CN107359414A - A kind of circular polarization microstrip antenna - Google Patents
A kind of circular polarization microstrip antenna Download PDFInfo
- Publication number
- CN107359414A CN107359414A CN201710566975.4A CN201710566975A CN107359414A CN 107359414 A CN107359414 A CN 107359414A CN 201710566975 A CN201710566975 A CN 201710566975A CN 107359414 A CN107359414 A CN 107359414A
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- China
- Prior art keywords
- substrate
- circular polarization
- microstrip antenna
- polarization microstrip
- circular
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q15/24—Polarising devices; Polarisation filters
Abstract
The invention discloses a kind of circular polarization microstrip antenna, and it includes：Upper layer medium substrate, interlayer substrate, prepreg, layer dielectric substrate, radiation patch, metal throuth hole post and attachment structure；Wherein, the radiation patch is located at the upper surface of upper layer medium substrate, for realizing circular polarisation performance；The prepreg is between interlayer substrate and layer dielectric substrate, for being bonded the two；The metal throuth hole post penetrates interlayer substrate, corresponding through hole on prepreg and layer dielectric substrate, to form substrate integration wave-guide SIW chambers；The first coupling gap is provided with the interlayer substrate；The second coupling gap and ribbon type feeder line are provided with the layer dielectric substrate；Attachment structure is used to draw feeder line to be connected with external system.The antenna considerably improves Circular polarization ratio bandwidth and gain, and the accuracy of manufacture is high, and processing is low with device cost.
Description
Technical field
The present invention relates to antenna technical field, more particularly to a kind of circular polarization microstrip antenna.
Background technology
Compared to linear polarized antenna, circular polarized antenna has many merits, as having very much in terms of suppressing multi-path jamming and decay
Effect, it can reduce due to faraday's glare effect etc. caused by ionosphere.In addition, circular polarized antenna is between transmitting and reception antenna
Strict directionality is not needed, and any polarization imbalance occurs between transmitting and reception antenna for linear polarized antenna, it may occur that
Polarization mismatch loses phenomenon.
Microstrip antenna is because its section is low, small volume, in light weight, easily conformal, cost is low and readily available circular polarisation etc. is all
More features and be widely used in satellite communication, mobile communication, global navigation satellite, wireless senser, RFID radio frequency identifications,
The systems such as wireless energy transfer.It is a variety of that microstrip antenna realizes that the scheme of circular polarization radiation has, and its central principle is exactly to have encouraged two
Individual orthogonal, same magnitude linear polarised electromagnetic wave, and their phase differs 90 degree.Conventional single feed point microstrip antenna is logical
Cross corner cut or the length-width ratio of fine setting paster in radiation patch and realize circular polarisation, its shortcoming is that axial ratio bandwidth is narrower, general small
In 2%.Double-fed or more feedbacks are then that the excitation required for orthogonal both of which is directly provided by electric bridge/power splitter, this
Mode can realize preferable axle than performance, but its feed network structures is complicated, and also corresponding increase is lost in it, particularly exists
It is more obvious during high frequency.
The content of the invention
An object of the present invention at least that, for how to overcome the above-mentioned problems of the prior art, there is provided a kind of
Circular polarization microstrip antenna, considerably improve Circular polarization ratio bandwidth and gain, and the accuracy of manufacture is high, processing and device cost
It is low.
To achieve these goals, the technical solution adopted by the present invention includes following aspects：
A kind of circular polarization microstrip antenna, it includes：Upper layer medium substrate, interlayer substrate, prepreg, lower floor are situated between
Matter substrate, radiation patch, metal throuth hole post and attachment structure；
Wherein, the radiation patch is located at the upper surface of upper layer medium substrate, for realizing circular polarisation performance；Described half is solid
Change piece between interlayer substrate and layer dielectric substrate, for being bonded the two；The metal throuth hole post penetrates centre
Corresponding through hole on layer medium substrate, prepreg and layer dielectric substrate, to form substrate integration wave-guide SIW chambers；It is described
The first coupling gap is provided with interlayer substrate；The second coupling gap and banding are provided with the layer dielectric substrate
Feed line；Attachment structure is used to draw feeder line to be connected with external system.
Optionally, the SIW chambers are rectangular cavity, rectangular cavity or circular cavity.
Optionally, radiation patch edge relative position is provided with corner minor matters.
Optionally, the radiation patch is circular or square；When the radiation patch is square, on radiation patch side
Corner cut is provided with edge relative angular position.
Optionally, the corner minor matters are annular or circular arc with opening, and circular arc inside radius is 0.1 millimeter
~0.6 millimeter, circular arc outer radius is 0.2 millimeter~1 millimeter, and radian is 180 degree~360 degree.
Optionally, the corner minor matters are rectangle or strip, and width is 0.1 millimeter~0.6 millimeter, length 0.3
Millimeter~2 millimeters.
Optionally, it is nonmetallic logical that one or more is provided with the upper layer medium substrate at radiation patch peripheral location
Hole.
Optionally, the upper surface of the interlayer substrate is provided with the first metal layer, and meta installs in the metal layer
It is equipped with the first coupling gap of " work " font.
Optionally, the upper surface of the layer dielectric substrate is provided with second metal layer, and lower surface is provided with metal base plate,
The second coupling gap and the ribbon type feeder line of rectangle are provided with the centre position of second metal layer；The side in the second coupling gap
Extend to welding via；Ribbon type feeder line includes belt body and connection end, and wherein body is arranged in the second coupling gap, even
Connect end and extend to welding via, rectangle is provided between body and connection end or gradual change shape matches minor matters.
Optionally, the belt body of the ribbon type feeder line is unsymmetric structure.
In summary, by adopting the above-described technical solution, the present invention at least has the advantages that：
By using slot-coupled mode, fed using strip line, coaxial probe output of then transferring, paster uses corner cut
Mode, improve axle ratio characteristic.Assistant corner minor matters are with the addition of in paster, two kinds of orthogonal constant amplitudes, the line pole of 90 ° of phase difference can be encouraged
Change electromagnetic wave, formed circular polarization radiation characteristic, can significantly improve Circular polarization ratio bandwidth, at the same realize good axle suppose to
Figure, and have higher gain；Also, the circular polarized antenna of such scheme has the advantages of section is low, in light weight；It can be used
PCB technology is processed, and makes the advantages of precision is high, cost is low, machining accuracy is high；Simultaneously also have broadband, good axle ratio and
The characteristics such as high-gain.
Brief description of the drawings
Fig. 1 is the structural representation of circular polarization microstrip antenna according to an embodiment of the invention.
Fig. 2 is the structural representation of upper layer medium substrate according to an embodiment of the invention.
Fig. 3 is the structural representation of intermediate medium substrate according to an embodiment of the invention
Fig. 4 is the structural representation of layer dielectric substrate according to an embodiment of the invention
Fig. 5 is the S parameter test result schematic diagram of circular polarization microstrip antenna according to an embodiment of the invention.
Fig. 6 is the axle ratio of circular polarization microstrip antenna according to an embodiment of the invention with frequency change test result signal
Figure.
Fig. 7 is the gain of circular polarization microstrip antenna according to an embodiment of the invention with frequency change test result signal
Figure.
Fig. 8 is direction test result schematic diagram of the circular polarization microstrip antenna according to an embodiment of the invention in 16GHz.
Fig. 9, which is circular polarization microstrip antenna according to an embodiment of the invention, to be suppose in 16GHz axle and shows to changing test result
It is intended to.
Marked in figure：1 upper layer medium substrate；2 intermediate medium substrates；3 prepregs；4 layer dielectric substrates；5 radiation patches
Piece；6 metal throuth holes；7 attachment structures；11 nonmetallic through holes；21 the first metal layers；22 nonmetallic through holes；23 first coupling gaps；
41 second metal layers；42 second coupling gaps；43 ribbon type feeder lines；431 matching minor matters；44 metal base plates；51 corner minor matters；52
Paster perforate；53 paster corner cuts；71 ripple pins.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the present invention will be described in further detail, so that the purpose of the present invention, technology
Scheme and advantage are more clearly understood.It should be appreciated that specific embodiment described herein is only to explain the present invention, and do not have to
It is of the invention in limiting.
Fig. 1 shows the overall structure of circular polarization microstrip antenna according to an embodiment of the invention.The circularly polarization microstrip day
Line includes upper layer medium substrate 1, interlayer substrate 2, prepreg 3, layer dielectric substrate 4, radiation patch 5, metal and led to
Hole post 6 and attachment structure 7；Wherein, the radiation patch 5 is located at the upper surface of upper layer medium substrate 1, for realizing entelechy
Change performance；The prepreg 3 is between interlayer substrate 2 and layer dielectric substrate 4, for being bonded the two；It is described
Metal throuth hole post 6 penetrates interlayer substrate 2, prepreg 3 and layer dielectric substrate 4, to form substrate integration wave-guide
(Substrate integrated waveguide, SIW) chamber；Attachment structure 7 is used to draw feeder line to be connected with external system.
Fig. 2 shows upper layer medium substrate 1 according to an embodiment of the invention, and its upper surface is provided with radiation patch 5.Its
In, radiation patch 5 is circular or rectangle, and it includes corner minor matters 51 of a pair of opposing in the angle position of radiation patch 5,
As shown in Fig. 2 corner minor matters 51 are the annular with opening, left-hand circular polarization ripple and/or the right side are realized by the corner minor matters
Hand circular polarization ripple, can greatly widen the axial ratio bandwidth of circular polarized antenna, and simple in construction, can reduce simultaneously manufacture and material into
This.In other embodiments, corner minor matters 51 can also be the shapes such as circular arc, rectangle, branch shape.When the corner minor matters are
During circular or circular arc, different circular polarization characteristics can be obtained by adjusting arc radius and radian.When the corner
When minor matters are rectangle or branch shape, different circular polarization characteristics are obtained from width by adjustment length.
The centre position of radiation patch 5 and upper layer medium substrate 1 is provided with the paster perforate 52 of hollow structure, for example, can
To form the paster perforate 52 of cylinder with 5 corresponding center position of radiation patch by metal erosion upper layer medium substrate 1.
In a preferred embodiment, radiation patch 5 may further include be disposed adjacent with corner minor matters 51 one or
The multiple paster corner cuts 53 of person, to improve the axle ratio characteristic of antenna.Also, in upper layer medium substrate 1 at the peripheral location of radiation patch 5
One or more nonmetallic through hole 11 (not accommodating metal throuth hole post in through hole) is provided with, it is to reduce medium substrate that it, which is acted on,
Relative dielectric constant, improve impedance bandwidth, and plane wave can be suppressed and transmitted in media as well.But the nonmetallic through hole 11 is not
It is necessary, such as nothing, then it represents that medium is not hollowed out.
Fig. 3 shows interlayer substrate according to an embodiment of the invention, and its upper surface is provided with metal level 21.
The centre position of metal level 21 is provided with the first coupling gap 23 of " work " font (for example, removing metal level by metal erosion method
The metal of 21 correspondences " work " font opening position), to form the slot-coupled layer of interlayer upper surface of base plate.In coupling gap
23 side is provided with welding via 22.One or more is provided with around the first coupling gap 23 and welding via 22
For accommodating the through hole 61 of metal throuth hole post 6, with and reduce its dielectric constant, so as to improve bandwidth；Also, pass through metal throuth hole
Post 6 and corresponding through hole 61 form SIW chambers in media as well so that electromagnetic beam is tied to intracavitary, is radiated by paster, both may be used upwards
Increase bandwidth, can also improve gain.
Fig. 4 shows layer dielectric substrate according to an embodiment of the invention, and its upper surface is provided with metal level 41, following table
Face is provided with metal base plate 44 as metal.The second coupling of rectangle is provided with the centre position of the metal level 41 of upper surface
Gap 42 (for example, the gap of rectangle is formed by metal etch metal level 41) and ribbon type feeder line 43, the second coupling gap 42
Side extend to welding via 22.Ribbon type feeder line 43 includes belt body and connection end, and wherein body is arranged on the second coupling
In joint close gap 42, connection end extends to welding via 22；Rectangle is provided between body and connection end or gradual change shape matches branch
Section 431, for adjusting impedance operator, further to improve gain and front and rear ratio, and vertical transition can be conveniently carried out, reduced laterally
Space, it is easy to form array format, is also just interconnected with other systems.The ripple pin 71 of attachment structure 7 is passed through on layer dielectric substrate
Welding via 22 be connected with the connection end of ribbon type feeder line 43 by welding manner.Second coupling gap on layer dielectric substrate
42 are provided with one or more through hole 6 for being used to accommodate metal throuth hole post 62 with the peripheral location for welding via 22.
In a preferred embodiment, the belt body of ribbon type feeder line 43 is unsymmetric structure, for example, in belt body
Mandrel line secundly, or central axis with respect to the central point of layer dielectric substrate rotate to an angle (for example, 45 degree) use
Rotated to an angle in regulation impedance operator, or the second coupling gap 42 with respect to the central point of layer dielectric substrate (for example, 45
Degree), so as to realize the further regulation of impedance operator, further to improve gain and front and rear ratio.
Fig. 5 to Fig. 9 shows the simulation result schematic diagram of Ku wave band circular polarization microstrip antennas according to embodiments of the present invention.
As shown in figure 5, the input port return loss S11 of Broadband circularly polarized antenna according to embodiments of the present invention is in 13GHz to 18GHz
It is superior to 10dB in frequency range, impedance bandwidth is up to 32.25%.As shown in fig. 6, changed by axle than AR (Axial Ratio) with frequency
Curve can be seen that axle ratio and 3dB be respectively less than in 15.1GHz to 16.1GHz frequency bands, and axial ratio bandwidth is up to 6.4%.As shown in fig. 7,
By gain G ain in 15.1GHz to 16.1GHz frequency bands 6.2dBi is all higher than with gain it can be seen from frequency variation curve.Such as
Shown in Fig. 8, left-hand circular polarization LHCP gain direction is in middle frequency it can be seen from the power radiation pattern at 15.6GHz
3dB beam angles are more than 82 ° at 15.6GHz；Cross polarization is less than 24dB；Front and rear ratio is less than 17dB.As shown in figure 9, by
Axle at 15.6GHz than directional diagram can be seen that axle suppose at middle frequency 15.6GHz 3dB beam angles be more than 120 °.
It is described above, the only detailed description of the specific embodiment of the invention, rather than limitation of the present invention.Correlation technique
The technical staff in field is not in the case where departing from the principle and scope of the present invention, various replacements, modification and the improvement made
It should be included in the scope of the protection.
Claims (10)
1. a kind of circular polarization microstrip antenna, it is characterised in that the circular polarization microstrip antenna includes：Upper layer medium substrate, centre
Layer medium substrate, prepreg, layer dielectric substrate, radiation patch, metal throuth hole post and attachment structure；
Wherein, the radiation patch is located at the upper surface of upper layer medium substrate, for realizing circular polarisation performance；The prepreg
Between interlayer substrate and layer dielectric substrate, for being bonded the two；The metal throuth hole post penetrates intermediate layer Jie
Corresponding through hole on matter substrate, prepreg and layer dielectric substrate, to form substrate integration wave-guide SIW chambers；The centre
The first coupling gap is provided with layer medium substrate；The second coupling gap and banding feed are provided with the layer dielectric substrate
Line；Attachment structure is used to draw feeder line to be connected with external system.
2. circular polarization microstrip antenna according to claim 1, it is characterised in that the SIW chambers be rectangular cavity, rectangular cavity,
Or circular cavity.
3. circular polarization microstrip antenna according to claim 1, it is characterised in that radiation patch edge relative position
It is provided with corner minor matters.
4. circular polarization microstrip antenna according to claim 3, it is characterised in that the radiation patch is circular or side
Shape；When the radiation patch is square, corner cut is provided with radiation patch edge relative angular position.
5. circular polarization microstrip antenna according to claim 3, it is characterised in that the corner minor matters are the circle with opening
Annular or circular arc, and circular arc inside radius is 0.1 millimeter~0.6 millimeter, circular arc outer radius is 0.2 millimeter~1 millimeter, radian
Angle is 180 degree~360 degree.
6. circular polarization microstrip antenna according to claim 3, it is characterised in that the corner minor matters are rectangle or bar
Shape, and width is 0.1 millimeter~0.6 millimeter, length is 0.3 millimeter~2 millimeters.
7. circular polarization microstrip antenna according to claim 1, it is characterised in that radiation patch in the upper layer medium substrate
One or more nonmetallic through hole is provided with peripheral location.
8. circular polarization microstrip antenna according to claim 1, it is characterised in that the upper surface of the interlayer substrate
The first metal layer is provided with, meta installs the first coupling gap for being equipped with " work " font in the metal layer.
9. circular polarization microstrip antenna according to claim 1, it is characterised in that the upper surface of the layer dielectric substrate is set
Second metal layer is equipped with, lower surface is provided with metal base plate, and the second coupling of rectangle is provided with the centre position of second metal layer
Joint close gap and ribbon type feeder line；The side in the second coupling gap extends to welding via；Ribbon type feeder line include belt body and
Connection end, wherein body are arranged in the second coupling gap, and connection end extends to welding via, is set between body and connection end
There are rectangle or gradual change shape matching minor matters.
10. circular polarization microstrip antenna according to claim 9, it is characterised in that the belt body of the ribbon type feeder line
For unsymmetric structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710566975.4A CN107359414A (en) | 2017-07-12 | 2017-07-12 | A kind of circular polarization microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566975.4A CN107359414A (en) | 2017-07-12 | 2017-07-12 | A kind of circular polarization microstrip antenna |
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| CN201710566975.4A Pending CN107359414A (en) | 2017-07-12 | 2017-07-12 | A kind of circular polarization microstrip antenna |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183291A (en) * | 2017-12-25 | 2018-06-19 | 电子科技大学 | A kind of transmission-type multilayer polarization conversion structure based on SIW |
| CN108832288A (en) * | 2018-06-22 | 2018-11-16 | 西安电子科技大学 | Back chamber gap double frequency millimeter wave antenna based on substrate integration wave-guide SIW |
| CN109037966A (en) * | 2018-06-13 | 2018-12-18 | 东南大学 | Using the end-fire multi-beam dual circularly polarized antenna battle array in the stepped gap of coated by dielectric |
| CN109216905A (en) * | 2018-08-03 | 2019-01-15 | 西安电子科技大学 | Double frequency round polarized antenna based on substrate integration wave-guide |
| CN109301470A (en) * | 2018-10-29 | 2019-02-01 | 西安电子科技大学 | The restructural circular polarized antenna of the polarization of low radar cross section |
| CN109524778A (en) * | 2018-10-31 | 2019-03-26 | 广东曼克维通信科技有限公司 | Double-fed circularly polarized antenna |
| CN109659664A (en) * | 2018-12-19 | 2019-04-19 | 航天恒星科技有限公司 | A kind of H slot coupling feed circular polarized antenna |
| CN109713437A (en) * | 2018-12-05 | 2019-05-03 | 北京遥测技术研究所 | A kind of wide-band high gain circular polarization microstrip antenna |
| CN109860989A (en) * | 2019-04-02 | 2019-06-07 | 云南大学 | Circular polarisation slot antenna based on integral substrate gap waveguide |
| CN110277641A (en) * | 2019-06-28 | 2019-09-24 | 中国航空工业集团公司雷华电子技术研究所 | A kind of structure for realizing wideband wide scan and the microband antenna unit with it |
| CN110783704A (en) * | 2019-05-14 | 2020-02-11 | 云南大学 | Dual-via-hole probe feed integrated substrate gap waveguide circularly polarized antenna |
| CN110854528A (en) * | 2019-05-14 | 2020-02-28 | 云南大学 | Single-via-hole probe feed integrated substrate gap waveguide circularly polarized antenna |
| CN114300839A (en) * | 2022-01-17 | 2022-04-08 | 云南大学 | Integrated substrate gap waveguide broadband antenna |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183291A (en) * | 2017-12-25 | 2018-06-19 | 电子科技大学 | A kind of transmission-type multilayer polarization conversion structure based on SIW |
| CN109037966A (en) * | 2018-06-13 | 2018-12-18 | 东南大学 | Using the end-fire multi-beam dual circularly polarized antenna battle array in the stepped gap of coated by dielectric |
| CN108832288A (en) * | 2018-06-22 | 2018-11-16 | 西安电子科技大学 | Back chamber gap double frequency millimeter wave antenna based on substrate integration wave-guide SIW |
| CN108832288B (en) * | 2018-06-22 | 2021-04-27 | 西安电子科技大学 | Back cavity gap dual-frequency millimeter wave antenna based on Substrate Integrated Waveguide (SIW) |
| CN109216905B (en) * | 2018-08-03 | 2019-10-08 | 西安电子科技大学 | Double frequency round polarized antenna based on substrate integration wave-guide |
| CN109216905A (en) * | 2018-08-03 | 2019-01-15 | 西安电子科技大学 | Double frequency round polarized antenna based on substrate integration wave-guide |
| CN109301470A (en) * | 2018-10-29 | 2019-02-01 | 西安电子科技大学 | The restructural circular polarized antenna of the polarization of low radar cross section |
| CN109301470B (en) * | 2018-10-29 | 2020-04-14 | 西安电子科技大学 | Polarization reconfigurable circularly polarized antenna with low radar cross section |
| CN109524778A (en) * | 2018-10-31 | 2019-03-26 | 广东曼克维通信科技有限公司 | Double-fed circularly polarized antenna |
| CN109713437A (en) * | 2018-12-05 | 2019-05-03 | 北京遥测技术研究所 | A kind of wide-band high gain circular polarization microstrip antenna |
| CN109659664B (en) * | 2018-12-19 | 2020-12-04 | 航天恒星科技有限公司 | H-slot coupling feed circularly polarized antenna |
| CN109659664A (en) * | 2018-12-19 | 2019-04-19 | 航天恒星科技有限公司 | A kind of H slot coupling feed circular polarized antenna |
| CN109860989A (en) * | 2019-04-02 | 2019-06-07 | 云南大学 | Circular polarisation slot antenna based on integral substrate gap waveguide |
| CN110783704A (en) * | 2019-05-14 | 2020-02-11 | 云南大学 | Dual-via-hole probe feed integrated substrate gap waveguide circularly polarized antenna |
| CN110854528A (en) * | 2019-05-14 | 2020-02-28 | 云南大学 | Single-via-hole probe feed integrated substrate gap waveguide circularly polarized antenna |
| CN110783704B (en) * | 2019-05-14 | 2024-01-19 | 云南大学 | Double-via probe feed integrated substrate gap waveguide circularly polarized antenna |
| CN110854528B (en) * | 2019-05-14 | 2024-01-26 | 云南大学 | Single-via probe feed integrated substrate gap waveguide circularly polarized antenna |
| CN110277641A (en) * | 2019-06-28 | 2019-09-24 | 中国航空工业集团公司雷华电子技术研究所 | A kind of structure for realizing wideband wide scan and the microband antenna unit with it |
| CN110277641B (en) * | 2019-06-28 | 2021-04-20 | 中国航空工业集团公司雷华电子技术研究所 | Structure for realizing broadband wide-angle scanning and microstrip antenna unit with same |
| CN114300839A (en) * | 2022-01-17 | 2022-04-08 | 云南大学 | Integrated substrate gap waveguide broadband antenna |
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