CN109449586A - A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane - Google Patents
A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane Download PDFInfo
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- CN109449586A CN109449586A CN201811328915.XA CN201811328915A CN109449586A CN 109449586 A CN109449586 A CN 109449586A CN 201811328915 A CN201811328915 A CN 201811328915A CN 109449586 A CN109449586 A CN 109449586A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
- H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
-
- 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
- H01Q9/0464—Annular ring patch
Abstract
A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane, belongs to antenna technical field.It is mutually perpendicular on the side of left and right two of four annulus patches (2,4,7,9) that the copper membrane surface of Rectangular Enclosure with Participating Media substrate is provided with concentric structure and is separated by groove, annulus patch；It is disposed with identical 3 rectangular patches of size and 1 load rectangular patch in the trench, annulus patch (2,4,7,9) constitutes antenna element；Annulus patch (4) and load rectangular patch constitute feed port；Annular curved stub is additionally provided with as earth plate on copper membrane surface, is concentric structure with annulus patch, the side of left and right two is mutually perpendicular to；The bottom edge of its x-axis direction is aligned with the middle line in the y-axis direction of load rectangular patch.The conversion of inventive antenna left-handed and right-handed circular polarization radiated wave easy to accomplish, return loss with higher and impedance bandwidth is wider have broadband circle polarized characteristic.
Description
Technical field
The invention belongs to antenna technical fields, and in particular to circularly polarization microstrip patch day used in a kind of satellite navigation
Line, more particularly to a kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane.
Background technique
Circular polarisation (CP) microstrip antenna (CPMA) has in satellite navigation, radio frequency identification (RFID) and mobile communication field
There is the advantage of low section, has been a hot spot of research.In high speed airborne communication, CPMA is more preferably selecting for conformal design；?
In the use of satellite communication antena, circular polarization microstrip antenna can then provide versatility more better than linearly polarized antenna.In addition,
Because the excitation of 90 ° of phase difference biorthogonal modes is to be difficult to realize circular polarisation in very wide frequency range, have single
The design of the Broadband Circular Polarization Microstrip Antenna of feeding point and low resonant frequency is just very challenging.
GPS (Global Positioning System) since eighties of last century the seventies, and Russia later
GLONASSS (Global Navigation Satellite System), Europe GALILEO and China Beidou lead
Boat system has all unanimously used circular polarisation electromagnetic wave to transmit signal.Circular polarized antenna is also widely used in field of broadcast televisions,
In terms of reducing ghost image, Cochannel interference and adjacent frequency, all it played an important role.Circular polarisation electromagnetic wave can be effective
Reduce the influence of multipath reflection, inhibit depolarisation effect caused by the weathers such as misty rain.Therefore, circular polarized antenna can better ensure that
Communication link is unimpeded, in modern many communication systems, needs circular polarized antenna as its transmitter and receiver.
The method that microstrip antenna realizes circular polarisation work can substantially be summarized as three classes: single-point feedback perturbation method, multiple spot is just
Hand over feeding method and multivariate method.But for single-point feedback, when size is smaller, the beamwidth of antenna is obviously poor.
(Zhang Qianyue, Wang Guangming, the Li Xingcheng such as Zhang Qianyue；A kind of Circular polarized omni-directional microstrip antenna, modern electronic technology,
2007 (5): 101-102) a kind of circular polarization microstrip antenna is devised, but it is to utilize double layer substrate.Wang Yufeng etc. (Wang Yufeng,
Guo Yuchun, Xu Jianmin；The design of novel miniaturization annular gap circular polarisation printed antenna, communication countermeasure, 2010 (03): 56-59)
A kind of annular gap circular polarized antenna is reported, but its radiation field is not generated by gap ring.The design antenna is in single layer substrate
On, circular polarization radiation field is directly produced using ring structure, has the advantages that realization facilitates tolerance larger.
Summary of the invention
The purpose of the present invention is to provide a kind of compact-sized, moderate dimensions, relative impedances bandwidth up to 20%, relative axle
There is the circle for being bent stub ground plane up to 8.7%, center frequency point axis is more of good performance than the circular polarisation for 1.2dB than bandwidth
Polarised annular microstrip antenna.In application, the Rectangular Enclosure with Participating Media substrate-parallel of the antenna is placed in horizontal plane.
Referring to Fig. 1, shown Rectangular Enclosure with Participating Media substrate 1 is the high performance microwave medium substrate that single side covers copper, dielectric constant 2.0
~2.5, be 40~60mm, with a thickness of 0.5~2mm the length is 80~100mm, width, copper membrane with a thickness of 0.02~
0.05mm。
On the copper membrane surface of Rectangular Enclosure with Participating Media substrate 1, setting is there are four annulus patch, be denoted as respectively the first annulus patch 2,
Second annulus patch 4, third annulus patch 7 and the 4th annulus patch 9；Four annulus patches be concentric structure and to each other by
Groove with one fixed width separates；The outer ring radius of annulus patch is 28.8~30.8mm, and inner ring radius is 20~22mm, often
The side of left and right two of a annulus patch is mutually perpendicular to；Between first annulus patch 2 and the second annulus patch 4, the first annulus patch 2
Groove is of same size between the 4th annulus patch 9, between third annulus patch 7 and the 4th annulus patch 9, be 2.5~
3.5mm；Identical first rectangular patch 3 of size, the second rectangular patch 8 and third rectangle are disposed in these three grooves
Two long sides of patch 10, rectangular patch connect with neighbouring annulus patch respectively, keep annulus patch mutual by rectangular patch
Connection；The length of rectangular patch is 2.3~3.3mm, and width is equal to the width of groove；First annulus patch 2, the second annulus patch
4, third annulus patch 7 and the 4th annulus patch 9 constitute antenna element；
Load rectangular patch 6, width 2.9 are provided in the groove of the second annulus patch 4 and third annulus patch 7
~3.9mm, length are 5.6~6.6mm；One long side of its X-direction between the second annulus patch 4 at a distance from for 4.5~
5.5mm, another long side of X-direction between third annulus patch 7 at a distance from be 7.3~8.3mm；Load rectangular patch 6
X-direction midpoint in annulus patch at the average value position of outer radius；Third annulus patch 4 and load 6 structure of rectangular patch
At feed port.
Annular curved stub 5 is additionally provided with as earth plate, annular curved on the copper membrane surface of Rectangular Enclosure with Participating Media substrate 1
Stub 5 is concentric structure with four annulus patches in the outside in four surrounded regions of annulus patch；Outer ring radius is
38~42mm, inner ring radius are 33.8~37.8mm, and a length of 9~11mm of outer arc, the side of left and right two is mutually perpendicular to；Its X-axis side
To bottom edge be aligned with the middle line in y-axis direction of load rectangular patch 6.
The circular ring shape patch, can due to using patch loading structure and using bending stub ground connection feed
With the bandwidth of operation of effectively extended antenna.
The present invention realizes circular polarization radiation characteristic as antenna element using annulus paster structure, compared with prior art
Compared with the present invention has the advantages that following prominent and significant effect: compact-sized, easy to accomplish left-handed and right-handed circular polarization radiation
The conversion of wave, return loss with higher and impedance bandwidth is wider, it may have broadband circle polarized characteristic.
Detailed description of the invention
Fig. 1 is the Rectangular Enclosure with Participating Media upper surface of base plate overlooking structure diagram of the embodiment of the present invention.
Fig. 2 is the antenna impedance frequency characteristic curve diagram measured by vector network analyzer.In Fig. 2, abscissa is frequency
Rate/GHz, ordinate are reflection coefficient/dB.
Fig. 3 be the antenna that is measured in SATIMO Starlab system in 2.4GHz when vertical plane on polarization diagram, adopt in figure
With polar coordinates, vertical scale line unit is dB.
Fig. 4 be the antenna that is measured in SATIMO Starlab system in 2.4GHz when horizontal plane on polarization diagram, adopt in figure
With polar coordinates, vertical scale line unit is dB.
Specific embodiment
Embodiment 1:
Referring to Fig. 1, shown Rectangular Enclosure with Participating Media substrate 1 is the high performance microwave medium substrate that single side covers copper, and dielectric constant is
2.2, a length of 90mm, width 50mm, thickness 1mm.Copper membrane with a thickness of 0.035mm.
On the copper membrane surface of Rectangular Enclosure with Participating Media substrate 1, setting is there are four annulus patch, be denoted as respectively the first annulus patch 2,
Second annulus patch 4, third annulus patch 7 and the 4th annulus patch 9；Four annulus patches be concentric structure and to each other by
Groove with one fixed width separates；The outer ring radius of annulus patch is 29.8mm, and inner ring radius is 21mm, each annulus patch
The side of left and right two be mutually perpendicular to；Between first annulus patch 2 and the second annulus patch 4, the first annulus patch 2 and the 4th annulus
Groove is of same size between patch 9, between third annulus patch 7 and the 4th annulus patch 9, is 3mm；In these three grooves
It is provided with identical first rectangular patch 3 of size, the second rectangular patch 8 and third rectangular patch 10, two of rectangular patch are long
Side connects with neighbouring annulus patch respectively, and annulus patch is made to be interconnected by rectangular patch；The length of rectangular patch is
2.8mm, width are equal to the width of groove；First annulus patch 2, the second annulus patch 4, third annulus patch 7 and the 4th annulus
Patch 9 constitutes antenna element；
Load rectangular patch 6 is provided in the groove of the second annulus patch 4 and third annulus patch 7, width is
3.4mm, length 6.1mm；One long side of its X-direction between the second annulus patch 4 at a distance from be 5.0mm, X-direction
Another long side between third annulus patch 7 at a distance from be 7.8mm；It is pasted in annulus at the X-direction midpoint for loading rectangular patch 6
In piece at the average value position of outer radius；Third annulus patch 4 and load rectangular patch 6 constitute feed port.
It is additionally provided with annular curved stub 5 on the copper membrane surface of Rectangular Enclosure with Participating Media substrate 1, annular curved stub 5 exists
The outside in four surrounded regions of annulus patch is concentric structure with four annulus patches；Outer ring radius is 40mm, inner ring
Radius is 35.8mm, and a length of 10mm of outer arc, the side of left and right two is mutually perpendicular to；The bottom edge of its X-direction and load rectangular patch 6
Y-axis direction middle line alignment.
Fig. 2 is antenna impedance frequency characteristic curve diagram, and as shown in Figure 2, the impedance bandwidth range of the antenna -10dB is 2.2
~2.68GHz (relative bandwidth 20%).
Fig. 3 is polarization direction figure of the antenna in 2.4GHz on vertical plane, and as shown in Figure 3, which is right-handed circular polarization,
Right-handed circular polarization gain when curve a is 2.4GHz, curve b are 2.4GHz circle left-handed polarization gains.
Fig. 4 is polarization direction figure of the antenna in 2.4GHz on horizontal plane, and as shown in Figure 4, which is dextrorotation entelechy
Change, curve a is 2.4GHz right-handed circular polarization gain, and curve b is 2.4GHz left-hand circular polarization gain.
Claims (2)
1. a kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane, it is characterised in that:
On the copper membrane surface of Rectangular Enclosure with Participating Media substrate (1), setting is there are four annulus patch, be denoted as respectively the first annulus patch (2),
Second annulus patch (4), third annulus patch (7) and the 4th annulus patch (9)；Four annulus patches be concentric structure and that
It is separated by the groove with one fixed width around here, the side of left and right two of each annulus patch is mutually perpendicular to；First annulus patch (2)
Between the second annulus patch (4), between the first annulus patch (2) and the 4th annulus patch (9), third annulus patch (7) with
Groove is of same size between 4th annulus patch (9)；Identical first rectangle of size is disposed in these three grooves
Patch (3), the second rectangular patch (8) and third rectangular patch (10), two long sides of each rectangular patch respectively with it is neighbouring
Annulus patch connects, and annulus patch is made to be interconnected by rectangular patch；The width of rectangular patch is equal to the width of groove；First
Annulus patch (2), the second annulus patch (4), third annulus patch (7) and the 4th annulus patch (9) constitute antenna element；
Load rectangular patch (6), X-direction are provided in the groove of the second annulus patch (4) and third annulus patch (7)
Midpoint is in annulus patch at the average value position of outer radius；Third annulus patch (4) and load rectangular patch (6) constitute feed
Port；
Annular curved stub (5) are provided with as earth plate on the copper membrane surface of Rectangular Enclosure with Participating Media substrate (1), and annular curved is short
Transversal (5) is concentric structure, left and right two with four annulus patches in the outside in four surrounded regions of annulus patch
While being mutually perpendicular to；The bottom edge of its X-direction is aligned with the middle line in the y-axis direction of load rectangular patch (6).
2. a kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane as described in claim 1, feature exist
In: the dielectric constant of Rectangular Enclosure with Participating Media substrate (1) is 2.0~2.5, is 40~60mm, thickness the length is 80~100mm, width
For 0.5~2mm, copper membrane with a thickness of 0.02~0.05mm；The outer ring radius of annulus patch is 28.8~30.8mm, inner ring half
Diameter is 20~22mm, and the width of groove is 2.5~3.5mm between annulus patch；The length of rectangular patch is 2.3~3.3mm, width
Equal to the width of groove；The width for loading rectangular patch (6) is 2.9~3.9mm, and length is 5.6~6.6mm；Its X-direction
One long side between the second annulus patch (4) at a distance from be 4.5~5.5mm, another long side of X-direction and third annulus
Distance between patch (7) is 7.3~8.3mm；The outer ring radius of annular curved stub (5) is 38~42mm, and inner ring radius is
33.8~37.8mm, a length of 9~11mm of outer arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328915.XA CN109449586B (en) | 2018-11-09 | 2018-11-09 | Circular polarization annular microstrip antenna with bent stub ground plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328915.XA CN109449586B (en) | 2018-11-09 | 2018-11-09 | Circular polarization annular microstrip antenna with bent stub ground plane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109449586A true CN109449586A (en) | 2019-03-08 |
| CN109449586B CN109449586B (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811328915.XA Active CN109449586B (en) | 2018-11-09 | 2018-11-09 | Circular polarization annular microstrip antenna with bent stub ground plane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI239119B (en) * | 2004-07-15 | 2005-09-01 | Dau-Chyrh Chang | Wide axial ratio bandwidth left-hand circular polarization stack-type microstrip antenna |
| US7006043B1 (en) * | 2004-01-16 | 2006-02-28 | The United States Of America, As Represented By The Secretary Of The Army | Wideband circularly polarized single layer compact microstrip antenna |
| EP1445831B1 (en) * | 2001-11-16 | 2007-08-08 | Nippon Antena Kabushiki Kaisha | Composite antenna |
| US7532164B1 (en) * | 2007-05-16 | 2009-05-12 | Motorola, Inc. | Circular polarized antenna |
| CN104659474A (en) * | 2015-01-07 | 2015-05-27 | 西北工业大学 | Notched jade ring type circular polarized antenna |
| CN106785408A (en) * | 2017-01-24 | 2017-05-31 | 桂林电子科技大学 | Broadband low section omnidirectional circular-polarized antenna |
| CN207368238U (en) * | 2017-10-13 | 2018-05-15 | 华南理工大学 | A kind of high-gain millimeter wave circular polarised array antenna |
| CN108232432A (en) * | 2017-12-05 | 2018-06-29 | 华南理工大学 | A kind of single feedback broadband low section circular polarization microstrip antenna |
| CN207611866U (en) * | 2017-12-05 | 2018-07-13 | 华南理工大学 | A kind of single feedback broadband low section circular polarization microstrip antenna |
| CN108448244A (en) * | 2018-05-04 | 2018-08-24 | 南京航空航天大学 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
-
2018
- 2018-11-09 CN CN201811328915.XA patent/CN109449586B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1445831B1 (en) * | 2001-11-16 | 2007-08-08 | Nippon Antena Kabushiki Kaisha | Composite antenna |
| US7006043B1 (en) * | 2004-01-16 | 2006-02-28 | The United States Of America, As Represented By The Secretary Of The Army | Wideband circularly polarized single layer compact microstrip antenna |
| TWI239119B (en) * | 2004-07-15 | 2005-09-01 | Dau-Chyrh Chang | Wide axial ratio bandwidth left-hand circular polarization stack-type microstrip antenna |
| US7532164B1 (en) * | 2007-05-16 | 2009-05-12 | Motorola, Inc. | Circular polarized antenna |
| CN104659474A (en) * | 2015-01-07 | 2015-05-27 | 西北工业大学 | Notched jade ring type circular polarized antenna |
| CN106785408A (en) * | 2017-01-24 | 2017-05-31 | 桂林电子科技大学 | Broadband low section omnidirectional circular-polarized antenna |
| CN207368238U (en) * | 2017-10-13 | 2018-05-15 | 华南理工大学 | A kind of high-gain millimeter wave circular polarised array antenna |
| CN108232432A (en) * | 2017-12-05 | 2018-06-29 | 华南理工大学 | A kind of single feedback broadband low section circular polarization microstrip antenna |
| CN207611866U (en) * | 2017-12-05 | 2018-07-13 | 华南理工大学 | A kind of single feedback broadband low section circular polarization microstrip antenna |
| CN108448244A (en) * | 2018-05-04 | 2018-08-24 | 南京航空航天大学 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
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