CN104319474B - City-wall-shaped aperture multilevel coupling plane directing multi-application laminated antenna - Google Patents
City-wall-shaped aperture multilevel coupling plane directing multi-application laminated antenna Download PDFInfo
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Abstract
The invention provides a city-wall-shaped aperture multilevel coupling plane directing multi-application laminated antenna and relates to a microstrip antenna. The city-wall-shaped aperture multilevel coupling plane directing multi-application laminated antenna is provided with an upper substrate and a lower substrate. Metal layers are laid on the upper surface of the upper substrate and the upper surface of the lower substrate so that square patches can be formed. A corner symmetrical triangle corner cut structure is adopted by the upper square patch. City-wall-shaped aperture pairs which are symmetric about the geometric center of the upper patch are formed in the upper square patch, so that city-wall-shaped gap arrays are formed. Coupled cavities are formed between the city-wall-shaped gaps with electromagnetic coupling, four control coupled cavities at the 45-degree angle positions are arranged on the joint position of two sets of orthogonal city-wall-shaped gap arrays. A corner symmetrical triangle corner cut structure is adopted by the lower square patch. The middles of the four edges of the lower square patch are each provided with a rectangular groove, so that a fractal-like structure is formed, and directing arms which are symmetrical about the center of the lower square patch are arranged on the periphery of the four edges of the lower square patch. A good conductor layer is laid on the lower surface of the lower square patch as a grounded plate, and three feed connectors are arranged on the lower surface of the lower substrate.
Description
Technical field
The present invention relates to a kind of microstrip antenna, especially relate to a kind of compatible with GPS and Beidou satellite navigation system work frequency
The multistage couple planar of city wall shape slit of section guides many application laminated antennas into.
Background technology
Beidou satellite navigation system (BDS) is the Chinese independent development capability implemented, the global navigation satellite of independent operating
System, is devoted to providing high-quality positioning, navigation, time service service to Global Subscriber, and can use to the mandate having requirements at the higher level
Family provides and services further, military has concurrently with civil purpose.Beidou satellite navigation system, american global positioning system (GPS), Russia
Ross glonass system (GLONASS) and European Union's GALILEO positioning system (GALILEO) are satellite navigation committee of the United Nations
The big core supplier of GPS four assert[1].
Antenna Design and manufacturing technology are one of core key technologies of satellite, every characteristic of antenna and form size pole
Have impact on to big degree service behaviour and the application of satellite, developing rapidly with satellite technology, people are to antenna
On the basis of broadband, miniaturization, anti-destructive etc. require, to gain axis, when the aspect such as compatible with multiple networks proposes further
Higher requirement.Antenna has very important status in satellite navigation system and its terminal applies, it is carried out deeply
Research there is important reference value and Practical significance.
Conventional microstrip antenna is because having that section is low, small volume, lightweight, can conformal, easy of integration, feeding classification flexibly, just
In obtaining the advantages of linear polarization and circular polarisation, in the many such as mobile communication, satellite communication, guided missile remote measurement, Doppler radar fields
Obtain a wide range of applications.Wherein, the shape of paster antenna is one of key factor of impact antenna performance, and it directly affects
The indexs such as the bandwidth of antenna, frequency and gain.For the miniaturization of antenna, Hately M C and Kabbary F M, Stewart
B G has invented cross field antenna, and this is also earliest small size antenna, and hereafter people investigated and can adopt high-k, open
Seam[2], meander technology[3], load grounding probe[4], the technology such as pbg structure to be realizing the miniaturization of antenna.In micro-strip paster antenna
Design process in, due to multinomial technical specification be interknit, interactive, therefore the performance indications of antenna to be carried out
Consider, thus selecting the patch shape corresponding to actual needs.
Directional Antenna is to teach Yagi spark gap show time and the new Taro in space field by two Nihon Universities to invent in the twenties in last century,
Therefore also known as yagi aerial, yagi-uda or Yagi spark gap array antenna[5].Yagi aerial is a kind of end-fire multiple antenna battle array
Row, one single exciting unit of minimum inclusion and a single parasitic element.In view of Directional Antenna and microstrip antenna is prominent
Go out advantage, in order to mutually organically combine the two, domestic and international experts and scholars have done a lot of analyses and practical studies work
Make[6～9].
List of references：
[1]Hongwei S,Zhigang L,Feng P.Development of satellite navigation in
China [C]//Frequency Control Symposium,2007Joint with the 21st European
Frequency and Time Forum.IEEE International.IEEE,2007:297-300.
[2]Nguyen H T.Microstrip patch miniaturization by slots loading[C]//
2005IEEE Antennas and Propagation Society International Symposium.2005,1:215-
218.
[3]Luk K M,Lee K F.Small dual patch antenna[J].Electronics Letters,
1999,35(10):762-764.
[4]Waterhouse R B,Targonski S D,Kokotoff D M.Design and performance
of small printed antennas[J].Antennas and Propagation,IEEE Transactions on,
1998,46(11):1629-1633.
[5]DeJean G R,Thai T T,Nikolaou S,et al.Design and analysis of
microstrip Bi-Yagi and Quad-Yagi antenna arrays for WLAN applications[J]
.Antennas and Wireless Propagation Letters,IEEE,2007,6:244-248.
[6]Kraus John D,Marhefka Ronald J.Antennas for all applications[M]
.Upper Saddle River,NJ:McGraw Hill,2002.
[7]Song H J,Bialkowski M E,Kabacik P.Parameter study of a broadband
uniplanar quasi-Yagi antenna[C]//Microwaves,Radar and Wireless
Communications.2000.MIKON-2000.13th International Conference on.IEEE,2000,1:
166-169.
[8]Padhi S K,Bialkowski M E.Parametric study of a microstrip Yagi
antenna[C]//Microwave Conference,2000Asia-Pacific.IEEE,2000:715-718.
[9]Yihan D,Xiaoying Z.A novel microstrip Yagi antenna with tunable
radiation pattern and central frequency[C]//Intelligent Radio for Future
Personal Terminals(IMWS-IRFPT),2011IEEE MTT-S International Microwave
Workshop Series on.IEEE,2011:1-2.
Content of the invention
It is an object of the invention to provide the city wall shape slit of a kind of compatible with GPS and Beidou satellite navigation system working frequency range
Multistage couple planar guides many application laminated antennas into.
The present invention is provided with underlying substrate and top substrate layer, is covered with metal respectively in the upper surface of top substrate layer and underlying substrate
Layer forms square patch；Upper strata square patch adopts corner symmetrical triangle corner cut structure, on the square patch of upper strata
It is provided with the symmetrical city wall shape gap pair of paster geometric center, form city wall shape gap array, in the city wall shape with electromagnetic coupled
It is provided with coupled cavity between gap, in two groups of orthogonal city wall array joining places, be provided with the regulation and control coupled cavity of 4 45 degree of Angle Position；
Lower floor's square patch adopts corner symmetrical triangle corner cut structure, is respectively provided with one in the middle part of four sides of lower floor's square patch
Rectangular recess forms class fractal structure, is provided with four side peripheries of lower floor's square patch that paster is centrosymmetric to guide arm into；Under
Laminar substrate lower surface is covered with good conductor layer as earth plate, is provided with 3 feed connection, 3 feeds on underlying substrate lower surface
Joint is connected with 3 distributing points respectively.
The medium substrate that described top substrate layer and underlying substrate can be all 2～12 using relative dielectric constant, relatively dielectric
Constant preferably 4.4；The thickness of top substrate layer and underlying substrate can be 2～4mm, preferably 3mm；The length of side of described top substrate layer can be
30～36mm, preferably 34mm；The length of side of underlying substrate can be 70～80mm, preferably 72mm.
Length of side a1 of described upper strata square patch can be 24～28mm, preferably 26mm.Cut using corner symmetrical triangle
Corner corner cut length of side s1 of corner structure can be 3～7mm, preferably 5mm.
The long side L1 in described outer city wall shape gap can be 1～6mm, preferably 2.55mm, and minor face W1 can be 1～4mm, preferably
1.45mm, gap width b1 can be 0.3～0.6mm, preferably 0.55mm.The long side W2 in interior city wall shape gap can be 1～3mm, excellent
Select 2.30mm, minor face L2 can be 1～2mm, preferably 1.55mm.Gap width b1 can be 0.3～0.6mm, coupled cavity between gap
Radius can be 0.2～0.6mm, preferably 0.4mm, between coupled cavity apart from d1 can be 3～7mm, preferably 4.90mm, outer city wall shape seam
Gap and the side of upper strata square patch can be 1～6mm, preferably 2.677mm apart from d3, and interior city wall shape gap is square with upper strata
The side of paster apart from d4 can be 3～8mm, preferably 5.307mm.
The radius of described regulation and control coupled cavity can be 0.2～0.6mm, preferably 0.4mm, and the distance between regulation and control coupled cavity d2 can
For 1～3mm, preferably 1.846mm.
The radius of upper strata radiation patch dipper system terminal antenna S frequency range distributing point is 0.60mm ± 0.01mm, short circuit nail
Radius is 0.60mm ± 0.01mm.
Length of side a2 of lower floor's square patch can be 38～42mm, preferably 40.5mm.Using corner symmetrical triangle corner cut
Producing circular polarisation, corner corner cut length of side s2 can be 3～9mm, preferably 6mm to structure.Set at lower floor's square patch four sides midpoint
There is rectangular recess, form class fractal structure, the long side W4 of described rectangular recess can be 6～10mm, preferably 7.75mm, and minor face L4 can
For 1～3mm, preferably 2mm.Periphery can be 37～42mm with regard to the centrosymmetric length of side long side L5 guiding arm into of paster, preferably
39mm, minor face W5 can be 4～8mm, preferably 6mm.
The long side W3 that underlying substrate upper surface periphery guides arm city wall shape gap into can be 1～6mm, preferably 3.2mm, minor face L3
Can be 1～4mm, preferably 1.8mm, gap width b2 can be 0.3～1.0mm, preferably 0.7mm.Guide arm and square patch into
Can be 3～7mm, preferably 4.75mm apart from d5.
The radius of lower floor's radiation patch dipper system terminal antenna L frequency range distributing point can be 0.60mm ± 0.01mm, GPS system
System terminal antenna L1The radius of frequency range distributing point can be 0.60mm ± 0.01mm.
Earth plate is square, and the earth plate length of side can be 70～80mm；Preferably 72mm.It is deep that earth plate is more than to become skin for thickness
The silver layer of degree or layers of copper.
The present invention is covered with metal level formation square patch respectively in the upper surface of upper and lower base plate；Using corner symmetric triangular
Shape corner cut structure, introduces the city wall shape gap pair symmetrical with regard to paster geometric center thereon, forms city wall shape gap array,
It is provided with coupled cavity between two gaps in city wall shape gap pair, and in two groups of orthogonal city wall array joining places, 4 45 degree
Angle Position introduces multiple regulation and control coupled cavitys；And lower floor's square patch is also adopted by corner symmetrical triangle corner cut structure, and
In the middle part of its four side, each one rectangular recess of introducing forms class fractal structure, and periphery introduces with regard to the centrosymmetric modified model of paster
Guide arm into.In the square patch of upper strata, introduce city wall shape gap structure, effectively can extend current path, contribute to reality
The miniaturization of existing antenna；Coupled cavity is set between the city wall shape gap with electromagnetic coupled, city wall shape gap can be regulated and controled originally
Body periodically coupling is it is also possible to control the electromagnetic coupled between different city wall shape gaps；In two groups of orthogonal city wall array linkings
Multiple regulation and control coupled cavitys that 45 degree of Angle Position at place introduce, can regulate and control the vertical and horizontal component of radiation field, adjust antenna axis
Than and polarization；The introducing of short circuit nail not only facilitates realizes antenna miniaturization, and can improve the impedance matching of antenna.Under
In layer paster, corner symmetric triangular structure with broadband width and can produce circular polarisation.Drawing with regard to paster is centrosymmetric
Introduce city wall shape gap structure in arm, effective electrical length can be extended, improve the radiation characteristic of antenna and the increasing optimizing antenna
Benefit.Three feed structures are coupled it is achieved that three frequency characteristics using lamination, and there are three higher frequency isolations.The present invention relates to
Antenna can meet that Beidou antenna size is little, bandwidth is larger, return loss is relatively low, high gain, reception and transmission signal channel are done
Disturb little requirement, and the compatibility L of GPS system1Frequency range.
The design frequency range of the present invention can be three frequency ranges, respectively 1.55～1.605GHz, 1.57～1.66GHz and 2.45～
2.53GHz, covers GPS system L1Working frequency range and two working frequency range of triones navigation system L and S.
Compared with existing satellite antenna, the present invention has technique effect following outstanding：
Three feed structures are coupled it is achieved that Beidou satellite navigation system two-band and GPS system L using lamination1Frequency range
The compatibility feature of totally three frequency ranges, and there are three higher frequency isolations.Because upper strata square patch introduces city wall shape seam
Gap structure and lower floor's paster employ class fractal structure, make the size of antenna obtain a certain degree of reducing.Additionally, upper strata is square
Shape paster introduces multiple regulation and control coupled cavitys, controls the vertical and horizontal component of radiation field, adjustable antenna axle ratio and polarization.Under
Layer paster introduces modified model and guides arm into, and the radiation characteristic improving antenna and the gain optimizing antenna can reach big-dipper satellite
With the requirement to antenna for the satellite communication systems such as GPS navigation.
Brief description
Fig. 1 is the upper strata square patch structural representation of the embodiment of the present invention.
Fig. 2 is lower floor's square patch structural representation of the embodiment of the present invention.
Fig. 3 is the ground connection plate structure schematic diagram of the embodiment of the present invention.
Fig. 4 is the side structure schematic diagram of the embodiment of the present invention.
Fig. 5 is the return loss performance figure in 1.572GHz for the embodiment of the present invention.Abscissa in Fig. 5 represents frequency
Frequency (GHz), vertical coordinate represents return loss intensity The return loss of the Antenna (dB)；Coordinate
For rectangular coordinate.
Fig. 6 is the return loss performance figure in 1.616GHz for the embodiment of the present invention.Abscissa in Fig. 6 represents frequency
Frequency (GHz), vertical coordinate represents return loss intensity The return loss of the Antenna (dB)；Coordinate
For rectangular coordinate.
Fig. 7 is the return loss performance figure in 2.492GHz for the embodiment of the present invention.Abscissa in Fig. 7 represents frequency
Frequency (GHz), vertical coordinate represents return loss intensity The return loss of the Antenna (dB)；Coordinate
For rectangular coordinate.
Fig. 8 is the embodiment of the present invention in GPS navigation system L1The E face directional diagram of frequency range.Coordinate in Fig. 8 is polar coordinate.
Fig. 9 is the embodiment of the present invention in GPS navigation system L1The H face directional diagram of frequency range.Coordinate in Fig. 9 is polar coordinate.
Figure 10 is the E face directional diagram in triones navigation system L frequency range for the embodiment of the present invention.Coordinate in Figure 10 is sat for pole
Mark.
Figure 11 is the H face directional diagram in triones navigation system L frequency range for the embodiment of the present invention.Coordinate in Figure 11 is sat for pole
Mark.
Figure 12 is the E face directional diagram in triones navigation system S frequency range for the embodiment of the present invention.Coordinate in Figure 12 is sat for pole
Mark.
Figure 13 is the H face directional diagram in triones navigation system S frequency range for the embodiment of the present invention.Coordinate in Figure 13 is sat for pole
Mark.
Specific embodiment
The present invention will be further described with accompanying drawing with reference to embodiments.
With reference to Fig. 1～4, the square medium substrate that in figure labelling 16 and 17 is 4.4 for dielectric constant, labelling 16 substrate side
A length of 34.0mm ± 0.1mm, the labelling 17 substrate length of side is 72.0mm ± 0.1mm.Upper in the upper surface of labelling 16 and labelling 17
Lower two sides is all covered with layers of copper.The upper surface of labelling 16 employs city wall shape gap array loading technique, and its basic configuration is square
Shape.Square patch (Fig. 1 labelling 1) adopts corner symmetrical triangle corner cut structure (Fig. 1 labelling 2), corresponding triangular right-angle
Length of side s1 is 5.0mm ± 0.1mm.The city wall shape gap array symmetrical with regard to paster geometric center is loaded on primary radiation paster 1
(Fig. 1 labelling 3 and 4), in each pair city wall shape gap, the long side L1 in outer city wall shape gap is 2.55mm ± 0.1mm, and minor face W1 is
1.45mm ± 0.1mm, is 2.677mm ± 0.1mm apart from square patch 1 side apart from d3.The long side W2 in interior city wall shape gap
For 2.30mm ± 0.1mm, minor face L2 is 1.55mm ± 0.1mm, apart from square patch 1 side apart from d4 for 5.307mm ±
0.1mm, gap width b1 is 0.55mm ± 0.1mm.It is provided with coupled cavity (Fig. 1 labelling 5) between gap, coupled cavity radius is
0.4mm ± 0.1mm, between coupled cavity apart from d1 be 4.90mm ± 0.1mm.At two groups of orthogonal 45 degree of angles of city wall array joining place
Position introduces multiple regulation and control coupled cavity (Fig. 1 labelling 6), and regulation and control coupled cavity radius is 0.4mm ± 0.1mm, between chamber apart from d2 is
1.846mm±0.1mm.There is the square patch (labelling 9 in Fig. 2) that the length of side is 40.5mm ± 0.1mm in the upper surface of labelling 17,
Using corner symmetrical triangle corner cut structure (labelling 10 in Fig. 2), corresponding triangular right-angle length of side s2 is 6.0mm ± 0.1mm.
In the middle part of paster four side introduce rectangular recess (Fig. 2 labelling 11) formed class fractal structure, this groove long side W4 be 7.75mm ±
0.1mm, minor face L4 are 2.0mm ± 0.1mm.What paster periphery introduced guides arm (Fig. 2 mark into regard to the centrosymmetric modified model of paster
Note 12) length of side L5, W5 be respectively 39.0mm ± 0.1mm, between 6.0mm ± 0.1mm, and paster apart from d5 for 4.75mm ±
0.1mm.Modified model is guided into and is adopted city wall shape gap structure (Fig. 2 labelling 13) in arm, and long side W3 is 3.2mm ± 0.1mm, minor face L3
For 1.8mm ± 0.1mm, gap width b2 is 0.7mm ± 0.1mm.
In figure labelling 7,14 and 15 is coaxial feed, and radius be all the hollow cylinder of 0.6mm ± 0.1mm, wherein 7 through 9,
16th, 17 pairs of pasters 1 feed, highly for 6.0mm ± 0.3mm；And 14,15 is to feed through 17 pairs of pasters 9, it is highly
3.0mm ± 0.2mm, in figure labelling 8 is the short circuit nail through top substrate layer 16.Presented in the form of coaxial line offset-fed in the present invention
Electricity, this feed form makes the S of antenna11Lower, gain improves, and wherein the inner core of coaxial line is connected with paster by feed-through,
And the outer core of coaxial line is connected with the reflecting plate of dielectric-slab lower surface.
Referring to Fig. 5～7, there it can be seen that the working frequency range of inventive antenna is：GPS navigation system L1Frequency range
1.55GHz～1.605GHz, triones navigation system L frequency range 1.57GHz～1.66GHz and triones navigation system S frequency range
2.45GHz～2.53GHz.Return loss (S in these three working frequency range internal antennas11) all below -10dB, in GPS system
Minimum echo in L1 wave band is lost as -25.68dB, the minimum echo in triones navigation system L frequency range be lost for -
27.869dB, the minimum echo in triones navigation system S frequency range is lost as -25.69dB.Inventive antenna is in GPS system L1
The absolute bandwidth of frequency range and relative bandwidth are respectively：55MHz and 3.49%；Triones navigation system L frequency range absolute bandwidth with
Relative bandwidth is respectively：90MHz and 5.57%；It is respectively with relative bandwidth in the absolute bandwidth of triones navigation system S frequency range：
80MHz and 3.21%, overall performance is better than general patch microstrip antenna, and can be compatible with GPS navigation system and north
The working frequency range of bucket navigation system.
Referring to Fig. 8～13, wherein Fig. 8 and Fig. 9 is GPS system L1The E face directional diagram of band operation frequency 1.572GHz and H
Face directional diagram, Figure 10 and Figure 11 is E face directional diagram and the H face directional diagram of triones navigation system L band operation frequency 1.616GHz,
Figure 12 and Figure 13 is E face directional diagram and the H face directional diagram of triones navigation system S band operation frequency 2.492GHz.Result shows,
Patch microstrip antenna in the present invention has directional radiation properties, can meet the requirement of satellite communication system.
Referring to table 1, table 1 gives the manufacture mismachining tolerance of the present invention impact situation to antenna performance.
Table 1
Note：In table, data certain redundancy, has certain relatedness, provide is equalization characteristic, can root between each parameter
Complete particular design according to needing optimum structural parameter.
The impact to each parameter of antenna is little in allowed limits for the manufacture mismachining tolerance of the present invention.For example, paster chi
The spacing on very little, gap width, gap and each side, the size of medium substrate, dielectric-slab copper-clad thickness, feed position etc. are by mistake
Difference control within 2%, and the relative dielectric constant error control of ceramic dielectric substrate within 5% when, the items of antenna
Parameters variation is little.
Claims (18)
1. the multistage couple planar of city wall shape slit guides many application laminated antennas into it is characterised in that being provided with underlying substrate and upper strata base
Plate, is covered with metal level respectively in the upper surface of top substrate layer and underlying substrate and forms square patch；Upper strata square patch is adopted
With corner symmetrical triangle corner cut structure, the inside and outside city wall symmetrical with regard to paster geometric center is provided with the square patch of upper strata
Shape gap pair, forms city wall shape gap array, is provided with coupled cavity, at two groups just between the city wall shape gap with electromagnetic coupled
The city wall array joining place handed over, is provided with the regulation and control coupled cavity of 4 45 degree of Angle Position；Lower floor's square patch adopts corner symmetrical three
Angular corner cut structure, is respectively provided with rectangular recess in the middle part of four sides of lower floor's square patch and forms class fractal structure, under
Four side peripheries of layer square patch are provided with that paster is centrosymmetric to guide arm into；Underlying substrate lower surface is covered with good conductor layer conduct
Earth plate, is provided with 3 coaxial feed joints, 3 coaxial feed joints are respectively with 3 distributing points even on underlying substrate lower surface
Connect.
2. the multistage couple planar of city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that described
The medium substrate that top substrate layer and underlying substrate are all 2～12 using relative dielectric constant.
3. the multistage couple planar of city wall shape slit as claimed in claim 2 guides many application laminated antennas into it is characterised in that described
Relative dielectric constant is 4.4.
4. the multistage couple planar of city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that upper strata
The thickness of substrate and underlying substrate is 2～4mm；The length of side of described top substrate layer is 30～36mm；The length of side of underlying substrate is 70
～80mm.
5. the multistage couple planar of city wall shape slit as claimed in claim 4 guides many application laminated antennas into it is characterised in that upper strata
The thickness of substrate and underlying substrate is 3mm；The length of side of described top substrate layer is 34mm；The length of side of underlying substrate is 72mm.
6. the multistage couple planar of city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that described
Length of side a1 of upper strata square patch is 24～28mm；Corner corner cut length of side s1 using corner symmetrical triangle corner cut structure is
3～7mm.
7. the multistage couple planar of city wall shape slit as claimed in claim 6 guides many application laminated antennas into it is characterised in that described
Length of side a1 of upper strata square patch is 26mm；Corner corner cut length of side s1 using corner symmetrical triangle corner cut structure is 5mm.
8. the multistage couple planar of city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that described
The long side L1 in outer city wall shape gap is 1～6mm, and minor face W1 is 1～4mm, and gap width b1 is 0.3～0.6mm；Interior city wall shape seam
The long side W2 of gap is 1～3mm, and minor face L2 is 1～2mm；Gap width b1 is 0.3～0.6mm, and between gap, the radius of coupled cavity is
0.2～0.6mm, between coupled cavity apart from d1 be 3～7mm, the side of outer city wall shape gap and upper strata square patch apart from d3
For 1～6mm, interior city wall shape gap and the side of upper strata square patch are 3～8mm apart from d4.
9. the multistage couple planar of city wall shape slit as claimed in claim 8 guides many application laminated antennas into it is characterised in that described
The long side L1 in outer city wall shape gap is 2.55mm, and minor face W1 is 1.45mm, and gap width b1 is 0.55mm；Interior city wall shape gap
Long side W2 be 2.30mm, minor face L2 be 1.55mm；Between gap, the radius of coupled cavity is 0.4mm, between coupled cavity apart from d1 is
4.90mm, outer city wall shape gap and the side of upper strata square patch are 2.677mm apart from d3, and interior city wall shape gap is with upper strata just
The side of square patch apart from d4 be 5.307mm.
10. the multistage couple planar of city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that described
The radius of regulation and control coupled cavity is 0.2～0.6mm, and the distance between regulation and control coupled cavity d2 is 1～3mm.
The multistage couple planar of 11. city wall shape slit as claimed in claim 10 guides many application laminated antennas into it is characterised in that institute
The radius stating regulation and control coupled cavity is 0.4mm, and the distance between regulation and control coupled cavity d2 is 1.846mm.
The multistage couple planar of 12. city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that upper strata
The radius of radiation patch dipper system terminal antenna S frequency range distributing point is 0.60mm ± 0.01mm, and short circuit nail radius is 0.60mm
±0.01mm.
The multistage couple planar of 13. city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that lower floor
Length of side a2 of square patch is 38～42mm；Circular polarisation, corner corner cut are produced using corner symmetrical triangle corner cut structure
Length of side s2 is 3～9mm；It is provided with rectangular recess at lower floor's square patch four sides midpoint, forms class fractal structure, described rectangle is recessed
The long side W4 of groove is 6～10mm, and minor face L4 is 1～3mm；Periphery with regard to paster centrosymmetric guide arm into the length of side long side L5 be
37～42mm, minor face W5 are 4～8mm.
The multistage couple planar of 14. city wall shape slit as claimed in claim 13 guide many application laminated antennas into it is characterised in that under
Length of side a2 of layer square patch is 40.5mm；Corner corner cut length of side s2 is 6mm；The long side W4 of described rectangular recess is
7.75mm, minor face L4 are 2mm；Periphery is 39mm with regard to the centrosymmetric length of side long side L5 guiding arm into of paster, and minor face W5 is
6mm.
The multistage couple planar of 15. city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that lower floor
The long side W3 that upper surface of base plate periphery guides arm city wall shape gap into is 1～6mm, and minor face L3 is 1～4mm, and gap width b2 is 0.3
～1.0mm.
The multistage couple planar of 16. city wall shape slit as claimed in claim 15 guide many application laminated antennas into it is characterised in that under
The long side W3 that laminar substrate upper surface periphery guides arm city wall shape gap into is 3.2mm, and minor face L3 is 1.8mm, and gap width b2 is
0.7mm.
The multistage couple planar of 17. city wall shape slit as claimed in claim 1 guides many application laminated antennas into it is characterised in that guiding into
Arm and square patch are 3～7mm apart from d5；The radius of lower floor's radiation patch dipper system terminal antenna L frequency range distributing point
For 0.60mm ± 0.01mm, GPS system terminal antenna L1The radius of frequency range distributing point is 0.60mm ± 0.01mm；Earth plate is just
Square, the earth plate length of side is 70～80mm；Earth plate is more than silver layer or the layers of copper of skin depth for thickness.
The multistage couple planar of 18. city wall shape slit as claimed in claim 17 guides many application laminated antennas into it is characterised in that drawing
It is 4.75mm to arm and square patch apart from d5；The earth plate length of side is 72mm.
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| CN104882672A (en) * | 2015-05-28 | 2015-09-02 | 电子科技大学 | Wide bandwidth wave beam circular polarization Yagi-microstrip antenna |
| JP6992047B2 (en) | 2017-03-08 | 2022-01-13 | 株式会社ヨコオ | Patch antenna with slot |
| CN107909136A (en) * | 2017-11-14 | 2018-04-13 | 深圳市盛路物联通讯技术有限公司 | Electronic tag and radio-frequency recognition system in radio-frequency recognition system |
| CN109904604B (en) * | 2019-02-20 | 2020-09-08 | 湖南大学 | Antenna |
| CN113555682B (en) * | 2021-07-01 | 2022-08-12 | 北京航空航天大学 | Miniaturized three-frequency-band microstrip antenna |
| CN117080740B (en) * | 2023-09-20 | 2024-05-28 | 湖南省英洛康科技有限公司 | Miniaturized airborne communication antenna, application method thereof and unmanned aerial vehicle |
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