CN113871854A - Ultra-bandwidth anti-interference high-gain circularly polarized GPS (Global positioning System) elastic sheet antenna - Google Patents
Ultra-bandwidth anti-interference high-gain circularly polarized GPS (Global positioning System) elastic sheet antenna Download PDFInfo
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- CN113871854A CN113871854A CN202111093917.7A CN202111093917A CN113871854A CN 113871854 A CN113871854 A CN 113871854A CN 202111093917 A CN202111093917 A CN 202111093917A CN 113871854 A CN113871854 A CN 113871854A
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- 239000000758 substrate Substances 0.000 claims abstract description 26
- 239000012634 fragment Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000010287 polarization Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000919 ceramic Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
The invention discloses an ultra-bandwidth anti-interference high-gain circularly polarized GPS (global positioning system) elastic sheet antenna which comprises a square elastic sheet and a substrate, wherein the square elastic sheet comprises a feed pin extending downwards, four side edges of the square elastic sheet are respectively provided with a grounding pin bent downwards, the substrate is provided with a feed jack and four grounding jacks, the feed pin penetrates through the feed jack and is fixedly welded with the feed jack, the four grounding pins respectively penetrate through the four grounding jacks, the grounding pins are fixedly welded with the grounding jacks, and the square elastic sheet is supported above the substrate by virtue of the feed pin and the grounding pin. The invention has the advantages of simple structure, low cost, no need of ceramic structure, easy production and manufacture, beautiful appearance and convenient wiring, and better meets the application requirements.
Description
Technical Field
The invention relates to an antenna, in particular to an ultra-bandwidth anti-interference high-gain circularly polarized GPS dome antenna.
Background
With the development of the communication industry, various products are in endless, the environment of the antenna is more complicated due to the increase of modules, and people have a higher pursuit on the stability, the interference resistance, the miniaturization and the application range of the antenna. The application of the GPS antenna is very common, and almost relates to various aspects of daily life, especially in recent years, a satellite navigation application product represented by the GPS antenna can quickly become an important information source of the modern information society because the GPS antenna can easily provide position, speed and time information, and becomes one of national infrastructures in the information era.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an ultra-bandwidth anti-interference high-gain circularly polarized GPS dome antenna which does not need a ceramic structure, is easy to manufacture, has low cost, attractive appearance, convenient wiring and higher antenna efficiency, and aims to overcome the defects of the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme.
The utility model provides an anti-interference high-gain circular polarization GPS shell fragment antenna of super bandwidth, its is including square shell fragment and base plate, square shell fragment is including downwardly extending's feed foot, four sides of square shell fragment are formed with the ground connection foot of buckling downwards respectively, a feed jack and four ground connection jacks have been seted up on the base plate, the feed foot passes feed jack and two welded fastening, and four ground connection feet pass four ground connection jacks respectively, just the ground connection foot with ground connection jack welded fastening borrows by the feed foot with the ground connection foot will square shell fragment support in the top of base plate.
Preferably, a first notch is formed in the square elastic sheet, the first notch extends to the edge of the square elastic sheet, and the feed pin extends downwards from the second end of the first notch.
Preferably, a second notch is formed in the square elastic piece, and the second notch is a rectangular notch.
Preferably, the second notch is disposed perpendicular to the first notch.
Preferably, a convex part is formed at the lower end edge of the grounding pin, and the convex part is mutually clamped with the grounding jack.
Preferably, auxiliary pads are respectively arranged on two sides of the grounding jack.
Preferably, the auxiliary pad is arranged on one side of the substrate, which faces away from the square elastic sheet.
Preferably, the two sides of the front and the back of the substrate are respectively provided with a grounding area.
Preferably, a plurality of metalized through holes are formed in the substrate, and the grounding areas on the front side and the back side of the substrate are connected through the metalized through holes.
Preferably, the square elastic sheet is a copper sheet, and the substrate is an FR4 substrate.
In the ultra-wideband anti-interference high-gain circularly polarized GPS elastic sheet antenna disclosed by the invention, the square elastic sheet is provided with the feed pin and the four grounding pins which extend downwards, and the square elastic sheet is supported above the substrate by utilizing the feed pin and the grounding pins.
Drawings
FIG. 1 is a first structural diagram of a GPS dome antenna of the present invention before assembly;
FIG. 2 is a second structural diagram of the GPS dome antenna of the present invention before assembly;
FIG. 3 is a perspective view of a square spring;
FIG. 4 is a simulation graph of S11 of the GPS dome antenna of the present invention;
FIG. 5 is a VSWR simulation graph of the GPS dome antenna of the present invention;
FIG. 6 is a graph showing an axial ratio simulation of the GPS dome antenna of the present invention;
FIG. 7 is a gain test chart of the GPS dome antenna according to the present invention;
FIG. 8 is a gain test chart of the XOY plane of the GPS dome antenna of the present invention;
FIG. 9 is a gain test chart of the XOZ plane of the GPS dome antenna of the present invention;
fig. 10 is a gain test chart of the XOZ plane of the GPS shrapnel antenna according to the present invention.
Detailed Description
The invention is described in more detail below with reference to the figures and examples.
The invention discloses an ultra-bandwidth anti-interference high-gain circularly polarized GPS (global positioning system) elastic sheet antenna, which is shown by combining figures 1 to 3 and comprises a square elastic sheet 1 and a substrate 2, wherein the square elastic sheet 1 comprises a feed pin 10 extending downwards, four side edges of the square elastic sheet 1 are respectively provided with a grounding pin 11 bent downwards, the substrate 2 is provided with a feed jack 20 and four grounding jacks 21, the feed pin 10 penetrates through the feed jack 20 and is fixedly welded with the feed jack 20, the four grounding pins 11 respectively penetrate through the four grounding jacks 21, the grounding pins 11 are fixedly welded with the grounding jacks 21, and the square elastic sheet 1 is supported above the substrate 2 by means of the feed pin 10 and the grounding pins 11.
In the antenna, the square elastic sheet 1 is provided with the feed pin 10 and the four grounding pins 11 which extend downwards, and the square elastic sheet 1 is supported above the substrate 2 by the feed pin 10 and the grounding pins 11.
As a preferred structure, a first notch 12 is formed in the square elastic sheet 1, a first end of the first notch 12 extends to the edge of the square elastic sheet 1, and the feeding pin 10 extends downward from a second end of the first notch 12. One function of the first notch 12 is to facilitate the processing and manufacturing of antenna feed, and the other function is to effectively adjust the return loss S11 and the standing-wave ratio VSWR of the antenna, increase the transmission distance of current through the notch, significantly increase the coupling between currents, and better meet the requirement of miniaturized antennas.
In this embodiment, the square elastic sheet 1 is provided with a second notch 13, and the second notch 13 is a rectangular notch. Further, the second notch 13 is disposed perpendicular to the first notch 12. The structure of the second notch 13 is favorable for generating circularly polarized waves, and the feeding point achieves the effect of adjusting the axial ratio and the polarization direction on the diagonal line by slotting on the X axis.
In the square elastic sheet 1 with the structure, the radiation part of the antenna is a square copper sheet with the length of 24 × 24mm, four grounding points are arranged, and two electromagnetic waves with the phase angle difference of 90 are formed while the antenna is fixed so as to form a circularly polarized waveform.
In this embodiment, a convex portion 110 is formed at a lower end edge of the ground pin 11, and the convex portion 110 and the ground insertion hole 21 are engaged with each other. The convex part 110 can be conveniently inserted and welded, and the production efficiency is improved.
Preferably, auxiliary pads 22 are respectively disposed at both sides of the ground insertion hole 21. Furthermore, the auxiliary pad 22 is disposed on a side of the substrate 2 facing away from the square spring plate 1.
In the above structure, the auxiliary pads 22 are respectively provided on both sides of each ground insertion hole 21, and the two auxiliary pads 22 are used for adding an electrical bridge. Secondly, the four ground jacks 21 are grouped in pairs to form a set which is beneficial to generating waves with a phase angle difference of 90 degrees, and in addition, more selectivity is provided for adjusting the frequency band and the axial ratio of the antenna in the later period, for example, the position of an inductor is reduced to adjust the working frequency band and the phase difference of circular polarization of the antenna, the axial ratio of the antenna is beneficial to be modified in the later period, or the size of a certain inductor or capacitor is changed to adjust S11 and the central frequency.
In this embodiment, the grounding areas are respectively disposed on the front side and the back side of the substrate 2. Furthermore, a plurality of metalized through holes 23 are formed in the substrate 2, and the grounding areas on the front side and the back side of the substrate 2 are connected through the metalized through holes 23.
In the structure, the FR4 board is provided with a double-layer ground, the upper layer and the lower layer can be connected through the metalized via hole 23 of the small cylindrical structure, the connection mode is equivalent to increase of the grounding area, and in practical application, the ground area is too small for most reasons of instability of the small antenna, so the double-layer copper-clad design is adopted in the embodiment, and the stability of the performance of the antenna is improved.
Preferably, the square spring plate 1 is a copper plate, and the substrate 2 is an FR4 substrate, and has a specific size of 27mm by 1 mm.
The simulation test data for the present invention are as follows:
referring to FIG. 4, in the return loss curve of the antenna, the central frequency band is 1575MHz, and S11 of the working frequency band is all-20 DB;
referring to fig. 5, the standing wave ratio VSWR of the antenna is <2 in the operating band;
referring to fig. 6, the Axial Ratio of the antenna is <3 between-40 and 40;
referring to fig. 7, the maximum gain of the antenna is 4 DB;
as shown in fig. 8 to 10, the maximum gain in all of the 3 directions is about 3.5DB, and the antenna is omni-directional.
The ultra-wideband anti-interference high-gain circularly polarized GPS elastic sheet antenna disclosed by the invention is suitable for most application environments, and has the advantages of simple structure, high gain, strong anti-interference capability and lower cost. Compared with the conventional antenna, the antenna does not need a ceramic structure, and has the advantages of attractive appearance, convenience in wiring, higher antenna radiation (or reception) efficiency, more smooth and stable signal transmission, simple design thought and higher practicability.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the technical scope of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an anti-interference high gain circular polarization GPS shell fragment antenna of super bandwidth, its characterized in that, including square shell fragment (1) and base plate (2), square shell fragment (1) is including feed pin (10) of downwardly extending, four sides of square shell fragment (1) are formed with ground connection foot (11) of buckling downwards respectively, a feed jack (20) and four ground connection jacks (21) have been seted up on base plate (2), feed pin (10) pass feed jack (20) and two welded fastening, four ground connection jacks (21) are passed respectively in four ground connection feet (11), just ground connection foot (11) with ground connection jack (21) welded fastening, borrow by feed pin (10) with ground connection foot (11) will square shell fragment (1) support in the top of base plate (2).
2. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 1, wherein the square dome (1) is provided with a first notch (12), a first end of the first notch (12) extends to an edge of the square dome (1), and the feeding pin (10) extends downward from a second end of the first notch (12).
3. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 2, wherein the square dome (1) is provided with a second notch (13), and the second notch (13) is a rectangular notch.
4. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 3, wherein said second notch (13) is disposed perpendicular to said first notch (12).
5. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 1, wherein a convex portion (110) is formed at the lower edge of the grounding pin (11), and the convex portion (110) is engaged with the grounding jack (21).
6. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 1, wherein the grounding jack (21) is provided with auxiliary pads (22) on both sides.
7. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 6, wherein said auxiliary bonding pad (22) is disposed on a side of said substrate (2) facing away from said square dome (1).
8. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 1, wherein the grounding regions are respectively disposed on the front and back sides of the substrate (2).
9. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 8, wherein a plurality of metalized through holes (23) are formed on the substrate (2), and the grounding areas on the front and back sides of the substrate (2) are connected through the metalized through holes (23).
10. The ultra-wideband anti-interference high-gain circularly polarized GPS dome antenna according to claim 1, wherein the square dome (1) is a copper sheet, and the substrate (2) is an FR4 substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093917.7A CN113871854A (en) | 2021-09-17 | 2021-09-17 | Ultra-bandwidth anti-interference high-gain circularly polarized GPS (Global positioning System) elastic sheet antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093917.7A CN113871854A (en) | 2021-09-17 | 2021-09-17 | Ultra-bandwidth anti-interference high-gain circularly polarized GPS (Global positioning System) elastic sheet antenna |
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| CN113871854A true CN113871854A (en) | 2021-12-31 |
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| CN202111093917.7A Pending CN113871854A (en) | 2021-09-17 | 2021-09-17 | Ultra-bandwidth anti-interference high-gain circularly polarized GPS (Global positioning System) elastic sheet antenna |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050099340A1 (en) * | 2003-11-12 | 2005-05-12 | Alps Electric Co., Ltd. | Circularly polarized wave antenna made of sheet metal with high reliability |
| CN2865039Y (en) * | 2006-01-23 | 2007-01-31 | 汉达精密电子(昆山)有限公司 | Plane bifrequency antenna |
| JP2013201515A (en) * | 2012-03-23 | 2013-10-03 | Furukawa Electric Co Ltd:The | Microstrip antenna |
| CN104821431A (en) * | 2015-05-06 | 2015-08-05 | 江苏军一物联网股份有限公司 | Three-dimensional antenna for ultrahigh-frequency RFID |
| CN108110437A (en) * | 2017-12-18 | 2018-06-01 | 东莞市合康电子有限公司 | Minimize tunable GPS antenna device and its production technology |
| CN207691009U (en) * | 2017-12-18 | 2018-08-03 | 东莞市合康电子有限公司 | Minimize tunable GPS antenna device |
| CN110612640A (en) * | 2017-05-01 | 2019-12-24 | 原田工业株式会社 | Antenna device |
-
2021
- 2021-09-17 CN CN202111093917.7A patent/CN113871854A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050099340A1 (en) * | 2003-11-12 | 2005-05-12 | Alps Electric Co., Ltd. | Circularly polarized wave antenna made of sheet metal with high reliability |
| CN2865039Y (en) * | 2006-01-23 | 2007-01-31 | 汉达精密电子(昆山)有限公司 | Plane bifrequency antenna |
| JP2013201515A (en) * | 2012-03-23 | 2013-10-03 | Furukawa Electric Co Ltd:The | Microstrip antenna |
| CN104821431A (en) * | 2015-05-06 | 2015-08-05 | 江苏军一物联网股份有限公司 | Three-dimensional antenna for ultrahigh-frequency RFID |
| CN110612640A (en) * | 2017-05-01 | 2019-12-24 | 原田工业株式会社 | Antenna device |
| CN108110437A (en) * | 2017-12-18 | 2018-06-01 | 东莞市合康电子有限公司 | Minimize tunable GPS antenna device and its production technology |
| CN207691009U (en) * | 2017-12-18 | 2018-08-03 | 东莞市合康电子有限公司 | Minimize tunable GPS antenna device |
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