CN109713441A - A kind of antenna element and array antenna - Google Patents
A kind of antenna element and array antenna Download PDFInfo
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- CN109713441A CN109713441A CN201811631017.1A CN201811631017A CN109713441A CN 109713441 A CN109713441 A CN 109713441A CN 201811631017 A CN201811631017 A CN 201811631017A CN 109713441 A CN109713441 A CN 109713441A
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- 230000010287 polarization Effects 0.000 claims abstract description 99
- 238000005388 cross polarization Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 23
- 230000009977 dual effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The present invention provides a kind of antenna element and array antenna, the antenna element includes ground plane and the first polarization component and the second polarization component that are stacked on the ground plane；First polarization component includes the first irradiation unit, is set to first irradiation unit close to the first feed line of the ground plane side and the first coaxial line being located between first feed line and the ground plane；First irradiation unit includes extremely sub along the extremely son of first direction spaced first and second；The second coaxial line that second polarization component includes the second irradiation unit, is set to second feed line of second irradiation unit far from the ground plane side and is located between second irradiation unit and the ground plane；Second irradiation unit includes that spaced third extremely son and quadrapole, first polarization component and second polarization component are used to generate cross polarization in a second direction.The array antenna includes antenna element above-mentioned.
Description
[technical field]
The present invention relates to field of communication technology, in particular to a kind of antenna element and array antenna.
[background technique]
At present in millimere-wave band, for realizing that double frequency and the research of dual-polarized array are less simultaneously.28GHz and 39GHz are same
When the narrower bandwidth that covers, and the form implemented is excessively complicated, and cross polarization caused by dual polarization is more poor than still, and
It is had a certain disadvantage in volume.
[summary of the invention]
The present invention provides a kind of antenna element for solving existing double frequency and dual polarized antenna
And array antenna.
To achieve the above object, the present invention provides a kind of antenna element, the antenna element includes ground plane and folded sets
The first polarization component and the second polarization component on the ground plane；First polarization component include the first irradiation unit,
Be set to first irradiation unit close to the first feed line of the ground plane side and be located in first feed line and
The first coaxial line between the ground plane；First irradiation unit includes along the extremely son and the of first direction spaced first
Two is extremely sub；First feed line include with described first extremely son it is opposite and connect the first feed arm, with it is described second extremely sub
Opposite and coupling the second feed arm connects the first connecting portion of first feed arm and second feed arm and opens up
In the first through hole of the first connecting portion；The outer core of first coaxial line and the first connecting portion and the ground plane connect
It connects, the inner core of first coaxial line is connect through the first through hole with the described first extremely son；The second polarization component packet
The second irradiation unit is included, second feed line of second irradiation unit far from the ground plane side is set to and is located in described
The second coaxial line between second irradiation unit and the ground plane；Second irradiation unit includes spaced in a second direction
Third extremely son and quadrapole, the third extremely son on offer the second through-hole；Second feed line includes and the third
Extremely son is opposite and the third feed arm of connection, and fourth feed arm that couples opposite with the quadrapole and connects described the
The second connecting portion of three feed arms and the 4th feed arm；The outer core of second coaxial line is extremely sub and described with the third
The inner core of ground plane connection, second coaxial line is connect through second through-hole with the second connecting portion；Described first
Direction and the orthogonal setting of the second direction, first polarization component and second polarization component are for generating orthopole
Change.
Preferably, first polarization component further includes being set to first feed arm end and connection first feedback
Electric arm and described first the first extremely sub linking arm；Second polarization component further includes being set to third feed arm end
And connect the second extremely sub linking arm of the third feed arm and the third.
Preferably, the antenna element further includes the folded first medium plate and second medium plate set, and the ground plane is set to
Side of the second medium plate far from the first medium plate, first irradiation unit and second feed line are set to described
Second medium plate is set to described first close to the side of the first medium plate, second irradiation unit and first feed line
Side of the dielectric-slab far from the second medium plate.Preferably, the described first extremely son and the described second extremely son is along described second
Axis of orientation is symmetrical arranged；The third extremely son and the quadrapole are arranged along the first direction axial symmetry.
Preferably, first feed line extends along the first direction；Second feed line is along described second
Direction extends.
Preferably, described first extremely son offer the extremely son of the first feed gaps, described second offer the second feed gaps,
The third extremely son offers third feed gaps, the quadrapole offers the 4th feed gaps；Wherein, first feedback
Electric gap and the second feed gaps axial symmetry setting；The third feed gaps and the 4th feed gaps axial symmetry are set
It sets.
Preferably, the first feed seam is in U shape, and U shape opening is extremely sub towards described second.
Preferably, the third feed seam is in U shape, and U shape is open towards the quadrapole.
The present invention also provides a kind of array antenna, the array antenna includes at least two antenna elements above-mentioned.
Preferably, the antenna element is arranged in a linear.
Compared with prior art, antenna element and array antenna provided by the present invention, by the way that the pole with feed line is arranged
Change component, antenna element is allowed independently to realize dual polarization with lesser volume.Meanwhile it being opened up on the extremely son of polarization component
Feed gaps, to greatly reduce the influence of higher hamonic wave.
[Detailed description of the invention]
Fig. 1 is antenna element schematic perspective view provided by the invention.
Fig. 3 is the overlooking structure diagram of antenna element.
Fig. 2 is the configuration schematic diagram of the first polarization component of antenna element.
Fig. 4 is cross-sectional view of the Fig. 2 along line A-A.
Fig. 5 is the configuration schematic diagram of the second polarization component of antenna element.
Fig. 6 is cross-sectional view of the Fig. 2 along line B-B.
Fig. 7 is the array antenna schematic perspective view that second embodiment of the invention provides.
Fig. 8 A is the efficiency curve diagram of the first polarization component of antenna element.
Fig. 8 B is the efficiency curve diagram of the second polarization component of antenna element.
Fig. 9 A is the reflection coefficient chart of the first polarization component of four antenna elements of array antenna.
Fig. 9 B is the reflection coefficient chart of the second polarization component of four antenna elements of array antenna.
Figure 10 A is directional diagram of first polarization component in 26.5GHz of antenna element.
Figure 10 B is directional diagram of first polarization component in 28GHz of antenna element.
Figure 11 A is directional diagram of first polarization component in 37GHz of antenna element.
Figure 11 B is directional diagram of first polarization component in 38.5GHz of antenna element.
Figure 12 A is directional diagram of second polarization component in 26.5GHz of antenna element.
Figure 12 B is directional diagram of second polarization component in 28GHz of antenna element.
Figure 13 A is directional diagram of second polarization component in 37GHz of antenna element.
Figure 13 B is directional diagram of second polarization component in 38.5GHz of antenna element.
[specific embodiment]
In order to make the purpose of the present invention, technical solution and advantage are more clearly understood, with reference to the accompanying drawings and embodiments, right
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Referring to Fig. 1, first embodiment of the invention provides a kind of antenna element 100, which includes ground plane
10, second medium plate 20, the second polarization component 30, first medium plate 40 and the first polarization component 50.First polarization component 50
It is stacked on ground plane 10 with the second polarization component 30.First polarization component 50 and the second polarization component 30 are orthogonal for generating
Polarization.First medium plate 10 and second medium plate 20, which are folded, to be set, and second medium plate 20 is set to ground plane 10 and first medium plate 40
Between.
Wherein, material, thickness, dielectric constant and loss angle tangent that first medium plate 40 and second medium plate 20 are chosen
Value etc. those skilled in the art environment for applying according to actual needs can select again.Preferably, first medium plate 40
Dielectric constant with second medium plate 20 is 2.8, and loss tangent 0.002 is thus greatly reduced to antenna element 100
The loss of overall performance.
Fig. 2-Fig. 4 is please referred to, the first polarization component 50 includes the first irradiation unit 500, and the first feed line 503, first is coaxial
Line 504 and the first linking arm 505.Wherein, the first irradiation unit 500 includes first extremely sub 501 and second extremely sub 502.First
Extremely son 501 and the second extremely son 502 is arranged at intervals at first medium plate 40 far from 10 side of ground plane along first direction, and along the
Two axis of orientations are symmetrical arranged, wherein first direction and the orthogonal setting of the second direction, namely vertical each other.First extremely sub 501
On be provided with the first grounding point 5011, which can be one or more, and the first extremely son 501 connects by first
Place 5011 is electrically connected with ground plane 10.
First feed line 503 extends along a first direction, and is laid between second medium plate 20 and first medium plate 40,
Namely first feed line 503 be set to the first irradiation unit 500 close to 10 side of ground plane.First feed line 503 connects by first
It connects arm 505 to be electrically connected with the first extremely son 501, and the first feed line 503 is electrically coupled with the second extremely son 502.First coaxial line 504
And be located between the first feed line 503 and ground plane 10, for the first feed line 503 to be connected to external transmission network
Network.
Specifically, the first feed line 503 includes first connecting portion 5033, the second feed arm 5032 and the first feed arm
5034.Wherein the first feed arm 5034 is opposite with first extremely sub 501 and connect, the second feed arm 5032 and the second extremely sub 502 phases
Pair and couple, first connecting portion 5033 is set between the second feed arm 5032 and the first feed arm 5034, the second feed of connection
Arm 5032 and the first feed arm 5034.First through hole, the inner core 5041 of the first coaxial line 504 are provided in first connecting portion 5033
It is electrically connected by the first through hole with the first extremely son 501, so that external feeding network can feed for the first polarization component 50,
Meanwhile first the outer core 5042 of coaxial line 504 be electrically connected with the first feed line 503 and ground plane 10, to be shorted the first feed line
503 and ground plane 10.
In section Example, the first extremely son 501 offers the first feed gaps 5015, and the second extremely son 502 offers second
Feed gaps 5021, to reduce the influence of higher hamonic wave.The shape of first feed gaps 5015 and the second feed gaps 5021 can
Be it is identical, can also be different, it is not limited here.Preferably, the first feed gaps 5015 and the second feed gaps 5021
Shape is identical and is axisymmetricly arranged, and symmetry axis is in a second direction.
Specifically, the first feed gaps 5015 can have the current feed department gap of opening for " H " shape, concave etc., and
The extremely son 502 of opening direction second.Second feed gaps 5021 have the current feed department gap of opening also for " H " shape, concave etc.,
And the extremely son 501 of opening direction first.Preferably, the first feed gaps 5015 and the second feed gaps 5021 are concave,
Axisymmetricly it is arranged.
More preferably, the first grounding point 5011 is set in the opening of the first feed gaps 5015.
Please refer to Fig. 3 and Fig. 5-6, the second irradiation unit 300, the first feed line 303, the second coaxial line 304 and second
Linking arm 305.Wherein, the second irradiation unit 300 includes third extremely son 301 and quadrapole 302.Third extremely son 301 and quadrupole
Son 302 is arranged at intervals between first medium plate 40 and second medium plate 20 along second direction, and axis pair along a first direction
Claim setting.Namely third extremely son 301 and quadrapole 302 and the first feed line 503 are set to first medium plate 40 or second Jie
The same side of scutum 20.
Third extremely son 301 is provided with the second through-hole 3011, and the inner core 3041 of coaxial line 304 passes through the second through-hole 3011 and the
Two feed lines 303 electrical connection, for the second feed line 303 feed.The outer core 3042 of second coaxial line 304 is electrically connected ground plane 10
With third extremely son 301, to be shorted third extremely son 301 and ground plane 10.
Second feed line 303 extends along second direction, and is laid in first medium plate 40 far from third extremely son 301 1
Side, the second feed line 303 and the first extremely son 501 are set to the same side of first medium plate 40, and the second feed line 303 and third
Extremely son 301 is electrically connected, and is electrically coupled with quadrapole 302.
Specifically, the second feed line 303 includes second connecting portion 3032, the 4th feed arm 3031 and third feed arm
3033.Wherein the 4th feed arm 3031 is used to be electrically coupled with the formation of quadrapole 302, and third feed arm 3033 passes through the second connection
Arm 305 is electrically connected with third extremely son 301, and passes through the outer core 3042 and ground plane 10 of third extremely son 301 and the second coaxial line 304
Electrical connection.Second connecting portion 3032 is set between the 4th feed arm 3031 and third feed arm 3033, and is fed with the 4th
Arm 3031 and third feed arm 3033 are electrically connected.Meanwhile 3041 electricity of inner core of second connecting portion 3032 and the second coaxial line 304
Connection, so that pumping signal can be transferred to the second feed line 303 by external feeding network.
In some embodiments, third extremely son 301 offers third feed gaps 3012, and quadrapole 302 offers the
Four feed gaps 3021, to reduce the influence of higher hamonic wave.The shape of third feed gaps 3012 and the 4th feed gaps 3021
It can be identical, can also be different, it is not limited here.Preferably, third feed gaps 3012 and the 4th feed gaps 3021
Shape it is identical and be axisymmetricly arranged, symmetry axis is in a first direction.
Specifically, third feed gaps 3012 can have the current feed department gap of opening for " H " shape, concave etc., and
Opening direction quadrapole 302.4th feed gaps 3021 have the current feed department gap of opening also for " H " shape, concave etc.,
And it is open towards third extremely son 301.Preferably, third feed gaps 3012 and the 4th feed gaps 3021 are concave,
Axisymmetricly it is arranged.
It is highly preferred that the second through-hole 3011 is set in the opening of third feed gaps 3012.
Compared with prior art, antenna element provided by the present invention, by the way that the polarization component with feed line is arranged, so that
Antenna element can independently realize dual polarization with lesser volume.Further, feed gaps are opened up on the extremely son of polarization component,
To greatly reduce the influence of higher hamonic wave.
Referring to Fig. 7, second embodiment of the present invention provides a kind of array antenna 200.The array antenna 200 includes day
Line unit 100.The number of antenna element 100 in array antenna 200 specifically with no restrictions, can according to need the gain reached
The space of array antenna 200 is embedded in the base station for being worth and being applied to determine.
Preferably, antenna element 100 at least two, and the successively close setting of antenna element 100, will not be connected.
It is excellent in order to enable the array antenna 200 of above structure to have both high-gain, low sidelobe, broadband and miniaturization etc.
Point, the array antenna provided in present embodiment specifically include four antenna elements 100.More preferably, the day in array antenna 200
Line unit 100 is four, and is arranged in a linear.
The performance of above-mentioned array antenna 200 is as shown in Fig. 8 A-13B.
As shown in Figure 8 A, Fig. 8 A is the efficiency curve diagram of the first polarization component 50 of antenna element 100.
As shown in Figure 8 B, Fig. 8 B is the efficiency curve diagram of the second polarization component 30 of antenna element 100.
As shown in Figure 9 A, Fig. 9 A is the reflection system of the first polarization component 50 of four antenna elements 100 of array antenna 200
Number curve figure.
As shown in Figure 9 B, Fig. 9 B is the reflection system of the second polarization component 30 of four antenna elements 100 of array antenna 200
Number curve figure.
As shown in Figure 10 A, Figure 10 A be antenna element the first polarization component in the directional diagram of 26.5GHz, wherein curve a
Indicate that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates the face H
Cross polarization and main polarization ratio.
As shown in Figure 10 B, Figure 10 B be antenna element the first polarization component in the directional diagram of 28GHz, wherein curve a table
Show that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates that the face H is handed over
Fork polarization and main polarization ratio.
As shown in Figure 11 A, Figure 11 A be antenna element the first polarization component in the directional diagram of 37GHz, wherein curve a table
Show that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates that the face H is handed over
Fork polarization and main polarization ratio.
As shown in Figure 11 B, Figure 11 B be antenna element the first polarization component in the directional diagram of 38.5GHz, wherein curve a
Indicate that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates the face H
Cross polarization and main polarization ratio.
As illustrated in fig. 12, Figure 12 A be antenna element the second polarization component in the directional diagram of 26.5GHz, wherein curve a
Indicate that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates the face H
Cross polarization and main polarization ratio.
As shown in Figure 12 B, Figure 12 B be antenna element the second polarization component in the directional diagram of 28GHz, wherein curve a table
Show that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates that the face H is handed over
Fork polarization and main polarization ratio.
As shown in FIG. 13A, Figure 13 A be antenna element the second polarization component in the directional diagram of 37GHz, wherein curve a table
Show that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates that the face H is handed over
Fork polarization and main polarization ratio.
As shown in Figure 13 B, Figure 13 B be antenna element the second polarization component in the directional diagram of 38.5GHz, wherein curve a
Indicate that the face E is main polarization, curve b indicates that the cross polarization of the face E and main polarization ratio, curve c indicate that the face H is main polarization, and curve d indicates the face H
Cross polarization and main polarization ratio.
Above-described is only the embodiment of invention, it should be noted here that coming for those of ordinary skill in the art
It says, under the premise of not departing from innovation and creation design, improvement can also be made, but these belong to the protection scope of invention.
Claims (10)
1. a kind of antenna element, which is characterized in that the antenna element includes ground plane and is stacked on the ground plane
First polarization component and the second polarization component；
First polarization component includes the first irradiation unit, is set to first irradiation unit close to the of the ground plane side
One feed line and the first coaxial line being located between first feed line and the ground plane；
First irradiation unit includes extremely sub along the extremely son of first direction spaced first and second；
First feed line includes opposite with described first extremely sub opposite and the first feed arm connecting and the described second extremely son
And it the second feed arm of coupling, connects the first connecting portion of first feed arm and second feed arm and is opened in institute
State the first through hole of first connecting portion；
The outer core of first coaxial line is connect with the first connecting portion and the ground plane, the inner core of first coaxial line
It is connect through the first through hole with the described first extremely son；
Second polarization component includes the second irradiation unit, is set to of second irradiation unit far from the ground plane side
Two feed lines and the second coaxial line being located between second irradiation unit and the ground plane；
Second irradiation unit includes spaced third in a second direction extremely son and quadrapole, opens on the third extremely son
Equipped with the second through-hole；
Second feed line includes third feed arm that is opposite with the third extremely son and connecting, opposite with the quadrapole
And the second connecting portion of the 4th feed arm and connection the third feed arm and the 4th feed arm coupled；
The outer core of second coaxial line is connect with the third extremely son and the ground plane, and the inner core of second coaxial line passes through
Second through-hole is worn to connect with the second connecting portion；The first direction and the orthogonal setting of the second direction, described
One polarization component and second polarization component are for generating cross polarization.
2. antenna element as described in claim 1, it is characterised in that: first polarization component further includes being set to described
One feed arm end and connection first feed arm and described first the first extremely sub linking arm；Second polarization component is also
Including being set to third feed arm end and connecting the second extremely sub linking arm of the third feed arm and the third.
3. antenna element as described in claim 1, it is characterised in that: the antenna element further includes the folded first medium plate set
With second medium plate, the ground plane is set to side of the second medium plate far from the first medium plate, first spoke
It penetrates portion and second feed line is set to the second medium plate close to the side of the first medium plate, second irradiation unit
Side of the first medium plate far from the second medium plate is set to first feed line.
4. antenna element as described in claim 1, it is characterised in that: the described first extremely son and the described second extremely son is along described
The setting of second direction axial symmetry；
The third extremely son and the quadrapole are arranged along the first direction axial symmetry.
5. antenna element as described in claim 1, it is characterised in that: first feed line prolongs along the first direction
It stretches；Second feed line extends along the second direction.
6. the antenna element as described in claim 1-5 any one, it is characterised in that: the described first extremely son offers the first feedback
The extremely son of electric gap, described second offers the second feed gaps, the third extremely son offers third feed gaps, the described 4th
Extremely son offers the 4th feed gaps；
Wherein, first feed gaps and the second feed gaps axial symmetry setting；
The third feed gaps and the 4th feed gaps axial symmetry setting.
7. antenna element as claimed in claim 6, it is characterised in that: first feed is stitched in U shape, and " recessed " word
Type opening is extremely sub towards described second.
8. antenna element as claimed in claim 7, it is characterised in that: the third feed is stitched in U shape, and " recessed " word
Type is open towards the quadrapole.
9. a kind of array antenna, it is characterised in that: the array antenna includes at least two such as claim 1-8 any one institutes
The antenna element stated.
10. array antenna according to claim 9, it is characterised in that: the antenna element is arranged in a linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811631017.1A CN109713441B (en) | 2018-12-29 | 2018-12-29 | Antenna unit and array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811631017.1A CN109713441B (en) | 2018-12-29 | 2018-12-29 | Antenna unit and array antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109713441A true CN109713441A (en) | 2019-05-03 |
| CN109713441B CN109713441B (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811631017.1A Active CN109713441B (en) | 2018-12-29 | 2018-12-29 | Antenna unit and array antenna |
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| CN109713441B (en) | 2021-11-16 |
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Effective date of registration: 20231020 Address after: 213000 No.8 Fengqi Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd. Patentee after: Jiangsu Jicui Zhongyi Technology Industry Development Co.,Ltd. Address before: No.8 Fengqi Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee before: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd. |