CN206976574U - A kind of structure composite type Beidou navigation antenna - Google Patents
A kind of structure composite type Beidou navigation antenna Download PDFInfo
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- CN206976574U CN206976574U CN201720902679.2U CN201720902679U CN206976574U CN 206976574 U CN206976574 U CN 206976574U CN 201720902679 U CN201720902679 U CN 201720902679U CN 206976574 U CN206976574 U CN 206976574U
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Abstract
It the utility model is related to a kind of structure composite type Beidou navigation antenna.Including aerial radiation main body, feed probes, coaxial feeder and feeding network；The feeding network is located at the lower section of aerial radiation main body and is connected by feed probes with aerial radiation main body；The feed probes pass through aerial radiation main body；The coaxial feeder is connected with feeding network；The aerial radiation main body with including lower floor's FR4 metals for setting gradually from bottom to top reflecting plate, air Stilt layer, upper strata FR4 dielectric-slabs and radiation patch unit；The radiation patch unit includes Crossed Circle structural radiation paster and four F type structural radiation pasters.The utility model realizes that antenna double star four covers frequently on single layer structure；The utility model has the advantages that low section, high axial ratio bandwidth, is suitably applied in Beidou navigation terminal device on the basis of possessing multi-frequency Characteristic.
Description
Technical field
It the utility model is related to a kind of for Big Dipper generation L frequency ranges, S frequency ranges and Beidou II B1 frequency range compatible with GPS L1 frequencies
The satellite navigation aerial of section, specially a kind of structure composite type Beidou navigation antenna.
Background technology
Beidou satellite navigation system is the global positioning satellite and communication system by China's independent research, with big-dipper satellite
The progressively foundation of navigation system and perfect, positioning and the communication technology based on Beidou satellite navigation system are developing rapidly,
Penetrate into every field and be widely used in the related applications such as military affairs, traffic, water conservancy, rescue and relief work.In order to realize more
Add accurate, stable navigation locating function, satellite navigation terminal is needed to merge different satellite navigation system information, and this requirement is defended
Star navigation terminal antenna being capable of compatible multiple satellite navigation systems.Some multisystem multifrequency antennas in the market use low Jie
The high frequency sheet material stacked structure of electric constant, the volume of such antenna is larger, section is high, weight is big, and can not meet that terminal is small-sized
The market demand of change.
The content of the invention
The purpose of this utility model is to provide a kind of structure composite type Beidou navigation antenna, and the antenna is possessing multifrequency spy
On the basis of property, also there is low section, high axial ratio bandwidth, be suitably applied in Beidou navigation terminal device.
To achieve the above object, the technical solution of the utility model is：A kind of structure composite type Beidou navigation antenna, including
Aerial radiation main body, feed probes, coaxial feeder and feeding network；The feeding network is located at the lower section of aerial radiation main body simultaneously
It is connected by feed probes with aerial radiation main body；The feed probes pass through aerial radiation main body；The coaxial feeder and feedback
Electric network connects.
In the embodiment of the utility model one, the aerial radiation main body includes the lower floor FR4 set gradually from bottom to top
Metal ground reflecting plate, air Stilt layer, upper strata FR4 dielectric-slabs and radiation patch unit；The feeding network passes through feed probes
Reflecting plate, air Stilt layer, upper strata FR4 dielectric-slabs are connected with radiation patch unit through lower floor's FR4 metals.
In the embodiment of the utility model one, the radiation patch unit includes Crossed Circle structural radiation paster and four F
Type structural radiation paster；The radiation patch unit is etched in upper strata FR4 dielectric-slabs upper surface.
In the embodiment of the utility model one, the Crossed Circle structural radiation paster includes ring attaching nested inside and outside two
Piece, two rectangles feed coupling pieces, between two rectangles feed coupling pieces annular paster nested inside and outside two, and with feedback
Electric probe is connected；Be nested in described two inside and outside nested annular pasters inside the annular paster of inside be additionally provided with four it is square
Grounded metal sheet, by grounding probe, reflecting plate is connected grounded metal sheet with lower floor FR4 metals.
In the embodiment of the utility model one, the ring attaching of inside is nested in described two inside and outside nested annular pasters
Piece is the annular paster of bending.
In the embodiment of the utility model one, the annular paster of the bending is side's annular, and annular four side midpoints are equal
Bend inwards.
In the embodiment of the utility model one, the F types structural radiation paster is located at the outer of Crossed Circle structural radiation paster
Side, the F types structural radiation paster are connected by feed probes with feeding network, and F type structural radiation pasters pass through at galianconism
Reflecting plate is connected grounding probe with lower floor FR4 metals.
In the embodiment of the utility model one, the air Stilt layer can be by Filled Dielectrics.
In the embodiment of the utility model one, the Crossed Circle structural radiation paster uses two point feeding network, and described four
Individual F types structural radiation paster uses four-point feed network.
In the embodiment of the utility model one, the two point feeding network is connected with four-point feed network by coaxial feeder
Connect；The two point feeding network uses 90 ° of electric bridges of 3dB, T-shaped power division network or Wilkinson feeding network；The four-point feed
Network is using tandem feeding network or three groups of Wilkinson feeding network networks formed or built with 90 ° of electric bridges of 3dB four
Present network.
Compared to prior art, the utility model has the advantages that：The utility model can be used not only for the Big Dipper one
Received for the transmitting of L frequency band signals and S frequency band signals, realize positioning and the short message communication function of a Big Dipper generation, moreover it can be used to north
The signal of the two generation B1 frequency ranges that struggle against and GPS L1 frequency ranges receives, and realizes Beidou II and GPS positioning function, there is provided more stable,
Accurate navigator fix service, while antenna has the advantages of low section, lightweight and high axial ratio bandwidth, can be advantageously applied to
Beidou navigation terminal device.
Brief description of the drawings
Fig. 1 is overall structure top view of the present utility model.
Fig. 2 is overall structure side view of the present utility model.
Fig. 3 is feed network structures schematic diagram of the present utility model.
Fig. 4 is B1L1 frequency ranges reflection coefficient chart of the present utility model.
Fig. 5 is that B1L1 frequency ranges axle of the present utility model compares curve map.
Fig. 6 is B1L1 band gains curve map of the present utility model.
Fig. 7 is L frequency ranges reflection coefficient chart of the present utility model.
Fig. 8 is that L frequency ranges axle of the present utility model compares curve map.
Fig. 9 is L band gains curve map of the present utility model.
Figure 10 is S frequency ranges reflection coefficient chart of the present utility model.
Figure 11 is that S frequency ranges axle of the present utility model compares curve map.
Figure 12 is S band gains curve map of the present utility model.
In figure, 1 is B1, L1 frequency range loop configuration radiation patch, and 11 be grounded metal sheet, and 111,42 be grounding probe, and 2 are
The loop configuration radiation patch of L frequency ranges, 3 be that rectangle feeds coupling piece, and 31,41 be feed probes, and 4 be the F type structure spokes of S frequency ranges
Penetrate paster, 5 be upper strata FR4 dielectric-slabs, and 6 be air Stilt layer, and 7 be lower floor's FR4 metals ground reflecting plate, and 8 be feeding network, and 81 are
Tandem feeding network, 82 be 90 ° of electric bridges of 3dB.
Embodiment
Below in conjunction with the accompanying drawings, the technical solution of the utility model is specifically described.
A kind of structure composite type Beidou navigation antenna of the present utility model, including it is aerial radiation main body, feed probes, coaxial
Feeder line and feeding network；The feeding network is located at the lower section of aerial radiation main body and passes through feed probes and aerial radiation main body
Connection；The feed probes pass through aerial radiation main body；The coaxial feeder is connected with feeding network.The aerial radiation main body
Reflecting plate, air Stilt layer, upper strata FR4 dielectric-slabs and radiation patch including lower floor's FR4 metals for setting gradually from bottom to top
Unit；The feeding network is by feed probes through lower floor's FR4 metals ground reflecting plate, air Stilt layer, upper strata FR4 dielectric-slabs
It is connected with radiation patch unit.
The radiation patch unit includes Crossed Circle structural radiation paster and four F type structural radiation pasters（Specially S frequencies
The F type structural radiation pasters of section）；The radiation patch unit is etched in upper strata FR4 dielectric-slabs upper surface.
The Crossed Circle structural radiation paster includes annular paster nested inside and outside two（Including B1, L1 positioned at internal layer
The loop configuration radiation patch of frequency range loop configuration radiation patch and the L frequency ranges of outer layer）, two rectangle feed coupling pieces, two
Between individual rectangle feed coupling piece annular paster nested inside and outside two, and it is connected with feed probes；It is described two inside and outside
It is nested in nested annular paster inside the annular paster of inside and is additionally provided with four square grounded metal sheets, grounded metal sheet is led to
Crossing grounding probe, reflecting plate is connected with lower floor FR4 metals.The grounded metal sheet can be square or other arbitrary shapes
Shape.The annular paster that inside is nested in described two inside and outside nested annular pasters is the annular paster of bending.The bending
Annular paster be side's annular, and annular four side midpoints bend inwards.
The F types structural radiation paster is located at the outside of Crossed Circle structural radiation paster, and the F types structural radiation paster leads to
Cross feed probes to be connected with feeding network, F type structural radiation pasters anti-at galianconism by grounding probe and lower floor's FR4 metals
Plate is penetrated to be connected.The F types radiation patch can be made up of arbitrary shape, such as snakelike shape F types, zigzag F types etc..
The air Stilt layer is the fixation by plastics screw or metal screws, can by Filled Dielectrics, such as foam,
Plastics etc..
The Crossed Circle structural radiation paster uses two point feeding network, and four F type structural radiations paster uses four
Point feeding network.The two point feeding network is connected with four-point feed network by coaxial feeder；The two point feeding network is adopted
With 90 ° of electric bridges of 3dB, T-shaped power division network or Wilkinson feeding network；The four-point feed network uses tandem transmission network
Network that network or three groups of Wilkinson feeding networks are formed or the four feedback networks built with 90 ° of electric bridges of 3dB.
It is specific implementation process of the present utility model below.
As Figure 1-3, the utility model provides a kind of for a Big Dipper generation, Beidou II B1 frequency ranges and GPS L1 frequencies
Section four frequency structure composite type Beidou navigation antennas, antenna include antenna body, grounding probe, feed probes, coaxial feeder and
Feeding network, the antenna body with including lower floor's FR4 metals for stacking gradually from bottom to top reflecting plate 7, air Stilt layer 6,
Upper strata FR4 dielectric-slabs 5 and radiation patch unit 1,2,4；The upper strata FR4 dielectric-slabs upper surface is provided with B1, L1 frequency of internal layer
Section loop configuration radiation patch 1, the loop configuration radiation patch 2 of the L frequency ranges in intermediate layer, four F type structure spokes of S frequency ranges of outer layer
Penetrate paster 4；Two rectangle feed coupling pieces 3 are provided between the internal layer, middle stacked loop radiation patch；The rectangle feedback
Being electrically coupled piece 3, reflecting plate is connected with feeding network 8 through lower floor's FR4 metals by feed probes 31, and feed probes 31 are with
Layer FR4 metals reflecting plate 7 do not contact；Described internal layer annular radiation patch 1 is side annular, and annular four side midpoints are equal
Bend inwards；1 four jiaos of the annular paster is internally provided with four square grounded metal sheets 11, and is all provided with the center of sheet metal 11
Short circuit metallic probe 111 is equipped with, described one end of short circuit metallic probe 111 is connected with sheet metal 11, the other end and lower floor's FR4 metals
Ground reflecting plate 7 connects；The intermediate layer aerial radiation paster 2 is side annular, and has corner cut at the outer corner of annular, at interior corner
There is supplementary angle；Described four F type structural radiations pasters 4 of outer layer are four " F " shape oscillators, described four F types structural radiation patches of outer layer
Piece 4 by being connected through lower floor's FR4 metals after feed probes 41 reflecting plate 7 with feeding network 8, feed probes 41 and lower floor
FR4 metals reflecting plate 7 do not contact；The galianconism end of four F type structural radiations paster 4 is provided with short circuit metallic probe
42, described one end of short circuit metallic probe 42 is connected with four F type structural radiations pasters 4, and the other end reflects with lower floor FR4 metals
Plate 7 connects.The lower floor FR4 metals the lower floor of reflecting plate 7 have a transmission network network layers 8, the transmission network network layers 8 are for four F
Type structural radiation paster tandem feeding network 81 and 90 ° of electric bridges 82 of 3dB for loop configuration radiation patch, it is described coaxial
Input port of the feeder line respectively with 90 ° of electric bridges 82 of tandem feeding network 81 and 3dB is connected, the feed port as antenna.
Fig. 4-Figure 12 is referred to, Fig. 4 is the reflection coefficient chart of antenna B1L1 frequency ranges.Fig. 5 is the axle ratio of B1L1 frequency ranges
Curve map, Fig. 6 are the gain curve figures of B1L1 frequency ranges.Fig. 7 is the reflection coefficient chart of antenna L frequency ranges.Fig. 8 is L frequency ranges
For axle than curve map, Fig. 9 is the gain curve figure of L frequency ranges.Figure 10 is the reflection coefficient chart of antenna S frequency ranges.Figure 11 is S frequency ranges
Axle than curve map, Figure 12 is the gain curve figure of S frequency ranges.As can be seen from the figure antenna has in B1L1, L and S frequency range
There are good impedance matching property and radiation characteristic, the transmitting-receiving of Big Dipper generation signal can be realized by embodying the antenna, while
Beidou II B1 signals and gps signal can be received, there is provided more stable, accurate navigator fix service.
Above is preferred embodiment of the present utility model, all changes made according to technical solutions of the utility model are produced
Function without departing from technical solutions of the utility model scope when, belong to the scope of protection of the utility model.
Claims (10)
- A kind of 1. structure composite type Beidou navigation antenna, it is characterised in that：Including aerial radiation main body, feed probes, coaxial feed Line and feeding network；The feeding network is located at the lower section of aerial radiation main body and connected by feed probes and aerial radiation main body Connect；The feed probes pass through aerial radiation main body；The coaxial feeder is connected with feeding network.
- A kind of 2. structure composite type Beidou navigation antenna according to claim 1, it is characterised in that：The aerial radiation master Paste with including the lower floor's FR4 metals set gradually from bottom to top by reflecting plate, air Stilt layer, upper strata FR4 dielectric-slabs and radiation for body Blade unit；The feeding network is by feed probes through lower floor's FR4 metals ground reflecting plate, air Stilt layer, upper strata FR4 media Plate is connected with radiation patch unit.
- A kind of 3. structure composite type Beidou navigation antenna according to claim 2, it is characterised in that：The radiation patch list Member includes Crossed Circle structural radiation paster and four F type structural radiation pasters；The radiation patch unit is etched in upper strata FR4 Jie Scutum upper surface.
- A kind of 4. structure composite type Beidou navigation antenna according to claim 3, it is characterised in that：The Crossed Circle structure Radiation patch includes annular paster nested inside and outside two, two rectangle feed coupling pieces, and two rectangle feed coupling pieces are located at Inside and outside two between nested annular paster, and it is connected with feed probes；It is nested in described two inside and outside nested annular pasters Four square grounded metal sheets are additionally provided with inside annular paster internally, grounded metal sheet passes through grounding probe and lower floor FR4 Metal reflecting plate connection.
- A kind of 5. structure composite type Beidou navigation antenna according to claim 4, it is characterised in that：It is described two interior outer The annular paster that inside is nested in the annular paster of set is the annular paster of bending.
- A kind of 6. structure composite type Beidou navigation antenna according to claim 5, it is characterised in that：The annular of the bending Paster is side's annular, and annular four side midpoints bend inwards.
- A kind of 7. structure composite type Beidou navigation antenna according to claim 3, it is characterised in that：The F types structure spoke The outside that paster is located at Crossed Circle structural radiation paster is penetrated, the F types structural radiation paster passes through feed probes and feeding network Connection, by grounding probe, reflecting plate is connected F type structural radiation pasters with lower floor FR4 metals at galianconism.
- A kind of 8. structure composite type Beidou navigation antenna according to claim 2, it is characterised in that：The air Stilt layer Can be by Filled Dielectrics.
- A kind of 9. structure composite type Beidou navigation antenna according to claim 3, it is characterised in that：The Crossed Circle structure Radiation patch uses two point feeding network, and four F type structural radiations paster uses four-point feed network.
- A kind of 10. structure composite type Beidou navigation antenna according to claim 9, it is characterised in that：The two point feed Network is connected with four-point feed network by coaxial feeder；The two point feeding network is using 90 ° of electric bridges of 3dB, T-shaped work(subnetting Network or Wilkinson feeding network；The four-point feed network uses tandem feeding network or three groups of Wilkinson feeding networks The network of composition or the four feedback networks built with 90 ° of electric bridges of 3dB.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902679.2U CN206976574U (en) | 2017-07-25 | 2017-07-25 | A kind of structure composite type Beidou navigation antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902679.2U CN206976574U (en) | 2017-07-25 | 2017-07-25 | A kind of structure composite type Beidou navigation antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425277A (en) * | 2017-07-25 | 2017-12-01 | 福建福大北斗通信科技有限公司 | Multi-frequency combination satellite navigation terminal antennae |
| CN111029758A (en) * | 2020-01-10 | 2020-04-17 | 国网思极神往位置服务（北京）有限公司 | Satellite navigation terminal antenna of BD B1 frequency band and working method thereof |
| CN118315815A (en) * | 2024-06-05 | 2024-07-09 | 华南理工大学 | Cross-frequency-band double-circular polarization fusion antenna based on F-P resonant cavity |
-
2017
- 2017-07-25 CN CN201720902679.2U patent/CN206976574U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425277A (en) * | 2017-07-25 | 2017-12-01 | 福建福大北斗通信科技有限公司 | Multi-frequency combination satellite navigation terminal antennae |
| CN107425277B (en) * | 2017-07-25 | 2023-06-02 | 福建福大北斗通信科技有限公司 | Multi-frequency combined satellite navigation terminal antenna |
| CN111029758A (en) * | 2020-01-10 | 2020-04-17 | 国网思极神往位置服务（北京）有限公司 | Satellite navigation terminal antenna of BD B1 frequency band and working method thereof |
| CN111029758B (en) * | 2020-01-10 | 2023-10-20 | 国网思极神往位置服务（北京）有限公司 | BD B1 frequency band satellite navigation terminal antenna and working method thereof |
| CN118315815A (en) * | 2024-06-05 | 2024-07-09 | 华南理工大学 | Cross-frequency-band double-circular polarization fusion antenna based on F-P resonant cavity |
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