CN207368238U - A kind of high-gain millimeter wave circular polarised array antenna - Google Patents
A kind of high-gain millimeter wave circular polarised array antenna Download PDFInfo
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- CN207368238U CN207368238U CN201721316813.7U CN201721316813U CN207368238U CN 207368238 U CN207368238 U CN 207368238U CN 201721316813 U CN201721316813 U CN 201721316813U CN 207368238 U CN207368238 U CN 207368238U
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- metal layer
- medium substrate
- ring
- millimeter wave
- array antenna
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Abstract
The utility model discloses a kind of high-gain millimeter wave circular polarised array antenna, it is made of radiation volume array, feeding network, feed probes.Wherein radiating volume array includes first medium substrate and is printed on the first metal layer and second metal layer of first medium substrate upper and lower side, wherein feeding network includes the 3rd medium substrate and is printed on the 3rd metal layer and the 4th metal layer of the 3rd medium substrate upper and lower side, radiate and second medium substrate is filled between volume array and feeding network, feed probes connect through three layers of medium substrate and with the first metal layer and the 4th metal layer.It is feeding network and the millimeter wave circular polarized antenna of transmission line that the utility model, which is devised based on substrate integration wave-guide, has higher gain and axial ratio bandwidth, and the stability of antenna is improved while reducing the complexity of processing.
Description
Technical field
The utility model belongs to antenna technical field, is related to a kind of millimeter wave antenna, more particularly to a kind of to pass through substrate collection
The high-gain millimeter wave circular polarisation battle array for feeding into feed network for waveguide and being isolated between radiator and feeding network by metallic plate
Array antenna, can be applied to the terminal antenna of mobile communication, Home eNodeB, and move in exploring antenna.
Background technology
With the development of the fast development of Modern wireless communication technology, particularly personal mobile communications technology, low-frequency wireless
Frequency spectrum resource is petered out.To realize high-speed wideband wireless access technology, certainly will need to develop high frequency radio spectrum resources.Millimeter
Ripple (30~300GHz) is since its wavelength is short, with wide, disturb the advantages that small, can efficiently solve high-speed radio broadband wireless and connect
Enter the problems faced in technology, therefore millimeter wave becomes next generation mobile communication (5G) and the weight of the mobile communication in future
Want candidate's frequency range.In order to break through the key technology of millimetre-wave attenuator faster, the Antenna Design on millimetre-wave attenuator both at home and abroad
With testing progress also just like a raging fire.
Although the research of millimeter wave antenna has certain progress in the world, millimeter wave circular polarised array antenna is still
Seldom, structure therein is even more complicated, it is necessary to add caused by multilayer processing, the technique that certainly will need higher, and complex process
Work error is also bigger, then performance is also unstable, while complicated structure is unfavorable for the integrated and production of antenna and device with technique
Industry.
Utility model content
The purpose of this utility model is to solve drawbacks described above of the prior art, there is provided a kind of high-gain millimeter wave circle
Polarization array antenna.
The purpose of this utility model can be reached by adopting the following technical scheme that：
A kind of high-gain millimeter wave circular polarised array antenna, including four layers of metal layer, three layers of medium substrate and some
Feed probes.
Three layers of medium substrate respectively are first medium substrate, second medium substrate and the 3rd medium substrate.It is described
First medium substrate upper side be printed with the first metal layer, downside is printed with second metal layer, the 3rd medium
The upper side of substrate is printed with the 3rd metal layer, downside is printed with the 4th metal layer, and the second medium substrate is located at institute
Between the second metal layer stated and the 3rd metal layer.
Wherein, the side of the first metal layer is etched with 16 radiating elements, is arranged in a manner of 4*4 arrays.Often
A radiating element includes primary radiation ring, parasitic radiation ring, matching annulus.
The second metal layer is printed on the downside of first medium substrate, one lateral erosion of second metal layer 16 first
Circular hole.
Above-mentioned the first metal layer, second metal layer and first medium substrate form radiation volume array.
Wherein, the 3rd metal layer is printed on the upper side of the 3rd medium substrate, and the 3rd metal layer side is etched with
16 the second circular holes；4th metal layer is printed on the downside of the 3rd medium substrate, and the 4th metal layer side is etched with
Rectangular ring gap；The metalized blind vias be embedded in the 3rd medium substrate in, one end connects with the 3rd metal layer, the other end and
4th metal layer connects.
Second medium substrate is filled between second metal layer and the 3rd metal layer.
16 feed probes are interspersed between the first metal layer and the 4th metal layer.One end connects with primary radiation ring, and with
Matching annulus is concentric, and the other end connects with the 4th metal layer.16 feed probes are each passed through 16 first of second metal layer
Circular hole, and pass through 16 the second circular holes of the 3rd metal layer.
The utility model is had the following advantages relative to the prior art and effect：
1) the utility model isolating due to second metal layer and the 3rd metal layer, feeding network is largely reduced
Radiation to the radiation effect of radiator unit.
2) the utility model direct feed by way of feed probes, relative to the couple feed of other modes, is improved
The stability of antenna.
3) electromagnetic wave is introduced into feeding network by the utility model by coupling unit from rectangular waveguide connector, which tool
There is preferable impedance bandwidth.
4) the utility model combines radiation volume array, feeding network and feeding transmission line comprehensive simulating, and it is excellent to have obtained performance
Millimeter wave circular polarised array antenna that is good and stablizing.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the first metal layer of the aerial array of the utility model；
Fig. 3 is the schematic top plan view of the radiating element of the utility model；
Fig. 4 is the second metal layer 4 of the aerial array of the utility model；
Fig. 5 is the 3rd metal layer 7 of the aerial array of the utility model；
Fig. 6 is the 4th metal layer 8 of the aerial array of the utility model；
Fig. 7 is the antenna structure side view of the utility model；
Fig. 8 is the simulation result of the impedance bandwidth of the utility model；
Fig. 9 is that the axis of the utility model compares simulation result；
Figure 10 is the gain simulation result of the utility model；
Figure 11 is the xoz plane patterns of the utility model；
Figure 12 is the yoz plane patterns of the utility model；
In figure, reference numeral is：1--- primary radiation rings, 2--- parasitic radiation rings, 3--- feed probes, the second metals of 4---
Layer, 5--- first medium substrates, the 3rd medium substrates of 6---, the 3rd metal layers of 7---, the 4th metal layers of 8---, 9--- metallization
Blind hole, 10--- matching annulus, the first circular holes of 11---, the second circular holes of 12---, 13--- rectangular apertures, 14--- second medium bases
Plate, 15--- circular troughs.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The scope of the utility model protection.
Embodiment
As shown in Figure 1, the present embodiment devises a kind of new high-gain millimeter wave circular polarised array antenna, including radiation
Volume array, feeding network, feed probes 3.Wherein, feed probes are metallization VIA.
As shown in Fig. 2, radiation volume array is printed on the first metal layer side, radiation volume array includes 16 radiating elements,
Arranged in a manner of 4*4 arrays.
As shown in figure 3, each radiating element includes primary radiation ring 1, parasitic radiation ring 2, matching annulus 10.The main spoke
It is an open annular micro-strip that ring 1, which is penetrated, with parasitic radiation ring 2, and parasitic radiation ring 2 is located in the ring of primary radiation ring 1, is same ring
Center.Matching annulus 10 connects with 1 one end of primary radiation ring.
Wherein, the shape of open annular micro-strip can be circular, oval or arbitrary polygon.
As shown in figure 4, first circular hole 11 of second metal layer 4 one lateral erosion, 16 formed objects.
As shown in figure 5, second circular hole 12 of the 3rd metal layer 7 one lateral erosion, 16 formed objects.
Respectively positioned at the first metal layer, second metal layer, the matching annulus 10 in the 3rd metal layer, the first circular hole 11 and the
The center location of two circular holes 12 overlaps.
As shown in fig. 6,8 one lateral erosion rectangular ring gap 13 of the 4th metal layer.The antenna is fed by rectangular waveguide, is needed
Will be by 13 coupled electromagnetic wave of rectangular ring gap into feeding network.
The 3rd medium substrate 6 is filled between 3rd metal layer 7 and the 4th metal layer 8.Metalized blind vias 9, and
Four matching metalized blind vias 9a, 9b, 9c, 9d are embedded in the 3rd medium substrate 6, and one end connects with the 3rd metal layer 7, the other end
Connect with the 4th metal layer 8.
As shown in fig. 7, first medium substrate 5 is filled between the first metal layer and second metal layer 4.The feed probes
3 are interspersed between the first metal layer and the 4th metal layer, and its one end and primary radiation ring 1 and matching annulus 10 connect, the other end with
4th metal layer 8 connects.Through the first circular hole 11 when the feed probes 3 pass through second metal layer 4, through the 3rd metal layer 7
When through the second circular hole 12.Feed probes 3, matching annulus 10, the first circular hole 11 and second circular hole 12 is in antenna plane
In there is identical relative position, and probe radius is less than the first circular hole 11 and the second circular hole 12.
The utility model millimeter wave circular polarized antenna array, by boundary rectangle waveguide feed, for fixed rectangular waveguide,
The circular trough 15 of antenna correspondence position groove four equal sizes of sky, passes through the screw fixed antenna and rectangular waveguide of corresponding size.
Wherein, 0.6 λ of girth of primary radiation ringc~0.9 λc, opening angle is 40 °~70 °, and line width is 0.01 λc~0.03
λc；0.4 λ of girth of parasitic radiation ringc~0.7 λc, opening angle is 5 °~35 °, it is interior any around ring heart rotation angle；Its
In, metalized blind vias is 0.01 λ with matching metalized blind vias radiusc~0.03 λc, spacing is 0.03 λc~0.08 λc, wherein λcFor
Center of antenna frequency fcCorresponding wavelength in free space.
With reference to the mark of Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the design parameter of antenna is as follows in the present embodiment：Four layers of gold
Belong to layer and three layers of medium substrate length and width dimensions all same, be 47*29mm, wherein 5 thickness of first medium substrate is 1mm, is F4B materials
Matter, dielectric constant 2.2；15 thickness of second medium substrate is 0.2mm, is Rogers4350B, its dielectric constant is 3.48；3rd
6 thickness of medium substrate is 0.635mm, is Rogers 3010, its dielectric constant is 10.2.In the first metal layer, primary radiation ring 1
Its internal diameter is 1.65mm, line width 0.4mm, 68 ° of opening angle, its outside diameter of parasitic radiation ring 2 1.25mm, line width 0.3mm, angular aperture
12 ° of degree.3 radius 0.2mm of feed probes, its becket radius 0.4mm contacted.Radiating element spacing P1 is 0.48mm, spacing
P2 is 0.66mm.In 3rd medium substrate 6, metalized blind vias 9 and four matching metalized blind vias 9a, 9b, 9c, 9d its radius point
Not Wei 0.2mm, 0.2mm, 0.2mm, 0.3mm, 0.2mm, 9 spacing P of metalized blind vias is 0.6mm.In 4th metal layer, straight-flanked ring
13 outside diameter length and width of shape gap are respectively L1=7.112mm, and W1=3.56mm, internal diameter length and width are respectively L2=2.8mm, W2=
0.9mm；13 outside diameter long side of rectangular ring gap center corresponding with internal diameter long side overlaps, back gauge S=0.3mm.
As shown in figure 8, the impedance bandwidth of the millimeter wave circular polarised array antenna obtained by the present embodiment, return loss exist
29.3-30.8GHz inside reach -10dB.
As shown in figure 9, the axis ratio of the millimeter wave circular polarised array antenna obtained by the present embodiment, wherein polarization mode are dextrorotation
Circular polarisation, in 28.6-30.5GHz axis ratio within 3dB.
As shown in Figure 10, the gain of the millimeter wave circular polarised array antenna obtained by the present embodiment, in 28.5-31.5GHz frequencies
In segment limit, gain reaches 15.5dBi, and has metastable gain with frequency change.
As shown in figure 11, the xoz plane 30GHz directional diagrams of the millimeter wave circular polarised array antenna obtained by the present embodiment, this
Utility model antenna xoz directions have stable directional diagram, and have less cross polarization, and radiate front and rear ratio 20dB with
On.
As shown in figure 12, the yoz plane 30GHz directional diagrams of the millimeter wave circular polarised array antenna obtained by the present embodiment, this
Utility model antenna yoz directions have stable directional diagram, and have less cross polarization, and radiate front and rear ratio 20dB with
On.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model and from above-mentioned
The limitation of embodiment, the change made under other any Spirit Essences and principle without departing from the utility model, modify, replace
Generation, combination, simplify, and should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (9)
1. a kind of high-gain millimeter wave circular polarised array antenna, it is characterised in that the antenna includes first set gradually
Medium substrate, second medium substrate and the 3rd medium substrate and 16 feed probes, wherein, the first medium substrate
Upper side is printed with the first metal layer, downside is printed with second metal layer, the upper side printing of the 3rd medium substrate
There is the 3rd metal layer, downside to be printed with the 4th metal layer, the second medium substrate be located at the second metal layer and
Between 3rd metal layer；
The side of the first metal layer is etched with 16 radiating elements, is arranged in a manner of 4*4 arrays, each radiating element
Include primary radiation ring, parasitic radiation ring, matching annulus；
The side of the second metal layer is etched with 16 the first circular holes, wherein, the first metal layer, second metal layer and
One medium substrate forms radiation volume array；
The side of 3rd metal layer is etched with 16 the second circular holes, and the 4th metal layer side is etched with straight-flanked ring
Shape gap, wherein, the 3rd metal layer, the 4th metal layer and the 3rd medium substrate form feeding network, as one point 16
Power splitter；
16 feed probes are interspersed between the first metal layer and the 4th metal layer, one end difference of every feed probes
Connect with corresponding primary radiation ring, and it is concentric with corresponding matching annulus, and the other end connects with the 4th metal layer.
2. a kind of high-gain millimeter wave circular polarised array antenna according to claim 1, it is characterised in that respectively positioned at
The center location point of 16 matching annulus, the first circular hole and the second circular hole in one metal layer, second metal layer, the 3rd metal layer
It Dui Ying not overlap.
A kind of 3. high-gain millimeter wave circular polarised array antenna according to claim 2, it is characterised in that described 16
Feed probes are each passed through 16 the first circular holes of second metal layer, and pass through 16 the second circular holes of the 3rd metal layer.
A kind of 4. high-gain millimeter wave circular polarised array antenna according to claim 1, it is characterised in that the main spoke
It is an open annular micro-strip that ring, which is penetrated, with the parasitic radiation ring, and the parasitic radiation ring is located at the primary radiation ring
Ring in, to connect with ring center, the matching annulus with one end of the primary radiation ring；Wherein, the split ring
The shape of shaped microstrip is circular, oval or arbitrary polygon.
A kind of 5. high-gain millimeter wave circular polarised array antenna according to claim 1, it is characterised in that described the 3rd
Metalized blind vias, and four matching metalized blind vias, one end of above-mentioned blind hole and the described the 3rd are embedded with medium substrate
Metal layer connects, and the other end connects with the 4th metal layer.
A kind of 6. high-gain millimeter wave circular polarised array antenna according to claim 1, it is characterised in that the antenna
By boundary rectangle waveguide feed, in the circular trough of the empty four equal sizes of antenna correspondence position groove, for fixing rectangular waveguide,
And pass through the screw fixed antenna and rectangular waveguide of corresponding size.
A kind of 7. high-gain millimeter wave circular polarised array antenna according to claim 1, it is characterised in that the feed
Probe is metallization VIA.
A kind of 8. high-gain millimeter wave circular polarised array antenna according to claim 1, it is characterised in that the main spoke
Penetrate 0.6 λ of girth of ringc~0.9 λc, opening angle is 40 °~70 °, and line width is 0.01 λc~0.03 λc；The parasitic radiation
0.4 λ of girth of ringc~0.7 λc, opening angle is 5 °~35 °, wherein λ any around ring heart rotation angle in itcFor the antenna
Centre frequency fcCorresponding wavelength in free space.
A kind of 9. high-gain millimeter wave circular polarised array antenna according to claim 5, it is characterised in that the metal
It is 0.01 λ to change blind hole with the matching metalized blind vias radiusc~0.03 λc, spacing is 0.03 λc~0.08 λc, wherein λcFor
Center of antenna frequency fcCorresponding wavelength in free space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316813.7U CN207368238U (en) | 2017-10-13 | 2017-10-13 | A kind of high-gain millimeter wave circular polarised array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316813.7U CN207368238U (en) | 2017-10-13 | 2017-10-13 | A kind of high-gain millimeter wave circular polarised array antenna |
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| Publication Number | Publication Date |
|---|---|
| CN207368238U true CN207368238U (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721316813.7U Expired - Fee Related CN207368238U (en) | 2017-10-13 | 2017-10-13 | A kind of high-gain millimeter wave circular polarised array antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449586A (en) * | 2018-11-09 | 2019-03-08 | 吉林大学 | A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane |
| CN110190408A (en) * | 2019-05-10 | 2019-08-30 | 深圳大学 | A kind of circular polarisation electromagnetic dipole array antenna |
| CN114421151A (en) * | 2022-03-28 | 2022-04-29 | 陕西海积信息科技有限公司 | Shaped omnidirectional circularly polarized antenna |
-
2017
- 2017-10-13 CN CN201721316813.7U patent/CN207368238U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449586A (en) * | 2018-11-09 | 2019-03-08 | 吉林大学 | A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane |
| CN109449586B (en) * | 2018-11-09 | 2020-05-01 | 吉林大学 | Circular polarization annular microstrip antenna with bent stub ground plane |
| CN110190408A (en) * | 2019-05-10 | 2019-08-30 | 深圳大学 | A kind of circular polarisation electromagnetic dipole array antenna |
| CN114421151A (en) * | 2022-03-28 | 2022-04-29 | 陕西海积信息科技有限公司 | Shaped omnidirectional circularly polarized antenna |
| CN114421151B (en) * | 2022-03-28 | 2022-08-02 | 陕西海积信息科技有限公司 | Shaped omnidirectional circularly polarized antenna |
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| Date | Code | Title | Description |
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| 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: 20180515 Termination date: 20191013 |