CN105356049B - A kind of direct connection Double-polarization micro-strip array antenna - Google Patents
A kind of direct connection Double-polarization micro-strip array antenna Download PDFInfo
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- CN105356049B CN105356049B CN201510770582.6A CN201510770582A CN105356049B CN 105356049 B CN105356049 B CN 105356049B CN 201510770582 A CN201510770582 A CN 201510770582A CN 105356049 B CN105356049 B CN 105356049B
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Abstract
It can direct connection Double-polarization micro-strip array antenna the invention discloses one kind, it is characterized in that, the antenna pcb board is at least three layers, the antenna pcb board first layer radiating element, the antenna pcb board second layer is electromagnetic coupling hole, the pcb board third layer is feeder line structure, and the pcb board third layer is additionally provided with the SMP radio-frequency joint pad of center co-planar.This antenna is transferred to antenna entrance by SMP radio-frequency joint pad connector by radiofrequency signal and propagates, signal reaches the radiating element unit that signal is passed to below electromagnetic coupling hole by electromagnetic coupling hole first layer, feeding point is located between the radiating element after translation, SMP radio-frequency joint pad, which does not need radio-frequency cable, to be directly connected to, it efficiently solves dual-polarized high degree of isolation and reduces system noise factor, improve the performance of system.
Description
Technical field
The present invention relates to microwave electromagnetic field field more particularly to a kind of direct connection Double-polarization micro-strip array antennas.
Background technique
In conventional microstrip Antenna Design, two polarized feeding points are located between two radiating elements, are unfavorable for dual polarization
High-isolation.And the prior art cannot make two polarization prolong feeder line direction and feed side by side, and transceiver is caused not lead to directly
SMP connector is crossed to connect, and the connecting line between receiver and antenna directly increases system noise factor.
Feeding point refers to the position of aerial signal access feeder line, i.e., the radio-frequency joint pad in technical solution of the present invention.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of direct connection Double-polarization micro-strip array antenna, poles
The big noise coefficient for reducing system, lifting system performance.
The technical solution adopted by the present invention to solve the technical problems are as follows:
A kind of direct connection Double-polarization micro-strip array antenna, which is characterized in that including antenna pcb board, the antenna pcb board is at least
Including three layers, the first layer of the antenna pcb board is radiating element, and the second layer is electromagnetic coupling hole, and third layer is feeder line structure,
The feeder line structure include the radio-frequency joint pad of center co-planar, feed power splitter corresponding with radio-frequency joint pad and with feed
The feeder line of power splitter connection, radiofrequency signal are transferred to feed power splitter by radio-frequency joint pad and are propagated by feeder line, reached
Radiofrequency signal is passed to the radiating element of first layer by electromagnetic coupling hole, the electromagnetic coupling hole is below electromagnetic coupling hole
Generate two orthogonal H-type electromagnetic coupling holes of horizontal polarization and vertical polarization.
As an improvement of the above technical solution, the antenna pcb board is additionally provided with the 4th layer, and described 4th layer is and first
The corresponding reflector of layer.
As an improvement of the above technical solution, the 4th layer of the antenna pcb board is additionally provided with medium between third layer, institute
Giving an account of matter is rigid foam.
As an improvement of the above technical solution, the radiating element of every array antenna is at least 4, the level of array and vertical
Straight spacing is 1/4X-X wavelength, and the X indicates wavelength value.
As an improvement of the above technical solution, two radio-frequency joint pad center lines of every array antenna and feeder line direction are flat
Row.
As an improvement of the above technical solution, the radio-frequency joint pad includes for horizontal polarization radio-frequency joint pad and hanging down
Straight polarised radiofrequency connector pad, the radio-frequency joint pad feed power splitter and vertical pole with corresponding horizontal polarization by conducting wire
Change feed power splitter connection.
As an improvement of the above technical solution, at least one is set among horizontal polarization feeding point and vertical polarization feeding point
Radiating element.
As an improvement of the above technical solution, the feeder line of described horizontal polarization feed power splitter or so two-way is symmetrical junction
Structure.
As an improvement of the above technical solution, the feeder line Length discrepancy of described vertical polarization feed power splitter or so two-way, phase
Potential difference is 180 °.
The beneficial effects of the present invention are as follows:
A kind of direct connection Double-polarization micro-strip array antenna of the present invention, radiofrequency signal are passed by the radio-frequency joint pad of center co-planar
It is defeated to be propagated to feed power splitter and by feeder line, it reaches and is passed to radiofrequency signal by electromagnetic coupling hole below electromagnetic coupling hole
The feed dot center of the radiating element of first layer, vertical polarization and horizontal polarization is conllinear, and radio-frequency joint pad does not need radio frequency electrical
Cable can directly be connect with transceiver, efficiently solved dual-polarized high degree of isolation and reduced system noise factor, improve
The performance of system.
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment the invention will be further described, in which:
Fig. 1 is the antenna pcb board operation principle schematic diagram of the embodiment of the present invention
Fig. 2 is the antenna pcb board first layer radiative unit structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the second schematic diagram of a layer structure of antenna pcb board of the embodiment of the present invention；
Fig. 4 is the antenna pcb board third layer feeder line structure schematic diagram of the embodiment of the present invention；
Fig. 5 is the enlarged diagram in the electromagnetic coupling hole of the embodiment of the present invention；
Fig. 6 is the SMP pad connector and corresponding feed power splitter enlarged diagram of the embodiment of the present invention.
1 is radiating element；2 be electromagnetic coupling hole；3 be the feed point power splitter of one of polarization horizontal polarization；4 be horizontal polarization
Feeder line between unit；5 be the radio-frequency joint pad of the direct-connected PCB of horizontal polarization SMP；6 be vertical polarization electromagnetic coupling hole；7 be vertical
Feeder line between polarisation unit；8 be the road vertical polarization feed point Gong Fenzhi one；9 be the road vertical polarization feed point Gong Fenzhi two；10 be vertical pole
Change the radio-frequency joint pad of the direct-connected PCB of SMP.
Specific embodiment
Referring to Fig. 1,2,3 and Fig. 4, a kind of direct connection Double-polarization micro-strip array antenna of the invention, which is characterized in that the day
Line pcb board includes at least three layers, and the first layer of the antenna pcb board is radiating element 1, and the second layer is electromagnetic coupling hole 2 and 6,
Third layer is feeder line structure, and the feeder line structure includes the SMP radio-frequency joint pad 5 and 10 and SMP radio-frequency joint of center co-planar
The feeder line 4 and 7 pad 5 and 10 corresponding feed power splitter and connect with feed power splitter 3, radiofrequency signal is connect by SMP radio frequency
Head pad connector 5 and 10 is transferred to feed power splitter 3 and is propagated by feeder line, reaches and passes through electromagnetism below electromagnetic coupling hole 2 and 6
Radiofrequency signal is passed to the radiating element 1 of first layer by coupling aperture.
As an improvement of the above technical solution, the antenna pcb board is additionally provided with the 4th layer to optimal embodiment, and described
Four layers are reflector corresponding with the first floor.The 4th layer of antenna pcb board between third layer medium be low-loss rigid foam.
The radiating element of every array antenna is at least 4, and the horizontal and vertical spacing of array is 1/4X-X wavelength.This hair
Bright radiation cell array is 5 × 32, and array horizontal direction and vertical interval are about 1/2X wavelength, about 1.7cm.With feedback in Fig. 2
Line direction is vertical direction, and the direction vertical with feeder line is horizontal direction, this coordinate is subject in direction in the present invention.
With further reference to Fig. 5, the electromagnetic coupling hole 2 and 6 is to generate two of horizontal polarization and vertical polarization mutually to hang down
Straight H-type electromagnetic coupling hole.The specific embodiment of the invention is respectively horizontal polarization electromagnetic coupling hole 2 and vertical polarization electromagnetic coupling
Hole 6.
With further reference to Fig. 6, the present invention is dual polarized antenna, must be there are two radio frequency on the antenna pcb board of every array antenna
Two radio-frequency joint pads 5 and 10 of connector pad 5 and 10, every array antenna are parallel with the feeder line.The SMP radio-frequency joint weldering
Disk is divided into horizontal polarization SMP radio-frequency joint pad 5 and vertical polarization SMP radio-frequency joint pad 10, by conducting wire with it is corresponding
Horizontal polarization feeds power splitter and vertical polarization feed power splitter and connects, and not needing radio-frequency cable can directly and transceiver
Connection.
The horizontal polarization feeding point and vertical polarization feed dot center are conllinear, at least one radiating element 1 is arranged in centre.
The horizontal polarization feed power splitter or so two-way feeder line 4 and 7 is symmetrical.The vertical polarization feed power splitter or so two-way feeder line
Length discrepancy, phase difference are 180 °.The feeder line 4 and 7 is all by electromagnetic coupling hole central lower, in order to reduce to surface current
And the influence of single radiating element impedance, the irregular structure region of feeder line and feed point should be as far as possible far from coupling aperture.
Horizontal polarization radio signal transmission working principle is that, when system transmits horizontal polarization signals, radiofrequency signal passes through
SMP radio-frequency joint pad 5, is transferred to horizontally-polarized antenna entrance, and the feed power splitter of horizontal polarization divides its constant amplitude equiphase
At two branches of left and right, and by the impedance matching of U-shaped bending realization and antenna, the part electromagnetic energy below electromagnetic coupling hole is reached
Amount will will be passed to upper layer radiating element 1 by coupling aperture, and feeder line 4 is between dump energy will persistently pass to unit module
Subsequent cell provides energy.The (i.e. on radiating element following of corresponding horizontal polarization will be excited by being coupled to the energy on radiating element 1
Edge) EMR electromagnetic resonance, so that electromagnetic energy to be converted to the horizontal polarization electromagnetic field freely transmitted in space.
Vertical polarization radio signal transmission working principle is that radiofrequency signal is transferred to vertical by SMP radio-frequency joint pad 10
Straight poliarizing antenna entrance, the feed point power splitter of vertical polarization divide equally signal energy, and snakelike Length discrepancy designs so that left and right branch
Signal is effectively ensured in the just superimposed of space in road phase difference 180 degree.Reach the part electromagnetic energy of 6 lower section of electromagnetic coupling hole
Upper layer radiating element 1 will be will be passed to by coupling aperture, and dump energy will be passed to persistently after feeder line 7 between unit module is
Continuous unit provides energy.It is coupled to (the i.e. radiating element left and right side that the energy on radiating element 1 will excite corresponding vertical polarization
Edge) EMR electromagnetic resonance, so that electromagnetic energy to be converted to the vertical polarization electromagnetic field freely transmitted in space.
The above, only better embodiment of the invention, but the present invention is not limited to above-described embodiments, as long as
The technical effect of the present invention is achieved by any identical or similar means for it, all should belong to protection scope of the present invention.
Claims (8)
1. a kind of direct connection Double-polarization micro-strip array antenna, which is characterized in that including antenna pcb board, the antenna pcb board is at least wrapped
Three layers are included, the first layer of the antenna pcb board is radiating element, and the second layer is electromagnetic coupling hole, and third layer is feeder line structure, institute
State feeder line structure include coplanar radio-frequency joint pad, feed power splitter corresponding with radio-frequency joint pad and with feed power splitter
The feeder line of connection, the only two radio-frequency joint pad center lines of every array antenna and feeder line are flat in the extending direction of the array antenna
Row, radiofrequency signal are transferred to feed power splitter by radio-frequency joint pad and are propagated by feeder line, reached below electromagnetic coupling hole
Radiofrequency signal passes to the radiating element of first layer by electromagnetic coupling hole, the electromagnetic coupling hole be generate horizontal polarization and
Two orthogonal H-type electromagnetic coupling holes of vertical polarization.
2. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1, which is characterized in that the antenna pcb board
It is additionally provided with the 4th layer, described 4th layer is reflector corresponding with first layer.
3. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1 or 2, which is characterized in that the antenna PCB
The 4th layer of plate is additionally provided with medium between third layer, and the medium is rigid foam.
4. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1, which is characterized in that every array antenna
Radiating element is at least 4, and the horizontal and vertical spacing of the radiation cell array is (X/4)-X wavelength, and the X is for indicating
The value of wavelength.
5. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1, which is characterized in that the radio-frequency joint weldering
Disk include be horizontal polarization radio-frequency joint pad and vertical polarization radio-frequency joint pad, the radio-frequency joint pad by conducting wire with
Corresponding horizontal polarization feed power splitter is connected with vertical polarization feed power splitter.
6. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1 or 5, which is characterized in that horizontal polarization is penetrated
At least one radiating element is set among frequency connector pad and vertical polarization radio-frequency joint pad.
7. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1 or 5, which is characterized in that the horizontal pole
The feeder line for changing feed power splitter or so two-way is symmetrical structure.
8. a kind of direct connection Double-polarization micro-strip array antenna according to claim 1 or 5, which is characterized in that the vertical pole
Change the feeder line Length discrepancy of feed power splitter or so two-way, phase difference is 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770582.6A CN105356049B (en) | 2015-11-11 | 2015-11-11 | A kind of direct connection Double-polarization micro-strip array antenna |
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| CN201510770582.6A CN105356049B (en) | 2015-11-11 | 2015-11-11 | A kind of direct connection Double-polarization micro-strip array antenna |
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| CN105356049A CN105356049A (en) | 2016-02-24 |
| CN105356049B true CN105356049B (en) | 2019-07-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417971B (en) * | 2018-03-26 | 2024-06-21 | 广东纳睿雷达科技股份有限公司 | Dual polarized antenna array and dual polarized phased array antenna |
| CN108461929B (en) * | 2018-03-28 | 2024-03-15 | 广东纳睿雷达科技股份有限公司 | Dual polarized antenna array and dual polarized phased array antenna |
| TWI698052B (en) * | 2018-11-23 | 2020-07-01 | 耀登科技股份有限公司 | High-frequency antenna device and antenna array thereof |
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| CN203326092U (en) * | 2013-06-26 | 2013-12-04 | 湖南威铭能源科技有限公司 | Connecting assembly for PCB antenna and circuit board |
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| CN102904022A (en) * | 2011-09-09 | 2013-01-30 | 香港应用科技研究院有限公司 | Microstrip Slot-fed Patch Antenna Elements with Partially Symmetrical Coupling |
| CN103606743A (en) * | 2013-10-25 | 2014-02-26 | 深圳市摩天射频技术有限公司 | Circularly-polarized wideband antenna |
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Address after: No.2 Gangle Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080 Patentee after: Guangdong Narui Radar Technology Co.,Ltd. Address before: 519080 unit n, room 607, 6th floor, main building, No.10, Keji 1st Road, Gangwan Avenue, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee before: Zhuhai Naruida Technology Co.,Ltd. |
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