CN209461645U - A kind of double-fed multi-frequency antenna device - Google Patents
A kind of double-fed multi-frequency antenna device Download PDFInfo
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- CN209461645U CN209461645U CN201920375686.0U CN201920375686U CN209461645U CN 209461645 U CN209461645 U CN 209461645U CN 201920375686 U CN201920375686 U CN 201920375686U CN 209461645 U CN209461645 U CN 209461645U
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Abstract
The utility model provides a kind of double-fed multi-frequency antenna device, it include: the first metal layer, second metal layer, ground plane, medium substrate between metal layer and between metal layer and earth plate, it is characterized in that, metamaterial layer is provided between the first metal layer and second metal layer, the utility model solves the stacking more formidable high gain of antenna tradition preparation method, interfere small and contradictory problems small in size, by the way that antenna cabling and coupling isolated location is flexibly cleverly arranged, realize extraordinary frequency band isolation characteristic, metamaterial unit is set between two antenna metal layers, pass through the special transport properties of Meta Materials, it further decreases antenna manufactured size and promotes the isolation between low-and high-frequency.
Description
Technical field
The utility model belongs to communication antenna field, more specifically, being related to a kind of double-fed multi-frequency antenna device.
Background technique
With the fast development of wireless telecommunications, in wireless telecommunications can only be in device product, antenna role is more
It is important.Now, since running gear has become for people's indispensable article in life, communication industry has also been driven
It flourishes, also because of that, all kinds of small and exquisite antennas are developed, and are widely used in a variety of different action
In device, for example, planar inverted F-antenna, unipole antenna, three-dimensional antenna etc..However, the antenna of above-mentioned known technology but has perhaps
Make us the disadvantage of dirty disease more.
For example, the structure of planar inverted F-antenna is complex, and since planar inverted F-antenna is to belong to stereoscopic antenna,
Additional die cost and assembling cost leads to its higher cost, and commercially cost is excessively high, and commercial competitiveness can drop therewith
It is low.And three-dimensional antenna should not be placed into the mobile device to become smaller increasingly since volume is excessive, if three-dimensional antenna reduces by force
Volume is miniaturized to realize, be easy to cause the decline of antenna performance again.Especially in multifrequency antenna field, lesser volume is often
The coupled interference between frequency range is caused, guarantees to harass always puzzlement people between different frequency range while how taking into account micromation
Problem.
Therefore, how to propose a kind of multifrequency antenna, can be effectively improved previous antenna structure is complicated, higher cost,
The bad problem of isolation performance, has become very urgent.
Summary of the invention
The purpose of this utility model is to provide a kind of multi-frequency antenna devices of special construction, ask for solving above-mentioned technology
Topic has shorter antenna shapes structure, is realized by the setting of reasonable flexible antenna cabling and special metamaterial layer
It ensure that the isolation effect between different frequency range while multifrequency.
Thus the utility model proposes include: the first metal layer, second metal layer, ground plane, between metal layer with
And the medium substrate between metal layer and earth plate, which is characterized in that be provided between the first metal layer and second metal layer
Metamaterial layer；
The distribution of each layer of antenna assembly is respectively as follows: the first metal layer, first medium substrate, metamaterial layer, second medium base
Plate, second metal layer, third medium substrate, earth plate；
The first metal layer and the second metal layer are all correspondingly arranged on feed connection point, the respectively first feed
Tie point, the second feed connection point；
The first metal layer can work in a multiple frequency ranges, and the antenna structure main body of the first metal layer is that a Z-type is walked
Line connects several comb structures under the long end of the one of Z-type structure, and the size of every comb teeth is identical with setting, for resonance in low frequency
One short end of section, Z-type structure in the connection feed tab between high band, high frequency low frequency, is provided with connection first for work
Feed connection point；The end of high frequency radiation structure can connect reactance component connection parasitic antenna, realize the fine tuning of high-frequency band；
The outside of the Z-type structure is surround by an annular coupling line, and coupling line is located at all edge lines of layer dielectric substrate；
One end of the feed tab is also connected with an annular step cabling, for work in another low-frequency range.
Further, feed connection sheet is provided in second metal layer, the feed connection sheet shares three pieces, intermediate mass
On be provided with the second feed connection point, the feed connection sheet of two sides connects centre feed connection sheet by adjustable reactance original part.
Further, the size that connection sheet is fed in the second metal layer is identical, and arrangement is arranged to sleep Z-type knot
Structure.
Further, artificial micro-structure, the artificial micro-structure aligned transfer are provided on the Meta Materials metal layer
On medium substrate, the cellular construction shape of the artificial micro-structure is identical, but different location setting artificial micro-structure unit
Size is different.
Further, the artificial micro-structure cellular construction is a regular hexagon outline border, is set at the center of regular hexagon
An annulus is set, which connects each fixed point of regular hexagon by metal wire.
The utility model has the following beneficial effects: it is small to solve the more formidable high gain of stacking antenna tradition preparation method, interference
Extraordinary frequency is realized by the way that antenna cabling and coupling isolated location is flexibly cleverly arranged with contradictory problems small in size
Band isolation characteristic and better directionality, are arranged metamaterial unit between two antenna metal layers, pass through the special of Meta Materials
Transport properties further decrease antenna manufactured size and promote the isolation between low-and high-frequency.
Detailed description of the invention
Fig. 1 is the side view of the utility model antenna structure.
Fig. 2 is the first metal layer part of the utility model antenna structure.
Fig. 3 is the second metal layer part of the utility model antenna structure.
Specific embodiment
Illustrate the embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.
It should be noted that diagram provided in the present embodiment only illustrates the basic structure of the utility model in a schematic way
Think, thus only show in schema with related component in the utility model rather than component count when according to actual implementation, shape
And size is drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout
Kenel may also be increasingly complex.
As shown in Figure 1, a kind of double-fed multi-frequency antenna device 1, comprising: the first metal layer 10, second metal layer 20, double-fed
Metal layer ground plane 40, the medium substrate 2/3/4 between metal layer and between metal layer and earth plate, feature exists
In being provided with metamaterial layer 30 between the first metal layer and second metal layer；The distribution of each layer of antenna assembly 1 is respectively as follows:
One metal layer 10, first medium substrate 2, metamaterial layer 30, second medium substrate 3, second metal layer 20, third medium substrate 4,
Earth plate 40；The first metal layer 10 and the second metal layer 20 are all correspondingly arranged on feed connection point 5/6.
In traditional preparation method, electromagnetic radiation generally is carried out using single layer paster antenna, first is that considering medium substrate and earth plate
Between dimensional thickness it is limited, be in radiation frequency bandwidth the considerations of, if setting two-layer laminate, be very likely to cause frequency range band
Wide loss, being in addition in the radiation patch of middle layer its radiance can be led between top layer and bottom metal layer due to folder control
Serious lowization of radiation efficiency is caused, especially in high band or multiband, the loss characteristic of performance be will become apparent from.General skill
Art personnel can have to take the second best, reduce metal layer on multiband aerial setting, by reduce frequency range cabling realize double frequency or
Most three frequency ranges are provided to preferably reduce size and obtain good antenna gain and directionality.
Specific technical solution in the application is that setting the first metal layer 10 works low in a high-frequency band and one
Frequency range, as shown in Fig. 2, the antenna structure main body of the first metal layer 10 is a Z-type cabling, if connecting under a long end of Z-type structure
The quantity of dry comb structure 11, the size of every comb teeth comb teeth identical with setting can be configured as required, comb structure
Material it is preferable to use the materials with feed radiant section same material, but if budget it is sufficient and intentionally get it is more suitable
Size, it is possible to use the production of the materials such as size lesser ceramet, the comb structure in low-frequency range, can have for resonance
The reduction antenna size of effect, this point are applicable in very much in increasingly micromation equipment, increasingly high-frequency today；Z-type structure it is another
Short end in the connection feed tab between high band, high frequency low frequency, is provided with the first feed connection point 5 of connection for work；Institute
The outside for stating Z-type structure is surround by an annular coupling line 12, and coupling line 12 is located at all edge lines of layer dielectric substrate.Ring junction
The setting of structure is more beneficial to the directive property of antenna radiation unit, can be real while radiation of power meets certain SAR standard
Existing good directionality and gain effect.
In addition, being also connected with one in one end of the feed tab where the first feeding point 15 to realize more fully radiating bands
Annular step cabling, for work in another low-frequency range, the setting of step structure can be conducive to harassing between two low frequencies
Coupling, realizes a degree of isolation.Same setting, may also set up certain reactance component in the end of high frequency radiation structure
14 connection parasitic antennas 15, realize the fine tuning of high-frequency structure, so that the fine tuning of resonance is realized, to meet different frequency range scenes.
Referring to Fig. 3, feed connection sheet 21 is provided in second metal layer 20, the feed connection sheet shares three pieces, centre
The second feed connection point 6 is provided on block, the feed connection sheet 21 of two sides connects centre feed by adjustable reactance original part 25
Connection sheet, the setting of reactance component 25 more can flexibly control the coupling Frequency Band Selection of antenna, although currently used frequency range
Diversity is very rich, however works while different frequency range, and such as inessential, majority can have energy consumption, especially consider
The case where consumes such as current intelligent movable equipment, is very serious, if it is possible to reasonable energy conservation, it will greatly being promoted makes
With experience, this is one of the reason of setting adjusts reactance, the coupled interference between low-frequency range is in addition also allowed for, although compared with low frequency
Coupled interference between section is complicated not as good as high frequency, however the gain of low frequency and directionality often show one in actual use
As, if it is possible to just carry out effective and reasonable processing in transmitting source, then it is of great advantage to the working performance promotion in later period, pass through
The connection of inductance is adjusted, the physics electrical length of adjustable feed connection sheet effectively promotes the emission source coupling between low-frequency range
Interference；25 use of reactance component in this case is considered in higher-frequency antenna, the selection of reactance component 25 is usually capacity cell,
However if the frequency range demand for adjusting antenna changes, the transformation of adjustings reactance characteristic foundation whole system herein is also therewith
Change is adjusted, capacitive or perception do not do necessary restriction.
Meta Materials are a kind of novel artificial materials to electromagnetic wave modulating action to grow up nearly ten years, substantially former
Reason is the micro-structure (or artificial atom) of artificial designing material, and such micro-structure is allowed to have specific electromagnetic property, from
And the material being made of the micro-structure of magnanimity number can macroscopically have desirable function solenoid.With traditional material technology
The traditional material technology that electromagnetism utilization ways are developed according to having the natural property of material in nature is different, Meta Materials technology
It is the property and manufacture material for carrying out artificial designing material as needed.Meta Materials are usually attached by a certain number of man-made microstructures
On the substrate with certain mechanics, electromagnetism, these micro-structures with specific pattern and material can be to the spy by its body
The electromagnetic wave for determining frequency range generates modulating action.In recent years, Meta Materials achieve gratifying change application in each communications applications field,
The volumetric bulk of the special electromagnetic characteristic of Meta Materials and its more Boping is all very suitable to for improving antenna structure.
Preferably, preferred in the application, the metamaterial structure layer is arranged between double layer of metal radiating layer, it is described
Artificial micro-structure aligned transfer is on medium substrate, and the cellular construction shape of the artificial micro-structure is identical, preferably Meta Materials knot
Structure unit can be two rows of around the setting of substrate frame, according to the artificial micro-structure list of the Frequency Band Selection reasonable size of actual antennas work
Elemental size, only size is inconsistent for two rows of artificial micro-structures, and purpose is adjusted with by setting artificial micro-structure size
The different refractivity of Electromgnetically-transparent.
Preferably it is less than first row using the size of second row artificial micro-structure in this case, so that through metamaterial layer
Afterwards, become since the refractive index of two rows of (also can according to need to adjust in practical operation and enhance deviation angle using multiple rows of) is incremented by
Change so that the shooting angle of electromagnetic wave shifts, largely reduce the electric signal between lower metal layer harass with
And unnecessary metal depletion, it enables to the size even if antenna integrally less than normal however can still be maintained good independent special
Property.
By the way that metamaterial layer is arranged, so that conventional bandwidth characteristic, or even when obtaining more preferably bandwidth characteristic, realize smaller
Antenna height.It preferably shows, lesser thickness can be used in the medium substrate 2 of antenna and medium substrate 3 in the application
Size, antenna substrate 4 remain original size, the thickness of medium substrate 2 and medium substrate 3 and are equal to medium base in the application
4 thickness of plate, the and it is well known that dimensional thickness of Meta Materials artificial micro-structure is extremely low still can be with if minded very much
Metamaterial unit is set by way of embedded, so can by the dimensional thickness of the half that reduces substrate or so, but still
The good characteristic of original radiating element can be maintained.Preferably, what the antenna overall dimensions in this case improved is contracted to
18mm*18mm*4mm。
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (5)
1. a kind of double-fed multi-frequency antenna device, comprising: the first metal layer, second metal layer, ground plane, between metal layer with
And the medium substrate between metal layer and earth plate, which is characterized in that be provided between the first metal layer and second metal layer
Metamaterial layer；
The distribution of each layer of antenna assembly is respectively as follows: the first metal layer, first medium substrate, metamaterial layer, second medium substrate,
Two metal layers, third medium substrate, earth plate；
The first metal layer and the second metal layer are all correspondingly arranged on feed connection point, the respectively first feed connection
Point, the second feed connection point；
The first metal layer can work in a multiple frequency ranges, and the antenna structure main body of the first metal layer is a Z-type cabling, Z
Several comb structures are connected under the long end of the one of type structure, the size of every comb teeth is identical with setting, for resonance in low-frequency range, Z
One short end of type structure in the connection feed tab between high band, high frequency low frequency, is provided with the first feed of connection for work
Tie point；The end of high frequency radiation structure can connect reactance component connection parasitic antenna, realize the fine tuning of high-frequency band；
The outside of the Z-type structure is surround by an annular coupling line, and coupling line is located at all edge lines of layer dielectric substrate；
One end of the feed tab is also connected with an annular step cabling, for work in another low-frequency range.
2. double-fed multi-frequency antenna device as described in claim 1, which is characterized in that be provided with feed connection in second metal layer
Piece, the feed connection sheet share three pieces, the second feed connection point are provided on intermediate mass, the feed connection sheet of two sides passes through can
It adjusts reactance elements and connects centre feed connection sheet.
3. double-fed multi-frequency antenna device as described in claim 1, which is characterized in that feed connection sheet in the second metal layer
Size it is identical, arrangement be arranged to sleep Z-type structure.
4. double-fed multi-frequency antenna device as described in claim 1, which is characterized in that someone is arranged on the Meta Materials metal layer
Work micro-structure, for the artificial micro-structure aligned transfer on medium substrate, the cellular construction shape of the artificial micro-structure is identical,
But the size that artificial micro-structure unit is arranged in different location is different.
5. double-fed multi-frequency antenna device as claimed in claim 4, which is characterized in that the artificial micro-structure cellular construction is one
Regular hexagon outline border, an annulus is arranged at the center of regular hexagon, which connects each of regular hexagon calmly by metal wire
Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375686.0U CN209461645U (en) | 2019-03-22 | 2019-03-22 | A kind of double-fed multi-frequency antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375686.0U CN209461645U (en) | 2019-03-22 | 2019-03-22 | A kind of double-fed multi-frequency antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209461645U true CN209461645U (en) | 2019-10-01 |
Family
ID=68047369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920375686.0U Expired - Fee Related CN209461645U (en) | 2019-03-22 | 2019-03-22 | A kind of double-fed multi-frequency antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209461645U (en) |
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2019
- 2019-03-22 CN CN201920375686.0U patent/CN209461645U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20200322 |