CN206992301U - One kind miniaturization close coupling antenna - Google Patents
One kind miniaturization close coupling antenna Download PDFInfo
- Publication number
- CN206992301U CN206992301U CN201720956036.6U CN201720956036U CN206992301U CN 206992301 U CN206992301 U CN 206992301U CN 201720956036 U CN201720956036 U CN 201720956036U CN 206992301 U CN206992301 U CN 206992301U
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- feed
- array
- dielectric layer
- resonance
- close coupling
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Abstract
The utility model discloses one kind to minimize close coupling antenna, including dual polarized antenna unit, and equidistant arrangement forms feed array side by side, and the center of the dual polarized antenna unit is on the same line；Array dielectric-slab, the corresponding upper end for being located at a dual polarized antenna unit, it is connected with each other between the adjacent array dielectric-slab；Array reflecting plate, located at the lower end of the feed array；Wherein, there is spacing (S) between the adjacent dual polarized antenna unit, the scope of the spacing (S) is：300mm‑360mm.
Description
Technical field
It the utility model is related in wireless communication field, be to be related to a kind of miniaturization close coupling antenna, can be used for spaceborne
Antenna.
Background technology
With the development of the communication technology, antenna as a vital part in Wireless Telecom Equipment, antenna performance
Quality directly affects the communication quality of whole communication system.Due to dual polarized antenna itself it is peculiar the advantages of, it both can be by
As antenna for base station, method that again can be by loading branch-line coupler or directional coupler obtains circular polarized antenna.This practicality
It is new that there is broadband, simple in construction, easy processing and the low section obtained using close coupling technology, minimize, gently
The advantages that quantization so that the antenna becomes the preferred antenna in satellite antenna design.
Conventional antenna array array element spacing need to meet λ 0/2<S<The conditions of λ 0, according to this array element condition group battle array, tradition can be caused
Aerial array section is high, and volume is big, while certain difficulty can be brought to satellite antenna design and installation.
Utility model content
The purpose of this utility model is：A kind of miniaturization close coupling antenna is provided, battle array is reduced as far as possible with conventional antenna array
Mutual coupling is different between member, and the utility model is by reducing antenna element spacing and antenna element spacing being optimized, reasonably
Using capacitive reactance caused by the mutual coupling between antenna element, the induction reactance between antenna and reflecting plate is counteracted, improves the impedance of antenna
Matching properties, the broadening bandwidth of operation of antenna, the section of aerial array is reduced, it is achieved thereby that the miniaturization of antenna, gently
Quantify.
Realizing the technical scheme of above-mentioned purpose is：One kind miniaturization close coupling antenna, including dual polarized antenna unit, side by side
Equidistant arrangement forms feed array, and the center of the dual polarized antenna unit is on the same line；Array dielectric-slab, it is corresponding to set
It is connected with each other between the upper end of a dual polarized antenna unit, the adjacent array dielectric-slab；Array reflecting plate, is located at
The lower end of the feed array；Wherein, there is spacing (S) between the adjacent dual polarized antenna unit, the spacing (S)
Scope is：300mm-360mm.
The dual polarized antenna unit includes radiation patch, is attached at the array dielectric-slab lower surface；Two feeds are single
Member, two feed element right-angled intersections are arranged at the lower surface of the radiation patch.
The feed element includes resonance electric feedback ring dielectric layer, provided with resonance feed gaps；S type feed structures, are assembled in
In the resonance electric feedback ring dielectric layer；Coaxial cable, the inner core of the coaxial cable is connected to the S types feed structure, described
The metal screen layer of coaxial cable is fixed on the resonance electric feedback ring dielectric layer；Electric ring support, the resonance electric feedback ring dielectric layer
In assembling and the electric ring support；The junction of the resonance electric feedback ring dielectric layer and the electric ring support is the strong point；It is described
Electric ring support is concave structure, and its middle part is the link slot of indent, and two dual polarized antenna units pass through link slot
Right-angled intersection connects；Wherein, S types feed structure by resonance feed gaps to the resonance electric feedback ring dielectric layer couple feed,
The resonance electric feedback ring dielectric layer is fed by the strong point to radiation patch, so as to produce radiation.
The S types feed structure includes S type feed circuits, and its one end is assembled in the resonance electric feedback ring by end detail
One side of dielectric layer, the other end are assembled in another side of the resonance electric feedback ring dielectric layer by end detail；Wherein, institute
State upside or downside that end detail is located at the resonance feed gaps；Wherein, the body of the S types feed circuit is along described humorous
Shake electric feedback ring dielectric layer aspect arrangement；Pad, the body of the S types feed circuit are fixed on the resonance by pad and fed
Ring dielectric layer.
The end detail adjustable type is assembled in the resonance electric feedback ring dielectric layer.
The resonance electric feedback ring dielectric layer is polytetrafluoroethylene floor.
The radiation patch has width (Wa), and the scope of the width (Wa) is 0.24 λL~0.28 λL, λLFor work frequency
The lowest operating frequency of section.
There is a spacing (H) between the array dielectric-slab and the array reflecting plate；The scope of the spacing (H) is 0.11
λL~0.15 λL, λLFor the lowest operating frequency of working frequency range.
The array dielectric-slab is polyfluortetraethylene plate.
The array reflecting plate is metallic plate.
The utility model has the advantages that：Miniaturization close coupling antenna of the present utility model, is coupled using S types microstrip feed line and presented
Electricity, by adjusting each end detail of S type feed structures, preferable matching properties can be obtained.Introduce resonant ring feed skill
Art, the resonance electric feedback ring dielectric layer both can be as the bottom plates of S type microstrip feed lines, again can be as the feed knot of radiation patch
Structure, so as to improve the matching properties in antenna operating band, obtain wider bandwidth of operation.Employ reduction antenna element
Spacing the application of the technology, effectively improves Antenna Impedance Matching, reduces day to increase the close coupling technology of mutual coupling intensity
Linear dimension, so as to obtain the aerial array of a miniaturization.With small volume, simple in construction, handling ease, cost is cheap to wait spy
Point.
Brief description of the drawings
The utility model is further explained with reference to the accompanying drawings and examples.
Fig. 1 is the positive structure schematic of the feed array of the utility model face battle array.
Fig. 2 is the top surface structure schematic diagram of the feed array of the utility model face battle array.
Fig. 3 is the bottom surface structure schematic diagram of the feed array of the utility model face battle array.
Fig. 4 is the overall structure figure of dual polarized antenna unit of the present utility model.
Fig. 5 is the structural representation of feed element of the present utility model.
Fig. 6 is the reflection coefficient of port loss of the utility model antenna element.
Fig. 7 is the interport isolation of the utility model antenna element.
Fig. 8 is horizontal radiation pattern of the utility model antenna element in 430MHz.
Fig. 9 is elevation radiation patytern of the utility model antenna element in 430MHz.
Figure 10, Figure 12 are the active standing waves of+45 ° of polarized antenna arrays ports of the utility model linear array.
Figure 11, Figure 13 are+45 ° of poliarizing antennas of the utility model linear array per directional diagram of the column unit at 430MHz.
Wherein,
1 dual polarized antenna unit；2 array dielectric-slabs；
3 array reflecting plates；11 radiation patch；
12 feed elements；121 resonance electric feedback ring dielectric layers；
122S type feed structures；123 electric ring supports；
1211 resonance feed gaps；1221S type feed circuits；
1222 pads；1223 end details.
Embodiment
The explanation of following examples is with reference to additional schema, to illustrate the specific reality that the utility model can be used to implementation
Apply example.The direction term that the utility model is previously mentioned, such as " on ", " under ", "front", "rear", "left", "right", " top ", " bottom "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used is to illustrate and understand the utility model, rather than
To limit the utility model.
Embodiment, as shown in Figure 1 to Figure 3, one kind miniaturization close coupling antenna, including dual polarized antenna unit 1, array are situated between
Scutum 2, array reflecting plate 3.
In the present embodiment, equidistant arrangement forms feed array, the dual polarized antenna to the dual polarized antenna unit 1 side by side
The center of unit 1 is on the same line.Wherein, there is spacing (S) between the adjacent dual polarized antenna unit 1, between being somebody's turn to do
Scope away from (S) is：300mm-360mm.Preferably 330mm.
In the present embodiment, the number of dual polarized antenna unit 1 is 8, is arranged side by side, forms 1*8 linear array.Pass through
Mutual coupling intensity between spacing (S) control dual polarized antenna unit 1, shape is responded using the mutual coupling between dual polarized antenna unit 1
Into capacitive reactance offset induction reactance between dual polarized antenna unit 1 and array reflecting plate 3, so as to improve the impedance of antenna port
With performance, the broadening beamwidth of antenna, by reducing antenna section height and reducing array element spacing the small of base-station antenna array is realized
Type.
As shown in figure 4, in the present embodiment, the dual polarized antenna unit 1 includes 11, two feed elements of radiation patch
12.The radiation patch 11 is attached at the lower surface of array dielectric-slab 2；Two right-angled intersections of feed element 12 are arranged at
The lower surface of the radiation patch 11.During specific design：, will be relative to water after two feed elements 12 are set into right-angled intersection
Flat 45 ° of longitudinal direction rotation, form ± 45 ° of dual polarization feed structure.The feed element 12 is connected to the radiation patch 11.
In the present embodiment, the radiation patch 11 has width (Wa), and the scope of the width (Wa) is 0.24 λL~
0.28λL, λLFor the lowest operating frequency of working frequency range.
As shown in figure 5, in the present embodiment, the feed element 12 includes resonance electric feedback ring dielectric layer 121, S types feed knot
Structure 122, electric ring support 123, coaxial cable.Specifically, electric ring support 123.
Specifically, the electric ring support 123 is concave structure, its middle part is the link slot of indent, and two described double
Polarized antenna elements 1 are connected by link slot right-angled intersection；Resonance electric feedback ring dielectric layer 121 is distributed in concave structure,
The shake junction of electric feedback ring dielectric layer and electric ring support 123 is the strong point.The resonance electric feedback ring dielectric layer 121 passes through electric ring branch
Frame 123 is connected to radiation patch 11.
The resonance electric feedback ring dielectric layer 121 is provided with resonance feed gaps 1211, and the resonance feed gaps 1211 are located at
The symmetrical both sides of concave structure.The resonance electric feedback ring dielectric layer 121 is polytetrafluoroethylene floor, and its thickness is
1.2mm, dielectric constant 2.2.Resonance electric feedback ring dielectric layer 121 can both pass through the couple feed exhibition of resonance feed gaps 1211
Wide bandwidth, antenna section can be reduced by the short circuit connection of electric ring support 123 again.
The S types feed structure 122 is assembled in the resonance electric feedback ring dielectric layer 121.Specifically, the S types feed
Structure 122 includes S types feed circuit 1221, pad 1222.Wherein, one end of the S types feed circuit 1221 passes through end branch
Section 1223 is assembled in a side of the resonance electric feedback ring dielectric layer 121, and the other end is assembled in described by end detail 1223
Another side of resonance electric feedback ring dielectric layer 121；Wherein, the end detail 1223 is located at the resonance feed gaps 1211
Upside or downside；Wherein, aspect arrangement of the body of the S types feed circuit 1221 along the resonance electric feedback ring dielectric layer 121；
The body of the S types feed circuit 1221 is fixed on the resonance electric feedback ring dielectric layer 121 by pad 1222.
In the present embodiment, the adjustable type of end detail 1223 is assembled in the resonance electric feedback ring dielectric layer 121.Pass through tune
End detail 1223 is saved to obtain preferable matching properties.
In the present embodiment, the inner core of the coaxial cable is connected to the S types feed structure 122, the coaxial cable
Metal screen layer is fixed on the resonance electric feedback ring dielectric layer 121.
Wherein, S types feed structure 122 is coupled by resonance feed gaps 1211 to the resonance electric feedback ring dielectric layer 121
Feed, the resonance electric feedback ring dielectric layer 121 are fed by the strong point to radiation patch 11, so as to produce radiation.
In the present embodiment, the upper end of a dual polarized antenna unit 1 is located at corresponding to the array dielectric-slab 2, it is adjacent
The array dielectric-slab 2 between be connected with each other；The array dielectric-slab 2 is square polyfluortetraethylene plate, and its thickness is
1.2mm, dielectric constant 2.2.
In the present embodiment, the array reflecting plate 3 is located at the lower end of the feed array；The array dielectric-slab 2 and institute
Stating between array reflecting plate 3 has a spacing (H)；The scope of the spacing (H) is 0.11 λL~0.15 λL, λLFor working frequency range
Lowest operating frequency.The in general spacing (H) is 110mm.The array reflecting plate 3 is metallic plate, and its thickness is 2mm.
Reference picture 6, with less than | S11| -10dB is standard, the selected working frequency range of dual polarized antenna unit 1 in embodiment
For 320MHz~580MHz, relative bandwidth 57.8%.
Reference picture 7, the dual-port isolation of selected antenna element is in whole working frequency range (320MHz in embodiment
~580MHz) in be above 55dB, show there is higher isolation between two ports, when ensureing two port workings mutually not
Interference.
Reference picture 8 and Fig. 9, it is the far-field radiation side of antenna element horizontal plane at 430MHz selected in embodiment
Xiang Tu, greatest irradiation direction as seen from the figure are less than main polarization at least 38dB in the vertical direction with reflecting plate, cross polarization,
Show that antenna polarization unit has relatively low cross polarization.
Reference picture 10, Figure 12, it is the active return loss curve of aerial array port in embodiment, it can be seen that each column
The active return loss of port is all approximately less than -10dB in 320MHz~580MHZGHz frequency ranges, and section ports omit in high frequency treatment
Higher than -10dB, but the electrical property of aerial array is not influenceed.
Reference picture 11, Figure 13, it is the directional diagram in embodiment at aerial array 430MHz, as can be seen from the figure antenna
Array maximum gain is all higher than 15.7dBi, and horizontal 3dB lobe widths are 68.5 degree, vertical 12.8 degree of 3dB lobe widths.Simultaneously
Begin in the direction vertical with reflecting plate, without any deviation, front and rear ratio about 16dB in greatest irradiation direction.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. one kind miniaturization close coupling antenna, it is characterised in that including
Dual polarized antenna unit, side by side equidistant arrangement form feed array, the center of the dual polarized antenna unit is the same as always
On line；
Array dielectric-slab, the corresponding upper end for being located at a dual polarized antenna unit, between the adjacent array dielectric-slab
It is connected with each other；
Array reflecting plate, located at the lower end of the feed array；
Wherein, there is spacing (S) between the adjacent dual polarized antenna unit, the scope of the spacing (S) is：300mm-
360mm。
2. miniaturization close coupling antenna according to claim 1, it is characterised in that the dual polarized antenna unit includes
Radiation patch, it is attached at the array dielectric-slab lower surface；
Two feed elements, two feed element right-angled intersections are arranged at the lower surface of the radiation patch.
3. miniaturization close coupling antenna according to claim 2, it is characterised in that the feed element includes
Resonance electric feedback ring dielectric layer, provided with resonance feed gaps；
S type feed structures, it is assembled in the resonance electric feedback ring dielectric layer；
Coaxial cable, the inner core of the coaxial cable are connected to the S types feed structure, the metal screen layer of the coaxial cable
It is fixed on the resonance electric feedback ring dielectric layer；
Electric ring support, resonance electric feedback ring dielectric layer assembling with the electric ring support；The resonance electric feedback ring dielectric layer with
The junction of the electric ring support is the strong point；
The electric ring support is concave structure, and its middle part is the link slot of indent, and two dual polarized antenna units lead to
Cross link slot right-angled intersection connection；
Wherein, S types feed structure is presented the resonance electric feedback ring dielectric layer couple feed, the resonance by resonance feed gaps
Electric ring dielectric layer is fed by the strong point to radiation patch, so as to produce radiation.
4. miniaturization close coupling antenna according to claim 3, it is characterised in that the S types feed structure includes
S type feed circuits, its one end are assembled in a side of the resonance electric feedback ring dielectric layer by end detail, and the other end leads to
Cross another side that end detail is assembled in the resonance electric feedback ring dielectric layer；
Wherein, the end detail is located at the upside or downside of the resonance feed gaps；
Wherein, aspect arrangement of the body of the S types feed circuit along the resonance electric feedback ring dielectric layer；
Pad, the body of the S types feed circuit are fixed on the resonance electric feedback ring dielectric layer by pad.
5. miniaturization close coupling antenna according to claim 4, it is characterised in that the end detail adjustable type is assembled in
The resonance electric feedback ring dielectric layer.
6. miniaturization close coupling antenna according to claim 3, it is characterised in that the resonance electric feedback ring dielectric layer is poly-
Tetrafluoroethene layer.
7. miniaturization close coupling antenna according to claim 2, it is characterised in that the radiation patch has width
(Wa), the scope of the width (Wa) is 0.24 λL~0.28 λL, λLFor the lowest operating frequency of working frequency range.
8. miniaturization close coupling antenna according to claim 1, it is characterised in that the array dielectric-slab and the array
There is a spacing (H) between reflecting plate；The scope of the spacing (H) is 0.11 λL~0.15 λL, λLFor the minimum work of working frequency range
Frequency.
9. miniaturization close coupling antenna according to claim 1, it is characterised in that the array dielectric-slab is polytetrafluoroethyl-ne
Alkene plate.
10. miniaturization close coupling antenna according to claim 1, it is characterised in that the array reflecting plate is metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720956036.6U CN206992301U (en) | 2017-08-02 | 2017-08-02 | One kind miniaturization close coupling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720956036.6U CN206992301U (en) | 2017-08-02 | 2017-08-02 | One kind miniaturization close coupling antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992301U true CN206992301U (en) | 2018-02-09 |
Family
ID=61418440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720956036.6U Expired - Fee Related CN206992301U (en) | 2017-08-02 | 2017-08-02 | One kind miniaturization close coupling antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206992301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785654A (en) * | 2017-08-02 | 2018-03-09 | 苏州工业园区艺达精密机械有限公司 | One kind miniaturization close coupling antenna |
-
2017
- 2017-08-02 CN CN201720956036.6U patent/CN206992301U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785654A (en) * | 2017-08-02 | 2018-03-09 | 苏州工业园区艺达精密机械有限公司 | One kind miniaturization close coupling antenna |
| CN107785654B (en) * | 2017-08-02 | 2024-03-22 | 苏州工业园区艺达精密机械有限公司 | Miniaturized strong coupling antenna |
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Legal Events
| 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: 20180209 |