CN207977460U - A kind of double-circle polarization conelike beam antenna - Google Patents
A kind of double-circle polarization conelike beam antenna Download PDFInfo
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- CN207977460U CN207977460U CN201820468750.5U CN201820468750U CN207977460U CN 207977460 U CN207977460 U CN 207977460U CN 201820468750 U CN201820468750 U CN 201820468750U CN 207977460 U CN207977460 U CN 207977460U
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- antenna
- directional coupler
- antenna radiator
- distributing point
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Abstract
The utility model discloses a kind of double-circle polarization conelike beam antennas, it is characterised in that：Including antenna radiator, antenna substrate, antenna ground plate, directional coupler substrate and the directional coupler set gradually from top to bottom, antenna radiator is circular metal patch and with can be operated in TM21Mould or TM31Size under mould, antenna radiator and directional coupler is corresponding sets there are two distributing point, antenna radiator is connected by distributing point by metallization VIA with directional coupler, directional coupler can by distributing point to antenna radiator carry out equal spokes, poor 90 ° of phase duplex feeding, so that antenna radiator is generated circular polarisation.The utility model changes the distance between distributing point by the size of the radial angle of change, so that the mutual coupling between distributing point reduces, the axis for improving antenna compares performance.And without increasing additional facility, the antenna of the utility model has the advantages that simple in structure, section is low, batch high.
Description
Technical field
The utility model is related to antenna technical fields, and in particular, to a kind of antenna for realizing double-circle polarization cone-beam.
Background technology
Circular polarized antenna can receive the linear polarization signal of arbitrary polarisation direction, wirelessly communicate since it revolves electrical characteristics
Application in field is more and more extensive.And Faraday rotation effect can occur in satellite communication field, when electromagnetic wave passes through ionosphere
It answers, to avoid signal because electric field rotates the polarization loss brought, therefore satellite communication antena mostly uses circular polarized antenna.
According to beam shape point, usual satellite communication ground-plane antenna has following two class：When cone-beam antenna, second is that fixed
To beam antenna.The former need not adjust antenna direction, and the satellite-signal that any direction within the scope of certain inclination angle may be implemented connects
It receives, the latter generally requires to adjust the direction of aerial radiation wave beam by electrically or mechanically mode, to realize communication with satellite alignment.
The former section height is low, size is small, installation is relatively flexible, and latter dimensions are larger, cost is also higher, is often suitable for higher gain
It is required that occasion.
By literature search, XudongBai, Xianling Liang et al. 2015 is in IEEE Antenna and
Article " the Dual-Circularly Polarized delivered on Wireless Propagation Letters periodicals
A kind of stacked paster antenna of the starlike gap load proposed in Conical-Beam Microstrip Antenna ", can be with
Realize double-circle polarization cone-beam, this kind of antenna structure is still complex, and reduces stray electrical current by opening starlike gap
So as to improve the effect unobvious of antenna axial ratio characteristic.
Invention content
The utility model combination the problems of the prior art provide a kind of double-circle polarization cone-beam antenna, pass through change
Feed position realizes the improvement of antenna circular polarisation performance.
The technical solution of the utility model is：A kind of double-circle polarization conelike beam antenna, it is characterised in that：Including from up to
Under the antenna radiator, antenna substrate, antenna ground plate, directional coupler substrate and the directional coupler that set gradually, the day
Beta radiation body is circular metal patch and with can be operated in TM21Mould or TM31Size under mould, the antenna radiator and
Directional coupler is corresponding to be set there are two distributing point, and the distributing point is by metallization VIA by antenna radiator and orientation
Coupler is connected；The directional coupler can by distributing point to antenna radiator carry out equal spokes, poor 90 ° of phase duplex feeding, make
Antenna radiator generates circular polarisation.
Preferably, the antenna radiator is operated in TM21When under mould, the radial angle of the distributing point is 135 °.
Preferably, the antenna radiator is operated in TM31When under mould, the radial angle of the distributing point is 150 °.
Preferably, the directional coupler is integrated chip or Metal printed circuit board structure.
Preferably, the directional coupler is 3dB directional couplers.
Preferably, the directional coupler and antenna radiator have common antenna ground plate.
Advantageous effect：A kind of double-circle polarization conelike beam antenna of the utility model, by changing the size of radial angle,
Change the distance between distributing point, so that the mutual coupling between distributing point reduces, the axis for improving antenna compares performance.And do not have
Increase additional facility, the antenna of the utility model has simple in structure, and section is low, batch high advantage.
Description of the drawings
Fig. 1 is a kind of vertical view of double-circle polarization conelike beam antenna of the utility model；
Fig. 2 is a kind of sectional view of double-circle polarization conelike beam antenna of the utility model；
S11 and S21 frequency response curves when Fig. 3 is 45 ° of distributing point radial angle in the embodiments of the present invention；
S11 and S21 frequency response curves when Fig. 4 is 135 ° of distributing point radial angle in the embodiments of the present invention；
Fig. 5 is phi=0 ° of section in the case of feeding 45 ° and 135 ° two kinds of radial angle in the embodiments of the present invention
Axis ratio characteristic curve comparison；
Fig. 6 is that phi=90 ° of section in the case of 45 ° and 135 ° two kinds of radial angle is fed in the embodiments of the present invention
Axis ratio characteristic curve comparison.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after having read the utility model, art technology
Personnel fall within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As depicted in figs. 1 and 2, a kind of double-circle polarization conelike beam antenna, including the antenna spoke that sets gradually from top to bottom
Beam 1, antenna substrate 2, antenna ground plate 3, directional coupler pole plate 4 and directional coupler 5；The antenna radiator 1 is circle
Shape metal patch and positioned at the center of the antenna substrate 2；Distributing point 11 there are two being set on the antenna radiator 1, the feed
Point 11 radial angle beCorresponding metallization VIA 6 is respectively equipped at the distributing point 11；The distributing point 11 passes through gold
Categoryization via 6 is connected with the antenna radiator 1 and directional coupler 5.
The antenna radiator 1 realizes that circular polarisation, described two distributing points 11 are same to antenna radiator 1 using double-fed mode
When feed, to encourage the mode current of a pair of orthogonal；Feed amplitude is equal, and phase differs 90 °, which can be analyzed to two
A orthogonal constant amplitude line polarization wave on room and time, the cross polarization field between them caused by intercoupling are mutual
It offsets, improves axis ratio characteristic.
The directional coupler is 3dB directional couplers.The feed of equal, poor 90 ° of the phase of amplitude described above is fixed by 3dB
Ensure to coupler.
The antenna radiator 1 works in TM21 moulds, the radial angle of the distributing point 11It is 135 °.It is golden under the pattern
Belong to patch central current to offset each other, therefore zero is upwardly formed in the side side of penetrating, to give off cone-beam.The radial direction angle
Angle, two metallization VIAs 6 excitation mode current direction it is just orthogonal.
The antenna radiator 1 works in TM31 moulds, the radial angle of the distributing point 11It is 150 °.Because of the pattern
Lower metal patch center electric current offsets each other, therefore is upwardly formed zero in the side side of penetrating, to give off cone-beam.
The directional coupler 5 is integrated chip or Metal printed circuit board structure.
The directional coupler and antenna radiator have common antenna ground plate.
Embodiment 1：
Include antenna radiator 1, antenna substrate 2, antenna-reflected plate 3, directional coupler base successively from top to down in structure
Plate 4, directional coupler 5, metallization VIA 6.Directional coupler 5 and antenna radiator 1 possess common earth plate 3, printing
In the other side of directional coupler substrate 4.
Antenna radiator 1 is circular metal plate, and directional coupler 5 carries out antenna radiator 1 by metallization VIA 6 etc.
90 ° of feeds of amplitude difference phase, and two metallization VIAs 6 have encouraged TM respectively21Mould, 1 central current of antenna radiator offset each other,
Therefore cone-beam can be formed.And the radial angle of two metallization VIAs 6 is 135 °, the mode current of two vias 6 excitation
Direction is just orthogonal, 90 ° of pumping signals of constant amplitude difference phase provided due to directional coupler 4 so that aerial radiation circularly polarised wave.
Fig. 3 is compared with Fig. 4 it is found that being compared with 45 ° of radial angle of feed, and when feed radial angle is 135 °, two feed
Isolation between port is obviously improved, and does not result in the resonance point offset of another port.
It is found that when feed radial angle is 135 °, antenna is lower in more wide beamwidth inner shaft ratio for Fig. 5 and Fig. 6 comparisons.
Claims (6)
1. a kind of double-circle polarization conelike beam antenna, it is characterised in that：Including the antenna radiator set gradually from top to bottom
(1), antenna substrate (2), antenna ground plate (3), directional coupler substrate (4) and directional coupler (5), the antenna radiator
(1) it is circular metal patch and with TM can be operated in21Mould or TM31Size under mould, the antenna radiator (1) and fixed
It is set to coupler (5) is corresponding there are two distributing point (11), the distributing point (11) is by metallization VIA (6) by antenna
Radiator (1) is connected with directional coupler (5), and the directional coupler (5) can carry out antenna radiator (1) by distributing point
The duplex feeding of equal spokes, poor 90 ° of phase, makes antenna radiator (1) generate circular polarisation.
2. double-circle polarization conelike beam antenna according to claim 1, it is characterised in that：Antenna radiator (1) work
In TM21When under mould, the radial angle of the distributing point (11) is 135 °.
3. double-circle polarization conelike beam antenna according to claim 1, it is characterised in that：Antenna radiator (1) work
In TM31When under mould, the radial angle of the distributing point (11) is 150 °.
4. double-circle polarization conelike beam antenna according to claim 1, it is characterised in that：The directional coupler (5) is collection
At chip or Metal printed circuit board structure.
5. double-circle polarization conelike beam antenna according to claim 1, it is characterised in that：The directional coupler (5) is 3dB
Directional coupler.
6. double-circle polarization conelike beam antenna according to claim 1, it is characterised in that：The directional coupler (5) and day
Beta radiation body (1) has common antenna ground plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820468750.5U CN207977460U (en) | 2018-04-04 | 2018-04-04 | A kind of double-circle polarization conelike beam antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820468750.5U CN207977460U (en) | 2018-04-04 | 2018-04-04 | A kind of double-circle polarization conelike beam antenna |
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| Publication Number | Publication Date |
|---|---|
| CN207977460U true CN207977460U (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820468750.5U Active CN207977460U (en) | 2018-04-04 | 2018-04-04 | A kind of double-circle polarization conelike beam antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461913A (en) * | 2018-04-04 | 2018-08-28 | 南京软赫波誉电子科技有限公司 | A kind of double-circle polarization conelike beam antenna |
| CN112003001A (en) * | 2020-08-12 | 2020-11-27 | 上海交通大学 | Omnidirectional dual-circular polarization based phased random multi-polarization antenna and multi-polarization channel communication system |
| CN112701497A (en) * | 2020-12-23 | 2021-04-23 | 北京邮电大学 | Low-profile shared-aperture dual-circular-polarization orbital angular momentum state multiplexing antenna |
-
2018
- 2018-04-04 CN CN201820468750.5U patent/CN207977460U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461913A (en) * | 2018-04-04 | 2018-08-28 | 南京软赫波誉电子科技有限公司 | A kind of double-circle polarization conelike beam antenna |
| CN112003001A (en) * | 2020-08-12 | 2020-11-27 | 上海交通大学 | Omnidirectional dual-circular polarization based phased random multi-polarization antenna and multi-polarization channel communication system |
| CN112003001B (en) * | 2020-08-12 | 2022-01-11 | 上海交通大学 | Omnidirectional dual-circular polarization based phased random multi-polarization antenna and multi-polarization channel communication system |
| CN112701497A (en) * | 2020-12-23 | 2021-04-23 | 北京邮电大学 | Low-profile shared-aperture dual-circular-polarization orbital angular momentum state multiplexing antenna |
| CN112701497B (en) * | 2020-12-23 | 2021-09-17 | 北京邮电大学 | Low-profile shared-aperture dual-circular-polarization orbital angular momentum state multiplexing antenna |
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