CN107785654A - One kind miniaturization close coupling antenna - Google Patents
One kind miniaturization close coupling antenna Download PDFInfo
- Publication number
- CN107785654A CN107785654A CN201710651100.4A CN201710651100A CN107785654A CN 107785654 A CN107785654 A CN 107785654A CN 201710651100 A CN201710651100 A CN 201710651100A CN 107785654 A CN107785654 A CN 107785654A
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- close coupling
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- 230000008878 coupling Effects 0.000 title claims abstract description 25
- 238000010168 coupling process Methods 0.000 title claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 25
- 230000009977 dual effect Effects 0.000 claims abstract description 31
- 230000005855 radiation Effects 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005388 cross polarization Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003872 feeding technique Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention 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
The present invention relates in wireless communication field, it is to be related to a kind of miniaturization close coupling antenna, can be used for satellite 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.The present invention
There is broadband, simple in construction, easy processing and the low section obtained using close coupling technology, miniaturization, lightweight
The advantages that so that the antenna becomes the preferred antenna in satellite antenna design.
Conventional antenna array array element spacing need to meet λ0/2<S<λ0Condition, 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.
The content of the invention
The purpose of the present invention is：A kind of miniaturization close coupling antenna is provided, between conventional antenna array as far as possible reduction array element
Mutual coupling is different, and the present invention is by reducing antenna element spacing and antenna element spacing being optimized, reasonably utilize antenna
Capacitive reactance caused by mutual coupling between unit, the induction reactance between antenna and reflecting plate is counteracted, improves the impedance matching property of antenna,
The broadening bandwidth of operation of antenna, the section of aerial array is reduced, it is achieved thereby that the miniaturization of antenna, lightweight.
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.
It is an advantage of the invention that：The miniaturization close coupling antenna of the present invention, using S type microstrip feed line couple feeds, passes through
Each end detail of S type feed structures is adjusted, preferable matching properties can be obtained.Resonant ring feeding technique is introduced, this is humorous
Shaking electric feedback ring dielectric layer both can be as the bottom plate of S type microstrip feed lines, again can be as the feed structure of radiation patch, so as to change
The matching properties being apt in antenna operating band, obtain wider bandwidth of operation.Employ and reduce antenna element spacing to increase
Add the close coupling technology of mutual coupling intensity, the application of the technology, effectively improve Antenna Impedance Matching, reduce antenna size,
So as to obtain the aerial array of a miniaturization.With the features such as small volume, simple in construction, handling ease, cost is cheap.
Brief description of the drawings
The present invention is further explained with reference to the accompanying drawings and examples.
Fig. 1 is the positive structure schematic of the feed array of face battle array of the present invention.
Fig. 2 is the top surface structure schematic diagram of the feed array of face battle array of the present invention.
Fig. 3 is the bottom surface structure schematic diagram of the feed array of face battle array of the present invention.
Fig. 4 is the overall structure figure of the dual polarized antenna unit of the present invention.
Fig. 5 is the structural representation of the feed element of the present invention.
Fig. 6 is the reflection coefficient of port loss of inventive antenna unit.
Fig. 7 is the interport isolation of inventive antenna unit.
Fig. 8 is horizontal radiation pattern of the inventive antenna unit in 430MHz.
Fig. 9 is elevation radiation patytern of the inventive antenna unit in 430MHz.
Figure 10, Figure 12 are the active standing waves of+45 ° of polarized antenna arrays ports of linear array of the present invention.
Figure 11, Figure 13 are+45 ° of poliarizing antennas of linear array of the present invention 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；
122 S 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 particular implementation that the present invention can be used to implementation
Example.The direction term that the present invention is previously mentioned, such as " on ", " under ", "front", "rear", "left", "right", " top ", " bottom " etc., only it is
With reference to the direction of annexed drawings.Therefore, the direction term used is to illustrate and understand the present invention, and is not used to limit this hair
It is bright.
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.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should be included in the scope of the protection.
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 |
|---|---|---|---|
| CN201710651100.4A CN107785654B (en) | 2017-08-02 | 2017-08-02 | Miniaturized strong coupling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651100.4A CN107785654B (en) | 2017-08-02 | 2017-08-02 | Miniaturized strong coupling antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107785654A true CN107785654A (en) | 2018-03-09 |
| CN107785654B CN107785654B (en) | 2024-03-22 |
Family
ID=61438114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710651100.4A Active CN107785654B (en) | 2017-08-02 | 2017-08-02 | Miniaturized strong coupling antenna |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864617A (en) * | 2021-01-12 | 2021-05-28 | 西安电子科技大学 | 5G millimeter wave dual-polarized broadband wide-angle tightly-coupled array antenna |
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|---|---|---|---|---|
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| US20110001682A1 (en) * | 2009-07-02 | 2011-01-06 | Research In Motion Limited | Compact single feed dual-polarized dual-frequency band microstrip antenna array |
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| CN106848554A (en) * | 2017-01-13 | 2017-06-13 | 南京航空航天大学 | A kind of ultra wide bandwidth angle antenna array based on interdigitated coupled dipole unit |
| CN206313126U (en) * | 2016-12-09 | 2017-07-07 | 桂林电子科技大学 | A kind of ultra-compact Section of Microstrip Antenna Array |
| CN206992301U (en) * | 2017-08-02 | 2018-02-09 | 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 CN201710651100.4A patent/CN107785654B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110001682A1 (en) * | 2009-07-02 | 2011-01-06 | Research In Motion Limited | Compact single feed dual-polarized dual-frequency band microstrip antenna array |
| CN101814658A (en) * | 2009-11-03 | 2010-08-25 | 上海大学 | S/X dual-band dual-polarized shared-aperture micro-strip oscillator and dielectric resonator array antenna |
| CN105846081A (en) * | 2016-04-13 | 2016-08-10 | 电子科技大学 | Dual polarized one-dimensional tightly coupled ultra wide band and wide angle sweep phased array antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864617A (en) * | 2021-01-12 | 2021-05-28 | 西安电子科技大学 | 5G millimeter wave dual-polarized broadband wide-angle tightly-coupled array antenna |
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| CN107785654B (en) | 2024-03-22 |
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