-11-03 | Beijing Boe Optoelectronics Technology Co., Ltd. | Antenna and method of manufacturing the same, display panel |
| US11831084B2 (en) | 2018-10-31 | 2023-11-28 | Huawei Technologies Co., Ltd. | Dual-polarized antenna, antenna array, and communications device |
| CN111129749A (en) * | 2018-10-31 | 2020-05-08 | 华为技术有限公司 | Dual-polarized antenna, antenna array and communication equipment |
| CN113519090A (en) * | 2019-03-14 | 2021-10-19 | 华为技术有限公司 | Feeding method and feeding structure for antenna element |
| CN112448136A (en) * | 2019-08-27 | 2021-03-05 | 华为技术有限公司 | Antenna and mobile terminal |
| CN112635981A (en) * | 2019-09-24 | 2021-04-09 | 上海诺基亚贝尔股份有限公司 | Antenna assembly, antenna array and communication device |
| CN112635981B (en) * | 2019-09-24 | 2023-08-22 | 上海诺基亚贝尔股份有限公司 | Antenna assembly, antenna array and communication device |
| WO2021097876A1 (en) * | 2019-11-18 | 2021-05-27 | 深圳市易探科技有限公司 | Dual-panel dual-polarized antenna |
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