CN209016263U - A kind of miniaturization measurement antenna - Google Patents
A kind of miniaturization measurement antenna Download PDFInfo
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- CN209016263U CN209016263U CN201821871043.7U CN201821871043U CN209016263U CN 209016263 U CN209016263 U CN 209016263U CN 201821871043 U CN201821871043 U CN 201821871043U CN 209016263 U CN209016263 U CN 209016263U
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- antenna
- circuit board
- pcb circuit
- bottom case
- installation groove
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Abstract
The utility model discloses a kind of miniaturization measurement antenna, including antenna casing, antenna, PCB circuit board, connector and water-proof ventilated device, the antenna and PCB circuit board are fixedly mounted on the inner wall of metal bottom shell.The position that layout shell ingenious in design installs screw and antenna installation screw is arranged by the waveform configuration of antenna and PCB circuit board periphery for the utility model, reduces antenna size；Low noise module design in PCB circuit board, effectively reduces circuit noise coefficient；Bottom case uses metal structure, can also reduce the influence after antenna to multi-path jamming；Waterproof, the design of ventilating structure, even if antenna for a long time outdoors under mal-condition, can still play the role of pressure in waterproof and balance antenna chamber.
Description
Technical field
The utility model relates to satellite navigation aerial field, in particular to a kind of miniaturization measures antenna.
Background technique
Measurement type antenna is the important component of high-precision satellite navigation receiver, and performance superiority and inferiority, which is directly related to, to be defended
The size of star navigation neceiver measurement accuracy.Antenna phase center variation and multipath effect are high-precision satellite navigation measuring systems
In main source of error, and the low elevation gain of antenna will affect the sensitivity of receiver.
Measurement antenna is generally made of basic element of character such as antenna body, low noise circuit and shells, and low noise circuit is to day
The signal of linear array member output carries out low noise amplification, filtering and the signal for exporting certain power and signal-to-noise ratio, to meet rear end letter
Number frequency-conversion processing.Low noise circuit is usually made of multiple filter, low-noise amplifier, the noise coefficient of low noise circuit,
Gain is the important performance reference index of antenna, is played an important role to the signal-to-noise ratio index of antenna output signal.Meanwhile with
Satellite navigation application scenarios increase, and the demand to measurement antenna miniaturization is also increasing.
Utility model content
The main purpose of the utility model is to propose a kind of miniaturization measurement antenna, it is intended to improve measurement antenna weights it is big,
The low disadvantage of shell mechanism intensity optimizes the circuit design of low noise circuit board, to meet measurement antenna under more scenes
Using.
To achieve the above object, a kind of miniaturization measures antenna, including face-piece, bottom case, antenna, PCB circuit board and connection
Device, the bottom case upper surface are provided with installation groove, the port cross-sectional face setting in wave shape of the installation groove, institute along its periphery
It states bottom case upper end and also has additional several first screw via holes and the first screw hole, several first screw via holes and the first screw
Hole is uniformly arranged on the outside of the installation groove port with inside, and the first screw via hole is set to the installation groove port
The interior recess in outside, first screw hole are set at the convex structure on the inside of the installation groove port, the face-piece lower end
Equipped with the boss being adapted to the installation groove, the boss periphery is equipped with the second screw being adapted to the first screw via hole
Hole；The PCB circuit board is set up on the inner wall of the installation groove port, and the antenna is mounted in the PCB circuit board,
The antenna and PCB circuit board periphery and the installation groove inner wall are with suitable；The antenna includes the upper layer antenna being sequentially overlapped
With lower layer's antenna, the upper layer antenna and lower layer's upper antenna surface are equipped with radiating surface, the upper layer antenna and lower layer's antenna
Radiating surface is connect by several feed probes with the PCB circuit board, and lower layer's antenna is equipped with described for wearing
The metallization VIA of layer antenna feed probes, the PCB circuit board is equipped with a low noise amplification module for second level amplification, described
Lower layer's antenna and the PCB circuit board periphery are additionally provided with first screw hole with the second suitable screw via hole；The bottom case
Bottom centre is provided with a mounting portion, and the connector is installed on the bottom case bottom, and the connector and the low noise
The output end of module connects, and a waterproof vent valve is also added in the bottom case bottom, and the waterproof vent valve is arranged in the bottom case
Bottom.
Preferably, the low noise amplification module includes several first stage amplifiers, combiner and two-stage amplifier, several described
The input terminal of first stage amplifier is connect with the feed pin one by one respectively, the output end of several first stage amplifiers and the conjunction
The input terminal of road device connects, and the output end of the combiner is connect with the input terminal of the two-stage amplifier, the second level amplification
The output end of device is connect with the connector.
Preferably, the feed probes quantity on the upper layer antenna and lower layer's antenna is disposed as four.
Preferably, the upper layer lower antenna surface is provided with the empty avoiding for lower layer's antenna feed probes end described in empty avoiding
Slot.
Preferably, the PCB circuit board bottom is provided with shielding case.
Preferably, the face-piece is set as plastic construction, and the bottom case is set as metal structure.
Compared with prior art, the utility model has the beneficial effects that the screw of fixing shell is located at installation groove port
The interior recess in outside will move in the position of the screw of fixing shell, no longer need to individually reserve a circle fixation on face-piece and bottom case
The position of shell screw saves screw the space occupied, and then reduces face-piece and bottom case size, effectively mitigation antenna weights, can
There was only the size of antennaIt is even more small.Novel low noise module design, effectively reduces circuit noise system
Number, bottom case use metal structure, can also reduce the influence after antenna to multi-path jamming.Waterproof, the design of ventilating structure, even if day
The wire length phase can still play the role of pressure in waterproof and balance antenna chamber under mal-condition outdoors.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the utility model miniaturization measurement antenna section structural schematic diagram；
Fig. 2 is the utility model bottom case schematic perspective view；
Fig. 3 is the utility model lower layer antenna schematic perspective view；
Fig. 4 is the utility model PCB circuit board schematic perspective view；
Fig. 5 is the utility model low noise amplification module working principle module map.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The utility model proposes miniaturization measure antenna, including face-piece 1, bottom case 2, antenna, PCB circuit board 3 and connection
Device 4,2 upper surface of bottom case are provided with installation groove 5 along its periphery, and the port cross-sectional face of the installation groove 5 is in wave shape to be set
It sets, 2 upper end of bottom case also has additional several first screw via holes 6 and the first screw hole 7, several first screw via holes 6
It uniformly arranges on the outside of 5 port of installation groove with inside with the first screw hole 7, and the first screw via hole 6 is set to institute
The interior recess on the outside of 5 port of installation groove is stated, first screw hole 7 is set to the convex knot on the inside of 5 port of installation groove
At structure, 1 lower end of face-piece is equipped with the boss 8 being adapted to the installation groove 5, and 8 periphery of boss is equipped with and described first
The second screw hole that screw via hole 6 is adapted to；The PCB circuit board 3 is set up on the inner wall 9 of 5 port of installation groove, described
Antenna is mounted in the PCB circuit board 3, and the antenna and 3 periphery of PCB circuit board and 5 inner wall 9 of installation groove are with suitable；
The antenna includes the upper layer antenna 10 and lower layer's antenna 11 being sequentially overlapped, 11 upper surface of the upper layer antenna 10 and lower layer's antenna
Be equipped with radiating surface 12, the radiating surface 12 of the upper layer antenna 10 and lower layer's antenna 11 by several feed probes 13 with it is described
PCB circuit board 3 connects, and lower layer's antenna 11 is equipped with the metallization for wearing 10 feed probes 13 of upper layer antenna
Hole 14, the PCB circuit board 3 are equipped with a low noise amplification module for second level amplification, lower layer's antenna 11 and PCB electricity
Plate 3 periphery in road is additionally provided with first screw hole 7 with the second suitable screw via hole 15；2 bottom centre of bottom case is provided with
One mounting portion 16, the connector 4 are installed on 2 bottom of bottom case, and the output of the connector 4 and the low noise amplification module
A waterproof vent valve 17 is also added in end connection, 2 bottom of bottom case, and the waterproof vent valve 17 is arranged in 2 bottom of bottom case.
After pressing, the installation groove 5 on boss 8 and bottom case 2 on face-piece 1 is clamped, described for the face-piece 1 and bottom case 2
Fastened by screw is continued to use outside face-piece 1 and bottom case 2, and is coated with screw glue on shell installation screw, guarantees the face-piece 1 and bottom
The leakproofness of the formation cavity of shell 2.A waterproof vent valve 17 is also added in 2 bottom of bottom case, and the waterproof vent valve 17 is arranged in
2 bottom of bottom case, can effective waterproof, and balancing antenna intracorporal pressure of antenna cavity under various adverse circumstances.
The upper layer antenna 10, lower layer's antenna 11 and PCB circuit board 3 are sequentially overlapped, upper layer antenna 10 and lower layer's antenna
11 radiating surface 12 is connect by several feed probes 13 with the PCB circuit board 3, and antenna 10 feed probes 13 in upper layer are worn
The metallization VIA 14 crossed on lower layer's antenna 11 is connect with PCB circuit board 3,3 periphery screw of lower layer's antenna 11 and PCB circuit board
It is fixedly mounted on the bottom case 2.The first screw via hole 6 uniformly arrangement on the outside of 5 port of installation groove, and it is described
Outside interior recess of the first screw via hole 6 on the outside of 5 port of installation groove, lower layer's antenna 11 and PCB circuit board 3
It encloses with the inner wall 9 of the installation groove 5 with fitting, when assembling face-piece 1 and bottom case 2, the screw of fixing shell is located at installation groove 5
Interior recess on the outside of port will move in the screw position of fixing shell, no longer need to individually reserve a circle on face-piece 1 and bottom case 2
The position of fixing shell screw saves screw the space occupied, and then reduces the size of face-piece 1 and 2 outer of bottom case, effectively mitigates
Antenna weights can be such that the size of antenna only hasIt is even more small.
Preferably, the low noise amplification module includes several first stage amplifiers, combiner and two-stage amplifier, several described
The input terminal of first stage amplifier is connect with the feed pin one by one respectively, the output end of several first stage amplifiers and the conjunction
The input terminal of road device connects, and the output end of the combiner is connect with the input terminal of the two-stage amplifier, the second level amplification
The output end of device is connect with the connector 4, and in the present embodiment, the low noise amplification module uses the circuit structure of second level amplification,
It can effectively reduce circuit noise coefficient, the low noise amplification module working principle is as shown in Figure 5.
Preferably, 13 quantity of feed probes on the upper layer antenna 10 and lower layer's antenna 11 is disposed as four, upper layer
Antenna 10 and lower layer's antenna 11 use four feeding schemes, to meet high accuracy positioning measurement demand.
Preferably, 10 lower surface of upper layer antenna is provided with for 11 feed probes of lower layer's antenna, 13 end described in empty avoiding
Avoiding hollow groove 18, convenient for upper layer antenna 10 install.
Preferably, 3 bottom of PCB circuit board is provided with shielding case 19, and the shielding case 19 will be in PCB circuit board 3
For module to be shielded around wherein, the mode that scolding tin can be used in the shielding case 19 is fixed on 3 bottom of PCB circuit board.Generally, electric
There can be interference module in sub- product PCB circuit board 3, interference signal can interfere the normal work of other electronic components, institute
To be shielded using shielding construction to interference signal.
Further, the face-piece 1 is set as plastic construction, and the bottom case 2 is set as metal structure, can increase antenna
Structural strength, while also helping the influence after reduced to multi-path jamming to antenna.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (6)
1. a kind of miniaturization measures antenna, including face-piece, bottom case, antenna, PCB circuit board and connector, which is characterized in that described
Bottom case upper surface is provided with installation groove, the port cross-sectional face setting in wave shape of the installation groove, the bottom case along its periphery
Upper end also has additional several first screw via holes and the first screw hole, and several first screw via holes and the first screw hole are along institute
It states and uniformly arranges on the outside of installation groove port with inside, and the first screw via hole is set on the outside of the installation groove port
Interior recess, first screw hole be set to the installation groove port on the inside of outer convex, the face-piece lower end be equipped with it is described
The boss of installation groove adaptation, the boss periphery are equipped with the second screw hole being adapted to the first screw via hole；The PCB
Circuit board rack be set to the installation groove port inner wall on, the antenna is mounted in the PCB circuit board, the antenna and
PCB circuit board periphery and the installation groove inner wall are with suitable；The antenna includes the upper layer antenna and lower layer's antenna being sequentially overlapped,
The upper layer antenna and lower layer's upper antenna surface are equipped with radiating surface, and the radiating surface of the upper layer antenna and lower layer's antenna passes through
Several feed probes are connect with the PCB circuit board, and lower layer's antenna is equipped with for wearing the upper layer antenna feed electrical resistivity survey
The metallization VIA of needle, the PCB circuit board are equipped with a low noise amplification module for second level amplification, lower layer's antenna and institute
PCB circuit board periphery is stated to be additionally provided with first screw hole with the second suitable screw via hole；The bottom case bottom centre setting
There is a mounting portion, the connector is installed on the bottom case bottom, and the output end of the connector and the low noise amplification module
A waterproof vent valve is also added in connection, the bottom case bottom, and the waterproof vent valve is arranged in the bottom case bottom.
2. miniaturization measurement antenna as described in claim 1, which is characterized in that the low noise amplification module includes that several level-ones are put
Big device, combiner and two-stage amplifier, the input terminal of several first stage amplifiers connect with the feed probes one by one respectively
It connects, the output end of several first stage amplifiers is connect with the input terminal of the combiner, the output end of the combiner and institute
The input terminal connection of two-stage amplifier is stated, the output end of the two-stage amplifier is connect with the connector.
3. miniaturization measurement antenna as described in claim 1, which is characterized in that the feedback on the upper layer antenna and lower layer's antenna
Electric probe quantity is disposed as four.
4. miniaturization measurement antenna as described in claim 1, which is characterized in that the upper layer lower antenna surface, which is provided with, to be used for
The avoiding hollow groove of lower layer's antenna feed probes end described in empty avoiding.
5. miniaturization measurement antenna as described in claim 1, which is characterized in that the PCB circuit board bottom is provided with shielding
Cover.
6. miniaturization measurement antenna as described in claim 1, which is characterized in that the face-piece is set as plastic construction, described
Bottom case is set as metal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821871043.7U CN209016263U (en) | 2018-11-13 | 2018-11-13 | A kind of miniaturization measurement antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821871043.7U CN209016263U (en) | 2018-11-13 | 2018-11-13 | A kind of miniaturization measurement antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209016263U true CN209016263U (en) | 2019-06-21 |
Family
ID=66842327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821871043.7U Active CN209016263U (en) | 2018-11-13 | 2018-11-13 | A kind of miniaturization measurement antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209016263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668600A (en) * | 2020-06-28 | 2020-09-15 | 成都海澳科技有限公司 | Split type navigation antenna |
-
2018
- 2018-11-13 CN CN201821871043.7U patent/CN209016263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668600A (en) * | 2020-06-28 | 2020-09-15 | 成都海澳科技有限公司 | Split type navigation antenna |
| CN111668600B (en) * | 2020-06-28 | 2024-04-19 | 成都海澳科技有限公司 | Split type navigation antenna |
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