CN103700946B - Be with the parasitic triangular multi-arm antenna across arm slot-coupled - Google Patents
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- CN103700946B CN103700946B CN201410004354.3A CN201410004354A CN103700946B CN 103700946 B CN103700946 B CN 103700946B CN 201410004354 A CN201410004354 A CN 201410004354A CN 103700946 B CN103700946 B CN 103700946B
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Abstract
Be with the parasitic triangular multi-arm antenna across arm slot-coupled, relate to a kind of microstrip antenna.Be provided with substrate, triangle patch is provided with at upper surface of base plate, described triangle patch is that parasitic triangular band is across arm slot-coupled radiation patch, triangle patch is provided with spiral slit battle array, in the edge on triangle patch three limits, be parallel to each limit and load three in the symmetrical outer triangle lap gating system of three arms, one end broadside in gap aligns with the triangle length of side, and the other end broadside in gap presses close to triangle another side; In the swirling triangle ring that three outer gaps surround, be parallel to three outer gap self similarities and load three in the symmetrical Triangle ID lap gating system of three arms; Lay triangle good conductor layer as ground plate at base lower surface, and establish circular hole, for coaxial feed at distance triangle good conductor layer center.Antenna makes simply, size is little, it is wide to be with, radiation characteristic good, little by such environmental effects, easy of integration and multi-frequency Characteristic.
Description
Technical field
The present invention relates to a kind of microstrip antenna, especially relate to one on fundamental triangle microband paste, load meander lap gating system, combine with helical fold and fractal recursive technique, by complex optimum dielectric constant, the length of vortex Triangular Arm and the parameter of recurrence coupling amount, the basic band limits of the Big Dipper can be covered, also can be generalized to the parasitic triangular multi-arm antenna of band across arm slot-coupled of compatible with GPS and multifrequency application system.
Background technology
China Beidou satellite navigation system (COMPASS, Chinese transliteration title BeiDou), as the GPS (Global Position System) of Chinese independent research, independent operating, be national just at the important space information infrastructure of Implement Construction, the every field of economic society can be widely used in.
Beidou satellite navigation system by vacant terminal, ground surface end and user side three part form.Wherein terminal antenna is essential in satellite navigation system is also extremely important part, and can it decides whole system normally play its Function and operation.Along with the development of Technique of Satellite Navigation and Positioning, the application of satellite navigation system is also constantly expanded, and the type of terminal receiver gets more and more, and also has higher requirement to antenna.In the design of Big Dipper user side receiver, the antenna requirement of receiver has that omni-directional, main beam are wide, the function of right-handed circular polarization, eliminates the Multipath reflection that is derived from ground and reduce ionospheric interference with this.At present conventional Satellite Terminal antenna has crossed dipole antenna, four-arm spiral antenna and microstrip antenna, wherein microstrip antenna little with its volume, can conformal, flexible design, the premium properties such as be easy to manufacture, cost is low and be widely used in satellite navigation receiving system.
Along with the development of satellite communication, also improve constantly the designing requirement of microstrip antenna, consider the portability requirements of terminal equipment, when Antenna Design, size should be as far as possible little, and will meet multipolarization and multiband demand simultaneously.At present, Beidou satellite navigation system working frequency range is up L frequency range (1616 ± 5MHz, left-hand circular polarization), and descending S frequency range (2492 ± 5MHz, right-handed circular polarization).For Big Dipper terminal antenna multiband, circular polarization, is with wide requirement of Denging, existing with gap meander load, the means such as the nested and fractal recurrence of lamination implement design.But be not also applicable to very much being applied to the microstrip antenna on China's Beidou II satellite navigation and location system terminal equipment both at home and abroad at present, mainly there is the shortcomings such as oversize, antenna efficiency is on the low side, low elevation gain is low, low-frequency range bandwidth is not enough.
Summary of the invention
The object of the invention is to for the performance deficiency of current microstrip antenna in triones navigation system, there is provided and intend emphasis and solve the miniaturization of Big Dipper terminal antenna, multiband and broadband, adopt micro-strip paster antenna and load the form that combines of slot technology, slot-coupled technology, gap array technology, lamination Nesting Technique and fractal recurrence thought, for the band of the multi-series miniaturization of triones navigation system, multiband and broadband loading across the parasitic triangular multi-arm antenna of arm slot-coupled.
The present invention is provided with substrate, triangle patch is provided with at upper surface of base plate, described triangle patch is that parasitic triangular band is across arm slot-coupled radiation patch, triangle patch is provided with spiral slit battle array, in the edge on triangle patch three limits, be parallel to each limit and load three in the symmetrical outer triangle lap gating system of three arms, one end broadside in gap aligns with the triangle length of side, and the other end broadside in gap presses close to triangle another side; In the swirling triangle ring that three outer gaps surround, be parallel to three outer gap self similarities and load three in the symmetrical Triangle ID lap gating system of three arms; Lay triangle good conductor layer as ground plate at base lower surface, and establish circular hole, for coaxial feed at distance triangle good conductor layer center.
Described substrate can adopt ceramic dielectric substrate, and the dielectric constant of described ceramic dielectric substrate can be 6 ~ 20, and preferably 9.5 ~ 10.5; Described substrate can adopt triangle substrate, and the length of side of triangle substrate can be 50 ~ 55mm, and thickness can be 2 ~ 4mm, preferred length of side 50.4mm, thickness 3mm.
The gap length of described outer triangle lap gating system can be 21 ~ 38mm, and width can be 0.8 ~ 1.2mm, and preferred length is 27.5mm, and width is 1.0mm; The gap length of described Triangle ID lap gating system can be 13 ~ 24mm, and width can be 0.8 ~ 1.2mm, and preferred length is 16.3mm, and width is 1.0mm.
The length of side of described triangle good conductor layer can be 50 ~ 55mm, preferred 50.4mm; The geometric center of described circular hole distance triangle good conductor layer can be 2 ~ 2.5mm, preferred 2.4mm, and the diameter of described circular hole can be 0.8 ~ 1.2mm, preferred 1.0mm.
Described good conductor can adopt copper or silver etc.
Three arms in the outer triangle lap gating system that described three arms are symmetrical are by 60 ° ± 3 ° staggered couplings, second order fractal swirling triangular array ring is coupled into by 60 ° ± 3 ° across arm recurrence between each triangle, swirling Triangle ID arc produces high frequency frequency, and the outer A-frame arm of swirling produces low frequency frequency.The coaxial feeding structure being embedded in swirling recurrence triangle ring center is provided with in the interlayer of upper surface of base plate and lower surface.
The present invention has the following advantages compared with conventional micro strip line:
Adopt and load meander slot technology and helical fold lap gating system structure and fractal recurrence thought, and adopt lap gating system technology and fractal recurrence thought, antenna size structure is reduced greatly compared to antenna of the same type, achieves miniaturization and the multi-frequency Characteristic of triones navigation system terminal antenna.The present invention has multiple-frequency operation frequency band, as: L frequency range and S frequency range, L frequency range is 1.597 ~ 1.610GHz, and absolute bandwidth is 0.013GHz, relative bandwidth 0.81%; S frequency range is 2.481 ~ 2.514GHz, and absolute bandwidth is 0.096GHz, and relative bandwidth is 3.84%.
The present invention introduces and loads meander slot technology, helical fold structure technology and fractal recurrence thought, jointly realizes miniaturization and the multi-frequency Characteristic of triones navigation system terminal antenna.Because the field structure of triangular microstrip antennas and rectangular microband paste antenna is similar, and adopts triangular structure, antenna size can be effectively reduced.And make overall dimensions reduce 39.8% again by the lap gating system loaded, and the fractal recursive structure introduced reaches miniaturized object further.Peripheral gap meander formation first frequency loaded, and the second frequency is exactly the new resonance frequency being changed current path introducing by the loading of internal layer lap gating system.The present invention also has multifrequency tuber function, and by complex optimum dielectric constant, the length of vortex Triangular Arm and the parameter of recurrence coupling amount, can cover the basic band limits of the Big Dipper, also can be generalized to compatible with GPS and multifrequency application system.
Therefore the present invention have antenna make simple, size is little, it is wide to be with, radiation characteristic good, little by such environmental effects, easy of integration and multi-frequency Characteristic, meet completely Beidou antenna size little, with wide, return loss is lower, low elevation gain is high, receive the requirement little with the channel interference that transmits.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the lower surface configuration schematic diagram of the embodiment of the present invention.
Fig. 3 is the side schematic view of the embodiment of the present invention.
Fig. 4 is return loss (S11) performance map of the embodiment of the present invention.In the diagram, adopt rectangular coordinate system, abscissa represents frequency Frequency (GHz), and ordinate represents return loss intensity ThereturnlossoftheAntenna (dB).
Fig. 5 is the E face directional diagram of the embodiment of the present invention in L frequency range.In Figure 5, coordinate is polar coordinates.
Fig. 6 is the H face directional diagram of the embodiment of the present invention in L frequency range.In figure 6, coordinate is polar coordinates.
Fig. 7 is the E face directional diagram of the embodiment of the present invention in S frequency range.In the figure 7, coordinate is polar coordinates.
Fig. 8 is the H face directional diagram of the embodiment of the present invention in S frequency range.In fig. 8, coordinate is polar coordinates.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
See in Fig. 1 and 3, figure mark 2 for dielectric constant be 10 ± 0.5 triangle ceramic dielectric substrate, in Fig. 1, the ceramic dielectric substrate length of side is 50.4 ± 0.1mm.1 is marked for loading parasitic triangular slot patch in figure, in the edge on upper strata triangle patch three limits, introduce meander loading technique, spiral slit battle array structure and fractal recurrence thought, be parallel to each limit and be loaded with three in the symmetrical outer triangle lap gating system of three arms, one end broadside in gap aligns with the triangle length of side, other end broadside presses close to triangle another side, and wherein gap length is 27.5 ± 0.1mm, and width is 1.0 ± 0.1mm.In the swirling triangle ring surrounded in three outer gaps again, be parallel to three outer gap self similarities and load three Triangle ID lap gating system symmetrical in three arms, wherein gap length is 16.3 ± 1mm, and width is 1.0 ± 0.1mm.
4 be triangle good conductor layer ground plate see marking in Fig. 2 and 3, figure, the length of side 50.4 ± 0.1mm.Marking 3 in figure is hollow cylindrical coaxial feed, and geometric center 2.4 ± 0.1mm place of its distance conductor layer ground plate, diameter is 1.0 ± 0.1mm.
As seen from Figure 4, working band of the present invention is L frequency range and S frequency range, and L frequency range is 1.597 ~ 1.610GHz, and absolute bandwidth is 0.013GHz, relative bandwidth 0.81%; S frequency range is 2.481 ~ 2.514GHz, and absolute bandwidth is 0.096GHz, and relative bandwidth is 3.84%.At the return loss (S of these two working frequency range internal antennas
11) all at below 10dB, the minimum echo loss in L frequency range is the minimum echo loss in 43.1644dB, S frequency range is 24.1344dB.As can be seen from every data above, all meet triones navigation system requirement in the return loss performance of whole passband internal antenna, and performance is better than general micro-strip paster antenna, can be advantageously applied in Beidou navigation terminal system.
E face directional diagram and H face directional diagram when Fig. 5 and 6 provides 2.5GHz (L frequency range).
E face directional diagram and H face directional diagram when Fig. 7 and 8 provides 1.6GHz (S frequency range).
Manufacture mismachining tolerance of the present invention on the situation that affects of antenna performance see table 1.
Table 1
Note: 1. in table, data have certain redundancy, and have certain relevance between each parameter, what provide is equalization characteristic, can optimum structural parameter according to demand, to complete particular design.
Manufacture mismachining tolerance of the present invention is little on the impact of each parameter of antenna in allowed limits.Such as, ceramic dielectric substrate size, ceramic dielectric substrate copper-clad thickness, gap size, feed position equal error control within 2%, and the relative dielectric constant control errors of ceramic dielectric substrate within 5% time, the parameters change of antenna is little.
Claims (15)
1. band is across the parasitic triangular multi-arm antenna of arm slot-coupled, it is characterized in that being provided with substrate, triangle patch is provided with at upper surface of base plate, described triangle patch is that parasitic triangular band is across arm slot-coupled radiation patch, triangle patch is provided with spiral slit battle array, in the edge on triangle patch three limits, be parallel to each limit and load three in the symmetrical outer triangle lap gating system of three arms, one end broadside in gap aligns with the triangle patch length of side and cuts, gap is rotated counterclockwise after extending to preseting length thus, then the adjacent side being parallel to paster can cut second order gap; In the swirling triangle ring that three outer gaps surround, be parallel to three outer gap self similarities and load incision three the second order Triangle ID lap gating system symmetrical in three arms; Lay triangle good conductor layer as ground plate at base lower surface, and the geometric center 2 ~ 2.5mm place on distance triangle good conductor layer establishes the circular hole for coaxial feed; Three arms in the outer triangle lap gating system that described three arms are symmetrical are by 60 ° ± 3 ° staggered couplings, second order fractal swirling triangular array ring is coupled into by 60 ° ± 3 ° across arm recurrence between each triangle, swirling Triangle ID arc produces high frequency frequency, and the outer A-frame arm of swirling produces low frequency frequency.
2., as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that described substrate adopts ceramic dielectric substrate, the dielectric constant of described ceramic dielectric substrate is 6 ~ 20.
3., as claimed in claim 2 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the dielectric constant of described ceramic dielectric substrate is 9.5 ~ 10.5.
4., as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that described substrate adopts triangle substrate, the length of side of triangle substrate is 50 ~ 55mm, and thickness is 2 ~ 4mm.
5., as claimed in claim 4 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the length of side of described triangle substrate is 50.4mm, thickness is 3mm.
6., as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the gap length of described outer triangle lap gating system is 21 ~ 38mm, width is 0.8 ~ 1.2mm.
7., as claimed in claim 6 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the gap length of described outer triangle lap gating system is 27.5mm, width is 1.0mm.
8., as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the gap length of described Triangle ID lap gating system is 13 ~ 24mm, width is 0.8 ~ 1.2mm.
9., as claimed in claim 8 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the gap length of described Triangle ID lap gating system is 16.3mm, width is 1.0mm.
10., as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the length of side of described triangle good conductor layer is 50 ~ 55mm.
11. as claimed in claim 10 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the length of side of described triangle good conductor layer is 50.4mm.
12. as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that the diameter of described circular hole is 0.8 ~ 1.2mm.
13. as claimed in claim 12 with the parasitic triangular multi-arm antenna across arm slot-coupled, and it is characterized in that the geometric center of described circular hole distance triangle good conductor layer is 2.4mm, the diameter of described circular hole is 1.0mm.
14. as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that described good conductor adopts copper or silver.
15. as claimed in claim 1 with the parasitic triangular multi-arm antenna across arm slot-coupled, it is characterized in that being provided with the coaxial feeding structure being embedded in swirling recurrence triangle ring center in the interlayer of described upper surface of base plate and lower surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410004354.3A CN103700946B (en) | 2014-01-04 | 2014-01-04 | Be with the parasitic triangular multi-arm antenna across arm slot-coupled |
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| CN201410004354.3A CN103700946B (en) | 2014-01-04 | 2014-01-04 | Be with the parasitic triangular multi-arm antenna across arm slot-coupled |
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| CN103700946A CN103700946A (en) | 2014-04-02 |
| CN103700946B true CN103700946B (en) | 2016-04-06 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106654588B (en) * | 2016-11-21 | 2019-07-02 | 集美大学 | A kind of triangular ring microstrip antenna |
| CN106961002B (en) * | 2017-03-10 | 2019-04-05 | 南京航空航天大学 | Planar two axial mode helical antenna suitable for RFID tag |
| CN108232445B (en) * | 2018-01-30 | 2023-05-09 | 厦门大学嘉庚学院 | Triangular spiral slot-hexagonal array composite ultra-wideband antenna and working method thereof |
| CN107968259A (en) * | 2018-01-30 | 2018-04-27 | 厦门大学嘉庚学院 | The compound ultra-wide band antenna of hexagonal array based on Xie Erbinsi matrix components |
| CN109904604B (en) * | 2019-02-20 | 2020-09-08 | 湖南大学 | Antenna |
| CN110416722B (en) * | 2019-08-29 | 2024-02-23 | 南京信息工程大学 | Equilateral triangle ring structure gap broadband antenna |
| CN112038774A (en) * | 2020-08-26 | 2020-12-04 | 电子科技大学 | Novel slotted circular patch antenna |
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|---|---|---|---|---|
| US5515066A (en) * | 1993-08-19 | 1996-05-07 | The United States Of America As Represented By The Secretary Of The Army | Photon-triggered RF radiator using bulk type switching |
| KR20070009059A (en) * | 2005-07-15 | 2007-01-18 | 인천대학교 산학협력단 | Dual-band circular polarization triangular patch antenna for reception of dmb and gps signals |
| CN102299416A (en) * | 2011-06-02 | 2011-12-28 | 厦门大学 | Micro-strip big dipper slot antenna array containing close packing PBG (photonic band gap) and coupling cavity |
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2014
- 2014-01-04 CN CN201410004354.3A patent/CN103700946B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515066A (en) * | 1993-08-19 | 1996-05-07 | The United States Of America As Represented By The Secretary Of The Army | Photon-triggered RF radiator using bulk type switching |
| KR20070009059A (en) * | 2005-07-15 | 2007-01-18 | 인천대학교 산학협력단 | Dual-band circular polarization triangular patch antenna for reception of dmb and gps signals |
| CN102299416A (en) * | 2011-06-02 | 2011-12-28 | 厦门大学 | Micro-strip big dipper slot antenna array containing close packing PBG (photonic band gap) and coupling cavity |
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