CN207426160U - High-gain broadband micro-strip paster antenna - Google Patents
High-gain broadband micro-strip paster antenna Download PDFInfo
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- CN207426160U CN207426160U CN201720748398.6U CN201720748398U CN207426160U CN 207426160 U CN207426160 U CN 207426160U CN 201720748398 U CN201720748398 U CN 201720748398U CN 207426160 U CN207426160 U CN 207426160U
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Abstract
The utility model provides a kind of high-gain broadband micro-strip paster antenna, and including floor, the dielectric-slab being arranged on floor, primary radiation patch, which is located at distance H above floorpPlace, shape is rectangle, the distance H above the primary radiation patchsPlace is equipped with top parasitic patch, and shape is similarly rectangle, the D on the outside of the primary radiation patch edgepPlace, setting four are H apart from floor levelc, length and width are respectively Ls、WsRectangular horizontal parasitic patch, be provided with distributing point on the primary radiation patch, which is connected to the feeding network of the dielectric-slab.It that is to say and leave distance between the primary radiation patch and floor, distance is left between the top parasitic patch and the primary radiation patch.The utility model provides a kind of high-gain, broadband, dual polarization, low or without secondary lobe, high cross polarization, high isolation, broad beam, miniaturization, low section, low cost, the antenna for base station easily produced for microcellular mobile communication.
Description
【Technical field】
It is micro- more particularly to high-gain broadband the utility model is related to a kind of mobile communication micro-base station antenna equipment and technology
Band patch and its technology.
【Background technology】
As network deployment density constantly increases, mobile communication has realized that signal wide area continuously covers substantially.It is however, limited
Limitation in working band and overlay area, macrocellular are difficult to meet the needs of high data transmission rate and big power system capacity, and
Size is big, addressing is difficult, of high cost.In contrast, micro-base station is with size is small, section is low, easy to install, concealment is strong, low cost
Etc. advantages, be suitble to the intensive local high-speed data service of user.This kind of antenna for base station generally possess medium gain (8-14dBi),
The features such as broad beam (horizontal ripple is 65 ° wide, 90 ° or more), dual polarization, MIMOization, to cover large area, service is relatively mostly used
Family, so as to obtain good coverage effect and preferable economy.In addition, it is raw to be also equipped with small size, low section, low cost, easily batch
The advantages that production.Due to low section, the requirement of planarization, conventional cross oscillator scheme is not suitable for micro-base station.It is presently used for micro-base station
Mainly have two kinds of microband paste and microstrip slot antenna.It is well known that micro-strip paster antenna has low section, planarization, fits
Sum of fundamental frequencies bandwidth, easily integrated with circuit, low cost, high-precision etc. advantages, be 20th century utility model important antenna type, exist
The fields such as mobile communication, satellite navigation, radar, aerospace are applied widely.However, there are bandwidth for micro-strip paster antenna
Significant drawback relatively narrow, gain is relatively low.By numerous studies, the various effective ways for expanding bandwidth are found, such as
Low εrThick substrate, coplanar/to be stacked parasitic patch, broadband matching network etc..In contrast, the shortcomings that gain is low is but so far not yet
Overcome, correlative study is also seldom.Tracing it to its cause is, it is believed that can be readily available higher increasing after single Microstrip Patch Antenna Arrays
Benefit.Especially to the big array of high-gain, unit performance it is good and bad to array effects and indecisive, such as by increasing array number
With feed weighting algorithm, high-gain Oriented Graphics with Assigned Form can be obtained.Nevertheless, the unquestionable meaning of the improvement of unit performance is huge
Big.Theoretically, the gain of Section of Microstrip Antenna Array can be infinitely great.In fact, when there are many array element quantity, feeding network by
Big in size, total losses (ohmic loss, dielectric loss and radiation loss) are quite big, and almost gain increased with array element improves
Value is suitable.In other words, array element, which increases the increase in gain brought and is almost fed via net loss, falls.Exactly this reality
Factor, the gain for significantly limiting micro-strip array antenna is promoted, therefore common gain only 25~30dBi.
Correspondingly, if if module gain can promote 3dBi, array gain will also improve 3dBi, this increases by one with array number
Gain lifting capacity again is suitable, but array sizes reduce half, and loss, design and the debugging complexity of feeding network also all drop
It is low.For large-scale array of microstrip patches, meaning is self-evident for this.It is moreover, tight for this size of micro-base station
Lattice are limited, can not be promoted by increasing array element for the occasion of gain, and improvement amount is even more huge, directly determines that scheme can
Infeasible problem.
【The content of the invention】
The purpose of this utility model is to provide a kind of high-gains, broadband, dual polarization, high isolation, broad beam, small-sized
Change, the high-gain broadband micro-strip paster antenna of low section.
To realize the utility model aim, following technical scheme is provided：
The utility model provides a kind of high-gain broadband micro-strip paster antenna, including floor, Jie being arranged on floor
Scutum, primary radiation patch, primary radiation patch distance H above floorpPlace, shape is rectangle, above the primary radiation patch
Distance HsTop parasitic patch of the place equipped with rectangle, the D on the outside of the primary radiation patch edgepPlace sets four apart from floor
Highly it is Hc, length and width are respectively Ls、WsRectangular horizontal parasitic patch, be provided with distributing point on the primary radiation patch, the feed
Point is connected to the feeding network of the dielectric-slab.It that is to say and leave distance between the primary radiation patch and floor, the top is parasitic
Distance is left between patch and the primary radiation patch.
The utility model is carried by setting the top parasitic patch being stacked, horizontal parasitic patch for microcellular mobile communication
For a kind of high-gain, broadband, dual polarization, it is low or without secondary lobe, high cross polarization, high isolation, broad beam, miniaturization, low section,
Low cost, the antenna for base station easily produced.
Preferably, which is that the length of side is ap, thickness TpSquare patch, and parallel with floor, which posts
Raw patch is that the length of side is ar, thickness TrSquare patch, ar＜ ap, which is about the main spoke away from floor level
Penetrate twice of patch away from floor level, it is preferred that the top parasitic patch size is slightly smaller than primary radiation patch size, Hs=2Hp。
Preferably, the top parasitic patch shape is identical with the primary radiation patch shape.
Preferably, top parasitic patch is located at directly over primary radiation patch, and vertex is without the parasitic minor matters of loading.
Preferably, using four angle steel joints of the primary radiation patch as starting point, extend a pair of of end towards two right-angle sides respectively and open
The parasitic minor matters on road, it is preferred that the parasitic minor matters that four angle steel joints of the primary radiation patch are set are symmetrical L-shaped minor matters.
Preferably, outside vertex sets the parasitic minor matters that a group end is opened a way respectively in four horizontal parasitic patch,
Preferably, the parasitic minor matters that outside vertex is set in four horizontal parasitic patch are symmetrical L-shaped minor matters, and adjacent level is parasitic
The subapical L-shaped minor matters of facing of patch are connected as a single entity.
Preferably, the width of the horizontal parasitic patch is more than the width of the primary radiation patch, the horizontal parasitic patch length
Less than the primary radiation patch length, and Hc＞ Hs＞ Hp.Preferably, the horizontal parasitic patch is away from a little higher than top of floor level
Parasitic patch is away from floor level.
Preferably, primary radiation patch length ap=0.5 λg/sqrt(εr)-2·Hp, about 0.5 λg, the L-shaped minor matters
Parallel primary radiation patch edges extend about 0.125 λ towards adjacent vertex directiong, wherein λgCentered on frequency guide wavelength, εr
For the dielectric constant of antenna substrate.
Preferably, on the floor of the primary radiation patch edges down either side, four and primary radiation patch edges are offered
The parallel rectangle line of rabbet joint, it is preferred that the floor line of rabbet joint is located at below the edge of the close primary radiation patch of the horizontal parasitic patch
Floor on, and most of covered by horizontal parasitic patch.Preferably, it is wide to be more than primary radiation patch for the slot length dimension on floor
Size is spent, and is sealed it completely with metal cap in ground back.
Preferably, the feeding classification of the high-gain broadband micro-strip paster antenna uses orthogonal double-fed scheme, including four institutes
Distributing point is stated, is set on two center line of primary radiation patch or on diagonal on central point, it is preferred that two distributing points
It is spaced about the 1/3~1/4 of primary radiation patch length.
Preferably, each distributing point is connected to the feeding network of dielectric-slab by metal column, forms two-way orthogonal feed circuit,
Often grade work(all the way bifurcate length and differ 0.5 λg, wherein λgCentered on frequency guide wavelength, to realize two distributing points
180 ° of difference.
Preferably, the floor is identical with primary radiation patch shape, it is preferred that ground board size is at least primary radiation patch size
3 times, air, foam or other common vehicle materials are filled between floor and primary radiation patch, it is preferred that metal cap and slot etc.
Length and width, height and the width size is suitable, and much smaller than its length.
The prior art is compared, the utility model has the following advantages：
The utility model provides a kind of high-gain, broadband, dual polarization, low or without secondary lobe, height for microcellular mobile communication
Cross polarization, high isolation, broad beam, miniaturization, low section, low cost, the antenna for base station easily produced.By setting stacking simultaneously
Parasitic patch and coplanar parasitic patch and rectangular aperture is opened in patch edges underlying floor, by the gain of single microband paste
It is improved from current 9dBi to 12dBi, improves 3dBi than conventional method, while increase by 15% bandwidth, reach 29% or so
Ultra wide band is horizontal.In addition, this method also has thinking novelty, clear principle, method is pervasive, realization is simple, inexpensive, suitable batch
The features such as amount production, is to realize broad beam high-gain small cell antennas, is suitble to miniaturization, low section, high-gain micro-base station
Preferred embodiment, and design for conventional broadband, high gain array antenna and to improve be also to be applicable in and effective can be notable
Feeding network loss is reduced, increases array scale.
The utility model is by taking following measures：1) length of side, height, position and the vertex L of primary radiation patch are optimized
Shape minor matters and filling base material；2) optimally board size, shape and slot shape, size and position；3) the parasitic patch in optimization top
The length of side, position and the height of piece；4) shape, size, height, position and the vertex L-shaped minor matters of flat plane patch are optimized；5)
Optimize the diameter of the position of orthogonal feed point, spacing and feeder pillar；6) optimize the impedance matchings of PCB feeding networks, bandwidth and
Insertion Loss obtains what more conventional scheme was difficult to realize：First, high-gain, the perfect Gain is up to 12.85dBi, and (E/H surface waves are wide about
35 °/46 °), it is also higher 1dBi or so than two patch array gains；Squarish wave beam is suitable with 2 × 2 planar arrays；2nd, broadband
2.4G frequency ranges (2.11-2.85GHzz, BW=29.84%) are completely covered in width；3rd, without secondary lobe, without the side of conventional patch array
Valve；4th, high cross polarization ratio and front and rear ratio, XPD is less than -48dB in main lobe, is more than 17.5dB with interior FTBR；5th, ± 45 ° or H/
V dual-linear polarizations, high-isolation (| S21|<-25dB)；6th, miniaturization and low section, length and width and height are respectively smaller than 1.45 λCWith
0.11·λC；7th, feed design is simple.Compared with the four unit patch array of dual polarization for waiting gains, feeding network designs at least
Simplify a quarter, a port only needs work(point all the way.
【Description of the drawings】
Fig. 1 is the schematic diagram that defines of rectangular coordinate system used by antenna model；
Fig. 2 is the utility model primary radiation patch and its vertex minor matters, fluting floor and top parasitic patch combination is overlooked
Figure；
Fig. 3 is the utility model primary radiation patch and its vertex minor matters, fluting floor and top parasitic patch combination is faced
Figure；
Fig. 4 is the horizontal parasitic patch unit of the utility model and its top view of vertex minor matters；
Fig. 5 is the top view of horizontal four unit unit of the parasitic patch combination of the utility model；
Fig. 6 is the top view of the utility model high-gain broadband micro-strip paster antenna complete principle model；
Fig. 7 is the front view of the utility model high-gain broadband micro-strip paster antenna complete principle model；
Fig. 8 is the side view of the utility model high-gain broadband micro-strip paster antenna complete principle model；
Fig. 9 is the utility model high-gain broadband micro-strip paster antenna H/V dual polarization supply network road schematic diagrames；
Figure 10 is the input impedance Z of the utility model high-gain broadband micro-strip paster antennainFrequency characteristic；
Figure 11 is the utility model high-gain broadband micro-strip paster antenna in fLThe gain pattern of=2.11GHz；
Figure 12 is the utility model high-gain broadband micro-strip paster antenna in fCThe gain pattern of=2.45GHz；
Figure 13 is the utility model high-gain broadband micro-strip paster antenna in fHThe gain pattern of=2.85GHz；
Figure 14 is the gain G vs.f variation characteristics of the utility model high-gain broadband micro-strip paster antenna；
Figure 15 is E faces/H faces half-power beam width HBPW of the utility model high-gain broadband micro-strip paster antenna
Vs.f variation characteristics；
Figure 16 is the front and rear than FTBR vs.f variation characteristics of the utility model high-gain broadband micro-strip paster antenna；
Figure 17 is the antenna cross-polarization of the utility model high-gain broadband microband paste than XPD vs.f variation characteristics；
Figure 18 is the radiation efficiency η vs.f variation characteristics of the utility model high-gain broadband micro-strip paster antenna.
This paper attached drawings be for being expanded on further and understand to the utility model, and a part for constitution instruction,
With together with specific embodiment of the utility model for explaining the utility model, but do not form limitation to the utility model or
It limits.
【Specific embodiment】
The preferred embodiment of utility model patent is provided below in conjunction with the accompanying drawings, the technical side of the utility model is described in detail
Case.Here, respective drawings will be provided the utility model is described in detail.It is it should be strongly noted that as described herein
Example is preferably implemented to be only used for describing and explaining the present invention, is not limited to or limits this utility model.
Please refer to Fig.1~9, in the utility model embodiment, high-gain broadband micro-strip paster antenna structure in the following way
It makes：
Step 1 establishes rectangular coordinate system in space, sees Fig. 1；
Step 2 sets metal floor.In XOY plane, centered on coordinate origin O, it is W to construct a length of sideg, thickness
For TgSquare metal floor 20, as the ground level of antenna, see Fig. 2；
Step 3 sets primary radiation patch.The distance H directly over the metal floor of step 2pPlace, equally with coordinate origin
Centered on, it is a to make a length of sidep, thickness TpSquare patch, as primary radiation patch 10, see Fig. 2；
Step 4, primary radiation patch set up minor matters.Using 10 4 angle steel joints of primary radiation patch of step 3 as starting point, respectively
Extend the symmetrical L-shaped minor matters 11 of a pair of of terminal open circuit towards two right-angle sides, see Fig. 2, Fig. 3；
Step 5 sets top parasitic patch.The distance H directly over the primary radiation patch 10 of step 3sPlace sets one
The length of side is ar, thickness TrSquare patch, as the top parasitic patch 30 of primary radiation patch, see Fig. 2, Fig. 3；
Step 6, floor fluting seam.On the floor below 10 both sides of edges of primary radiation patch of step 3, open four with
10 sides aligned parallel of primary radiation patch, the identical rectangle line of rabbet joint 21, and sealed it completely with metal cap in ground back,
See Fig. 2, Fig. 3, Fig. 6, Fig. 7 and Fig. 8；
Step 7 sets up horizontal parasitic patch.The D on the outside of 10 Edge Distance of primary radiation patch of step 3 its surroundingpPlace,
It is H to set a heightc, length and width are respectively Ls、WsRectangular horizontal parasitic patch 40, and inside outside vertex set one respectively
The symmetrical L-shaped minor matters 41,42 of group, then by four, the horizontal parasitic patch 40 lines up round battle array.The floor line of rabbet joint 21 of step 6, is located at
Below the edge of 10 patch of close primary radiation of the horizontal parasitic patch 40.See Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8；
Step 8 sets duplex feeding point.Four distributing points of setting on 10 liang of center lines of primary radiation patch of step 3, two
Two, on central point, form orthogonal two-way double-fed point.Then, two pairs of distributing points are connected to by four metal columns 50
PCB feeding networks on floor 20 are shown in the part 50 of Fig. 6, Fig. 7 and Fig. 8；
Step 9, Design PCB feeding network.In 20 upper or lower surface of metal floor of step, one layer of dielectric-slab, table are set
Print out four feeder pillars 50 of two road network of feed, respectively Connection Step eight in face；Main road 60,61 separates the work(such as two-way point respectively
Branch 601,602 and 611,612, is connected respectively with two feeder pillars, between branch 601,602 that each main road separates and 611,612
Length differ half of 0.5 λ of instructor in broadcasting's wavelengthC, to realize the difference of 180 ° of two distributing point, see Fig. 9.
In the present embodiment, the above-mentioned obtained high-gain micro-strip paster antenna of building method including floor 20, is arranged on
Dielectric-slab (not identifying), the primary radiation patch 10 of floor upper or lower surface, the primary radiation patch 10 distance H above floor 20p
Place, shape are rectangle, length of side ap=0.5 λg, thickness Tp, wherein λgCentered on frequency guide wavelength.The primary radiation is pasted
Piece 10 is parallel with floor 20, is set on the primary radiation patch 10 there are four distributing point, which is connected by metal column 50
To the feeding network of the dielectric-slab.
Using four angle steel joints of the primary radiation patch as starting point, extend the symmetrical of a pair of of terminal open circuit towards two right-angle sides respectively
L-shaped minor matters 11, the parallel primary radiation patch edges of the L-shaped minor matters extend about 0.125 λ towards adjacent vertex directiong, wherein λgFor in
The guide wavelength of frequency of heart.
The distance H directly over the primary radiation patch 10sPlace is equipped with top parasitic patch 30, which is the length of side
For ar, thickness TrRectangular patch, shape is identical with the primary radiation patch shape, ar＜ ap, Hs=2Hp, vertex is without loading L-shaped
Minor matters.
In the 10 four side edge of primary radiation patch D on the outside of its surroundingpPlace, setting four are H apart from floor levelc, it is long
Width is respectively Ls、WsRectangular horizontal parasitic patch 40, the horizontal parasitic patch is away from floor level HcThe parasitic patch in a little higher than top
Pitch of fins floor level Hp.Outside vertex sets one group of symmetrical L-shaped minor matters 41,42 respectively in this four horizontal parasitic patch 40,
The subapical L-shaped minor matters of facing of adjacent level parasitic patch are connected as a single entity.
On the floor below the edge of 10 patch of close primary radiation of the horizontal parasitic patch 40, offer four with
The rectangle line of rabbet joint 21 of 10 sides aligned parallel of primary radiation patch, the line of rabbet joint 21 is most of to be covered by horizontal parasitic patch 40, the slot 21
Length dimension is more than 10 length dimension of primary radiation patch, and is sealed it completely with metal cap in ground back.
Four distributing points are set on 10 liang of center lines of primary radiation patch or on diagonal on central point
It puts, two distributing points are spaced about the 1/3~1/4 of primary radiation patch length.Each distributing point is connected to dielectric-slab by metal column 50
Feeding network, form two-way orthogonal feed circuit, per all the way wait work(bifurcate length differ 0.5 λg, wherein λgFor in
The guide wavelength of frequency of heart, to realize the difference of 180 ° of two distributing point.
The metal floor 20 is identical with 10 shape of primary radiation patch, and 20 size of floor is at least 10 size of primary radiation patch
3 times, filling air, foam or other common vehicle materials between floor 20 and primary radiation patch 10, the length and width such as metal cap and slot,
Its height and the width size is suitable, and much smaller than its length.
The utility model obtains what more conventional scheme was difficult to realize：First, high-gain, the perfect Gain are up to 12.85dBi
(E/H surface waves are about 35 °/46 ° wide), it is also higher 1dBi or so than two patch array gains；Squarish wave beam, with 2 × 2 planar array phases
When；2nd, 2.4G frequency ranges (2.11-2.85GHzz, BW=29.84%) are completely covered in wide bandwidth；3rd, without secondary lobe, without conventional patch
The secondary lobe of chip arrays；4th, high cross polarization ratio and front and rear ratio, XPD is less than -48dB in main lobe, is more than 17.5dB with interior FTBR；
5th, ± 45 ° or H/V dual-linear polarizations, high-isolation (| S21|<-25dB)；6th, miniaturization and low section, length and width and height are small respectively
In 1.45 λCWith 0.11 λC；7th, feed design is simple.Specific Data Representation please refers to Fig.1 0~18.
Figure 10 is the input impedance Z of the utility model high-gain broadband micro-strip paster antennainFrequency characteristic；Wherein,
Transverse axis (X-axis) is frequency f, unit GHz；The longitudinal axis (Y-axis) is impedance Zin, unit Ω.Wherein, solid line represents real part Rin, it is empty
Line represents imaginary part Xin.Known by figure, in 2.11-5.85GHz frequency ranges, real and imaginary parts excursion is respectively：+ 7.5~+27.5
Ω ,+42~-+56.5 Ω, have significant ultra wide band impedance operator, and one super wide band microstrip matching network of design can match.
Figure 11 represents high-gain broadband micro-strip paster antenna in fLThe gain pattern of=2.11GHz；Wherein, based on solid line
Polarization, dotted line is cross polarization；Fair line is E faces, and dotted line is H faces.Known by figure, E faces half-power ripple is HPBW=47.33 ° wide, H
Face half-power ripple is HPBW=67.78 ° wide；Gain G=9.45dBi；Cross polarization XPD in main lobe<- 55dB, polarization purity are more non-
Chang Hao.
Figure 12 represents high-gain broadband micro-strip paster antenna in fCThe gain pattern of=2.45GHz.Wherein, based on solid line
Polarization, dotted line is cross polarization；Fair line is E faces, and dotted line is H faces.Known by figure, E faces half-power ripple is HPBW=36.13 ° wide, H
Face half-power ripple is HPBW=46.51 ° wide；Gain G=12.51dBi；Cross polarization XPD in main lobe<- 65dB, polarization purity are more non-
Chang Hao.
Figure 13 represents high-gain broadband micro-strip paster antenna in fHThe gain pattern of=2.85GHz.Wherein, based on solid line
Polarization, dotted line is cross polarization；Fair line is E faces, and dotted line is H faces.Known by figure, E faces half-power ripple is HPBW=24.99 ° wide, H
Face half-power ripple is HPBW=34.63 ° wide；Gain G=10.22dBi；Cross polarization XPD in main lobe<- 50dB, polarization purity is more very
It is good.
Figure 14 represents the gain G vs.f variation characteristics of high-gain broadband micro-strip paster antenna.Wherein, transverse axis (X-axis) is frequency
Rate f, unit GHz；The longitudinal axis (Y-axis) is gain, unit dBi.Known by figure, antenna (BW=in 2.11-5.85GHz frequency bands
740MHz, 29.84%), gain is 9.5~12.58dBi, and 3dB gain bandwidths and impedance bandwidth are completely the same, and polarise
Gain-frequency characterisitic is just the same
Figure 15 represents that E faces/H faces half-power beam width HBPWvs.f variations of high-gain broadband micro-strip paster antenna are special
Property.Wherein, transverse axis (X-axis) is frequency f, unit GHz；The longitudinal axis (Y-axis) is beam angle, unit degree of being (deg)；Solid line is E
Face, dotted line are H faces.Known by figure, in 2.11~5.85GHz frequency bands, E faces/H faces half-power ripple wide scope is respectively：HPBW=
25~48 °/34.6~67.8 °, and the ripple broadband characteristic to polarise is just the same.
Figure 16 represents the front and rear than FTBR vs.f variation characteristics of high-gain broadband micro-strip paster antenna.Wherein, transverse axis (X
Axis) it is frequency f, unit GHz；The longitudinal axis (Y-axis) is FTBR, unit dB.Known by figure, antenna is in 2.11-5.85GHz frequency bands
(BW=740MHz, 29.84%), front and rear than FTBR is respectively 17.5~24.5dB, and it is front and rear completeer than frequency characteristic to polarise
It is complete the same.
Figure 17 represents the cross polarization of high-gain broadband micro-strip paster antenna than XPD vs.f variation characteristics.Wherein, transverse axis
(X-axis) is frequency f, unit GHz；The longitudinal axis (Y-axis) is XPD, unit dB.Known by figure, antenna is in 2.11-5.85GHz frequency bands
Interior (BW=740MHz, 29.84%), XPD is compared in cross polarization<- 48dB, it is ideal, and the XPD frequency characteristics to polarise are complete
Equally.
Figure 18 represents the radiation efficiency η vs.f variation characteristics of high-gain broadband micro-strip paster antenna.Wherein, transverse axis (X-axis)
It is frequency f, unit GHz；The longitudinal axis (Y-axis) is radiation efficiency.Known by figure, antenna (BW=in 2.11-5.85GHz frequency bands
740MHz, 29.84%), radiation efficiency tap nearly 100%, in addition matching network aft antenna efficiency still can reach more than 90%.
It these are only the preferred embodiment of the utility model, be not limited to or limit the utility model.For this
For the research in field or technical staff, various modifications and changes may be made to the present invention.All spirit in the utility model
Within principle, any modifications, equivalent replacements and improvements are made should be included in the protection model that the utility model is stated
Within enclosing.
Claims (10)
1. a kind of high-gain broadband micro-strip paster antenna, which is characterized in that it include floor, the dielectric-slab being arranged on floor,
Primary radiation patch, the primary radiation patch are located at distance H above floorpPlace, shape is rectangle, the distance above the primary radiation patch
HsTop parasitic patch of the place equipped with rectangle, the D on the outside of the primary radiation patch edgepPlace sets four apart from floor level
For Hc, length and width are respectively Ls、WsRectangular horizontal parasitic patch, be provided with distributing point on the primary radiation patch, the distributing point connect
It is connected to the feeding network of the dielectric-slab.
2. high-gain broadband micro-strip paster antenna as described in claim 1, which is characterized in that right with the primary radiation patch four
Angle point is starting point, extends the parasitic minor matters of a pair of of terminal open circuit towards two right-angle sides respectively, in four horizontal parasitic patch
Outside vertex also sets the parasitic minor matters that a group end is opened a way respectively.
3. high-gain broadband micro-strip paster antenna as claimed in claim 2, which is characterized in that four angle steel joints of primary radiation patch
The parasitic minor matters of setting are symmetrical L-shaped minor matters, and the parasitic minor matters that outside vertex is set in four horizontal parasitic patch are also
Symmetrical L-shaped minor matters, the subapical L-shaped minor matters of facing of adjacent level parasitic patch are connected as a single entity.
4. high-gain broadband micro-strip paster antenna as claimed in claim 3, which is characterized in that positioned at the horizontal parasitic patch
On the floor below the edge of primary radiation patch, four rectangle lines of rabbet joint parallel with primary radiation patch edges are offered.
5. high-gain broadband micro-strip paster antenna as claimed in claim 4, which is characterized in that the primary radiation patch is that the length of side is
apSquare patch, and parallel with floor, which is that the length of side is arSquare patch, ar＜ ap, Hs=2Hp。
6. high-gain broadband micro-strip paster antenna as claimed in claim 5, which is characterized in that primary radiation patch length ap=
0.5·λg/sqrt(εr)-2·Hp, the parallel primary radiation patch edges of the L-shaped minor matters, towards adjacent vertex direction extension 0.125
λg, wherein λgCentered on frequency guide wavelength, εrFor the dielectric constant of antenna substrate.
7. high-gain broadband micro-strip paster antenna as claimed in claim 6, which is characterized in that the width of the horizontal parasitic patch
More than the width of the primary radiation patch, which is less than the primary radiation patch length, and Hc＞ Hs＞ Hp, should
The slot length dimension on floor is more than primary radiation patch width size, and is sealed it completely with metal cap in ground back.
8. such as claim 1~7 any one of them high-gain broadband micro-strip paster antenna, which is characterized in that feeding classification is adopted
With orthogonal double-fed scheme, including four distributing points, on center on two center line of primary radiation patch or on diagonal
Point symmetry is set, and two distributing point spacing are the 1/3~1/4 of main radiation patch length.
9. high-gain broadband micro-strip paster antenna as claimed in claim 8, which is characterized in that each distributing point is connected by metal column
Be connected to the feeding network of dielectric-slab, form two-way orthogonal feed circuit, per all the way work(is waited to bifurcate length difference 0.5
λg, wherein λgCentered on frequency guide wavelength.
10. high-gain broadband micro-strip paster antenna as claimed in claim 8, which is characterized in that the ground board size is at least led
3 times of radiation patch size fill air, foam between floor and primary radiation patch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720748398.6U CN207426160U (en) | 2017-06-26 | 2017-06-26 | High-gain broadband micro-strip paster antenna |
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| CN201720748398.6U CN207426160U (en) | 2017-06-26 | 2017-06-26 | High-gain broadband micro-strip paster antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230840A (en) * | 2017-06-26 | 2017-10-03 | 广东通宇通讯股份有限公司 | High-gain broadband micro-strip paster antenna |
| CN111029759A (en) * | 2019-12-05 | 2020-04-17 | 南京理工大学 | SIW parallel feed array antenna with low cross polarization |
-
2017
- 2017-06-26 CN CN201720748398.6U patent/CN207426160U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230840A (en) * | 2017-06-26 | 2017-10-03 | 广东通宇通讯股份有限公司 | High-gain broadband micro-strip paster antenna |
| CN107230840B (en) * | 2017-06-26 | 2023-08-08 | 广东通宇通讯股份有限公司 | High gain broadband microstrip patch antenna |
| CN111029759A (en) * | 2019-12-05 | 2020-04-17 | 南京理工大学 | SIW parallel feed array antenna with low cross polarization |
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