CN103700946A - Parasitic triangular multi-arm antenna with strip arm spanning gap coupling - Google Patents
Parasitic triangular multi-arm antenna with strip arm spanning gap coupling Download PDFInfo
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- CN103700946A CN103700946A CN201410004354.3A CN201410004354A CN103700946A CN 103700946 A CN103700946 A CN 103700946A CN 201410004354 A CN201410004354 A CN 201410004354A CN 103700946 A CN103700946 A CN 103700946A
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Abstract
A parasitic triangular multi-arm antenna with strip arm spanning gap coupling relates to a microstrip antenna. The antenna comprises a substrate of which the upper surface is provided with a triangular paster; the triangular paster is a parasitic triangular strip arm spanning gap coupling radial paster; the triangular paster is provided with spiral gap arrays; three outer triangular gap arrays in three-arm symmetrical distribution and parallel with the three edges of the triangular paster are loaded at the edges of the three edges of the triangular paster; the wide edge at one end of each gap is aligned with the triangular long side; the wide edge at the other end of each gap is attached to the other triangular edge; in the vortex triangular ring defined by the three outer gaps, three inner triangular gap arrays in three-arm symmetrical distribution are loaded by being parallel with the three outer gaps in a self-similarity mode; a triangular good conductor layer is laid on the lower surface of the substrate as a grounding plate. A circular hole is formed in the center of the triangular good conductor layer for feeding coaxially. The antenna is simple in manufacturing, small in size, wide in band width, good in radiation property and easy to integrate, is less influenced by environment factors and has multifrequency characteristic.
Description
Technical field
The present invention relates to a kind of microstrip antenna, especially relate to a kind of meander gap battle array that loads on fundamental triangle microband paste, and fractal recursive technique folding with spiral combines, by complex optimum dielectric constant, the parameter of the length of vortex Triangular Arm and recurrence coupling amount, can cover the basic band limits of the Big Dipper, also can be generalized to the band of compatible with GPS and multifrequency application system across the parasitic triangle multi-arm antenna of arm slot-coupled.
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, can be widely used in the every field of economic society.
Beidou satellite navigation system is comprised of vacant terminal, ground surface end and user side three parts.Wherein terminal antenna be essential in satellite navigation system be also extremely important part, it is determining that can whole system normally bring into 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 is more and more, also antenna is had higher requirement.In the design of Big Dipper user side receiver, the antenna of receiver requires to have omni-directional, main beam is wide, the function of right-handed circular polarization, with this, eliminates and is derived from the Multipath reflection on ground and reduces ionospheric interference.At present conventional ICBM SHF satellite terminal antenna has crossed dipole antenna, four-arm spiral antenna and microstrip antenna, wherein microstrip antenna little with its volume, can be 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, the designing requirement of microstrip antenna is also improved constantly, consider the portable requirement 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 the wide requirement of Denging, existing with gap meander load, lamination is nested and the means such as fractal recurrence are implemented design.But be not also applicable to being very much applied to the microstrip antenna on China's Big Dipper two generations satellite navigation and location system terminal equipment both at home and abroad at present, mainly have oversize, the shortcoming such as antenna efficiency is on the low side, low elevation gain is low, low-frequency range bandwidth deficiency.
Summary of the invention
The object of the invention is to the performance deficiency in triones navigation system for current microstrip antenna, provide and intend miniaturization, the multiband and broadband that emphasis solves Big Dipper terminal antenna, the form that adopts micro-strip paster antenna to combine with loading gap technology, slot-coupled technology, gap array technology, lamination Nesting Technique and fractal recurrence thought, the parasitic triangle multi-arm antenna for the band of multi-series miniaturization, multiband and the broadband loading of triones navigation system across arm slot-coupled.
The present invention is provided with substrate, at upper surface of base plate, be provided with triangle patch, described triangle patch is that parasitic V-belt is across arm slot-coupled radiation patch, triangle patch is provided with spiral slit battle array, edge on three limits of triangle patch, be parallel to each three of limit loading and be the symmetrical outer triangle gap battle array of three arms, one end broadside in gap aligns with the triangle length of side, and the other end broadside in gap is pressed close to triangle another side; In the whirlpool shape triangle ring that gap surrounds outside three, be parallel to three three of outer gap self similarities loadings and be the symmetrical interior triangle gap battle array of three arms; At base lower surface, lay triangle good conductor layer as ground plate, and establishing circular hole apart from triangle good conductor layer center, for coaxial feed.
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 gap battle array 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 interior triangle gap battle array 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, preferably 50.4mm; Described circular hole can be 2～2.5mm apart from the geometric center of triangle good conductor layer, preferred 2.4mm, and the diameter of described circular hole can be 0.8～1.2mm, preferably 1.0mm.
Described good conductor can adopt copper or silver etc.
Three arms in the symmetrical outer triangle gap battle array of described three arms are by 60 ° ± 3 ° staggered couplings, between each triangle, by 60 ° ± 3 °, across arm recurrence, be coupled into the fractal whirlpool shape of second order triangular array ring, in whirlpool shape, A-frame arm produces high frequency frequency, and the outer A-frame arm of whirlpool shape produces low frequency frequency.In the interlayer of upper surface of base plate and lower surface, be provided with the coaxial feeding structure that is embedded in whirlpool shape recurrence triangle ring center.
The present invention compares and has the following advantages with conventional microstrip line:
Adopt and load meander gap technology and the folding gap battle array structure of spiral and fractal recurrence thought, and adopt gap battle array technology and fractal recurrence thought, antenna size structure is reduced greatly than antenna of the same type, realized 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, 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 gap technology, spiral foldable 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 adopt triangular structure, can effectively reduce antenna size.And make overall dimensions dwindle again 39.8% by the gap battle array loading, and the fractal recursive structure of introducing further reaches the object of miniaturization.The peripheral gap meander loading forms the first frequency, and the second frequency is exactly by the loading of interior layer gap battle array, to have been changed the new resonance frequency of current path introducing.The present invention also has multifrequency tuber function, and by complex optimum dielectric constant, the parameter of the length of vortex Triangular Arm and 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, be subject to little, the easy of integration and multi-frequency Characteristic of such environmental effects, 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 Fig. 4, adopt rectangular coordinate system, abscissa represents frequency Frequency (GHz), ordinate represents return loss intensity The return loss of the Antenna (dB).
Fig. 5 is that the embodiment of the present invention is at the E of L frequency range face directional diagram.In Fig. 5, coordinate is polar coordinates.
Fig. 6 is that the embodiment of the present invention is at the H of L frequency range face directional diagram.In Fig. 6, coordinate is polar coordinates.
Fig. 7 is that the embodiment of the present invention is at the E of S frequency range face directional diagram.In Fig. 7, coordinate is polar coordinates.
Fig. 8 is that the embodiment of the present invention is at the H of S frequency range face directional diagram.In Fig. 8, coordinate is polar coordinates.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
Referring to marking 2 in Fig. 1 and 3, figure for the dielectric constant triangle ceramic dielectric substrate that is 10 ± 0.5, in Fig. 1, the ceramic dielectric substrate length of side is 50.4 ± 0.1mm.In figure, mark 1 for loading parasitic triangle slot patch, edge on three limits of upper strata triangle patch, introduce meander loading technique, spiral slit battle array structure and fractal recurrence thought, being parallel to each limit has loaded three and has been the symmetrical outer triangle gap battle array of three arms, one end broadside in gap aligns with the triangle length of side, other end broadside is pressed close to triangle another side, and wherein gap length is 27.5 ± 0.1mm, and width is 1.0 ± 0.1mm.In the whirlpool shape triangle ring that gap surrounds outside three again, be parallel to three three of outer gap self similarities loadings and be the symmetrical interior triangle gap battle array of three arms, wherein gap length is 16.3 ± 1mm, and width is 1.0 ± 0.1mm.
Referring to marking 4 in Fig. 2 and 3, figure for triangle good conductor layer ground plate, the length of side 50.4 ± 0.1mm.In figure, mark 3 for hollow cylindrical coaxial feed, it is apart from geometric center 2.4 ± 0.1mm place of conductor layer ground plate, and 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%.Return loss (S at these two working frequency range internal antennas
11) all below 10dB, the minimum echo loss in L frequency range is 43.1644dB, the minimum echo loss in S frequency range is 24.1344dB.From every data above, can find out, in the return loss performance of whole passband internal antenna, all meet triones navigation system requirement, and performance is better than general micro-strip paster antenna, can be advantageously applied in Big Dipper 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 referring to table 1.
Table 1
Note: 1. in table, data have certain redundancy, have certain relevance between each parameter, and what provide is equalization characteristic, and the parameter of can optimizing structure 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.For example, ceramic dielectric substrate size, ceramic dielectric substrate copper-clad thickness, gap size, feed position equal error are controlled in 2%, and the relative dielectric constant error of ceramic dielectric substrate is while being controlled in 5%, and the parameters of antenna changes little.
Claims (10)
1. band is across the parasitic triangle multi-arm antenna of arm slot-coupled, it is characterized in that being provided with substrate, at upper surface of base plate, be provided with triangle patch, described triangle patch is that parasitic V-belt is across arm slot-coupled radiation patch, triangle patch is provided with spiral slit battle array, and the edge on three limits of triangle patch is parallel to each three of limit loading and is the symmetrical outer triangle gap battle array of three arms, one end broadside in gap aligns with the triangle length of side, and the other end broadside in gap is pressed close to triangle another side; In the whirlpool shape triangle ring that gap surrounds outside three, be parallel to three three of outer gap self similarities loadings and be the symmetrical interior triangle gap battle array of three arms; At base lower surface, lay triangle good conductor layer as ground plate, and establishing circular hole apart from triangle good conductor layer center, for coaxial feed.
2. as claimed in claim 1 with the parasitic triangle 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 can be 6～20, and preferably 9.5～10.5.
3. as claimed in claim 1 with the parasitic triangle 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, preferred length of side 50.4mm, thickness 3mm.
4. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, it is characterized in that the gap length of described outer triangle gap battle array is 21～38mm, width is 0.8～1.2mm, and preferred length is 27.5mm, and width is 1.0mm.
5. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, it is characterized in that the gap length of described interior triangle gap battle array is 13～24mm, width is 0.8～1.2mm, and preferred length is 16.3mm, and width is 1.0mm.
6. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, the length of side that it is characterized in that described triangle good conductor layer is 50～55mm, preferably 50.4mm.
7. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, it is characterized in that described circular hole is 2～2.5mm apart from the geometric center of triangle good conductor layer, preferred 2.4mm, the diameter of described circular hole can be 0.8～1.2mm, preferably 1.0mm.
8. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, it is characterized in that described good conductor adopts copper or silver.
9. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, it is characterized in that three arms in the symmetrical outer triangle gap battle array of described three arms interlock and are coupled by 60 ° ± 3 °, between each triangle, by 60 ° ± 3 °, across arm recurrence, be coupled into the fractal whirlpool shape of second order triangular array ring, in whirlpool shape, A-frame arm produces high frequency frequency, and the outer A-frame arm of whirlpool shape produces low frequency frequency.
10. as claimed in claim 1 with the parasitic triangle multi-arm antenna across arm slot-coupled, it is characterized in that being provided with the coaxial feeding structure that is embedded in whirlpool shape recurrence triangle ring center in the interlayer of described upper surface of base plate and lower surface.
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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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654588A (en) * | 2016-11-21 | 2017-05-10 | 集美大学 | Triangular ring micro-strip antenna |
| CN106961002A (en) * | 2017-03-10 | 2017-07-18 | 南京航空航天大学 | Suitable for the planar two axial mode helical antenna of RFID tag |
| 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 |
| CN108232445A (en) * | 2018-01-30 | 2018-06-29 | 厦门大学嘉庚学院 | Triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of work |
| CN109904604A (en) * | 2019-02-20 | 2019-06-18 | 湖南大学 | A kind of antenna |
| CN110416722A (en) * | 2019-08-29 | 2019-11-05 | 南京信息工程大学 | A kind of 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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| 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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- 2014-01-04 CN CN201410004354.3A patent/CN103700946B/en not_active Expired - Fee Related
Patent Citations (3)
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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 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654588A (en) * | 2016-11-21 | 2017-05-10 | 集美大学 | Triangular ring micro-strip antenna |
| CN106654588B (en) * | 2016-11-21 | 2019-07-02 | 集美大学 | A kind of triangular ring microstrip antenna |
| CN106961002A (en) * | 2017-03-10 | 2017-07-18 | 南京航空航天大学 | Suitable for the planar two axial mode helical antenna of RFID tag |
| 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 |
| 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 |
| CN108232445A (en) * | 2018-01-30 | 2018-06-29 | 厦门大学嘉庚学院 | Triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of work |
| 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 |
| CN109904604A (en) * | 2019-02-20 | 2019-06-18 | 湖南大学 | A kind of antenna |
| CN109904604B (en) * | 2019-02-20 | 2020-09-08 | 湖南大学 | Antenna |
| CN110416722A (en) * | 2019-08-29 | 2019-11-05 | 南京信息工程大学 | A kind of equilateral triangle ring structure gap broadband 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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