CN202013951U - Multi-frequency range combined vehicle-mounted antenna - Google Patents
Multi-frequency range combined vehicle-mounted antenna Download PDFInfo
- Publication number
- CN202013951U CN202013951U CN2011200897930U CN201120089793U CN202013951U CN 202013951 U CN202013951 U CN 202013951U CN 2011200897930 U CN2011200897930 U CN 2011200897930U CN 201120089793 U CN201120089793 U CN 201120089793U CN 202013951 U CN202013951 U CN 202013951U
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- China
- Prior art keywords
- radiating doublet
- multiband
- car antenna
- gps module
- antenna
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present utility model relates to a multi-frequency range combined vehicle-mounted antenna which comprises a radiating body, a bottom plate, a protective cover, a radio frequency interface and a GPS module. The radiating body, the radio frequency interface and the GPS module are respectively arranged on the bottom plate, the protective cover is connected with the bottom plate to form an enclosed space, and the radiating body, the GPS module are respectively arranged inside the enclosed space. Compared with the prior art, the antenna has advantages of wide usage range, safety, reliability, wide frequency band, and high efficiency.
Description
Technical field
The utility model relates to a kind of car antenna, especially relates to a kind of multiband combination car antenna.
Background technology
Along with the continuous speed-raising of train, radio communication is had higher requirement.Radio communication be unable to do without antenna, and antenna is indispensable and irreplaceable visual plant as the throat of radio communication.Because the train top can provide the space that fixes up an aerial wire limited, for quantity and the volume that has reduced antenna effectively, avoided the interference each other of multiple antenna, require antenna must high integration, multiband to be to be applicable to various vehicle environments.
At present, many multiband aerials exist narrow bandwidth, profile is higher, efficient is low.Cause antenna to be not suitable for being installed on the object of running at high speed.A kind of method of existing multiband aerial is to adopt a plurality of oscillators compound, loads the lumped parameter coupling then, and this beamwidth of antenna is narrower, and efficient is low; Another kind method is to utilize the sleeve antenna principle to realize two-band.The profile of this antenna is higher.
Shortcomings such as relevant document also discloses multiple reactance loaded antenna, and it utilizes in a plurality of positions of radiating doublet and loads reactance realization multiband, and also there is the structure relative complex in this method, and frequency band is narrow.
The utility model content
The purpose of this utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of scope of application is wide, safe and reliable, bandwidth, multiband combination car antenna that efficient is high.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of multiband combination car antenna, it is characterized in that, comprise radiant body, base plate, protective cover, radio frequency interface, GPS module, described radiant body, radio frequency interface, GPS module are installed on the base plate respectively, described protective cover is connected with base plate, form enclosure space, described radiant body, GPS module are located in the enclosure space respectively.
Described radiant body comprises short line concentration, first radiating doublet, second radiating doublet, the 3rd radiating doublet, the 4th radiating doublet, and described short line concentration is connected with first radiating doublet, second radiating doublet, the 3rd radiating doublet, the 4th radiating doublet respectively.
Described short line concentration is provided with the corresponding power feed hole of radio frequency interface, screw is installed.
The vertical section semicircular in shape of described first radiating doublet.
The vertical section of described second radiating doublet is 7 shapes.
The vertical section of described the 3rd radiating doublet is Z-shaped.
The vertical section of described first radiating doublet is at right angles trapezoidal.
Compared with prior art, the utlity model has following advantage:
1, the scope of application is wide: the radiating doublet profile of this utility model is low, especially to run at high speed, wind resistance speed requires high special occasions particularly suitable.
2, safe and reliable: the short line concentration of this utility model can directly be installed on the base plate as installing rack, does not need to increase structural member, and is simple in structure, reliable.
3, bandwidth: because and connect the R-C series load that radiating doublet is equivalent to insert an equivalence, thereby the antenna working band is able to broadening.
4, efficient height: short line concentration of the present utility model can be used as the traveling-wave antenna of L, S-band, the efficient height.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of radiant body of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of multiband combination car antenna, it is characterized in that, comprise radiant body 1, base plate 2, protective cover 3, radio frequency interface 4, GPS module 5, described radiant body 1, radio frequency interface 4, GPS module 5 are installed in respectively on the base plate 2, described protective cover 3 is connected with base plate 2, forms enclosure space, and described radiant body 1, GPS module 5 are located in the enclosure space respectively.
As shown in Figure 2, described radiant body comprises short line concentration 121, first radiating doublet 122, second radiating doublet 123, the 3rd radiating doublet 124, the 4th radiating doublet 125, and described short line concentration 121 is connected with first radiating doublet 122, second radiating doublet 123, the 3rd radiating doublet 124, the 4th radiating doublet 125 respectively.Described short line concentration 121 is provided with the corresponding power feed hole 127 of radio frequency interface, screw 126 is installed.The 3rd radiating doublet 124 is realized the 600MHz frequency range; Second radiating doublet 123 is realized the 900MHz frequency range; The 4th radiating doublet 125 is realized the 2400MHz frequency range; The 4th radiating doublet 125 is realized the 1800MHz frequency range; First radiating doublet 122 is realized the 5800MHz frequency range, and short line concentration is the traveling-wave antenna of wave bands such as L, S.
The utility model utilizes the radiating doublet that loads different length in the appropriate location of the short line concentration of short circuit to realize multiband.After loading radiating doublet on the short line concentration, see that to short dot short line concentration is reactance from radiating doublet, and see round about and also be reactance that the input reactance of they and radiating doublet compensates mutually, has guaranteed each oscillator impedance matching.With regard to whole short-circuit line, at a certain distance and connect the R-C series load that a radiating doublet is equivalent to insert an equivalence, thereby all introduced certain " loss resistance " in these places, reduced the Q value, so obtain bigger improvement in the frequency characteristic of the input impedance of feed end.From the impedance angle, this structure makes the antenna working band be able to broadening.
Radiating doublet of the present utility model adopts the form of falling F, and the height that has reduced radiating doublet makes the antenna low profile.
Short line concentration of the present utility model is high efficiency traveling-wave antenna for wave bands such as L, S.
The utility model also can utilize the method that loads at radiating doublet to realize multiband.
The utility model adopts the method that loads the different length radiating doublet in the different position of short line concentration respectively, has realized the impedance bandwidth and the radiation characteristic of different frequency.
Claims (7)
1. a multiband makes up car antenna, it is characterized in that, comprise radiant body, base plate, protective cover, radio frequency interface, GPS module, described radiant body, radio frequency interface, GPS module are installed on the base plate respectively, described protective cover is connected with base plate, form enclosure space, described radiant body, GPS module are located in the enclosure space respectively.
2. a kind of multiband combination car antenna according to claim 1, it is characterized in that, described radiant body comprises short line concentration, first radiating doublet, second radiating doublet, the 3rd radiating doublet, the 4th radiating doublet, and described short line concentration is connected with first radiating doublet, second radiating doublet, the 3rd radiating doublet, the 4th radiating doublet respectively.
3. a kind of multiband combination car antenna according to claim 2 is characterized in that described short line concentration is provided with the corresponding power feed hole of radio frequency interface, screw is installed.
4. a kind of multiband combination car antenna according to claim 2 is characterized in that the vertical section semicircular in shape of described first radiating doublet.
5. a kind of multiband combination car antenna according to claim 2 is characterized in that the vertical section of described second radiating doublet is 7 shapes.
6. a kind of multiband combination car antenna according to claim 2 is characterized in that the vertical section of described the 3rd radiating doublet is Z-shaped.
7. a kind of multiband combination car antenna according to claim 2 is characterized in that the vertical section of described first radiating doublet is at right angles trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200897930U CN202013951U (en) | 2011-03-30 | 2011-03-30 | Multi-frequency range combined vehicle-mounted antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200897930U CN202013951U (en) | 2011-03-30 | 2011-03-30 | Multi-frequency range combined vehicle-mounted antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013951U true CN202013951U (en) | 2011-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200897930U Expired - Lifetime CN202013951U (en) | 2011-03-30 | 2011-03-30 | Multi-frequency range combined vehicle-mounted antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122755A (en) * | 2011-03-30 | 2011-07-13 | 上海通号轨道交通工程技术研究中心有限公司 | Multiband combined vehicle-mounted antenna |
| CN103236590A (en) * | 2013-04-07 | 2013-08-07 | 上海原田新汽车天线有限公司 | Antenna device |
-
2011
- 2011-03-30 CN CN2011200897930U patent/CN202013951U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122755A (en) * | 2011-03-30 | 2011-07-13 | 上海通号轨道交通工程技术研究中心有限公司 | Multiband combined vehicle-mounted antenna |
| CN103236590A (en) * | 2013-04-07 | 2013-08-07 | 上海原田新汽车天线有限公司 | Antenna device |
| CN103236590B (en) * | 2013-04-07 | 2015-12-23 | 上海原田新汽车天线有限公司 | Antenna assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170417 Address after: 200071 Shanghai Zhabei District Tibet North Road, building 10, floor 1-3, No. 489 Co-patentee after: Taixing Dongsheng Communications Equipment Co., Ltd. Patentee after: CRSC COMMUNICATION & INFORMATION GROUP SHANGHAI CO., LTD. Co-patentee after: Shanghai Railway Communication Co., Ltd. Address before: 200436 Shanghai, Zhabei District, West Road, room No. 508, room 179 Co-patentee before: Shanghai Xingantong Communication Equipment Co., Ltd. Patentee before: Shanghai Tonghao Rail Transport Engineering Technology Research Center Co.,Ltd. Co-patentee before: Taixing Dongsheng Communications Equipment Co., Ltd. Co-patentee before: Shanghai Railway Communication Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |