CN107482315A - A kind of stacked dielectric paster antenna of broadband flat gain - Google Patents
A kind of stacked dielectric paster antenna of broadband flat gain Download PDFInfo
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- CN107482315A CN107482315A CN201710599856.9A CN201710599856A CN107482315A CN 107482315 A CN107482315 A CN 107482315A CN 201710599856 A CN201710599856 A CN 201710599856A CN 107482315 A CN107482315 A CN 107482315A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention discloses a kind of stacked dielectric paster antenna of broadband flat gain, one layer of perfecting including being cascading from bottom to up is brushed with printed circuit board (PCB), one layer of medium substrate, the three layers of dieelctric sheet of circuit, three layers of dieelctric sheet includes the first medium thin slice of the superiors, the medium sheet in intermediate layer, undermost second medium thin slice, wherein, the first medium thin slice, the second medium thin slice are made using the material of permittivity ε 1, the medium sheet is made using the material of permittivity ε 2, ε 1 is more than ε 2, and ε 1 is more than 5 times of ε 2.The present invention has higher gain and lower section compared to traditional medium resonator antenna；There is broader bandwidth compared in general dielectric patch antenna.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of stacked dielectric paster antenna of broadband flat gain.
Background technology
Because reducing the ohmic loss of metal tape, medium resonator antenna is compared to conventional microstrip metal patch antenna
Possess higher radiation efficiency, the characteristic is especially pronounced in the application of millimeter wave frequency band.Meanwhile medium resonator antenna design spirit
It is living, can be as needed using the different materials thickness different with design.But compared to traditional metal micro-strip paster day
For line, medium resonator antenna also has its inferior position, for example gain is relatively low, and section is higher, limits its development and application.
In the recent period, there is the concept that scholar proposes dielectric patch antenna.This antenna is normal using high dielectric in structure design
Several thin-medium pasters replaces metal patch, and its radiation mechanism is similar to metal micro-strip paster antenna, therefore dielectric patch antenna
Possessing the high-gain similar with metal micro-strip antenna, the medium resonator antenna than routine is higher by about 2dB, meanwhile, because of use
Thin-medium piece also causes such antenna to have relatively low section height.On the other hand, dielectric patch antenna still falls within dielectric resonance
Device category, the distribution of its field mode are no different with conventional media resonator.Because without ohmic loss, its radiation efficiency is micro- higher than metal
Band paster antenna (especially pronounced in millimeter wave frequency band).
Although dielectric patch antenna has a radiation efficiency higher compared with metal micro-strip paster antenna, and more conventional medium is humorous
Shake the higher gain of device antenna, its bandwidth of operation is narrower.For its radiation mechanism is similar to metal micro-strip paster angle, by
In metal micro-strip paster antenna narrower bandwidth, thus the bandwidth of operation of dielectric patch antenna is also limited；Substantially still fallen within from it
For dielectric resonator category, the dielectric resonator of high-k has higher q values thus also determines dielectric patch antenna
Bandwidth-Constrained.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of flat increasing in broadband
The stacked dielectric paster antenna of benefit.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of stacked dielectric of broadband flat gain
Paster antenna, including one layer of perfecting being cascading from bottom to up are brushed with printed circuit board (PCB), the one layer of medium base of circuit
Plate, three layers of dieelctric sheet, three layers of dieelctric sheet include first medium thin slice, medium sheet, the orlop in intermediate layer of the superiors
Second medium thin slice, it is characterised in that the first medium thin slice, the second medium thin slice use permittivity ε 1 material
Material is made, and the medium sheet is made using the material of permittivity ε 2, and ε 1 is more than ε 2, and ε 1 is more than 5 times of ε 2.Pass through increase
First and second dieelctric sheets can obtain bandwidth more broader than traditional sucrose paster.Wherein, three layers of dieelctric sheet, medium base
Plate, printed circuit board (PCB) are rectangular plate-like and center superposition, and the planar dimension of three layers of dieelctric sheet is identical, the medium base
Plate, the planar dimension of printed circuit board (PCB) are identical, and the planar dimension of three layers of dieelctric sheet is less than the medium substrate, the printing
The planar dimension of circuit board.
Wherein, the top surface of the printed circuit board (PCB) sets layer of metal, and has on the vertical split on this layer of metal ground
There is a gap, the bottom surface of the printed circuit board (PCB) is provided with a microstrip feed line, and the microstrip feed line is from the printed circuit board (PCB)
The center of a line extends along the direction towards opposite side, and projection and institute of the gap on the printed circuit board (PCB) bottom surface
Microstrip feed line is stated to intersect vertically.
Implement the stacked dielectric paster antenna of the broadband flat gain of the present invention, have the advantages that：The present invention's
Stacked dielectric paster antenna, there are higher gain and lower section compared to traditional medium resonator antenna；Compared to one
As dielectric patch antenna have broader bandwidth, stable gain is able to maintain that in passband, beneficial to composition aerial array.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings：
Fig. 1 is the exploded view of the embodiment of stacked dielectric paster antenna of the present invention；
Fig. 2 is the sectional view of stacked dielectric paster antenna of the present invention；
Fig. 3 is the equivalent model figure of stacked dielectric paster antenna of the present invention；
Fig. 4 is the length of side L1 ' and reflectance factor graph of a relation of undermost dielectric patch；
Fig. 5 is the height h4 and reflectance factor graph of a relation of the dielectric patch in intermediate layer；
Fig. 6 is the reflectance factor of antenna and the emulation of gain and test result schematic diagram in a specific embodiment；
Fig. 7 be in a specific embodiment antenna in E faces and H faces emulation testing directional diagram.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the exemplary embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The term comprising ordinal number such as " first " that is used in this specification, " second " can be used for illustrating various inscapes,
But these inscapes are not limited by these terms.It is only that using the purpose of these terms and distinguishes an inscape
In other inscapes.For example, on the premise of the interest field of the present invention is not departed from, the first inscape can be named as the
Two inscapes, similarly, the second inscape can also be named as the first inscape.
In order to be better understood from technical scheme, below in conjunction with Figure of description and specific embodiment
Technical scheme is described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are
To the detailed description of technical scheme, rather than the restriction to technical scheme, in the case where not conflicting, this
Technical characteristic in inventive embodiments and embodiment can be mutually combined.
With reference to figure 1-2, the stacked dielectric paster antenna of wide band high-gain of the invention includes stacking gradually from bottom to up setting
Put：One layer of perfecting is brushed with 300, one layers of printed circuit board (PCB), 200, three layers of the medium substrate dieelctric sheet 101-103 of circuit.Its
In, it is three layers of dieelctric sheet 101-103 including the superiors first medium thin slice 101, the medium sheet 102 in intermediate layer, most lower
The second medium thin slice 103 of layer.Printed circuit board (PCB) 300,200, three layers of dieelctric sheet 101-103 of medium substrate five-layer structure are under
It is respectively h1~h5 to upper thickness, is sticked together between every Rotating fields by the compacting of thin glue, these glue are linear to day
The influence of energy can be ignored.
Wherein, the first medium thin slice 101, the second medium thin slice 103 use high-k ε 1 material system
Make, the medium sheet 102 is made using low-k ε 2 material, and ε 1 is much larger than ε 2, and ε 1 is more than 5 times of ε 2.It is theoretical
On, ε 1, ε 2 concrete numerical value are not limited, as long as its ratio is larger, and ε 1 is significantly larger than the dielectric of medium substrate 200
Constant.
In the present embodiment, three layers of dieelctric sheet 101-103, medium substrate 200, printed circuit board (PCB) 300 are rectangular slab
Shape and center superposition.It is aligned during in order to facilitate assembling, can change the thickness of three layers of dieelctric sheet makes three layers of dieelctric sheet 101-
103 planar dimension is identical, is L1 × L1.Simple in order to design and make, medium substrate 200 and printed circuit board (PCB) 300 are all
Designed using Rogers RO5880 material, and medium substrate 200, the planar dimension of printed circuit board (PCB) 300 are identical, are
L3×L3.In the present embodiment, the planar dimension of three layers of dieelctric sheet 101-103 is less than the medium substrate 200, the printing
The planar dimension of circuit board 300, i.e. L1 are less than L3.
On the feed of the antenna of the present invention, specifically, the top surface of the printed circuit board (PCB) 300 is with setting layer of metal
303, and this layer of metal there is a gap 301 on 303 vertical split, the size of gap 301 is S1 × S2.The printing electricity
The bottom surface of road plate 300 is provided with one 50 Ω microstrip feed line 302, and the width of microstrip feed line 302 is S3=1.5mm, length L2
=26mm.Specifically, the microstrip feed line 302 is from the center of a line of the printed circuit board (PCB) 300 along towards opposite side
Direction extends beyond the 3mm of gap 301, i.e. projection of the gap 301 on the bottom surface of printed circuit board (PCB) 300 and the micro-strip
Feeder line 302 intersects vertically.
When choosing the medium of differing dielectric constant, different quality factor qs can be obtained；The dielectric constant of the medium of selection
When higher, Q values are larger, and the bandwidth of resonator is also just narrow, and although gain has a little increase, but changing with frequency
Become, gain can reduce rapidly, and now the performance of dielectric patch antenna is just very similar to metal patch antenna；With dielectric constant
Reduction, Q values gradually reduce, the bandwidth of antenna also gradual broadening, although maximum gain decreases, can one compared with
A higher level is kept in wide frequency band.In one specific embodiment, while consider bandwidth and gain, have selected in table 1
Shown material carrys out designing antenna.Secondly, turn to match somebody with somebody and test for convenience, the flexibility processed using diectric antenna, choose not
Same thickness causes the planar dimension of stepped construction to be consistent, and greatly reduces the difficulty being aligned during assembling.The antenna simultaneously
Planar dimension be less than metal patch, while feed structure is simple, facilitates forming array.
Table 1
| Parameters | h1 | h2 | h3 | h4 | h5 | L1 | ε1 |
| Values/mm | 0.508 | 1.016 | 1 | 0.5 | 5 | 14.5 | 69 |
| Parameters | S1 | S2 | S3 | S4 | L2 | L3 | ε2 |
| Values/mm | 8.5 | 1 | 1.5 | 3 | 26 | 45 | 5.7 |
The principle of the present embodiment is as follows：Two layers, which is sandwiched in, using the medium sheet designed compared with low-k uses high dielectric
Between the media sheet of constant.It can be demarcated because the difference between the two dielectric constants is sufficiently large, at more than about 5 times
Face is equivalent to preferable magnetic wall.Ground level under dieelctric sheet can then be equivalent to preferable electric wall.Therefore, the present invention is carried
The stacked dielectric paster antenna gone out can be equivalent to analysis model as shown in Figure 3.Because this special boundary condition, simultaneously
The TE11 moulds of two different frequencies can have been encouraged respectively.The parameter of two key parameters of this antenna is given in Fig. 4,5
Scanning, while keep other specification to fix.It is anti-when the length of side for being presented in Fig. 4 only changing second medium thin slice 103 is L1 '
Penetrate coefficient, it can be seen that when L1 ' size increases to 15.5mm from 13.5mm, the resonance point of low frequency is gradually moving to low frequency
It is dynamic and the resonance point of high frequency keeps constant.It has been presented in Fig. 5 the reflection system during medium sheet selection different height in intermediate layer
Number, it can be seen that when h4 gradually increases, the resonance point of high frequency is gradually mobile to low frequency and the resonance point of low frequency is kept not
Become.But if changing any one material, the change of dielectric constant can all cause the change of boundary condition, can be humorous to two
Vibration frequency all impacts.It is related that this phenomenon, which also demonstrates two resonant frequencies to boundary condition,.The meaning of this design
Justice be can two resonance points the design of antenna with independent control, can be advantageous to.
In order to confirm the design of the above, emulation and the test result of reflectance factor and gain are given in Fig. 6, can from figure
To find out, impedance bandwidth has reached 18.2%, from 5GHz to 6GHz, is slightly less than simulation result, is probably mainly because assembling band
The antenna mismatch problem come.The gain of test can averagely reach 7.2dBi in whole frequency range.Fig. 7 give such antenna
Directional diagram (two width above is 5.2GHz, below two width be 5.8GHz) during 5.2GHz and 5.8GHz, dotted line represents emulation in figure
As a result, solid line represents test result, it is seen that test result and simulation result are similar, and cross polarization during test is in E faces and H faces
Both less than -20dB, the figure on the right is the main polarization directional diagram in H faces, is symmetrical.The figure on the left side is the main polarization directional diagram in E faces,
Slightly asymmetric, the reason for causing is probably the feed port of side.
It can be seen that the antenna of the present embodiment design can obtain one 18.2%, | S11 |<- 10dB impedance bandwidth, it is average
Gain has reached 7.2dBi in band, and antenna possesses stable directional diagram, wider impedance matching and higher gain, simultaneously
Feed structure is simple, is easy to a group battle array.Because such antenna does not use metal may be used as radiating element, its design concept yet
To apply in millimeter-wave systems.
In summary, implement the stacked dielectric paster antenna of the wide band high-gain of the present invention, have the advantages that：Phase
Than having higher gain and lower section in general medium resonator antenna；Have more compared to traditional dielectric patch antenna
Wide bandwidth and more flat gain.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (3)
1. a kind of stacked dielectric paster antenna of broadband flat gain, it is characterised in that structure includes stacking gradually from bottom to up
The one layer of perfecting set is brushed with printed circuit board (PCB), one layer of medium substrate, the three layers of dieelctric sheet of circuit, three layers of dieelctric sheet bag
The first medium thin slice of the superiors, the medium sheet in intermediate layer, undermost second medium thin slice are included, wherein, described first is situated between
Matter thin slice, the second medium thin slice are made using the material of permittivity ε 1, and medium sheet uses the material of permittivity ε 2
Make, ε 1 is more than ε 2, and ε 1 is more than 5 times of ε 2.
2. the stacked dielectric paster antenna of broadband flat gain according to claim 1, it is characterised in that three layers of Jie
The planar dimension of matter piece is identical, and the medium substrate, the planar dimension of printed circuit board (PCB) are identical, the plane of three layers of dieelctric sheet
Size is less than the medium substrate, the planar dimension of the printed circuit board (PCB).
3. the stacked dielectric paster antenna of broadband flat gain according to claim 1, it is characterised in that the printing electricity
The top surface of road plate with setting layer of metal, and has a gap, the printed circuit board (PCB) on the vertical split on this layer of metal ground
Bottom surface be provided with a microstrip feed line, the microstrip feed line is from the center of a line of the printed circuit board (PCB) along towards opposite side
Direction extension, and projection of the gap on the printed circuit board (PCB) bottom surface intersects vertically with the microstrip feed line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710599856.9A CN107482315B (en) | 2017-07-21 | 2017-07-21 | Broadband flat gain laminated dielectric patch antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710599856.9A CN107482315B (en) | 2017-07-21 | 2017-07-21 | Broadband flat gain laminated dielectric patch antenna |
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| CN107482315A true CN107482315A (en) | 2017-12-15 |
| CN107482315B CN107482315B (en) | 2020-04-07 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687112A (en) * | 2019-01-22 | 2019-04-26 | 南通大学 | A kind of miniaturization dielectric patch antenna |
| CN110011028A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system, communicating terminal and base station |
| CN110247186A (en) * | 2019-06-21 | 2019-09-17 | 西安电子科技大学 | A kind of broad beam medium resonator antenna |
| CN110957565A (en) * | 2019-11-26 | 2020-04-03 | 南京信息工程大学 | Broadband polarization reconfigurable high-gain antenna for 5G base station |
| CN111525244A (en) * | 2020-06-03 | 2020-08-11 | 重庆邮电大学 | Millimeter wave dielectric resonator antenna array for communication of Internet of vehicles |
| CN111602296A (en) * | 2018-01-15 | 2020-08-28 | 罗杰斯公司 | Dielectric resonator antenna with first and second dielectric portions |
| CN111868999A (en) * | 2018-01-22 | 2020-10-30 | 京瓷株式会社 | Antenna, communication module and street lamp |
| CN111900542A (en) * | 2020-08-21 | 2020-11-06 | 南京信息工程大学 | High-frequency high-gain broadband dielectric resonator antenna |
| CN112259958A (en) * | 2020-10-14 | 2021-01-22 | 西安交通大学 | Single-feed double-frequency double-circular-polarization millimeter wave dielectric resonator antenna |
| CN112928448A (en) * | 2021-01-20 | 2021-06-08 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN116780181A (en) * | 2023-07-04 | 2023-09-19 | 中天射频电缆有限公司 | Differential broadband bidirectional radiation dielectric patch resonator antenna |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111602296A (en) * | 2018-01-15 | 2020-08-28 | 罗杰斯公司 | Dielectric resonator antenna with first and second dielectric portions |
| CN111868999A (en) * | 2018-01-22 | 2020-10-30 | 京瓷株式会社 | Antenna, communication module and street lamp |
| CN110011028A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system, communicating terminal and base station |
| CN109687112A (en) * | 2019-01-22 | 2019-04-26 | 南通大学 | A kind of miniaturization dielectric patch antenna |
| CN110247186B (en) * | 2019-06-21 | 2021-01-01 | 西安电子科技大学 | Wide-beam dielectric resonator antenna |
| CN110247186A (en) * | 2019-06-21 | 2019-09-17 | 西安电子科技大学 | A kind of broad beam medium resonator antenna |
| CN110957565A (en) * | 2019-11-26 | 2020-04-03 | 南京信息工程大学 | Broadband polarization reconfigurable high-gain antenna for 5G base station |
| CN111525244A (en) * | 2020-06-03 | 2020-08-11 | 重庆邮电大学 | Millimeter wave dielectric resonator antenna array for communication of Internet of vehicles |
| CN111525244B (en) * | 2020-06-03 | 2021-10-26 | 重庆邮电大学 | Millimeter wave dielectric resonator antenna array for communication of Internet of vehicles |
| CN111900542A (en) * | 2020-08-21 | 2020-11-06 | 南京信息工程大学 | High-frequency high-gain broadband dielectric resonator antenna |
| CN112259958A (en) * | 2020-10-14 | 2021-01-22 | 西安交通大学 | Single-feed double-frequency double-circular-polarization millimeter wave dielectric resonator antenna |
| CN112259958B (en) * | 2020-10-14 | 2022-03-08 | 西安交通大学 | Single-feed double-frequency double-circular-polarization millimeter wave dielectric resonator antenna |
| CN112928448A (en) * | 2021-01-20 | 2021-06-08 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN112928448B (en) * | 2021-01-20 | 2023-05-26 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN116780181A (en) * | 2023-07-04 | 2023-09-19 | 中天射频电缆有限公司 | Differential broadband bidirectional radiation dielectric patch resonator antenna |
| CN116780181B (en) * | 2023-07-04 | 2024-09-06 | 中天射频电缆有限公司 | Differential broadband bidirectional radiation dielectric patch resonator antenna |
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| CN107482315B (en) | 2020-04-07 |
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