CN209104360U - A kind of assembly type antenna equipment - Google Patents
A kind of assembly type antenna equipment Download PDFInfo
- Publication number
- CN209104360U CN209104360U CN201822185779.5U CN201822185779U CN209104360U CN 209104360 U CN209104360 U CN 209104360U CN 201822185779 U CN201822185779 U CN 201822185779U CN 209104360 U CN209104360 U CN 209104360U
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- connecting pin
- antenna
- balun
- sleeve
- mounting plate
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Abstract
The utility model discloses a kind of assembly type antenna equipments, including antenna element, connector, balun and coaxial feeder；The antenna element includes sleeve, spring antenna and top cover, and spring antenna is arranged in sleeve, the fixed top cover in sleeve one end；Connector includes attachment base and connecting pin, and external screw thread is arranged on connecting pin, and screw thread is arranged in balun inner wall, and balun is threadedly coupled with connecting pin；Coaxial feeder passes through balun, connector and spring antenna and connects；The length of coaxial cable is at least 1/2 wavelength.The effect of the utility model is: the change of balun described in the utility model antenna when reliably preventing connection communication equipment is provided for antenna environment causes resonance point to be shaken.Coaxial feed line length described in the utility model is a part that 1/2 wavelength is antenna equipment, while increasing the ground of antenna, and the change of environment causes resonance point to be shaken with preventing antenna when connection communication equipment.
Description
Technical field
The utility model belongs to antenna technical field, is related to a kind of VHF antenna more particularly to a kind of assembling based on VHF
Formula antenna equipment.
Background technique
Antenna is the component for being used to emit or receive electromagnetic wave in wireless device, and basic function is will to be sent by transmitter
The high-frequency current energy conversion come is radio wave and is transmitted to space, in the radio wave energy that space is then transmitted in receiving end
It is converted into the high-frequency current energy transmitted to receiver, to realize the transmitting of electromagnetic signal in any two points.
Antenna leads to the offset of antenna resonance point due to the variation on ground in the different communication system of access, will lead to communication
Efficiency decline.
Utility model content
It is to be solved in the utility model that be antenna lead to antenna due to the variation on ground accessing different communication systems
The offset of resonance point, will lead to communication efficiency decline, and a kind of fibre-glass epoxy antenna based on VHF copes with different ground loops
Border.
The purpose of this utility model is achieved through the following technical solutions:
A kind of assembly type antenna equipment, including antenna element, connector, balun and coaxial feeder；
The antenna element includes sleeve, spring antenna and top cover, and spring antenna is arranged in sleeve, and sleeve one end is fixed
Top cover；
Connector includes attachment base and connecting pin, and external screw thread is arranged on connecting pin, and screw thread, balun and company is arranged in balun inner wall
End is connect to be threadedly coupled；
Coaxial feeder passes through balun, connector and spring antenna and connects；The length of coaxial cable is at least 1/2 wavelength.
It is preferred that it further includes bracket, bracket is for installing antenna assembly.
It is preferred that it further includes locking nut；Bracket includes the first mounting plate, the second mounting plate and stiffening plate；
First mounting plate is connect with the second mounting plate；The side fixed triangle shape of first mounting plate and the second mounting plate is reinforced
Plate；
Through-hole is set on the first mounting plate, and the connecting pin of connector is fixed after passing through the first mounting plate by locking nut.
It is preferred that the connecting pin of connector includes the first connecting pin and second connection end；
External screw thread is respectively provided in first connecting pin and second connection end；First connecting pin passes through second connection end, and first connects
It connects end and second connection end is fixed with attachment base；
Balun is threadedly coupled with second connection end；The end of coaxial feeder be provided with mounting head (such as mother RF turn RG6 English system
Internal screw thread adapter, frequently as cable television adapter), mounting head is threadedly coupled with the first connecting pin.
It is preferred that top cover is connect with bush whorl.
It is preferred that smearing sealant in the junction of top cover and sleeve after top cover and sleeve connection, sealing is formed
Layer.It avoids water from entering in sleeve, there is waterproof effect.
It is preferred that sleeve is made of fiberglass reinforced plastics (i.e. glass reinforced plastic).
It is preferred that balun is the copper pipe or aluminum pipe of length 120mm (balun length is generally 1/4 wavelength).
The beneficial effects of the utility model are:
Balun described in the utility model provides reliably for antenna, antenna ground environment when preventing connection communication equipment
Change causes resonance point to be shaken.
Coaxial feed line length described in the utility model is a part that 1/2 wavelength is antenna equipment, while increasing day
The ground of line, the change of environment causes resonance point to be shaken with preventing antenna when connection communication equipment.
Detailed description of the invention
Fig. 1 is the fractionation structural representation of the utility model；
Fig. 2 is one of the overall structure diagram of the utility model；
Fig. 3 is the two of the overall structure diagram of the utility model；
Fig. 4 is the utility model embodiment connection schematic diagram；
Fig. 5 is the structural schematic diagram of the utility model antenna element and connector；
Fig. 6 is the return loss and standing-wave ratio figure of the utility model；
Fig. 7 is the utility model in 169MHz frequency point actual measurement directional diagram；
In figure, 1- top cover, 2- sleeve, 3- connector, the first connecting pin 3.1-, 3.2- second connection end, 3.3- attachment base,
4- bracket, 5- locking nut, 6- balun, 7- coaxial feeder.
Specific embodiment
The technical solution of the utility model, but the protection scope of the utility model are described in further detail with reference to the accompanying drawing
It is not limited to as described below.
As Figure 1-Figure 5, a kind of assembly type antenna equipment, including antenna element, connector 3, balun 6 and coaxial feeder
7；
The antenna element includes sleeve 2, spring antenna and top cover 1, and spring antenna is arranged in sleeve 2,2 one end of sleeve
Fixed top cover 1；
Connector 3 includes attachment base 3.3 and connecting pin, and external screw thread is arranged on connecting pin, and screw thread is arranged in 6 inner wall of balun, bar
Human relations 6 are threadedly coupled with connecting pin；
Coaxial feeder 7 passes through balun 6, connector 3 is connect with spring antenna；The length of coaxial cable is at least 1/2 wavelength.
Preferably, the size of each part is as shown in Figure 2.
In a preferred embodiment, it further includes bracket 4, and bracket 4 is for installing antenna assembly.
In a preferred embodiment, it further includes locking nut 5；Bracket 4 include the first mounting plate, the second mounting plate and
Stiffening plate；
First mounting plate is connect with the second mounting plate, and the first mounting plate is vertical with the second mounting plate；First mounting plate and
The side fixed triangle shape stiffening plate of two mounting plates；First mounting plate, the second mounting plate and stiffening plate are integrally formed；
Through-hole is set on the first mounting plate, and the connecting pin of connector 3 is consolidated after passing through the first mounting plate by locking nut 5
It is fixed.It is provided with mounting hole on second mounting plate, the quantity of mounting hole preferably four.
In a preferred embodiment, the connecting pin of connector 3 includes the first connecting pin 3.1 and second connection end 3.2；
External screw thread is respectively provided in first connecting pin 3.1 and second connection end 3.2；The diameter of first connecting pin 3.1 is less than
Two connecting pins 3.2, the first connecting pin 3.1 pass through second connection end 3.2, and the first connecting pin 3.1 and second connection end 3.2 are and even
Joint chair 3.3 is fixed；
Balun 6 is threadedly coupled with second connection end 3.2；The end of coaxial feeder 7 be provided with mounting head (such as mother RF turn
RG6 English system internal screw thread adapter, frequently as cable television adapter), mounting head is threadedly coupled with the first connecting pin 3.1.
In a preferred embodiment, top cover 1 is threadedly coupled with sleeve 2.
In a preferred embodiment, it smears and seals in the junction of top cover 1 and sleeve 2 after top cover 1 is connect with sleeve 2
Glue forms sealant.It avoids water from entering in sleeve 2, there is waterproof effect.
In a preferred embodiment, sleeve 2 is made of fiberglass reinforced plastics (i.e. glass reinforced plastic).
In a preferred embodiment, (6 length of balun is generally 1/4 to the copper pipe or aluminum pipe that balun 6 is length 120mm
Wavelength).In use, it is located at coaxial feeder 7 under bracket 4 (metallic support 4, such as steel or retort stand 4) (such as
Shown in Fig. 4).Preferably, 7 coiling of coaxial feeder is 2 circles, and the diameter of a circle that coiling is formed is 7cm-12cm.It is given in Fig. 4
The connection type of one preferred embodiment, coaxial feeder 7cable under balun, coiled wire-wound coil diameter 90mm, coaxial feeder
7 connect with System cable, and System cable (system cable) is connected to RF module (radio-frequency module).Entire antenna
Device is connected to Concentrator hub.
It is the utility model 169MHz antenna return loss and standing-wave ratio experimental result picture referring to Fig. 6, Fig. 6 top half is
Return loss plot, abscissa are frequency, and ordinate is return loss, its return loss < -10dB meets as can be seen from Figure 6
Requirement of the mobile communication to antenna；The lower half portion Fig. 6 be antenna standing wave ratio figure, abscissa be frequency, ordinate standing-wave ratio, from
Fig. 6 can be seen that the requirement that its standing-wave ratio < 1.5 meets mobile communication to antenna.
It is the face H and the E surface radiation directional diagram that the utility model 169MHz is actual measurement, as can be seen from Figure 7 this reality referring to Fig. 7
There is good omnidirectional radiation characteristic in 169MHz with novel, requirement of the mobile communication to radiation pattern can be met.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, and should refer to
Out, any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should all include
It is within the protection scope of the utility model.
Claims (7)
1. a kind of assembly type antenna equipment, it is characterised in that: including antenna element, connector, balun and coaxial feeder；
The antenna element includes sleeve, spring antenna and top cover, and spring antenna is arranged in sleeve, the fixed top in sleeve one end
Lid；
Connector includes attachment base and connecting pin, and external screw thread is arranged on connecting pin, and screw thread, balun and connecting pin is arranged in balun inner wall
It is threadedly coupled；
Coaxial feeder passes through balun, connector and spring antenna and connects；The length of coaxial cable is at least 1/2 wavelength.
2. a kind of assembly type antenna equipment according to claim 1, it is characterised in that: it further includes bracket.
3. a kind of assembly type antenna equipment according to claim 2, it is characterised in that: it further includes locking nut；Bracket
Including the first mounting plate, the second mounting plate and stiffening plate；
First mounting plate is connect with the second mounting plate；The side fixed triangle shape stiffening plate of first mounting plate and the second mounting plate；
Through-hole is set on the first mounting plate, and the connecting pin of connector is fixed after passing through the first mounting plate by locking nut.
4. a kind of assembly type antenna equipment according to claim 3, it is characterised in that: the connecting pin of connector includes first
Connecting pin and second connection end；
External screw thread is respectively provided in first connecting pin and second connection end；First connecting pin passes through second connection end, the first connecting pin
It is fixed with attachment base with second connection end；
Balun is threadedly coupled with second connection end；The end of coaxial feeder is provided with mounting head, mounting head and the first connecting pin spiral shell
Line connection.
5. a kind of assembly type antenna equipment described in one of -4 according to claim 1, it is characterised in that: top cover and bush whorl connect
It connects.
6. a kind of assembly type antenna equipment according to claim 5, it is characterised in that: in top cover after top cover and sleeve connection
Sealant is smeared with the junction of sleeve, forms sealant.
7. a kind of assembly type antenna equipment according to claim 1 or 6, it is characterised in that: sleeve is increased using glass fibre
Strong plastics are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185779.5U CN209104360U (en) | 2018-12-20 | 2018-12-20 | A kind of assembly type antenna equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185779.5U CN209104360U (en) | 2018-12-20 | 2018-12-20 | A kind of assembly type antenna equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209104360U true CN209104360U (en) | 2019-07-12 |
Family
ID=67163207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822185779.5U Active CN209104360U (en) | 2018-12-20 | 2018-12-20 | A kind of assembly type antenna equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209104360U (en) |
-
2018
- 2018-12-20 CN CN201822185779.5U patent/CN209104360U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 611731 No. 99, Tianquan Road, high tech Zone, Chengdu, Sichuan Patentee after: Chengdu Great Wall Development Technology Co.,Ltd. Address before: 611731 no.1218, Hezuo Road, high tech Zone (West District), Chengdu, Sichuan Province Patentee before: CHENGDU GREAT WALL DEVELOPMENT TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |