CN207677056U - A kind of directional aerial - Google Patents
A kind of directional aerial Download PDFInfo
- Publication number
- CN207677056U CN207677056U CN201721581551.7U CN201721581551U CN207677056U CN 207677056 U CN207677056 U CN 207677056U CN 201721581551 U CN201721581551 U CN 201721581551U CN 207677056 U CN207677056 U CN 207677056U
- Authority
- CN
- China
- Prior art keywords
- radiator
- directional aerial
- reflecting plate
- shell
- circuit body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to a kind of directional aerials, including radiator, support column, reflecting plate, feed Balun, short-circuit body, shell, feeder cable component and magnet, the radiator, support column, feed Balun, short-circuit body are set in the shell, the reflecting plate and magnet are set to the bottom of the shell, and the radiator, reflecting plate and short-circuit body are frequency PCB plate.The directional aerial solves the wireless sensing inside metal chassis and designs, and volume is small, has larger radiation angle, direct magnet is fixed, and is mounted directly without carrying out any change to metal chassis, and solve the problems, such as antenna match, there is one section of feed Balun, can effectively promote antenna performance.
Description
Technical field
The utility model is related to a kind of directional aerials.
Background technology
Currently, the application of intelligent radio is more and more universal, the wherein application of wireless sensing is even more recently and advances by leaps and bounds.To people
Member, the intelligent recognition of product or physical parameter or information sensing application are even more very extensive.
Or traditional directional aerial volume is big, can not be installed in specific region；Small volume, but be typically all
Omnidirectional, in metal chassis can not anti-metal interference, it is difficult to realize the wireless sensing of technology casing internal.
Utility model content
The purpose of this utility model is to be directed to above-mentioned present situation, provides a kind of small and can be fixed in metal chassis, simultaneously
It is capable of the directional aerial of anti-metal interference.
The technical solution adopted in the utility model：A kind of directional aerial is directly anchored in external metal chassis, including
Radiator, support column, reflecting plate, feed Balun, short-circuit body, shell, feeder cable component and magnet, the radiator, support
Column, feed Balun, short-circuit body are set in the shell, and the feeder cable component extends from the side of the shell, institute
It states reflecting plate and magnet is set to the bottom of the shell, the radiator, reflecting plate and short-circuit body are frequency PCB plate, described
Support column is set between the radiator and reflecting plate, is used to support the radiator and reflecting plate, the feed Balun is set to
Between the radiator and reflecting plate, and set on the opposite other end of the radiator and reflecting plate, the feed Balun is to adjust
The circle stripping feed port of whole dielectric length and shielded layer length, can make the directional aerial more by the feed Balun
Good realization impedance matching, the short circuit body is set between the radiator and reflecting plate, and is connect with the feed Balun, institute
It states shell and is provide with the radiator, support column, feed Balun and short-circuit body, and the shell is made of insulation high-temperature-resistant material,
The quadrangle of the shell extends outwardly four lugs respectively, and a through-hole, the feeder cable are respectively equipped on each lug
Component is for realizing the signal connection between the directional aerial and main radio-frequency module, and the magnet is for realizing the directional aerial and outside
It is fixed between portion's metal chassis.
The effect of the utility model is：The directional aerial solves the wireless sensing inside metal chassis and designs, volume
There is ultra micro larger radiation angle, direct magnet to fix, and is mounted directly without carrying out any change to metal chassis, and solve
Antenna match problem, has one section of feed Balun, can effectively promote antenna performance.
Description of the drawings
Fig. 1 is a kind of vertical view of directional aerial provided by the utility model；
Fig. 2 is the sectional view of Fig. 1；
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
Referring to Fig. 1, being a kind of directional aerial provided by the utility model, external metal chassis can be directly anchored to
On.The directional aerial can effective anti-back metal interference, so that signal is effectively radiated on the induction antenna of sensor.
The directional aerial includes radiator 1, support column 2, reflecting plate 3, feed Balun 4, short-circuit body 5, shell 6, feed line
Cable assembly 7 and magnet 8.Radiator 1, support column 2, feed Balun 4, short-circuit body 5 are set in shell 6, and feeder cable component 7 is outside
The side of shell 6 is extended, and reflecting plate 3 and magnet 8 are set on the bottom of shell 6.
Radiator 1 be frequency PCB plate, with higher dielectric constant, effectively shorten radiation body length and with
Thickness between reflecting plate 3.
Reflecting plate 3 is frequency PCB plate, and and interval parallel with radiator 1 is arranged.
Support column 2 includes the dielectric wrapped up outside intermediate welding metal column and metal column.Support column 2 is set to spoke
Between beam 1 and reflecting plate 3, it is used to support radiator 1 and reflecting plate 3.In this present embodiment, support column 2 is set to 1 He of radiator
One end of reflecting plate 3, and it is vertical with radiator 1 and reflecting plate 3.
Feed Balun 4 is to adjust the circle stripping feed port of dielectric length and shielded layer length, passes through feed Balun 4
The directional aerial can be made preferably to realize 50 Europe impedance matchings.Feed Balun 4 is set between radiator 1 and reflecting plate 3, and is set
In the opposite other end of radiator 1 and reflecting plate 3.In this present embodiment, feed Balun 4 is L-shaped.Feed Balun 4 can be effective
Antenna performance is promoted, port is made to realize the characteristic impedance in 50 Europe.
Short-circuit body 5 is frequency PCB plate.Short-circuit body 5 is set between radiator 1 and reflecting plate 3, and is connected in feed Balun 4.
In this present embodiment, short-circuit body 5 is set to the opposite other end edge of radiator 1 and reflecting plate 3.
Shell 6 is provide with radiator 1, support column 2, feed Balun 4 and short-circuit body 5, plays protection radiator 1, support column 2, feedback
The effect of electric balun 4 and short-circuit body 5.Shell 6 is made of insulation high-temperature-resistant material.The quadrangle of shell 6 extends outwardly four respectively
Lug 61 is respectively equipped with a through-hole on each lug 61.According to customer demand, when client feels magnet 8 and external metallization casing
Between fix insecure, then fixed using the through-hole cooperation on connector and lug 61.It is to be appreciated that the through-hole on lug 61
It is interior to be fixed with bolt, it is also possible to which that magnetic element absorption is fixed, and also can both be fixed with bolt or be adsorbed fixation with magnetic element.From
And it can be according to the demand Mutiple Choice of client.
Feeder cable component 7 connects for realizing the signal between the directional aerial and main radio-frequency module.Feeder cable component 7
It connect with short-circuit body 5, extends from shell 6.
Magnet 8 is for realizing fixed between the directional aerial and external metallization casing.In this present embodiment, magnet 8 is direct
It is fixed on reflecting plate 3, so that the directional aerial is directly inhaled in metal chassis inner wall, install convenient is simultaneously without destroying or changing
Metal chassis.
Shell 6 and reflecting plate 3 form the entirety being closed.
The directional aerial is the small directional aerials of ultramicroscopic 433MHZ, and volume is less than 160*70*30 millimeters.The orientation day
Line can directly be inhaled in metal chassis inner wall, and radiator launches radiofrequency signal, and receives the induction antenna for being tested sensor
The signal of return.The directional aerial has larger deflection (100 ° of deflections), in metal chassis internal non-radiative blind area.
In this way, the directional aerial solves the wireless sensing inside metal chassis and designs, volume ultra micro, have larger
Radiation angle, direct magnet are fixed, and are mounted directly without carrying out any change to metal chassis, and solve the problems, such as antenna match,
There is one section of feed Balun, can effectively promote antenna performance.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of directional aerial, it is directly anchored in external metal chassis, which is characterized in that including radiator, support column, anti-
Penetrate plate, feed Balun, short-circuit body, shell, feeder cable component and magnet, the radiator, support column, feed Balun, short circuit
Body is set in the shell, and the feeder cable component extends from the side of the shell, and the reflecting plate and magnet are set
In the bottom of the shell, the radiator, reflecting plate and short-circuit body are frequency PCB plate, and the support column is set to the spoke
Between beam and reflecting plate, it is used to support the radiator and reflecting plate, the feed Balun is set to the radiator and reflection
Between plate, and set on the radiator and reflecting plate opposite other end, the feed Balun be adjustment dielectric length with
And the circle stripping feed port of shielded layer length, the directional aerial can be made preferably to realize impedance by the feed Balun
Match, the short circuit body is set between the radiator and reflecting plate, and is connect with the feed Balun, and the shell is provide with described
Radiator, support column, feed Balun and short-circuit body, and the shell is made of insulation high-temperature-resistant material, the quadrangle of the shell
Extend outwardly four lugs respectively, a through-hole is respectively equipped on each lug, the feeder cable component is for realizing this
Signal connection between directional aerial and main radio-frequency module, the magnet is for realizing between the directional aerial and external metallization casing
It is fixed.
2. directional aerial as described in claim 1, it is characterised in that：The reflecting plate is parallel with radiator and interval is arranged.
3. directional aerial as described in claim 1, it is characterised in that：The support column include intermediate welding metal column and
The dielectric wrapped up outside metal column.
4. directional aerial as described in claim 1, it is characterised in that：The support column is set to the radiator and reflecting plate
One end, and it is vertical with the radiator and reflecting plate.
5. directional aerial as described in claim 1, it is characterised in that：The feed Balun is L-shaped.
6. directional aerial as described in claim 1, it is characterised in that：The feed Balun can effectively promote antenna performance,
Port is set to realize the characteristic impedance in 50 Europe.
7. directional aerial as described in claim 1, it is characterised in that：The short circuit body is set to the radiator and reflecting plate
Opposite other end edge.
8. directional aerial as described in claim 1, it is characterised in that：The feeder cable component is connect with the short-circuit body,
Extend from the shell.
9. directional aerial as described in claim 1, it is characterised in that：The magnet is directly anchored on the reflecting plate, is made
The directional aerial can directly be inhaled in the metal chassis inner wall.
10. directional aerial as described in claim 1, it is characterised in that：The directional aerial is the small directional aerials of 433MHZ,
Volume is less than 160*70*30 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721581551.7U CN207677056U (en) | 2017-11-23 | 2017-11-23 | A kind of directional aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721581551.7U CN207677056U (en) | 2017-11-23 | 2017-11-23 | A kind of directional aerial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677056U true CN207677056U (en) | 2018-07-31 |
Family
ID=62966282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721581551.7U Active CN207677056U (en) | 2017-11-23 | 2017-11-23 | A kind of directional aerial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207677056U (en) |
-
2017
- 2017-11-23 CN CN201721581551.7U patent/CN207677056U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |