CN103682651B - A kind of miniaturization broad beam microstrip antenna - Google Patents
A kind of miniaturization broad beam microstrip antenna Download PDFInfo
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- CN103682651B CN103682651B CN201310675602.2A CN201310675602A CN103682651B CN 103682651 B CN103682651 B CN 103682651B CN 201310675602 A CN201310675602 A CN 201310675602A CN 103682651 B CN103682651 B CN 103682651B
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- medium
- frustum
- antenna
- miniaturization
- circular polarized
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Abstract
The invention discloses a kind of miniaturization wide beam circular polarized antenna, it is characterized in that, the circular polarized antenna includes that micro-strip paster antenna, medium frustum and metal cylinder, the medium frustum are arranged at the micro-strip paster antenna upper surface, and metal cylinder is embedded into inside medium frustum., compared with other wide-beam circularly-polarizedmicrostrip microstrip antennas, compact conformation, section are low for antenna proposed by the present invention, with excellent broad beam radiation characteristic.The present invention and its design principle are can be directly used in the end-user machine and Miniaturization Design of satellite navigation system.
Description
Technical field
The present invention relates to antenna technical field, and in particular to a kind of miniaturization, the high-performance navigation antenna design of broad beam,
It is mainly used in satellite navigation system ground user's machine equipment etc..
Background technology
Satellite navigation and location system have by round the clock, season, the external condition such as meteorological condition affected to limit less, navigation is calmly
Position high precision, locating speed are fast, high reliability.Technique of Satellite Navigation and Positioning has replaced conventional wireless conductance boat skill substantially
Art, becomes Present Global three big information industries with fastest developing speed together with mobile communication, the Internet.Satellite main at this stage is led
Boat system has the gps system in the U.S., Muscovite GLONASS systems, the GALILEO systems in Europe, Chinese dipper system etc..
Antenna is one of part of application apparatus most critical of satellite navigation and location system, and terminal aides is in work
When, need the navigation signal that multi-satellite is received by antenna, and resolved by software and can just complete positioning, navigation feature.
And signal is very weak during the ground of general satellite-signal arrival, in order to receive the signal of more satellites, while obtaining more
Good signal to noise ratio, it is desirable to the whole upper half-space of terminal antenna wave cover, and there is uniform amplitude response to satellite-signal,
It is that its directional diagram has broad beam characteristic.
Common wide beam circular polarized antenna form mainly have microstrip antenna, decussation doublet antenna, both arms and
Four-arm spiral antenna etc..Microstrip antenna is patch plus conductor sheet and the antenna that formed on dielectric substrate with metal ground plate.
Common microstrip antenna realizes that the method for circular polarisation is single feedback method, many feedback methods and multivariate method respectively.Microstrip antenna has section
Low, it is easy to integrated and conformal, lightweight, it is easy to accomplish the features such as circular polarisation and bipolar, double frequency or multiple-frequency operation, handheld,
Achieve in the terminal units such as vehicle-mounted type and be widely applied.
It is the beam angle of further broadening microstrip antenna, Ka Ming Mak, Kwai Man Luk et al. in document " A
Circularly Polarized Antenna With Wide Axial Ratio Beam width”（IEEE
TRANSACTIONS ON ANTENNAS AND PROPAGATION,VOL.57,NO.10,2009,pp.3309-3312）Utilize
The symmetrical dipole that two butterfly-like pasters are constituted, and 90 ° of phase contrast feeds of Wilkinson power splitters constant amplitude are combined, design
The circular polarized antenna of broad beam.
On the other hand, C.-W.Su, S.-K.Huang and C.-H.Lee et al. are in document " CP microstrip antenna
with wide beamwidth for GPS band application”（ELECTRONICS LETTERS,Vol.43,
No.20,2007,pp.）In add metal wall construction at the edge of microstrip antenna, and the floor using platform wimble structure achieves wide ripple
Beam circular antenna.
But the circular polarization microstrip antenna of broad beam set forth above and crossed dipole antenna and four-arm spiral antenna
Deng wide beam circular polarized antenna, structure is more complicated and volume is big, is unfavorable for the miniaturization of equipment.
Content of the invention
In view of prior art is not enough, it is an object of the invention to solve the low elevation angle circular polarisation of typical circular polarization microstrip antenna increase
The low problem of benefit, it is proposed that a kind of miniaturization, the circular polarization microstrip antenna of low section, reduces day while radiation characteristic is improved
The structural volume of line, so as to improve the performance of terminal use's machine equipment of satellite navigation system, and is advantageously implemented the little of equipment
Type.
It should be noted that rectangular microstrip antenna is to lead by the back side of the radiation patch above dielectric substrate and dielectric substrate
The antenna that body earth plate is constituted.The radiation of microstrip antenna is produced by the fringing field between microstrip antenna conductor patch edge and ground
Raw.Microstrip antenna has the advantages that low section, small volume, easy to process, and microstrip antenna is used for realizing circular polarisation and multiband etc.
Application is more and more extensive.It is that polarised direction is orthogonal, amplitude is equal, phase place phase for generation two that microstrip antenna produces the key of circular polarisation
Differ from 90 ° of line polarization wave.Antenna is realized using technological means such as microband paste shape perturbation, gap loading, many feed combinations
Circular polarisation.
But for the navigation antenna used by Beidou satellite navigation system Ground Application equipment, classical microstrip antenna is not only frequently
With narrow, beam angle can not still meet requirement, need further broadening beam angle.
Therefore, antenna proposed by the present invention produces circularly polarised wave using classical circular polarization microstrip antenna, and on antenna
A medium frustum is covered, using the beam angle of special dielectric structure broadening antenna.And, the day for further broadening
The beam angle of line, has been internally embedded some metal cylinders in medium frustum on this basis.
To achieve these goals, the technical solution used in the present invention is as follows：
A kind of miniaturization wide beam circular polarized antenna, the circular polarized antenna include micro-strip paster antenna, medium frustum and
Metal cylinder, the medium frustum are arranged at the micro-strip paster antenna upper surface.
It should be noted that the micro-strip paster antenna includes the connection of medium substrate, radiation patch, floor and coaxial radio-frequency
Device, the floor are arranged at the medium substrate lower surface；The radiation patch is arranged at the basic upper surface of the medium, and position
Within the medium frustum；The heart yearn of the coaxial radio-frequency connector is welded through the medium substrate with the radiation patch
Connect, and the crust of the coaxial radio-frequency connector and the floor welded.
Need it is further noted that the medium frustum bottom centre is arranged with the radiation patch center superposition.
Need it is further noted that being provided with some metal cylinders in the medium frustum.
Need it is further noted that some metal cylinders are symmetrically and evenly arranged for circle and its center and the medium
The center of frustum is coaxial.
Used as a kind of preferred scheme, the radiation patch is shaped as rectangular patch form or circular patch form or triangle
The routine geometry such as shape paster.
Used as a kind of preferred scheme, the section at the top and bottom of the medium frustum is circle.
Beneficial effect of the present invention is, compared with existing broad beam antenna, simple structure, compact, section are low, using Jie
The broad beam characteristic of antenna is realized in matter frustum and metal cylinder loading, and future in engineering applications is wide.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is micro-strip paster antenna structural representation in Fig. 1, and wherein a is top view, and b is upward view；
Fig. 3 is medium frustum structure schematic diagram in Fig. 1, and wherein a is top view, and b is upward view；
Fig. 4 is antenna gain direction schematic diagram proposed by the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.It should be noted that the present embodiment is with the present invention
Implemented under premised on technical scheme, given detailed embodiment and specific operating process, but the protection of the present invention
Scope is not limited to following embodiments.
As shown in figure 1, the present invention is a kind of miniaturization broad beam microstrip antenna, including the micro-strip paster antenna 1, medium
Frustum 2 and metal cylinder 3.The medium frustum 2 is arranged at 1 surface of the micro-strip paster antenna；In the microband paste day
1 surface of line is additionally provided with the radiation patch 12, and the center of the center of the radiation patch 12 and the bottom of the medium frustum 2
Overlap.As a kind of preferred scheme, screw or glue between the micro-strip paster antenna 1 and the medium frustum 2, can be passed through
Bonding.
It should be noted that in the case of the medium frustum 2 is non-existent, the micro-strip paster antenna 1 is radiated
Electromagnetic wave the directional diagram of typical radiation with straightline propagation, will be formed.
And the electromagnetic wave that micro-strip paster antenna 1 is radiated in the present invention will be through the medium frustum 2, therefore electromagnetism
Direction of wave travel changes, and further, changes the structural parameters in the medium frustum 2, the such as volume of frustum, slope
Deng the antenna radiation pattern can be made to change.Pattern beamwidth is made to obtain broadening by appropriate adjustment structural parameters.For entering
The beam angle of one step broadening antenna, can be internally embedded the metal cylinder 3 in the medium frustum 2.
Need it is further noted that the metal cylinder 3 assumes circle symmetrically on the basis of the center of radiation patch 12
Even distribution.Metal wire of the metal cylinder 3 for certain thickness, the thickness and length of metal wire can all affect the wave beam of antenna
Width, can be according to the structural parameters of the appropriate selection metal cylinder 3 of operating frequency.In actual assembled, can be in the medium conical
The symmetrical uniform drilling of circle centered on a upper circular section in platform 2, the thickness one of the diameter in hole and the metal cylinder 3
Sample, then the metal cylinder 3 is inserted in corresponding hole, so as to realize fixing.Further, for preventing the metal cylinder 3
Rock, while the precision in the hole that bores on the medium frustum 2 is ensured, before the metal cylinder 3 inserts corresponding hole
Wipe glue.
As shown in Fig. 2 a, 2b, the micro-strip paster antenna 1 includes medium substrate 11, radiation patch 12, floor 13 and coaxial
Radio frequency connector 14.The medium substrate 11 has certain thickness, can be selected according to the requirement of the bandwidth of antenna and physical size
Select suitably sized.Square patch of the radiation patch 12 for corner cut, the radiation patch 12 can be according to different entelechies
Change microstrip antenna scheme to take different shapes, such as：Rectangle, circle, triangle etc..Present invention feed is by described coaxial
Radio frequency connector 14 realizes that the heart yearn of the coaxial radio-frequency connector 14 is welded on the radiation through the medium substrate 11
On paster 12, the crust of the coaxial radio-frequency connector 14 is welded together with the floor 13.
As shown in Fig. 3 a, 3b, the medium frustum 2 assumes a up-thin-low-thick structure, and upper lower section is circle.With
On the basis of the center in upper circular section, in certain radius（According to operating frequency of antenna and velocity of wave width requirement alterable）Circle
On, on brill, the symmetrical equally distributed hole of circle, the metal cylinder 3 is inserted into inside corresponding hole, the size and depth in hole
Can be with the size variation of the metal cylinder 3.The physical dimension of the medium frustum 2, the as above size of lower section, height etc.,
Change can be required according to the operating frequency of antenna and beam angle.
As shown in Fig. 4 a, 4b, 0 ° and 90 ° of tangent planes are sets forth（In Fig. 2 a, the center of radiation patch is connected with coaxial radio-frequency
The straight line for connecing device composition is starting point, rotates counterclockwise）Actual measurement antenna circular polarisation gain pattern, solid line on figure
For circular polarisation gain pattern of the present invention, dotted line is the circular polarisation gain pattern of classical circular polarization microstrip antenna, from Fig. 4 a
Find out about 143 ° of the 3dB beam angles of 0 ° of tangent plane present invention, about 72 ° of classical circular polarization microstrip antenna 3dB beam angles, figure
About 142 ° of the 3dB beam angles of 90 ° of tangent plane present invention are found out in 4b, and classical circular polarization microstrip antenna 3dB beam angles are about
72 °, beam angle of the present invention is much larger than classical circular polarization microstrip antenna.
Examples detailed above technology design only to illustrate the invention and feature, are served only for being specifically described the present invention,
Allow one of ordinary skilled in the art will appreciate that present disclosure and implement according to this, protection of the invention can not be limited with this
Scope.All equivalence changes that is made according to present invention or modification, should all be included within the scope of the present invention.
Claims (4)
1. a kind of miniaturization wide beam circular polarized antenna, the circular polarized antenna include micro-strip paster antenna and medium frustum, institute
Give an account of matter frustum and be arranged at the micro-strip paster antenna surface, in the medium frustum, be provided with some metal cylinders, its feature exists
In what centered on the upper circular section in the medium frustum, circle was symmetrical is uniformly provided with hole, the diameter in the hole and institute
The thickness for stating metal cylinder is the same, and the metal cylinder is inserted in corresponding hole；
The micro-strip paster antenna includes that medium substrate, radiation patch, floor and coaxial radio-frequency connector, the floor are arranged at
The medium substrate lower surface；The radiation patch is arranged at the medium substrate upper surface, and be located at the medium frustum it
Interior；The heart yearn of the coaxial radio-frequency connector is welded through the medium substrate with the radiation patch, and the coaxial radio-frequency
The crust of adapter and the floor welded；
The medium frustum bottom centre is arranged with the radiation patch center superposition.
2. miniaturization wide beam circular polarized antenna according to claim 1, it is characterised in that some metal cylinders are
Circle is symmetrically and evenly arranged and its center is coaxial with the center of the medium frustum.
3. miniaturization wide beam circular polarized antenna according to claim 1, it is characterised in that the radiation patch shape can
For rectangular patch form or circular patch form or triangle patch routine geometry.
4. the miniaturization wide beam circular polarized antenna according to right wants 2, it is characterised in that the top of the medium frustum and
The section of bottom is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675602.2A CN103682651B (en) | 2013-12-12 | 2013-12-12 | A kind of miniaturization broad beam microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675602.2A CN103682651B (en) | 2013-12-12 | 2013-12-12 | A kind of miniaturization broad beam microstrip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103682651A CN103682651A (en) | 2014-03-26 |
| CN103682651B true CN103682651B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675602.2A Expired - Fee Related CN103682651B (en) | 2013-12-12 | 2013-12-12 | A kind of miniaturization broad beam microstrip antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649334A (en) * | 2018-04-28 | 2018-10-12 | 南京邮电大学 | dual-band dual-polarized wearable relay antenna |
| CN108761502B (en) * | 2018-08-31 | 2024-02-02 | 广东圣大电子有限公司 | Multimode GNSS test receiver with accurate phase center |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202084636U (en) * | 2011-05-30 | 2011-12-21 | 中电科技扬州宝军电子科技有限公司 | Broad-beam double-frequency circular polarized antenna |
| CN103117454A (en) * | 2013-03-11 | 2013-05-22 | 北京理工大学 | Wideband circular polarization high gain combined antenna |
| CN103219591A (en) * | 2013-04-09 | 2013-07-24 | 华南理工大学 | Wide-beam circularly-polarized microstrip antenna loaded with parasitic ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1667278A1 (en) * | 2004-11-23 | 2006-06-07 | Alcatel | Base station panel antenna with dual-polarized radiating elements and shaped reflector |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202084636U (en) * | 2011-05-30 | 2011-12-21 | 中电科技扬州宝军电子科技有限公司 | Broad-beam double-frequency circular polarized antenna |
| CN103117454A (en) * | 2013-03-11 | 2013-05-22 | 北京理工大学 | Wideband circular polarization high gain combined antenna |
| CN103219591A (en) * | 2013-04-09 | 2013-07-24 | 华南理工大学 | Wide-beam circularly-polarized microstrip antenna loaded with parasitic ring |
Non-Patent Citations (1)
| Title |
|---|
| 北斗双频天线及符合双极化基站天线设计;潘泽坤;《硕士论文》;20130531;第41-60页 * |
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| CN103682651A (en) | 2014-03-26 |
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Granted publication date: 20170315 Termination date: 20201212 |