CN108808233A - A kind of high-gain broadband dual-polarized patch antenna - Google Patents
A kind of high-gain broadband dual-polarized patch antenna Download PDFInfo
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- CN108808233A CN108808233A CN201810572140.4A CN201810572140A CN108808233A CN 108808233 A CN108808233 A CN 108808233A CN 201810572140 A CN201810572140 A CN 201810572140A CN 108808233 A CN108808233 A CN 108808233A
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- 239000000758 substrate Substances 0.000 claims abstract description 106
- 239000002184 metal Substances 0.000 claims abstract description 68
- 229910052751 metal Inorganic materials 0.000 claims abstract description 68
- 239000000523 sample Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 5
- 239000002609 medium Substances 0.000 description 78
- 238000010586 diagram Methods 0.000 description 13
- 230000010287 polarization Effects 0.000 description 9
- 230000009977 dual effect Effects 0.000 description 7
- 238000001465 metallisation Methods 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005388 cross polarization Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012120 mounting media Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Waveguide Aerials (AREA)
Abstract
The invention belongs to radio antenna technical fields, are related to a kind of high-gain broadband dual-polarized patch antenna, including first medium substrate, second medium substrate, third medium substrate and the floor from top to bottom set gradually；The first medium substrate is equipped with the first square patch, and four side of the first square patch is respectively equipped with triangular shape notch；Second medium substrate is equipped with the second square patch, and the second rectangular patch edges are equipped with triangular shape notch, and its middle part is equipped with L shape notch；The third medium substrate is equipped with cross feeder line, to provide two pairs of differential signals to patch；Three medium substrates are equipped with perforative plated-through hole close to center, and two patches are connected with floor；Three medium substrates are equipped with perforative plated-through hole close to edge, by endless metal are connected with floor.The dual-polarized patch antenna of the present invention has the advantages that high-gain, wide band, adapts to for current wireless communication field.
Description
Technical field
The invention belongs to radio antenna technical fields, are related to a kind of high-gain broadband dual-polarized patch antenna.
Background technology
Dual polarized antenna be it is a kind of being combined with two mutually orthogonal single-polarized antennas of polarization direction, may be simultaneously operated in
Under transmission duplex pattern, the quantity of individual antenna is saved.Dual polarized antenna can also improve message capacity by channeling
Influence with multipath fading is reduced by polarity diversity, improves communication quality.However, increasingly with current wireless communications environment
The path loss of complexity, radio wave propagation is increasingly severe, and the dual polarized antenna of traditional low gain has been unable to meet present situation.Therefore,
Wideband dual polarized paster antenna with high-gain has obtained extensive research.
Currently, the design of most of high-gain aerials is not dual-polarized, or dual-polarized antenna is realized, still
Characteristic without high-gain.There are no a kind of designs, and the bipolar of high-gain is realized under the premise of not changing antenna physical size
Change paster antenna.
Document 1（X. Zhang and L. Zhu, "Gain-enhanced patch antennas with
loading of shorting pins,” IEEE Trans. Antennas Propag., vol. 64, no. 8, pp.
3310–3318, Aug. 2016.）It is proposed symmetrically introduces four plated-through holes on the diagonal line of a square patch, gold
The size of categoryization through-hole and position can change the field distribution of paster antenna, to increase the effective aperture of antenna, realize high increasing
Beneficial characteristic.
And the high-gain paster antenna proposed in document 1 is a kind of antenna of single polarization, frequency bandwidth is relatively narrow.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide it is a kind of with broad frequency band, high-gain it is bipolar
Change paster antenna.
To achieve the goals above, present invention employs following technical schemes：
A kind of high-gain broadband dual-polarized patch antenna, including from top to bottom set gradually first medium substrate, second be situated between
Matter substrate, third medium substrate and floor；The first medium substrate is equipped with the first square patch, is set on second medium substrate
There is the second square patch；The first medium substrate, second medium substrate and third medium substrate are equipped with mutual close to center
First square patch and the second square patch are connected by the plated-through hole of connection with floor.
Further, four side of the first square patch is respectively equipped with the first notch of triangular shape.
Further, four side of the second square patch is respectively equipped with the second notch of triangular shape；The second rectangular patch
Around the third notch equipped with " L " shape in the middle part of piece.
Further, third medium substrate upper surface is equipped with cross feeder line, four apexes of the cross feeder line
Further respectively have a dististyle；Each dististyle connects a conductor probe, and non-adjacent two probes provide a pair of of differential signal,
To realize a polarized excitation.
Further, the first medium substrate is equipped with the first plated-through hole, first metallization close to center
Through-hole is connect with the edge of the first square patch；The second medium substrate is equipped with third plated-through hole, institute close to center
Third plated-through hole is stated to connect with the edge of the second square patch；The third medium substrate is equipped with hardware close to center
Categoryization through-hole；First plated-through hole, third plated-through hole and fifth metal through-hole are mutually communicated.
Further, first medium base lower surface position corresponding with the first plated-through hole is equipped with the first weldering
Disk, first pad are connect with the second square patch；The second medium base lower surface is corresponding with third plated-through hole
Position be equipped with the second pad；It is welded equipped with third third medium substrate upper surface position corresponding with fifth metal through-hole
Disk；Second pad is connected with third pad.
Further, the edge of the upper and lower surface of the first medium substrate is with being respectively equipped with endless metal；Institute
State the upper and lower surface of second medium substrate with being respectively equipped with endless metal；The side of the upper surface of the third medium substrate
Edge is with also being provided with endless metal.
Further, the first medium substrate is equipped with the second plated-through hole in the position on corresponding endless metal ground；Institute
It states second medium substrate and is equipped with the 4th plated-through hole in the position on corresponding endless metal ground；The third medium substrate is in correspondence
The position on endless metal ground is equipped with the 6th plated-through hole；Second plated-through hole, the 4th plated-through hole and the 6th gold medal
Categoryization through-hole communicates setting, and is connected by connecting pole, with the connection with realizing each endless metal with floor.
Further, the third medium substrate is additionally provided with the 7th plated-through hole, and probe passes through the 7th plated-through hole
It is connected with the dististyle of cross feeder line.
Further, the first medium substrate, second medium substrate and third medium substrate, which are respectively equipped with, connects
Nonmetallic through-hole.
Beneficial effects of the present invention：
（1）Structure of the invention is simple, section is low, and is to realize dual polarized antenna using differential feed mode, is easy to other
Radio circuit is integrated；
（2）The dual-polarized patch antenna of the present invention has higher gain, in free transmission range（2.31~2.81GHz）, gain
Value inhibits interference signal ability strong all near 11dBi；
（3）The dual-polarized patch antenna of the present invention, two polarized states are the same, all have wider frequency range, radiance
Stablize, cross-polarization levels are relatively low, are suitble to current wireless communication system.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the upper surface of first medium substrate；
Attached drawing 2 is the structural schematic diagram of the lower surface of first medium substrate；
Attached drawing 3 is the structural schematic diagram of the first square patch；
Attached drawing 4 is the structural schematic diagram of the upper surface of second medium substrate；
Attached drawing 5 is the structural schematic diagram of the lower surface of second medium substrate；
Attached drawing 6 is the structural schematic diagram of the second square patch；
Attached drawing 7 is the structural schematic diagram of the upper surface of third medium substrate；
Attached drawing 8 is that third medium substrate does not install surface structure schematic diagram under cross feeder line state；
Attached drawing 9 is the structural schematic diagram of the lower surface of third medium substrate；
Attached drawing 10 is the close-up schematic view of part A in attached drawing 9；
Attached drawing 11 is the structural schematic diagram on floor；
Attached drawing 12 is the schematic cross-sectional view of inner antenna structure；
Attached drawing 13 is the size marking schematic diagram of first medium substrate；
Attached drawing 14 is the size marking schematic diagram of second medium substrate；
Attached drawing 15 is the size marking schematic diagram of third medium substrate；
Attached drawing 16 is antenna return loss curve graph with frequency change；
Attached drawing 17 is the gain curve graph with frequency change of antenna；
Attached drawing 18 is the degree of coupling curve graph with frequency change of antenna；
Attached drawing 19 is antenna antenna pattern on E surface radiations direction in 2.6GHz；
Attached drawing 20 is antenna antenna pattern on H surface radiations direction in 2.6GHz.
It is identified in figure：
2- first mediums substrate, the first square patch of 201-, the first notch of 2011-, 2012- first through hole, 202- are first annular
Metal, the first plated-through holes of 203-, the second plated-through holes of 204-, the first non-metallic through-holes of 205-, 206- first weldering
Disk, the second endless metals of 207-；
3- second mediums substrate, the second square patch of 301-, the second notch of 3011-, 3012- thirds notch, 3013- second are logical
Hole, 302- third endless metals, 303- thirds plated-through hole, the 4th plated-through holes of 304-, 305- second it is non-metallic
Through-hole, the second pads of 306-, 307- fourth annular metals；
4- thirds medium substrate, 401- crosses feeder line, 4011- dististyles, the 5th endless metals of 402-, 403- fifth metalizations it is logical
Hole, the 6th plated-through holes of 404-, the non-metallic through-hole of 405- thirds, 406- thirds pad, the 7th plated-through holes of 407-,
The 7th the 7th the 7th the 7th metals of plated-through hole c, 4074- of plated-through hole b, 4073- of plated-through hole a, 4072- of 4071-
Change through-hole d, 408- groove, 409- probes, 4010- connectors；
The floors 5-, 501- third through-holes, 502- fourth holes, 503- fifth holes, the 6th through-holes of 504-；
6- connecting poles.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In embodiments of the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ",
Terms such as " fixations " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside a element.For the ordinary skill in the art, Ke Yigen
Understand the concrete meaning of above-mentioned term in the present invention according to concrete condition.
A kind of high-gain broadband dual-polarized patch antenna is provided shown in attached drawing 12, in embodiment, is wrapped
Include the first medium substrate 2 from top to bottom set gradually, second medium substrate 3, third medium substrate 4 and floor 5；Described first
2 upper surface of medium substrate is equipped with the first square patch 201, and 3 upper surface of second medium substrate is equipped with the second square patch
301, the structure of stacked patch is formed in this way, can effectively broaden the impedance bandwidth of antenna.In embodiment, the first medium substrate
2, second medium substrate 3 and third medium substrate 4 are pcb board；The bottom plate 5 is metal floor.
Shown in 3, in embodiment, 2 upper surface of first medium substrate is equipped with the first square patch 201,
The center of the square patch 201 and the center of first medium substrate 2 coincide setting, and edge is parallel；The first party
201 4 side of shape patch is respectively equipped with the first notch 2011 of triangular shape, and first notch 2011 is evenly and symmetrically distributed on
The edge of one square patch 201；First notch 2011 is isosceles triangle shape；The rationally size of the first notch 2011 of setting
The impedance operator that antenna can be changed, further to broaden the impedance bandwidth of antenna.
In embodiment, the first medium substrate 2 is set close to medium position there are four the first plated-through hole 203, described
First plated-through hole 203 is arranged close to the edge of the first square patch 201, corresponds respectively to the four of the first square patch 201
The setting of a angle, the i.e. corresponding position in each angle of the first square patch 201 are all provided with there are one the first plated-through hole 203, and described
First plated-through hole 203 is located on the diagonal line of the first square patch 201；2 lower surface of first medium substrate is first
203 corresponding position of plated-through hole is equipped with the first pad 206, and first pad 206 offers and the first plated-through hole
The identical through-hole of 203 sizes；First square patch 201 203 corresponding position of the first plated-through hole be respectively equipped with
The identical first through hole of its size 2012.
Further, in embodiment, the top surface edge of the first medium substrate 2 equipped with first annular metal 202,
The lower surface edge of the first medium substrate 2 equipped with the second endless metal 207；The first annular metal 202 and
Second ring metal 207 position it is corresponding.In embodiment, the first medium substrate 2 corresponding to first annular metal 202
Position be evenly arranged with the second plated-through hole 204, corresponding first annular metal 202 and second endless metal 207
It is equipped with through-hole in corresponding position.
Shown in refer to the attached drawing 4 to 6, in embodiment, 3 upper surface of second medium substrate is equipped with the second square patch 301,
The center and the center of second medium substrate 3 of second square patch 301 coincide, and the parallel setting in edge；Described
Two square patch, 301 4 side is respectively equipped with the second notch 3011 of triangular shape, and is evenly and symmetrically distributed on the second square patch
301 edge；Second notch 3011 is isosceles triangle；Around setting, there are four " L " at second square patch, 301 middle part
The third notch 3012 of shape, the third notch 3012 are symmetrically arranged, and a quadrangle is integrally formed；Rationally setting second is cut
The size of mouth 3011 and third notch 3012, can be effectively improved the input impedance of antenna, further expand the resistance of antenna
Anti- bandwidth.
In embodiment, the second medium substrate 3 is set close to the position at middle part there are four third plated-through hole 303, institute
Third plated-through hole 303 is stated close to the edge of the second square patch 301, corresponds respectively to the four of the second square patch 301
One angle of a angle setting, i.e. the second square patch 301 corresponds to a third plated-through hole 303, and the third metallizes
Through-hole 303 is located on the diagonal line of the second square patch 301；It is logical that 3 lower surface of second medium substrate corresponds to third metallization
The position in hole 303 is equipped with the second pad 306, and second pad 306 offers identical with 303 size of third plated-through hole
Through-hole；Second square patch 301 also offers size identical second in 303 corresponding position of third plated-through hole and leads to
Hole 3013.In embodiment, the third plated-through hole 303 is corresponding with the first plated-through hole 203, i.e., after patch assembling
The third plated-through hole 303 is communicated with the first plated-through hole 203.
Further, the top surface edge of the second medium substrate 3 equipped with third endless metal 302, the second medium
3 lower surface edge of substrate equipped with fourth annular metal 307；The third endless metal 302 and fourth annular metal 307
Position it is corresponding.The second medium substrate 3 corresponding to third endless metal 302 to offer the 4th metallization logical for position
Hole 304, the edge for being surrounded on second medium substrate 3 of the 4th plated-through hole 304 symmetrically；Correspondingly, described
Three endless metals 302 and fourth annular metal 307 offer size in 304 corresponding position of the 4th plated-through hole respectively
Identical through-hole.In embodiment, the position of the 4th plated-through hole 304 is opposite with the position of the second plated-through hole 204
It answers, after paster antenna assembling, the 4th plated-through hole 304 and the second plated-through hole 204 communicate.
Shown in refer to the attached drawing 7 to 10, in embodiment, 4 upper surface of third medium substrate is equipped with cross feeder line 401；Described ten
The center of word feeder line 401 and the center of third medium substrate 4 coincide；Four apexes of the cross feeder line 401 are also distinguished
Equipped with a dististyle 4011.In embodiment, the third medium substrate 4 is additionally provided with fifth metal through-hole close to the position at middle part
403, position of the fifth metal through-hole 403 on third medium substrate 4 is with third plated-through hole 303 in second medium
Position on substrate 3 is identical, i.e., after paster antenna assembling, the fifth metal through-hole 403 and third plated-through hole 303
It connects；Further, the upper surface of the third medium substrate 4 is equipped with the in 403 corresponding position of fifth metal through-hole
Three pads 406, the third pad 406 offer through-hole identical with 403 size of fifth metal through-hole.
Further, in embodiment, the edge of 4 upper surface of third medium substrate equipped with the 5th endless metal 402,
5th endless metal 402 with fourth annular metal 307 positions it is corresponding；In embodiment, the third medium substrate 4
In the 5th endless metal 402 corresponding positions offer the 6th plated-through hole 404, the 6th plated-through hole 404 with
4th plated-through hole 304 is corresponding, the 6th plated-through hole 404 symmetrically be set to third medium substrate 4
Edge；402 offer and size identical through-hole corresponding with the 6th plated-through hole 404 to 5th endless metal.
Further, the third medium substrate 4 is additionally provided with four the 7th plated-through holes 407, the 7th metallization
Through-hole 407 is corresponding respectively at the dististyle 4011 of cross feeder line 401, i.e., a dististyle 4011 corresponds to the 7th plated-through hole
407.The lower surface of the third medium substrate 4 is equipped with groove 408 in 407 corresponding position of the 7th plated-through hole.
Shown in refer to the attached drawing 11, in embodiment, the floor 5 is equipped with corresponding with fifth metal through-hole 403 in corresponding position
Third through-hole 501；The floor 5 is equipped with fourth hole corresponding with the 6th plated-through hole 502 in corresponding position；It is described
Floor 5 is equipped with the 6th through-hole 504 corresponding with the 7th plated-through hole 407 in corresponding position.
Shown in refer to the attached drawing 12, in embodiment, the paster antenna further includes a conductor probe 409, and the probe 409 is inserted
Be inserted into one end in the 7th plated-through hole 407 of third medium substrate 4, and with 4011 joint of the dististyle of cross feeder line 401；
409 other end of the probe is arranged with a conductor adapting piece 4010；The connector 4010 is connected with floor 5.The patch day
The second plated-through hole 204, the 4th plated-through hole 304 of line are connected with the 6th plated-through hole 404 by connecting pole 6, institute
It is metal connecting pole to state connecting pole 6.In embodiment, the probe 409 is for providing pumping signal, the 7th plated-through hole
The probe 409 being inserted into a 4071 and the 7th plated-through hole b 4072 provides a pair of of differential signal, and phase difference is 180 degree, production
Raw vertical polarization radiation characteristic；The probe being inserted into the 7th plated-through hole c 4073 and the 7th plated-through hole d 4074
409 provide another pair differential signal, generate horizontal polarization radiation characteristic.
In embodiment, the paster antenna is additionally provided with the non-metallic through-hole for mounting medium substrate, specific as follows：Institute
Stating first medium substrate 2, in its endless metal the position between the first square patch 201 is equipped with the be uniformly and symmetrically distributed
One non-metallic through-hole 205；In its endless metal the position between the second square patch 301 of the second medium substrate 3
Equipped with the second non-metallic through-hole 305 being uniformly and symmetrically distributed；The third medium substrate 4 is equipped with the non-metallic through-hole of third
405, the floor 5 is equipped with fifth hole 503；The first non-metallic through-hole 205, the second non-metallic through-hole 305, third
Non-metallic through-hole 405 coincides with the projected position of fifth hole 503 in vertical direction, will to be inserted into nonmetallic rivet
Each layer medium substrate is layered in one piece and is fixed on floor 5 in order.
In embodiment, the paster antenna after assembling, first square patch, 201 and first plated-through hole 203
Be in contact realization electrical connection, and first plated-through hole 203 is in contact by the first pad 206 with the second square patch 301
Realize electrical connection；The realization that is in contact of second square patch 301 and third plated-through hole 303 be electrically connected, and the third is golden
Categoryization through-hole 303 is electrically connected by the contact between the second pad 306 and third pad 406 with the realization of fifth metal through-hole 403
It connects；The fifth metal through-hole 403 is electrically connected with floor 5；First plated-through hole 203, third plated-through hole 303
And fifth metal through-hole 403 can be conducted with floor 5.Second plated-through hole 204, the 4th plated-through hole
304 and the 6th plated-through hole 404 first annular metal 202, the second endless metal 207, third endless metal
302, fourth annular metal 307 and the 5th endless metal be connected between 402 and floor 5.
With the above arrangement, first plated-through hole 203, third plated-through hole 303 and fifth metalization are logical
The edge of first square patch 201 and the second square patch 301 and floor 5 are carried out short-circuit connection, Jin Ergai by the setting in hole 403
The distribution character for having become the original field of paster antenna, increases the Net long wave radiation aperture of paster antenna, and then improves paster antenna
Gain.Second plated-through hole 204, the 4th plated-through hole 304 and the 6th plated-through hole 404 are first annular gold
Possession 202, the second endless metal 207, third endless metal 302, fourth annular metal 307 and the 5th endless metal
It is connected between 402 and floor 5, forms the semi-open metal cavity structure of equipotential, further improve paster antenna gain.Together
When, the setting of stacked patch can broaden the impedance bandwidth of antenna, then by being rationally arranged on first square patch 201
The first notch 2011 size and the second notch 3011 and third notch 3012 on the second square patch 301 ruler
Very little size can be effectively improved the input impedance of antenna, expand the impedance bandwidth of antenna significantly.
With reference to experiment, the present invention will be further explained：
Shown in refer to the attached drawing 10,13,14 and 15, in experiment, first medium substrate 2, second medium substrate 3 and third medium substrate
4 are all made of the square pcb board that thickness is 3.175mm, the length of side is 140mm, dielectric constant 2.33, and loss angle tangent is
0.0012.Wherein each size of components of antenna：L1=140mm ,L2=62 mm,L3=20mm,L4=1.5mm, L5=43.4mm,R1=
8mm、R2=12mm、R3=1 mm、 R4=4mm、R5=0.65mm、R6=1.5mm、T1=64mm、T2=13mm、T3=28mm、T4=
2mm、T5 =5 mm、T6 =8 mm、T7=44.8 mm、I=0.8mm、 H=76 mm、Q=4mm。
Shown in refer to the attached drawing 16, it can be seen from the figure that since horizontal polarization and vertical polarization structure are full symmetric, obtain
Return loss relation curve with frequency change fit like a glove；There is it can be seen from the figure that, is less than -10dB in return loss
In the case of, the frequency range of the dual polarized antenna is 2.31 ~ 2.81GHz.
Shown in refer to the attached drawing 17, it can be seen from the figure that since horizontal polarization and vertical polarization structure are full symmetric, obtain
Yield value relation curve with frequency change fit like a glove.In 2.31 ~ 2.81GHz of free transmission range, yield value all exists
Near 11dBi.
Shown in refer to the attached drawing 18, since the dual polarized antenna uses differential feed mode, the coupling between two polarization ports
Conjunction is very small.In free transmission range（2.31~2.81GHz）, the degree of coupling is less than -50dB.
Shown in refer to the attached drawing 19 and 20, from E-plane and H-plane pattern as can be seen that the antenna has preferable directed radiation
Characteristic, and cross polarization very little.
A kind of high-gain broadband dual-polarized patch antenna of the present invention it can be seen from the above structure and experimental result, tool
There is simple in structure, low section, is easy to other radio circuits and is integrated in the same module；And have under each polarized state
Higher gain, wider frequency bandwidth, radiance is good, is very suitable for applying in nowadays wireless communication system.
Embodiment described above, only more preferably one of concrete mode of the invention, those skilled in the art are in the present invention
The usual variations and alternatives carried out in technical proposal scope should be all included within the scope of the present invention.
Claims (10)
1. a kind of high-gain broadband dual-polarized patch antenna, including the first medium substrate that from top to bottom sets gradually（2）,
Second medium substrate（3）, third medium substrate（4）The floor and（5）, it is characterised in that：The first medium substrate（2）It is equipped with the
One square patch（201）, second medium substrate（2）It is equipped with the second square patch（301）；The first medium substrate（2）,
Second medium substrate（3）With third medium substrate（4）Interconnected plated-through hole is equipped with close to center, by the first rectangular patch
Piece（201）With the second square patch（301）With floor（5）It is connected.
2. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The first rectangular patch
Piece（201）Four sides are respectively equipped with the first notch of triangular shape（2011）.
3. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The second rectangular patch
Piece（301）Four sides are respectively equipped with the second notch of triangular shape（3011）；Second square patch（301）Middle part surround and is equipped with
The third notch of " L " shape（3012）.
4. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The third medium base
Plate（4）Upper surface is equipped with cross feeder line（401）, the cross feeder line（401）Four apexes further respectively have a dististyle
（4011）；Each dististyle（4011）Connect a conductor probe（409）, non-adjacent two probes（409）It is a pair of poor to provide
Sub-signal, to realize a polarized excitation.
5. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The first medium base
Plate（2）It is equipped with the first plated-through hole close to center（203）, first plated-through hole（203）With the first square patch
（201）Edge connection；The second medium substrate（3）It is equipped with third plated-through hole close to center（303）, the third
Plated-through hole（303）With the second square patch（301）Edge connection；The third medium substrate（4）It is set close to center
There is fifth metal through-hole（403）；First plated-through hole（203）, third plated-through hole（303）With fifth metal
Through-hole（403）It is mutually communicated.
6. high-gain broadband dual-polarized patch antenna according to claim 5, it is characterised in that：The first medium base
Plate（2）Lower surface and the first plated-through hole（203）Corresponding position is equipped with the first pad（206）, first pad（206）
With the second square patch（301）Connection；The second medium substrate（3）Lower surface and third plated-through hole（303）It is corresponding
Position is equipped with the second pad（306）；The third medium substrate（4）Upper surface and fifth metal through-hole（403）Corresponding position
Third pad is installed（406）；Second pad（306）With third pad（406）It is connected.
7. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The first medium base
Plate（2）Upper and lower surface edge with being respectively equipped with endless metal；The second medium substrate（2）Upper surface and under
Surface is with being respectively equipped with endless metal；The third medium substrate（3）Upper surface edge with also being provided with endless metal.
8. high-gain broadband dual-polarized patch antenna according to claim 7, it is characterised in that：The first medium base
Plate（2）It is equipped with the second plated-through hole in the position on corresponding endless metal ground（204）；The second medium substrate（3）In correspondence
The position on endless metal ground is equipped with the 4th plated-through hole（304）；The third medium substrate（4）On corresponding endless metal ground
Position is equipped with the 6th plated-through hole（404）；Second plated-through hole（204）, the 4th plated-through hole（304）With the 6th
Plated-through hole（404）Setting is communicated, and by connecting pole（6）Connection, with realizing each endless metal and floor（5）Connection.
9. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The third medium base
Plate（4）It is additionally provided with the 7th plated-through hole（407）, probe（409）Across the 7th plated-through hole（407）With cross feeder line
（401）Dististyle（4011）It is connected.
10. high-gain broadband dual-polarized patch antenna according to claim 1, it is characterised in that：The first medium
Substrate（2）, second medium substrate（3）With third medium substrate（4）It is respectively equipped with the nonmetallic through-hole to connect.
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| CN201810572140.4A CN108808233B (en) | 2018-06-06 | 2018-06-06 | High-gain broadband dual-polarized patch antenna |
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| CN108808233B CN108808233B (en) | 2024-01-30 |
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