CN206250377U - A kind of multifrequency point broad beam circular polarisation loop antenna - Google Patents
A kind of multifrequency point broad beam circular polarisation loop antenna Download PDFInfo
- Publication number
- CN206250377U CN206250377U CN201621237048.5U CN201621237048U CN206250377U CN 206250377 U CN206250377 U CN 206250377U CN 201621237048 U CN201621237048 U CN 201621237048U CN 206250377 U CN206250377 U CN 206250377U
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- loop antenna
- probe
- antenna
- broad beam
- loop
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Abstract
The utility model discloses a kind of multifrequency point broad beam circular polarisation loop antenna, including a metal floor；An obturator being made up of grounded metal wall is provided with the metal floor；It is disposed with the first loop antenna, the second loop antenna, the 3rd loop antenna and the 4th loop antenna in the obturator from top to down, described the first loop antenna, the second loop antenna, the 3rd loop antenna and the arrangement of the 4th loop antenna concentric layers, and girth is sequentially reduced.The multifrequency point broad beam circular polarized loop vee simple structure that the utility model is realized, low manufacture cost；Multiple working frequency points are realized using single feedback, feed structure complexity is reduced；Can realize that multifrequency point works in wider frequency segment limit using " η " shape structure probe feed, larger frequency ratio can be obtained；Antenna can realize broad beam and circular polarisation in multiple working frequency points.
Description
Technical field
The utility model belongs to loop aerial technical field, specifically a kind of multifrequency point broad beam circular polarisation ring day
Line.
Background technology
Satellite navigation and location system has real-time, high accuracy, round-the-clock advantage, in national economy and human lives
With important effect.In satellite navigation and location system, before antenna is as the terminal and reception electromagnetic wave of transmitting electromagnetic wave
, there is important influence at end to the performance of system.
With the development of satellite navigation system, its working frequency range gradually increases, for example Big Dipper generation navigation system uplink
Road is located at the 1615.68MHz of L-band, and downlink is located at the 2491.75MHz of S-band；Navigated in subsequent Beidou II and be
Three frequency range B1s (1561.098MHz), B2 (1191.795MHz), B3 of the working frequency range extension positioned at L-band in system
(1268.52MHz).And with the raising of satellite navigation system integrated level, the separate antennas of different frequent points are worked in originally gradually
The multifrequency point antenna substitution being integrated, therefore the requirement of multifrequency point is proposed to antenna system；Meanwhile, in satellites such as the GPS/ Big Dippeves
In navigation positioning system, usually require that antenna can receive the signal of aeronautical satellite transmitting in larger spatial dimension, now
It is required that antenna has low elevation gain higher, the requirement of broad beam is proposed to antenna system；Additionally, being defended in GPS/ Big Dippeves etc.
In order to better ensure that real-time and all weather operations of system in star navigation positioning system, use circular polarized antenna with
Reduce the influence of multipath reflection and suppress the depolarisation effect that the weathers such as misty rain cause.To sum up, satellite navigation and location system pair
Antenna proposes the requirement of multifrequency point, broad beam and circular polarisation.
Loop aerial is a kind of antenna type being widely used, with other kinds of antenna structure such as microstrip antenna, spiral shell
Rotation antenna etc. is compared, loop antenna simple structure, and size is smaller, light weight, low cost of manufacture.Meanwhile, loop aerial can be utilized
Typography manufacture is realized, to meet the requirement such as low section, high accuracy.Due on loop aerial electric current along antenna structure in a ring
Distribution, therefore loop antenna is easily achieved the circular polarization radiation of single antenna.Additionally, loop antenna structure can also it is tired folded by multilayer,
Realize that multifrequency point is integrated with the method such as layer nesting and antenna fluting.At present, while having multifrequency point, broad beam, circular polarisation concurrently
The loop aerial document and patent of energy are not reported, and it studies and design the property to improving the satellite navigation systems such as the GPS/ Big Dippeves
Can have great importance.
Utility model content
The purpose of this utility model be directed to prior art presence deficiency, there is provided one kind have concurrently multifrequency point, broad beam and
Circular polarisation loop antenna.
Technical scheme：The technical scheme that the utility model solve problem is used for：A kind of multifrequency point broad beam circular polarisation
Loop antenna, including a metal floor；An obturator being made up of grounded metal wall is provided with the metal floor；In the obturator
The first loop antenna, the second loop antenna, the 3rd loop antenna and the 4th loop antenna, described the first ring day are disposed with from top to down
Line, the second loop antenna, the 3rd loop antenna and the 4th loop antenna concentric layers are arranged, and girth is sequentially reduced；First loop antenna sets
Put in outermost layer, the 4th loop antenna is arranged on innermost layer；A feedback is also equipped with the obturator that described grounded metal wall is constituted
Electric coaxial, the coaxial outer wall of the feed is connected with grounded metal wall, and the coaxial top of feed is additionally provided with metal Coupling spy
Pin.
Further, described grounded metal wall is set to rectangular wall or annular wall, the envelope being made up of grounded metal wall
The cross sectional shape of closure is set to square or circular accordingly；And tetra- loop antenna lowest operating frequencies of the Zhou Changwei in the section
Corresponding 1.2 λ -1.5 λ, the height of grounded metal wall is corresponding 0.31 λ -0.5 λ of four loop antenna lowest operating frequencies, wall thickness
It is 0.01mm-0.5mm；And the first loop antenna, the second loop antenna, the 3rd loop antenna and the 4th loop antenna set in obturator are then
It is set to the square metal ring of square structure or the metal ring of circular ring structure accordingly.
Further, the same point of the first described loop antenna, the second loop antenna, the 3rd loop antenna and the 4th loop antenna is equal
Minor matters are provided with, the minor matters on each loop antenna are that transverse horizontal is set, and the straight line that minor matters are extended both passes through respective ring
The center or the center of circle of antenna, and the minor matters on outermost first loop antenna are horizontal-extending laterally；And the second loop antenna,
Minor matters on three loop antennas and the 4th loop antenna are horizontal-extending to inner side.
Further, described metal Coupling probe and feed is coaxially arranged under outermost first loop antenna
Side；And radial direction angle of the feed coaxially between minor matters is 45 °.
Further, " η " shape coupled structure that described metal Coupling probe is, the metal Coupling probe includes probe end
End the probe stage casing being connected with probe end and the probe front being connected with probe stage casing, probe end therein are same with feed
The inner core of axle is connected, and probe stage casing then be arranged in parallel with the first loop antenna.
Further, the length difference of the first described loop antenna, the second loop antenna, the 3rd loop antenna and the 4th loop antenna
It is set to 0.9 λ -1.1 λ of correspondence working frequency；Highly it is respectively set to 0.09 λ -0.3 λ of correspondence working frequency；Line width is set
It is 1mm-5mm.
Further, the minor matters length on first loop antenna, the second loop antenna, the 3rd loop antenna and the 4th loop antenna
The 0-0.2 λ of respective loop antenna working frequency are corresponded to respectively.
Further, the height of described probe end is corresponding 0.09 λ -0.29 λ of the minimum frequency of loop antenna, in probe
The length of section is corresponding 0.01 λ -0.4 λ of the minimum frequency of loop antenna, and probe front is highly for the minimum frequency of loop antenna is corresponding
0.08 λ -0.29 λ, probe diameter is 0.5mm-2mm.
Beneficial effect：The utility model has the advantages that：Compared with prior art, what the utility model was realized is more
Frequency broad beam circular polarized loop vee simple structure, low manufacture cost；Multiple working frequency points are realized using single feedback, is reduced
Feed structure complexity；Can realize that multifrequency point works in wider frequency segment limit using " η " shape structure probe feed, can obtain
Obtain larger frequency ratio；Antenna can realize broad beam and circular polarisation in multiple working frequency points.
Brief description of the drawings
Fig. 1 is the utility model structural perspective；
Fig. 2 is the utility model structure top view；
Fig. 3 is the utility model structure left view；
Fig. 4 is the utility model structural front view；
Return loss plot when Fig. 5 the utility model is used；
Fig. 6 is four axles ratio figures of working frequency points when the utility model is used；
Fig. 7 is normalization antenna pattern when the utility model is used in first job frequency；
Fig. 8 for when the utility model is used in second normalization antenna pattern of working frequency points；
Fig. 9 for when the utility model is used in the 3rd normalization antenna pattern of working frequency points；
Figure 10 for when the utility model is used in the 4th normalization antenna pattern of working frequency points.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is further elucidated, the present embodiment is with the utility model
Implemented under premised on technical scheme, it should be understood that these embodiments are merely to illustrate the utility model rather than limit this reality
With new scope.
As shown in Figure 1 to Figure 4, a kind of multifrequency point broad beam circular polarisation loop antenna, an including metal floor 1；On the metal floor 1
It is provided with an obturator being made up of grounded metal wall 2；The first loop antenna 3, the are disposed with the obturator from top to down
Two loop antennas 4, the 3rd loop antenna 5 and the 4th loop antenna 6, described the first loop antenna 3, the second loop antenna 4, the 3rd loop antenna 5
It is sequentially reduced with the arrangement of the concentric layers of the 4th loop antenna 6, and girth；First loop antenna 3 is arranged on outermost layer, the 4th loop antenna 6
It is arranged on innermost layer；A feed coaxial 7 is also equipped with the obturator that described grounded metal wall 2 is constituted, the feed coaxial 7
Outer wall is connected with grounded metal wall 2, and the top of feed coaxial 7 is additionally provided with a metal Coupling probe 8.
Grounded metal wall 2 is set to rectangular wall or annular wall, the cross sectional shape of the obturator being made up of grounded metal wall 2
It is corresponding to be set to square or circular；And corresponding 1.2 λ -1.5 of tetra- loop antenna lowest operating frequencies of the Zhou Changwei in the section
λ, the height of grounded metal wall 2 is corresponding 0.31 λ -0.5 λ of four loop antenna lowest operating frequencies, and wall thickness is 0.01mm-
0.5mm；And the first loop antenna 3 of setting, the second loop antenna 4, the 3rd loop antenna 5 and the 4th loop antenna 6 are then corresponding in obturator
Be set to the square metal ring of square structure or the metal ring of circular ring structure.
The same point of the first loop antenna 3, the second loop antenna 4, the 3rd loop antenna 5 and the 4th loop antenna 6 is provided with minor matters
9, the minor matters 9 on each loop antenna are that transverse horizontal is set, and the straight line that minor matters 9 are extended is both passed through in respective loop antenna
The heart or the center of circle, and the minor matters 9 on outermost first loop antenna 3 are horizontal-extending laterally；And the second loop antenna 4, the 3rd ring
Minor matters 9 on the loop antenna 6 of antenna 5 and the 4th are horizontal-extending to inner side.
Metal Coupling probe 8 and feed coaxial 7 are arranged at the lower section of outermost first loop antenna 3；And feed coaxial 7
It it is 45 ° with the radial direction angle between minor matters 9；" η " shape coupled structure that metal Coupling probe 8 is, the metal Coupling probe 8 includes
Probe stage casing 11 that probe end 10 is connected with probe end 10 and the probe front 12 being connected with probe stage casing 11, it is therein
Probe end 10 is connected with the inner core of feed coaxial 7, and probe stage casing 11 then be arranged in parallel with the first loop antenna 3.
The length of the first loop antenna 3, the second loop antenna 4, the 3rd loop antenna 5 and the 4th loop antenna 6 is respectively set to correspondence
0.9 λ -1.1 λ of working frequency；Highly it is respectively set to 0.09 λ -0.3 λ of correspondence working frequency；Line width is set to 1mm-5mm；
The length of minor matters 9 on first loop antenna 3, the second loop antenna 4, the 3rd loop antenna 5 and the 4th loop antenna 6 corresponds to respective ring day respectively
The 0-0.2 λ of line working frequency；The height of probe end 10 is corresponding 0.09 λ -0.29 λ of the minimum frequency of loop antenna, probe stage casing
Length be corresponding 0.01 λ -0.4 λ of the minimum frequency of loop antenna, probe front highly be the minimum frequency of loop antenna corresponding 0.08
λ -0.29 λ, probe diameter is 0.5mm-2mm.
Embodiment 1
As shown in figure 1, metal floor 1 is set to circular metal floor in the present embodiment, the circular metal floor it is straight
Footpath is 190mm, and thickness is 0.25mm；Grounded metal wall 2 sets rectangular metallic walls, is made up of the grounded metal wall of the rectangle
Obturator be square body, the cross section of the obturator is square, and the Zhou Changwei 360mm of the obturator are highly 36mm, wall
Thickness is set to 0.02mm；Four loop antennas in obturator are all provided with being set to square-shaped metal ring, and the first loop antenna 3, the second ring
The girth of antenna 4, the 3rd loop antenna 5 and the 4th loop antenna 6 is respectively set to 234mm, 196mm, 165mm, 124.64mm, height
23mm, 18mm, 9mm, 5mm are followed successively by, line width is 1.2mm, and thickness is 0.02mm.
As shown in Fig. 2 the right side ring arm of the first loop antenna 3, the second loop antenna 4, the 3rd loop antenna 5 and the 4th loop antenna 6
Minor matters 9 are provided with 13 point midway, the extension laterally of the horizontal cross of minor matters 9 on the first loop antenna 3, and the second loop antenna
4th, the minor matters 9 on the 3rd loop antenna 5 and the 4th loop antenna 6 then extend to horizontal cross to inner side；And first loop antenna 3,
It is 5mm, 5mm, 2mm and 2mm that the length of the minor matters 9 on two loop antennas 4, the 3rd loop antenna 5 and the 4th loop antenna 6 sets gradually,
Line width is disposed as 1.2mm, and thickness is disposed as 0.02mm；The lower ring arm 14 of the first loop antenna 3 intersects with ring arm 13 thereon
Point is set to intersection vertex 15.
As shown in figure 3, feed coaxial 7 is arranged on the underface of intersection vertex 15, coaxial 7 outer wall of the feed and grounded metal
Wall is connected, and radial direction angle between minor matters 9 on the feed coaxial 7 and loop antenna is 45 °；As shown in figure 4, metal coupling
Conjunction probe 8 is " η " shape structure Coupling metal probe；It is made up of probe end 10, probe stage casing 11, probe front 12, probe end
End 10 is connected with the inner core of feed coaxial 7；Probe front 12 is shorter, and probe end 10 is more long, and probe stage casing 11 is then with first
The lower ring arm 13 of loop antenna 3 is parallel, the present embodiment and set metal Coupling probe 8 interface impedance be 50 Ω.
The present embodiment be arranged on tetra- working frequency points of 1.268GHz, 1.52GHz, 1.82GHz and 2.4GHz can launch and
Receive right-handed circular polarization ripple.Fig. 5 for the present embodiment return loss, as seen from the figure, four working frequency points 1.268GHz,
The return loss of 1.52GHz, 1.82GHz, 2.4GHz is respectively less than -10dB, therefore with good matching effect.
Fig. 6 is axle ratio of the present embodiment at four working frequency points, and Fig. 7 to Figure 10 is respectively the present embodiment in four work
Normalization antenna pattern at frequency, table 1 then lists the present embodiment axle ratio, Half Power Beamwidth at four working frequency points
Degree and zenith direction gain.
| Working frequency points | ||||
| Zenith direction axle ratio (dB) | 0.76 | 0.85 | 1.26 | 1.71 |
| Maximum gain (dB) | 6.14 | 4.92 | 5.50 | 5.43 |
| 3dB beam angles (°) | 101 | 130 | 126 | 121 |
Table 1
From table, the present embodiment has preferable circular polarisation performance in zenith direction, and axle is than respectively less than 2dB；At four
The maximum gain difference of working frequency points is respectively less than 1dB, and the gain uniformity is preferable；The 3dB beam angles of first job frequency are
101 °, the 3dB beam angles of its excess-three working frequency points are all higher than 120 °.
In sum, the multifrequency point broad beam circular polarized loop vee simple structure that the utility model is realized, cost of manufacture
It is low；Multiple working frequency points are realized using single feedback, feed structure complexity is reduced；Using " η " shape structure probe to feed can be with
Realize that multifrequency point works in wider frequency segment limit, larger frequency ratio can be obtained；Antenna can be real in multiple working frequency points
Broad beam and circular polarisation are showed.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (8)
1. a kind of multifrequency point broad beam circular polarisation loop antenna, it is characterised in that：Including a metal floor (1)；The metal floor (1)
On be provided with an obturator being made up of grounded metal wall (2)；The first loop antenna is disposed with from top to down in the obturator
(3), the second loop antenna (4), the 3rd loop antenna (5) and the 4th loop antenna (6), described the first loop antenna (3), the second loop antenna
(4), the 3rd loop antenna (5) and the 4th loop antenna (6) concentric layers are arranged, and girth is sequentially reduced；First loop antenna (3) is set
In outermost layer, the 4th loop antenna (6) is arranged on innermost layer；It is also equipped with the obturator that described grounded metal wall (2) is constituted
One feed is coaxial (7), and the outer wall of the feed coaxial (7) is connected with grounded metal wall (2), and the top of feed coaxial (7) also sets
It is equipped with a metal Coupling probe (8).
2. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 1, it is characterised in that：Described ground connection gold
Category wall (2) is set to rectangular wall or annular wall, and the cross sectional shape of the obturator being made up of grounded metal wall (2) is set accordingly
It is square or circular；And corresponding 1.2 λ -1.5 λ of tetra- loop antenna lowest operating frequencies of the Zhou Changwei in the section, grounded metal
The height of wall (2) is corresponding 0.31 λ -0.5 λ of four loop antenna lowest operating frequencies, and wall thickness is 0.01mm-0.5mm；And close
The first loop antenna (3), the second loop antenna (4), the 3rd loop antenna (5) and the 4th loop antenna (6) for setting in vivo then set accordingly
It is set to the square metal ring of square structure or the metal ring of circular ring structure.
3. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 2, it is characterised in that：The first described ring
The same point of antenna (3), the second loop antenna (4), the 3rd loop antenna (5) and the 4th loop antenna (6) is provided with minor matters (9), often
Minor matters (9) on individual loop antenna are that transverse horizontal is set, and the straight line that minor matters (9) are extended is both passed through in respective loop antenna
The heart or the center of circle, and the minor matters (9) on outermost first loop antenna (3) are horizontal-extending laterally；And the second loop antenna (4),
Minor matters (9) on 3rd loop antenna (5) and the 4th loop antenna (6) are horizontal-extending to inner side.
4. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 3, it is characterised in that：Described metal coupling
Close probe (8) and feed coaxial (7) is arranged at the lower section of outermost first loop antenna (3)；And feed coaxial (7) and minor matters
(9) the radial direction angle between is 45 °.
5. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 4, it is characterised in that：Described metal coupling
" η " shape coupled structure that probe (8) is is closed, the metal Coupling probe (8) includes probe end (10) and probe end (10) phase
Probe stage casing (11) even and the probe front (12) being connected with probe stage casing (11), probe end (10) therein are same with feed
The inner core of axle (7) is connected, and probe stage casing (11) then be arranged in parallel with the first loop antenna (3).
6. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 1, it is characterised in that：The first described ring
The length of antenna (3), the second loop antenna (4), the 3rd loop antenna (5) and the 4th loop antenna (6) is respectively set to correspondence work frequency
0.9 λ -1.1 λ of rate；Highly it is respectively set to 0.09 λ -0.3 λ of correspondence working frequency；Line width is set to 1mm-5mm.
7. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 3, it is characterised in that：First ring day
Minor matters (9) length on line (3), the second loop antenna (4), the 3rd loop antenna (5) and the 4th loop antenna (6) corresponds to respective ring respectively
The 0-0.2 λ of operating frequency of antenna.
8. a kind of multifrequency point broad beam circular polarisation loop antenna according to claim 5, it is characterised in that：Described probe end
The height for holding (10) is corresponding 0.09 λ -0.29 λ of the minimum frequency of loop antenna, and the length in probe stage casing is the minimum frequency of loop antenna
Corresponding 0.01 λ -0.4 λ, probe front is highly corresponding 0.08 λ -0.29 λ of the minimum frequency of loop antenna, and probe diameter is
0.5mm-2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237048.5U CN206250377U (en) | 2016-11-15 | 2016-11-15 | A kind of multifrequency point broad beam circular polarisation loop antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237048.5U CN206250377U (en) | 2016-11-15 | 2016-11-15 | A kind of multifrequency point broad beam circular polarisation loop antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250377U true CN206250377U (en) | 2017-06-13 |
Family
ID=58999571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621237048.5U Expired - Fee Related CN206250377U (en) | 2016-11-15 | 2016-11-15 | A kind of multifrequency point broad beam circular polarisation loop antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206250377U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532245A (en) * | 2016-11-15 | 2017-03-22 | 镇江中安通信科技有限公司 | Multi-frequency point and wide-beam circular polarization loop antenna |
| CN110212300A (en) * | 2019-05-22 | 2019-09-06 | 维沃移动通信有限公司 | A kind of antenna element and terminal device |
| CN110388984A (en) * | 2018-04-18 | 2019-10-29 | 中国科学院沈阳自动化研究所 | A kind of broadband terahertz wave detector |
| CN110635243A (en) * | 2019-09-06 | 2019-12-31 | 维沃移动通信有限公司 | Antenna unit and electronic equipment |
| CN113644446A (en) * | 2021-08-31 | 2021-11-12 | 维沃移动通信有限公司 | Electronic device |
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2016
- 2016-11-15 CN CN201621237048.5U patent/CN206250377U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532245A (en) * | 2016-11-15 | 2017-03-22 | 镇江中安通信科技有限公司 | Multi-frequency point and wide-beam circular polarization loop antenna |
| CN106532245B (en) * | 2016-11-15 | 2023-05-16 | 江苏道博信息技术有限公司 | Multi-frequency point wide wave beam circular polarization loop antenna |
| CN110388984A (en) * | 2018-04-18 | 2019-10-29 | 中国科学院沈阳自动化研究所 | A kind of broadband terahertz wave detector |
| CN110212300A (en) * | 2019-05-22 | 2019-09-06 | 维沃移动通信有限公司 | A kind of antenna element and terminal device |
| CN110212300B (en) * | 2019-05-22 | 2021-05-11 | 维沃移动通信有限公司 | Antenna unit and terminal equipment |
| KR20220002694A (en) * | 2019-05-22 | 2022-01-06 | 비보 모바일 커뮤니케이션 컴퍼니 리미티드 | Antenna unit and terminal equipment |
| KR102614892B1 (en) | 2019-05-22 | 2023-12-15 | 비보 모바일 커뮤니케이션 컴퍼니 리미티드 | Antenna units and terminal equipment |
| CN110635243A (en) * | 2019-09-06 | 2019-12-31 | 维沃移动通信有限公司 | Antenna unit and electronic equipment |
| CN113644446A (en) * | 2021-08-31 | 2021-11-12 | 维沃移动通信有限公司 | Electronic device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20191115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |