CN110311224A - Small spacing micro-strip antenna array - Google Patents
Small spacing micro-strip antenna array Download PDFInfo
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- CN110311224A CN110311224A CN201910669538.4A CN201910669538A CN110311224A CN 110311224 A CN110311224 A CN 110311224A CN 201910669538 A CN201910669538 A CN 201910669538A CN 110311224 A CN110311224 A CN 110311224A
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- China
- Prior art keywords
- antenna array
- medium substrate
- small spacing
- microstrip
- strip antenna
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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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention discloses a kind of small spacing micro-strip antenna array, wherein the small spacing micro-strip antenna array includes: medium substrate, is had back to setting first surface and second surface；First microstrip antenna and the second microstrip antenna, the first microstrip antenna and the second microstrip antenna are set to the first surface of medium substrate, and are arranged along first direction relative spacing；And resonance decouples unit, resonance decoupling unit includes the split ring resonator formed by microstrip line, and split ring resonator is set to the first surface of medium substrate, and between the first microstrip antenna and the second microstrip antenna.Present invention inhibits the couplings of small spacing microstrip antenna.
Description
Technical field
The present invention relates to antenna coupling technique field, in particular to a kind of small spacing micro-strip antenna array.
Background technique
R-T unit of the antenna as radio signal, has become component part indispensable in wireless system, answers
Used in the various fields such as mobile communication, radio and television, radar detection, satellite navigation and deep space exploration.In many practical applications
In, antenna usually appears in transmitting/receiving wireless system (such as radio-frequency recognition system, continuous wave detection system), Huo Zhezuo in couples
It is appeared in multielement array (such as adaptive array, multi-input/output antenna battle array and phased array) for array element, or
(such as laptop, mobile phone) is appeared in multifunction wireless terminal device as functional unit.In these cases, it closes on
It is inevitably coupled between antenna element, and this coupling is mutual.
Mutual coupling of antenna should not be underestimated to various wireless communications and the influence of detection system, mutual coupling can deteriorate receive-transmit isolation,
Power system capacity is reduced, scanning blind spot is introduced and influences the design accuracy of system.In continuous wave detection system, between dual-mode antenna
The deterioration of interchannel isolation caused by mutual coupling causes the reduction of signal-to-noise ratio, directly affects detection range, current decoupling
The spacing for increasing antenna element in method will cause oversized antenna platform, complex geometry and may result in battle array
The overall performance of column declines, some also need complicated feeding network design, increases the difficulty of design.
Summary of the invention
The main object of the present invention is to propose a kind of small spacing micro-strip antenna array, it is intended to inhibit small spacing microstrip antenna
Coupling.
To achieve the above object, small spacing micro-strip antenna array proposed by the present invention, the small spacing micro-strip antenna array
Include:
Medium substrate has back to setting first surface and second surface；
Two microstrip antennas, two microstrip antennas are set to the first surface of the medium substrate, and opposite along first direction
Interval setting；And
Resonance decouples unit, and the resonance decoupling unit includes the split ring resonator formed by microstrip line, and the opening is humorous
Vibration is located on the first surface of the medium substrate, and between two microstrip antennas.
Optionally, the microstrip line is in "U" shaped.
Optionally, the quantity of the split ring resonator is two, and relative spacing is arranged in a second direction, is opened described in two
The opening of mouth resonant ring is opposite or opening direction is consistent, and the second direction is vertical with first direction.
Optionally, two microstrip antennas are symmetrical arranged by center line of the split ring resonator.
Optionally, the second surface of the medium substrate is common ground plate.
Optionally, the thickness range of the medium substrate is 0.1mm-3mm.
Optionally, each microstrip antenna includes the main part with open slot, the feed outside the open slot
Point and the current feed department for extending out to outside from the open slot and being connect with the feeding point.
Optionally, the main part includes base portion and the side stretching out and be oppositely arranged from base portion both ends, two sides
It is enclosed the open slot with the base portion, the current feed department is arranged in bar shaped, one end of the current feed department and the base portion
Connection, the other end of the current feed department are connect with the feeding point, and the feeding point is located at immediately ahead of the opening of the open slot.
Optionally, the feeding point is the metallization VIA on the medium substrate.
Optionally, the small spacing micro-strip antenna array further includes four metallized semi-pores, four metallized semi-pores
It is respectively arranged on the side of the medium substrate.
Technical solution of the present invention includes that medium substrate, two microstrip antennas and resonance decouple by small spacing micro-strip antenna array
Unit, medium substrate have back to setting first surface and second surface；Two microstrip antennas are set to the first of the medium substrate
Surface, and be arranged along first direction relative spacing；The resonance decoupling unit includes the split ring resonator formed by microstrip line, institute
The first surface that split ring resonator is set to the medium substrate is stated, and between two microstrip antennas.So that resonance decouples unit
The split ring resonator for having microstrip line to be formed can be constituted between two microstrip antennas, split ring resonator itself is equivalent to an electricity
The opening setting of sense, split ring resonator can be equivalent to a capacitor, can be formed by LC filter by split ring resonator with this
Wave device can form a kind of indirect coupled field between microstrip antenna, so that cancel out each other with the original coupled field of microstrip antenna, from
And realize the inhibition of mutual coupling, it that is to say and generate a kind of INDIRECT COUPLING field on the path that two microstrip antennas carry out electromagnetic propagation,
In Electromagnetic Wave Propagation, to counteract the coupling that original two microstrip antenna generates during electromagnetic propagation.The technology of the present invention side
Case inhibits the mutual coupling of small spacing microstrip antenna.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of small one embodiment of spacing micro-strip antenna array of the present invention；
Fig. 2 is that the isolation S21 parameter before and after resonance decoupling unit is added in the small spacing micro-strip antenna array of the present invention is bent
Line schematic diagram；
Fig. 3 is the structural schematic diagram of small two split ring resonator of spacing micro-strip antenna array, one embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another embodiment of small two split ring resonator of spacing micro-strip antenna array of the invention；
Fig. 5 is the side structure schematic diagram of small one embodiment of spacing micro-strip antenna array of the present invention.
Fig. 6 is the structural schematic diagram of one embodiment of microstrip antenna in the small spacing micro-strip antenna array of the present invention；
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Medium substrate | 220 | Feeding point |
| 200 | Microstrip antenna | 230 | Current feed department |
| 300 | Resonance decouples unit | 211 | Base portion |
| 210 | Main part | 212 | Side |
| 310 | Split ring resonator |
The realization of the object of the invention, functional characteristics and it can put that the embodiments will be further described with reference to the accompanying drawings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of small spacing micro-strip antenna array, applies in mobile communication, radio and television, radar detection, defends
The various fields such as star navigation and deep space exploration.In practical applications, antenna usually appears in transmitting/receiving wireless system in couples
(such as radio-frequency recognition system, continuous wave detection system etc.), or appear in multielement array as array element (such as it is adaptive
Antenna array, multi-input/output antenna battle array and phased array etc.), or appear in multifunction wireless terminal as functional unit and set
In standby (such as laptop, mobile phone).In above-mentioned transmitting/receiving wireless system, multielement array or wireless terminal device,
It is inevitably coupled between antenna element adjacent to each other, and this coupling is mutual.
Mutual coupling can deteriorate the receive-transmit isolation of antenna, reduce power system capacity, introduces scanning blind spot and influence setting for system
Count precision.In continuous wave detection system, the deterioration of interchannel isolation caused by mutual coupling causes signal-to-noise ratio between dual-mode antenna
Reduction, directly affect detection range.The current most common decoupling method is exactly the spacing between increasing antenna element, however this
Kind method will cause the oversized of aerial array, and will lead to the overall performance decline of aerial array, such as introduce graing lobe.Other
Decoupling method have and increase the structure for preventing coupling between antenna or increase feeding network, however all there is structure in these methods
It is complex-shaped, need large scale space, cause the use condition of aerial array limited, some also need complicated feeding network to set
Meter, increases the difficulty of design.
To solve the above-mentioned problems, in an embodiment of the present invention, reference is as shown in Figure 1, be based on field in the prior art
Decoupling method is offseted, which includes:
Medium substrate 100 has back to setting first surface and second surface；
Two microstrip antennas 200, two microstrip antennas 200 are set to the first surface of the medium substrate 100, and along first
The setting of direction relative spacing；And
Resonance decouples unit 300, and the resonance decoupling unit 300 includes the split ring resonator 310 formed by microstrip line, institute
The first surface that split ring resonator 310 is set to the medium substrate 100 is stated, and between two microstrip antennas 200.
In the present embodiment, medium substrate 100 is the carrier of two microstrip antennas 200 and resonance decoupling unit 300, medium substrate
It is primary raw material through high-pressure molding, high temperature firing that 100 material, which can be by high-purity alpha-alumina (alumina), then is cut, thrown
Made of light, ceramic substrate is the basic material for manufacturing thick film, thin film circuit.Copper-clad laminate (abbreviation metal clad board) is manufacture
The baseplate material of printed circuit board, it is able to achieve the electrical connection between them or electricity in addition to being used as and supporting various components
Insulation.
Medium substrate 100 is also possible to metal substrate, refers to compounded by sheet metal, insulating medium layer and copper foil
Metal-based copper-clad plate.Applied to electronic component and integrated circuit bearing material and heat sink etc., in power electronic device (example
Such as rectifying tube, thyristor, power module, laser diode, microwave tube), microelectronic component (such as computer CPU, DSP core
Piece) neutralize microwave communication, automatic control, power supply conversion, the fields such as aerospace play an important role.
Microstrip antenna 200 is the surface elemant of a rectangle, and first surface is the metal patch of certain shapes, second surface
Thin metal layer is enclosed as earth plate, the antenna constituted using microstrip line or coaxial probe to patch, microstrip antenna 200 is whole
The first surface of medium substrate 100 is arranged in body, is first surface phase of the surface with medium substrate 100 of microstrip antenna 200
Contact.It is understood that second surface is under medium substrate 100 when first surface is the upper surface of medium substrate 100
Surface；When first surface is the lower surface of medium substrate 100, second surface is the upper surface of medium substrate 100.
It should be noted that being provided with two microstrip antennas 200 on medium substrate 100, two microstrip antennas 200 are set to and are given an account of
The first surface of matter substrate 100, and be arranged along first direction relative spacing, to inhibit the degree of coupling of 200 array of microstrip antenna.
In above-described embodiment, the length and width of medium substrate 100 can be different, four edge lengths of medium substrate 100
Can be consistent, form the consistent special rectangle of four edge lengths.It is understood that first direction can be medium substrate
100 length direction is also possible to the width direction of medium substrate 100.
Resonance in above-described embodiment decouples unit 300, it is to be understood that decouples unit 300 by the resonance and wraps
The split ring resonator 310 formed by microstrip line is included, this split ring resonator 310 is equivalent to an inductance in itself, and resonant ring opening is set
A capacitor can be equivalent to by setting, and the cooperation of inductance and capacitor can be formed by LC filter, can be between microstrip antenna 200
A kind of indirect coupled field is formed, so that cancel out each other with the original coupled field of microstrip antenna 200, thus realize the inhibition of mutual coupling,
It that is to say and generate a kind of INDIRECT COUPLING field on two microstrip antennas, 200 path, it is micro- to offset original two in Electromagnetic Wave Propagation
With the coupled field that antenna 200 generates during Electromagnetic Wave Propagation, to inhibit the mutual coupling between microstrip antenna 200, improve micro-
With the isolation between antenna 200.
Split ring resonator 310 (Split-ring resonator) mentioned above is a kind of magnetic Meta Materials.It is a pair of same
The split ring resonator 310 of the sub-wavelength size of the heart, can effectively change magnetic conductivity.Specifically, a metal ring with its
In vertical variation magnetic field, induction field, but and non-resonant system can be generated.Reinforce magnetic response to generate resonance,
We need to introduce capacitor.Because inductance and capacitor could form resonance circuit together (metal ring can be considered inductance).Thus
A notch is added in we on each becket, and the open metal ring formed in this way is formed capacitor, and charge can be at both ends
Accumulation.This split ring resonator 310 is just analogous to resonance circuit of the band there are two capacitor in this way.Use two opening resonance
Ring 310 be because the charge of single split ring resonator 310 accumulation can generate electric dipole moment and slacken the electromagnetism polar moment that we want,
Electric dipole moment caused by the oppositely positioned split ring resonator 310 of two openings can offset each other.
In the present embodiment, resonance is decoupled in unit 300 by the way that half is arranged between two microstrip antennas 200 spaced apart
Cricoid microstrip line.The interval setting of two microstrip antennas 200 herein is equivalent to a capacitor, in the process of electromagnetic transmission
In, the space between two microstrip antennas 200 just will form a coupled field；In the microstrip line of this coupled field setting semicircular, i.e.,
It is comparable to be provided with split ring resonator 310, split ring resonator 310 is equivalent to a LC filter in itself, can form one kind
Indirect coupled field, the coupled field generated with two microstrip antennas 200 are cancelled out each other, thus between reaching inhibition microstrip antenna 200 mutually
Coupling.
It should be noted that the split ring resonator 310 being arranged between 100 liang of microstrip antennas 200 of medium substrate can be 1
A, 2,5 etc., according to the actual situation under the setting of 100 size of medium substrate, herein without limitation.It is understood that one
As in the case of mostly use 1 split ring resonator 310 to be arranged between 100 liang of microstrip antennas 200 of medium substrate, reduced with this micro-
Volume with aerial array, while also reducing the cost of micro-strip antenna array.
In the present embodiment, after being provided with this resonance decoupling unit 300, so that improving the small spacing microstrip antenna
Isolation between 200 arrays, reference is as shown in Fig. 2, be 200 gusts of microstrip antenna before and after resonance decoupling unit 300 is added
Column isolation S21 parameter curve.
Technical solution of the present invention includes medium substrate 100, two microstrip antennas 200 by small 200 array of spacing microstrip antenna
Unit 300 is decoupled with resonance, medium substrate 100 has back to setting first surface and second surface；Two microstrip antennas 200 are set to
The first surface of the medium substrate 100, and be arranged along first direction relative spacing；Resonance decoupling unit 300 include by
The split ring resonator 310 that microstrip line is formed, the split ring resonator 310 are set to the first surface of the medium substrate 100, and position
Between two microstrip antennas 200.Resonance decoupling unit 300 is constituted between two microstrip antennas 200 has micro-strip linear
At split ring resonator 310, split ring resonator 310 is equivalent to an inductance in itself, and the opening setting of split ring resonator 310 can
To be equivalent to a capacitor, LC filter can be formed by by split ring resonator 310 with this, it can be between microstrip antenna 200
A kind of indirect coupled field is formed, so that cancel out each other with the original coupled field of microstrip antenna 200, thus realize the inhibition of mutual coupling,
It that is to say and generate a kind of INDIRECT COUPLING field on the path that two microstrip antennas 200 carry out Electromagnetic Wave Propagation, in Electromagnetic Wave Propagation
When, to offset the coupling that original two microstrip antenna 200 generates during electromagnetic propagation.Technical solution of the present invention inhibits small
Mutual coupling away from microstrip antenna 200.
In one embodiment, reference is as shown in Figure 1, the microstrip line is in "U" shaped.It is to be arranged to by microstrip line
"U" shaped structure allows split ring resonator 310 to form one between two microstrip antennas 200 to form split ring resonator 310
The indirect coupled field of kind goes the mutual coupling for offsetting two microstrip antennas 200 itself, inhibits small 200 array of spacing microstrip antenna with this
Coupling.
In above-described embodiment, referring to such as Fig. 3 or as shown in figure 4, the quantity of the split ring resonator 310 is two, and edge
The opening of the arrangement of second direction relative spacing, two split ring resonators 310 is opposite or opening direction is consistent, and described second
Direction is vertical with first direction.
In the present embodiment, in the microstrip line that "U" shaped is arranged, with the quantity of the split ring resonator 310 of formation for two,
The opening direction of two split ring resonators 310 in Fig. 3 is consistent, and is intervally arranged in a second direction；Or two in such as Fig. 4
The opening direction of a split ring resonator 310 is opposite, and is intervally arranged in a second direction.It is understood that second direction can be with
It is the width direction of medium substrate 100, is also possible to the length direction of medium substrate 100.Further, when second direction is to be situated between
When the width direction of matter substrate 100, the first direction in above-described embodiment is the length direction of medium substrate 100；When second
When direction is the length direction of medium substrate 100, the first direction in above-described embodiment is the width side of medium substrate 100
To.
It should be noted that two split ring resonators 310 are intervally arranged in a second direction, it is to be arranged along straight line interval
Cloth, and rectilinear direction is parallel with second direction.It that is to say the split ring resonator 310 and microstrip antenna 200 being linearly intervally arranged
It is arranged in parallel, with this split ring resonator 310 can be set in lesser space, two micro-strip days on medium substrate 100
Space length between line 200 can be smaller, then 200 array of entire microstrip antenna can be made smaller, reduces micro-strip day
The volume of 200 array of line.
It is understood that the specific space length of two microstrip antennas 200 can be according to the ruler of split ring resonator 310 herein
It is very little to be in the light of actual conditions arranged.
In above-described embodiment, two microstrip antennas 200 are symmetrical arranged with the split ring resonator 310 for center line, can
With understanding, two microstrip antennas 200 are symmetrical arranged, and the arrangement rule on medium substrate 100 can reduce micro-
Area occupied with antenna 200 just reduces the volume of 200 array of microstrip antenna with this.
In above-described embodiment, the second surface of the medium substrate 100 is common ground plate.It is understood that this is public
The connection with two microstrip antennas 200 may be implemented in earth plate altogether, the ground connection of resonance decoupling unit 300 also may be implemented, so that humorous
Vibration decoupling unit 300 can form split ring resonator 310, between being formed on the Electromagnetic Wave Propagation path between microstrip antenna 200
Coupled field is connect, the mutual coupling between microstrip antenna 200 is inhibited.
In the present embodiment, the medium substrate 100 can use FR4 double face copper, and FR4 double face copper refers to glass
Fibrous epoxy resin copper-clad plate, dielectric constant are generally 4.2-4.7；Medium substrate 100 can also use other ceramic substrates, gold
Belong to substrate etc., herein without limitation.Such as using dielectric constant be 4.4 FR4 double face copper, two microstrip antennas can be made
200 and resonance decoupling unit 300 and medium substrate 100 have preferable switching performance, simultaneously because FR4 double face copper cost compared with
It is low, also reduce the cost of 200 array of microstrip antenna.
In the present embodiment, it is the thickness of medium substrate 100 that the thickness range of the medium substrate 100, which is 0.1mm-3mm,
It can be 0.5mm, 1mm, 1.5mm etc., herein without limitation.The length and width of medium substrate 100 can be according to application scenarios
Specific setting, if the length and width of medium substrate 100 is the length of 0.4 free space wavelength or medium substrate 100
For 0.4 free space wavelength, width is 0.3 free space wavelength, herein without limitation.
Free space wavelength hereinWherein C is the light velocity, f0For working frequency；
In one embodiment, the length of resonance decoupling unit 300 can take 0.5 guide wavelength, and width takes 0.125 to lead
Wave wavelength.It is understood that the parameter of medium substrate 100, length, the width value that resonance decouples unit 300 can roots
It is specifically chosen according to 200 array of microstrip antenna in actual application environment, herein with no restrictions.
Guide wavelength in above-described embodiment also known as leads interior wave wavelength, is that two sidewalls are anti-back and forth in the waveguide for working electromagnet wave
It penetrates, forms the periodic distribution in electromagnetic field field strength ducting direction, the specific calculation of guide wavelength is as follows:
Guide wavelengthWherein εeFor the effective dielectric constant of medium substrate 100, λ0For free space wavelength；
The effective dielectric constant of medium substrate 100Wherein εrFor medium substrate
100 relative dielectric constant, h are the thickness of medium substrate 100, and w is the width that resonance decouples unit 300, medium substrate 100
The width w of thickness h and resonance decoupling unit 300, referring to as shown in Figure 5.
In above-described embodiment, free space refers to without any decaying, without any blocking, the communication space without any multipath.
Ideal radio propagation conditions are not present, it is considered that as long as the atmosphere of hemisphere is isotropic uniform matchmaker
Matter, relative dielectric constant ε and relative permeability μ are equal to 1, do not have barrier obstruction on propagation path, reach receiving antenna
Background return field strength also can be ignored, in this case, the circulation way of electric wave be regarded as from
By spatial.Usual satellite communication and microwave communication are considered as the communication in ideal communication channel.That is free space wavelength
Refer to the wavelength propagated in free space.
In above-described embodiment, reference is as shown in fig. 6, each microstrip antenna 200 includes the main part with open slot
210, the feeding point 220 outside the open slot and it is described extend out to from the open slot outside and with the feeding point
The current feed department 230 of 220 connections.
In the present embodiment, the main part 210 includes base portion 211 and the side stretched out and be oppositely arranged from 211 both ends of base portion
Portion 212, two sides 212 are enclosed the open slot with the base portion 211, and the current feed department 230 is arranged in bar shaped, institute
The one end for stating current feed department 230 is connect with the base portion 211, and the other end of the current feed department 230 is connect with the feeding point 220,
The feeding point 220 is located at immediately ahead of the opening of the open slot.
It should be noted that being arranged by the above-mentioned current feed department 230 to the connection of each microstrip antenna 200, reached with this
Two base portions 211 and current feed department 230 of 200 main part 210 of microstrip antenna are spaced apart, form the gap of two flutings, with
This is arranged by the length to current feed department 230, realizes the impedance matching for adjusting 200 array of microstrip antenna.
In the present embodiment, the feeding point 220 is the metallization VIA on the medium substrate 100, feeding point 220
Position can be set according to the length-flexible of current feed department 230, to realize that the end of current feed department 230 is connect with feeding point 220.It can
With understanding, the end of 200 current feed department 230 of microstrip antenna is arranged in feeding point 220 herein, realizes in limited area
Under give element more placing space.
In above-described embodiment, the feeding classification of 200 array of microstrip antenna is that coaxial feed is combined with feed microstrip line, is presented
Electricity is the electromagnetic wave signal to microstrip antenna 200 plus certain frequency, is 200 array of microstrip antenna work ISM band
5.8GHz, it is necessary to microstrip antenna 200 plus the electromagnetic wave signal of 5.8GHz, herein without limitation.
When coaxial feed and feed microstrip line, coaxial probe connects the radiation body portion of microstrip antenna 200, and coaxially outer is led
Body is typically grounded, since two microstrip antennas 200 are the first surfaces that medium substrate 100 is arranged in, coaxial probe here
Connect two microstrip antennas 200, the second surface of coaxial outer conductor connection medium substrate 100.Reduce complicated feed with this
Network design reduces design difficulty.
In one embodiment, small 200 array of spacing microstrip antenna further includes four metallized semi-pores, four gold
Categoryization half bore is respectively arranged on the side of the medium substrate 100.
It is understood that being respectively provided with a metallized semi-pore on one side in the every of medium substrate 100, facilitated with this described micro-
The printing-circuit board module being related to 200 array of antenna with other needs is welded.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of small spacing micro-strip antenna array, which is characterized in that the small spacing micro-strip antenna array includes:
Medium substrate has back to setting first surface and second surface；
Two microstrip antennas, two microstrip antennas are set to the first surface of the medium substrate, and along first direction relative spacing
Setting；And
Resonance decouples unit, and the resonance decoupling unit includes the split ring resonator formed by microstrip line, the split ring resonator
Set on the first surface of the medium substrate, and between two microstrip antennas.
2. small spacing micro-strip antenna array as described in claim 1, which is characterized in that the microstrip line is in "U" shaped.
3. small spacing micro-strip antenna array as described in claim 1, which is characterized in that the quantity of the split ring resonator is two
It is a, and relative spacing is arranged in a second direction, the opening of two split ring resonators is opposite or opening direction is consistent, described
Second direction is vertical with first direction.
4. small spacing micro-strip antenna array as described in claim 1, which is characterized in that two microstrip antennas are with the opening
Resonant ring is symmetrical arranged for center line.
5. small spacing micro-strip antenna array as described in claim 1, which is characterized in that the second surface of the medium substrate is
Common ground plate.
6. small spacing micro-strip antenna array as claimed in claim 5, which is characterized in that the thickness range of the medium substrate is
0.1mm-3mm。
7. small spacing micro-strip antenna array as described in claim 1, which is characterized in that each microstrip antenna includes having
The main part of open slot, the feeding point outside the open slot and it is described extend out to from the open slot outside and with it is described
The current feed department of feeding point connection.
8. small spacing micro-strip antenna array as claimed in claim 7, which is characterized in that the main part includes base portion and from base
The side that portion stretches out at both ends and is oppositely arranged, two sides and the base portion are enclosed the open slot, the current feed department
It is arranged in bar shaped, one end of the current feed department is connect with the base portion, and the other end of the current feed department is connect with the feeding point,
The feeding point is located at immediately ahead of the opening of the open slot.
9. small spacing micro-strip antenna array as claimed in claim 7, which is characterized in that the feeding point is set on the medium
Metallization VIA on substrate.
10. small spacing micro-strip antenna array as described in claim 1, which is characterized in that the small spacing micro-strip antenna array
It further include four metallized semi-pores, four metallized semi-pores are respectively arranged on the side of the medium substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669538.4A CN110311224A (en) | 2019-07-23 | 2019-07-23 | Small spacing micro-strip antenna array |
Applications Claiming Priority (1)
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| CN113517560A (en) * | 2021-03-25 | 2021-10-19 | 西安电子科技大学 | Wide-angle scanning millimeter wave array antenna |
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| CN113552539A (en) * | 2021-06-22 | 2021-10-26 | 珠海市海米软件技术有限公司 | Resonance electromagnetic decoupling component for improving millimeter wave radar receiving and transmitting isolation |
| CN114447617A (en) * | 2022-01-28 | 2022-05-06 | 江苏亿连通信技术有限公司 | Microstrip antenna structure based on microstrip line structure decoupling design and design method thereof |
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| CN111355027B (en) * | 2020-03-11 | 2022-10-21 | 中天宽带技术有限公司 | Self-decoupling antenna array |
| CN111355027A (en) * | 2020-03-11 | 2020-06-30 | 中天宽带技术有限公司 | Self-decoupling antenna array |
| CN111326864A (en) * | 2020-03-13 | 2020-06-23 | 天津大学 | Coupling differential feed double compression mode patch antenna and solar cell integration |
| CN111326864B (en) * | 2020-03-13 | 2021-06-18 | 天津大学 | Coupling differential feed double compression mode patch antenna and solar cell integration |
| CN112134017A (en) * | 2020-08-04 | 2020-12-25 | 中国航空工业集团公司沈阳飞机设计研究所 | Decoupling method between airborne array antenna oscillators based on metamaterial and metamaterial |
| CN112134017B (en) * | 2020-08-04 | 2023-12-22 | 中国航空工业集团公司沈阳飞机设计研究所 | Decoupling method between airborne array antenna elements based on metamaterial and metamaterial |
| CN113517560A (en) * | 2021-03-25 | 2021-10-19 | 西安电子科技大学 | Wide-angle scanning millimeter wave array antenna |
| CN113517572A (en) * | 2021-03-25 | 2021-10-19 | 西安电子科技大学 | High-isolation double-frequency dual-polarization array antenna for millimeter wave frequency band |
| CN113552539A (en) * | 2021-06-22 | 2021-10-26 | 珠海市海米软件技术有限公司 | Resonance electromagnetic decoupling component for improving millimeter wave radar receiving and transmitting isolation |
| CN113552539B (en) * | 2021-06-22 | 2024-06-04 | 珠海市海米软件技术有限公司 | Resonant electromagnetic decoupling component for improving millimeter wave radar receiving and transmitting isolation |
| CN114447617A (en) * | 2022-01-28 | 2022-05-06 | 江苏亿连通信技术有限公司 | Microstrip antenna structure based on microstrip line structure decoupling design and design method thereof |
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