CN108110437A - Minimize tunable GPS antenna device and its production technology - Google Patents
Minimize tunable GPS antenna device and its production technology Download PDFInfo
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- CN108110437A CN108110437A CN201711367509.XA CN201711367509A CN108110437A CN 108110437 A CN108110437 A CN 108110437A CN 201711367509 A CN201711367509 A CN 201711367509A CN 108110437 A CN108110437 A CN 108110437A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 23
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000005245 sintering Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- 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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
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- Waveguide Aerials (AREA)
Abstract
The present invention relates to field of antenna, and in particular to and it is a kind of to minimize tunable GPS antenna device and its production technology, including antenna body, circuit board and tuning capacitance；The antenna body include sheet for radiated electromagnetic wave radiator, be vertically connected at irradiator surface for circuit board for receiving high-frequency signal at least one antenna feeder pillar, be vertically connected at irradiator surface be used for tuning several antenna short circuit columns；The circuit board includes the main body parallel to radiator, it is vertical at body surfaces and the feed pad being connected with antenna feeder pillar, it is vertical at body surfaces and the short-circuit pad being connected with antenna short circuit column, the cabling being connected between short-circuit pad and tuning capacitance is further included, the tuning capacitance is grounded away from one end of cabling.The configuration of the present invention is simple, compact tune convenience, simple production process, suitable for large-scale production.
Description
Technical field
The present invention relates to field of antenna, more particularly to the tunable GPS antenna device of miniaturization and its production technology.
Background technology
GPS is exactly the terminal for being positioned or being navigated by receiving satellite-signal, and day must just be used by receiving signal
Line.GPS satellite signal is divided into L1 and L2, and frequency is respectively 1575.42MHZ and 1228MHZ, and wherein L1 is open civilian letter
Number, signal is Circular Polarisation.Signal strength is -166dBm or so, belongs to weaker signal.These features, which determine, to be
The receiving of GPS signal prepares special antenna, i.e. GPS antenna.
Early stage GPS antenna is mainly various helical antennas, and the size of this antenna is bigger.Later with ceramic post sintering skill
Art slowly mature, GPS antenna is based on the media ceramic antenna of various sizes.The technical process of media ceramic antenna
It is that ceramic powders and a certain proportion of resin are struck out into definite shape first, ceramics is formed originally by more than 1000 degree high temperature sinterings
Body finally forms antenna in the corresponding metal pattern of ceramic body printed thereon.
There are two shortcomings for above-mentioned technology, on the one hand, in order to reduce the size of antenna, currently used method
It is to be loaded using high dielectric constant ceramic material.The technical process of media ceramic antenna is first by ceramic powders and certain
The resin of ratio strikes out definite shape, ceramic body is formed by more than 1000 degree high temperature sinterings, then on ceramic body
Corresponding metal pattern is printed, finally is sintered to form antenna again, usual such antenna also needs to welding metal probe and is used for
Power-up.It also needs to manually adjust metal pattern according to different use environments, to obtain optimum performance.The technique of such antenna in a word
It is extremely complex, to pass through many flows, and man-made assembly is needed to debug, cost is higher.Antenna is one kind to installation environment around
Sensitive device, media ceramic antenna in actual use, it is necessary to finely tune the size of pattern to be tuned, it is general the fact that
It needs manually to go abrasive pattern with drill bit, has not only lost time but also increased cost, cause to tune low efficiency, high labor cost, discomfort
For mass producing.Second aspect, overall volume is larger, is unfavorable for the miniaturization of antenna.
The content of the invention
To solve the above problems, the present invention provide a kind of simple in structure, compact, tuning convenience, simple production process,
Suitable for the tunable GPS antenna device of miniaturization and its production technology of large-scale production.
The technical solution adopted in the present invention is：Tunable GPS antenna device is minimized, including antenna body, circuit board
And tuning capacitance；The antenna body include sheet for radiated electromagnetic wave radiator, be vertically connected at irradiator surface
At least one antenna feeder pillar for circuit board for receiving high-frequency signal, be vertically connected at irradiator surface for tuning it is several
A antenna short circuit column；The circuit board include parallel to radiator main body, be vertical at body surfaces and with antenna feeder pillar
The feed pad of connection is vertical at body surfaces and the short-circuit pad being connected with antenna short circuit column, further includes and be connected to short circuit
Cabling between pad and tuning capacitance, the tuning capacitance are grounded away from one end of cabling.
To being further improved as the radiator is square or circular for above-mentioned technical proposal.
To being further improved as the radiator is square, and antenna short circuit column is four, is divided for above-mentioned technical proposal
Wei Yu square four vertex.
To being further improved as the antenna feeder pillar is two, and two antenna feeder pillars are opposite for above-mentioned technical proposal
In square diagonal it is symmetrical, and antenna feeder pillar apart from the antenna feeder pillar it is nearest while projection be located at this while in
At point.
To above-mentioned technical proposal be further improved for, the radiator, antenna short circuit column and antenna feeder pillar one into
Type, antenna short circuit column and antenna feeder pillar are stamped and formed out by radiator.
The production technology of tunable GPS antenna device is minimized, is comprised the following steps, a, the radiator for producing sheet lead to
The mode of punching press is crossed in irradiator surface integrated antenna short circuit column and antenna feeder pillar, obtains antenna body, b, sense circuit
Plate realizes the welding of the antenna feeder pillar of circuit board and antenna body by feed pad, and circuit board is realized by short-circuit pad
With the welding of the antenna short circuit column of antenna body, being electrically connected for short-circuit pad and tuning capacitance is realized by cabling, then will tuning
The other end ground connection of capacitance, obtains antenna assembly, and c, the capacitance for changing tuning capacitance on circuit board adjust antenna body
It is humorous, to obtain required antenna performance.
To being further improved as in step a, the radiator is square, and antenna short circuit column is for above-mentioned technical proposal
Four, it is located at four vertex of square respectively, antenna feeder pillar is two, and two antenna feeder pillars are compared with square
Diagonal is symmetrical, and antenna feeder pillar apart from the antenna feeder pillar it is nearest while projection be located at this while midpoint.
Beneficial effects of the present invention are：
1st, on the one hand, antenna assembly of the invention is equipped with tuning capacitance, and tuning capacitance one end is grounded, and the other end is by walking
Line is connected to short-circuit pad, changes the capacitance of tuning capacitance on circuit board, you can realize and antenna is tuned, compared with existing
Technology by manually removing the metal pattern on mill ceramic antenna using drill bit, substantially increase tuning efficiency, tuning manner letter
Single, cost of labor is low, and tuning is efficient, is applicable to mass produce.Second aspect, since radiator is connected with several days
Line short circuit column, and pass through circuit board and tuning capacitance ground connection, the ceramic material by loading high-k is not required to, is greatly reduced
The volume of antenna is conducive to the miniaturization of antenna.The third aspect, due to being not required to manufacture ceramic body, being not required to printing gold
Metal patterns so that antenna production technology of the invention is greatly simplified, and simple production process, production cost is low, may replace existing
Helical antenna and media ceramic antenna, it is applied widely.
2nd, radiator is square or circular, and since GPS antenna is circular polarized antenna, square or circle cause feed letter
Number orthogonal thereto pattern ensures that high frequency signal amplitude is equal, so as to obtain better axis ratio characteristic and gain, is conducive to improve antenna
Comprehensive performance.
3rd, radiator is square, it is ensured that and high frequency signal amplitude is equal, so as to obtain better axis ratio characteristic and gain,
And antenna short circuit column is four, is located at four vertex of square respectively so that antenna is grounded in four vertex, into one
Step reduces the volume of antenna, and the axis ratio characteristic and gain effect that obtain are more preferable, is further conducive to improve the synthesis of antenna
Performance.
4th, antenna feeder pillar is two, compared with a traditional antenna feeder pillar, using two antenna feeder pillars, and two
A antenna feed column symmetry is set, and can form two-way high-frequency signal, and the orthogonal thereto pattern of two-way high-frequency signal, two antenna short circuits
Column compared with square diagonal it is symmetrical, antenna feeder pillar apart from the antenna feeder pillar it is nearest while projection be located at this while
Midpoint so that the amplitude of two-way high-frequency signal is equal, and phase just differs 90 °, realizes circular polarized antenna, obtains better
Axis ratio characteristic and gain are conducive to improve the comprehensive performance of antenna.
5th, radiator, antenna short circuit column and antenna feeder pillar are integrally formed, and antenna short circuit column and antenna feeder pillar are by spoke
Beam is stamped and formed out, and ceramic powders and a certain proportion of resin are struck out definite shape first compared with the prior art, warp
Cross and spend high temperature sintering more 1000 and form ceramic body, then in the corresponding metal pattern of ceramic body printed thereon, finally again into
Row sintering forms the production technology of antenna, enormously simplifies the production technology of antenna, reduces production cost.
6th, minimize the production technology of tunable GPS antenna device, simple production process, at low cost, antenna tuning is convenient,
It tunes efficient, is suitable for mass producing.
Description of the drawings
Fig. 1 is the stereogram of the present invention；
Fig. 2 is the stereogram at another visual angle of the present invention；
Fig. 3 is the top view of the present invention；
Fig. 4 is the side view of the present invention；
Fig. 5 is the equivalent schematic diagram of the antenna of the present invention；
Fig. 6 is the antenna frequency characteristic of the present invention with tuning capacitance change schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further illustrated.
As Figure 1-Figure 5, it is respectively the equivalent of different visual angles stereogram of the invention, top view, side view and antenna
Schematic diagram.
Tunable GPS antenna device 100 is minimized, including antenna body 110, circuit board 120 and tuning capacitance 130；Institute
State antenna body 110 include sheet for radiated electromagnetic wave radiator 111, be vertically connected at 111 surface of radiator and be used for
At least one antenna feeder pillar 112 of 120 high-frequency signal of circuit board for receiving is vertically connected at 111 surface of radiator for tuning
Several antenna short circuit columns 113；The circuit board 120 includes the main body 121 parallel to radiator 111, is vertical at main body
121 surfaces and the feed pad 122 being connected with antenna feeder pillar 112, be vertical at 121 surface of main body and with antenna short circuit column
The short-circuit pad 123 of 113 connections, further includes the cabling 124 being connected between short-circuit pad 123 and tuning capacitance 130, the tune
Humorous capacitance 130 is grounded away from one end of cabling 124.
Radiator 111 is square or circular, and since GPS antenna is circular polarized antenna, square or circle cause feed
The orthogonal thereto pattern of signal ensures that high frequency signal amplitude is equal, so as to obtain better axis ratio characteristic and gain, is conducive to improve day
The comprehensive performance of line.
Radiator 111 is square, it is ensured that high frequency signal amplitude is equal, so as to obtain better axis ratio characteristic and increasing
Benefit, and antenna short circuit column 113 is four, is located at four vertex of square respectively so that antenna connects in four vertex
Ground further reduces the volume of antenna, and obtain
Axis ratio characteristic and gain effect are more preferable, are further conducive to improve the comprehensive performance of antenna.
Antenna feeder pillar 113 is two, compared with a traditional antenna feeder pillar 113, using two antenna feeder pillars
113, and two antenna feeder pillars 113 are symmetrical arranged, and can form two-way high-frequency signal, and the orthogonal thereto pattern of two-way high-frequency signal,
Two antenna feeder pillars 113 are symmetrical compared with the diagonal of square, and antenna feeder pillar 113 is apart from the antenna feeder pillar 113
It is nearest while projection be located at this while midpoint so that the amplitude of two-way high-frequency signal is equal, and phase just differs 90 °, real
Existing circular polarized antenna, obtains better axis ratio characteristic and gain, is conducive to improve the comprehensive performance of antenna.
Radiator 111, antenna short circuit column 113 and antenna feeder pillar 112 are integrally formed, antenna short circuit column 113 and antenna feed
Electric column 112 is stamped and formed out by radiator 111, compared with first the rushing ceramic powders and a certain proportion of resin of the prior art
Definite shape is pressed into, ceramic body is formed by more than 1000 degree high temperature sinterings, it is then golden accordingly in ceramic body printed thereon
Metal patterns are finally sintered the production technology to form antenna again, enormously simplify the production technology of antenna, reduce and be produced into
This.
On the one hand, antenna assembly 100 of the invention is equipped with tuning capacitance 130, and 130 one end of tuning capacitance is grounded, another
End is connected to short-circuit pad 123 by cabling 124, changes the capacitance of tuning capacitance 130 on circuit board 120, you can realize to day
Line is tuned, and compared with the prior art by manually removing the metal pattern on mill ceramic antenna using drill bit, is greatly improved
Tuning efficiency, tuning manner is simple, and cost of labor is low, and tuning is efficient, is applicable to mass produce.Second aspect, by
Be connected with several antenna short circuit columns 113 in radiator 111, and pass through circuit board 120 and tuning capacitance 130 is grounded, be not required to according to
By loading the ceramic material of high-k, the volume of antenna is substantially reduced, is conducive to the miniaturization of antenna.Third party
Face, due to being not required to manufacture ceramic body, being not required to type metal pattern so that antenna production technology of the invention is greatly simplified, raw
Production. art is simple, and production cost is low, can obtain existing helical antenna and media ceramic antenna, applied widely.
The production technology of tunable GPS antenna device 100 is minimized, is comprised the following steps, a, the radiator for producing sheet
111, in 111 surface integrated antenna short circuit column 113 of radiator and antenna feeder pillar 112 by way of punching press, obtain day
Line body 110, b, sense circuit plate 120 pass through the antenna feeder pillar of the realization circuit board 120 of feed pad 122 and antenna body 110
112 welding is realized the welding of circuit board 120 and the antenna short circuit column 113 of antenna body 110 by short-circuit pad 123, passed through
Cabling 124 realizes being electrically connected for short-circuit pad 123 and tuning capacitance 130, then the other end of tuning capacitance 130 is grounded, and obtains
Antenna assembly 100, c, the capacitance for changing tuning capacitance 130 on circuit board 120, is tuned antenna body 110, to obtain
The antenna performance needed.
In step a, the radiator 111 is square, and antenna short circuit column 113 is four, is located at the four of square respectively
A vertex, antenna feeder pillar 113 are two, and two antenna feeder pillars 112 are symmetrical compared with the diagonal of square, and antenna
Feeder pillar 113 apart from the antenna short circuit column 113 it is nearest while projection be located at this while midpoint.
Minimize the production technology of tunable GPS antenna device 100, simple production process, at low cost, antenna tuning side
Just, tuning is efficient, is suitable for mass producing.
As shown in fig. 6, be the present invention antenna frequency characteristic with tuning capacitance change schematic diagram.
The tunable GPS antenna device 100 of miniaturization using the present invention, when being tuned, as long as changing on circuit board 120
The capacitance of face tuning capacitance 130, it is possible to conveniently realize tuber function.As shown in fig. 6, when antenna tuning capacitance is respectively
When 0.7pF, 0.8pF and 0.9pF, the different frequency characteristic of antenna, tuning process is simple, cost of labor is low.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. minimize tunable GPS antenna device, it is characterised in that：Including antenna body, circuit board and tuning capacitance；The day
Line body include sheet for radiated electromagnetic wave radiator, be vertically connected at irradiator surface be used for circuit board for receiving high frequency
At least one antenna feeder pillar of signal, be vertically connected at irradiator surface for tuning several antenna short circuit columns；It is described
Circuit board includes the main body parallel to radiator, is vertical at body surfaces and the feed pad being connected with antenna feeder pillar, hangs down
The straight short-circuit pad for being arranged on body surfaces and being connected with antenna short circuit column, further includes and is connected between short-circuit pad and tuning capacitance
Cabling, the tuning capacitance away from cabling one end be grounded.
2. the tunable GPS antenna device of miniaturization according to claim 1, it is characterised in that：The radiator is in pros
Shape or circle.
3. the tunable GPS antenna device of miniaturization according to claim 2, it is characterised in that：The radiator is in pros
Shape, and antenna short circuit column is four, is located at four vertex of square respectively.
4. the tunable GPS antenna device of miniaturization according to claim 3, it is characterised in that：The antenna feeder pillar is
Two, two antenna feeder pillars compared with square diagonal it is symmetrical, and antenna feeder pillar apart from the antenna feeder pillar most
It is near while projection be located at this while midpoint.
5. the tunable GPS antenna device of miniaturization according to claim 4, it is characterised in that：The radiator, antenna are short
Road column and antenna feeder pillar are integrally formed, and antenna short circuit column and antenna feeder pillar are stamped and formed out by radiator.
6. minimize the production technology of tunable GPS antenna device, it is characterised in that：Comprise the following steps, a, produce sheet
Radiator in irradiator surface integrated antenna short circuit column and antenna feeder pillar by way of punching press, obtains antenna body,
B, sense circuit plate realizes the welding of the antenna feeder pillar of circuit board and antenna body by feed pad, real by short-circuit pad
The welding of the antenna short circuit column of existing circuit board and antenna body realizes being electrically connected for short-circuit pad and tuning capacitance by cabling,
The other end of tuning capacitance is grounded again, obtains antenna assembly, c, the capacitance for changing tuning capacitance on circuit board, to antenna body
It is tuned, to obtain required antenna performance.
7. the production technology of the tunable GPS antenna device of miniaturization according to claim 6, it is characterised in that：Step a
In, the radiator is square, and antenna short circuit column is four, is located at four vertex of square, antenna feeder pillar respectively
For two, two antenna feeder pillars are symmetrical compared with the diagonal of square, and antenna feeder pillar is apart from the antenna feeder pillar
It is nearest while projection be located at this while midpoint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367509.XA CN108110437A (en) | 2017-12-18 | 2017-12-18 | Minimize tunable GPS antenna device and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367509.XA CN108110437A (en) | 2017-12-18 | 2017-12-18 | Minimize tunable GPS antenna device and its production technology |
Publications (1)
| Publication Number | Publication Date |
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| CN108110437A true CN108110437A (en) | 2018-06-01 |
Family
ID=62209928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711367509.XA Pending CN108110437A (en) | 2017-12-18 | 2017-12-18 | Minimize tunable GPS antenna device and its production technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871854A (en) * | 2021-09-17 | 2021-12-31 | 深圳市玛雅通讯设备有限公司 | Ultra-bandwidth anti-interference high-gain circularly polarized GPS (Global positioning System) elastic sheet antenna |
| CN115241635A (en) * | 2022-08-10 | 2022-10-25 | 西安电子科技大学广州研究院 | GNSS antenna |
| CN117855817A (en) * | 2024-01-18 | 2024-04-09 | 深圳汉阳天线设计有限公司 | High-precision positioning antenna and dual-frequency high-precision positioning antenna |
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