CN206650164U - A kind of single outlet two-band car antenna - Google Patents
A kind of single outlet two-band car antenna Download PDFInfo
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- CN206650164U CN206650164U CN201720338254.3U CN201720338254U CN206650164U CN 206650164 U CN206650164 U CN 206650164U CN 201720338254 U CN201720338254 U CN 201720338254U CN 206650164 U CN206650164 U CN 206650164U
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- radiant body
- antenna
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- frequency range
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Abstract
The utility model proposes a kind of single outlet two-band car antenna,For solving to disturb big technical problem between existing two-band car antenna very flexible and height frequency range radiant body,Including antenna body and antenna pedestal,Antenna pedestal includes connector,Elastomeric element,Base and ring flange,Antenna body includes high band radiant body and low-frequency range radiant body,High band radiant body includes the first radiant body and the second radiant body,For dipole antenna form,Low-frequency range radiant body includes the first radiant body,Second radiant body and the 3rd radiant body,For unipole antenna form,Connected between 3rd radiant body and connector for removably,The choke coil set between second radiant body and the 3rd radiant body can effectively reduce the coupling between height frequency range radiant body,Antenna is set to be exported by a prevention at radio-frequency port finally by combiner,The utility model has height frequency range radiant body isolation effect good,The advantages of single port exports,Available for vehicle radio station communication system.
Description
Technical field
The utility model belongs to antenna technical field, is related to a kind of car antenna, more particularly to a kind of single outlet two-band
Car antenna, available for vehicle radio station communication system.
Background technology
Because traditional frequency range (30Mhz-88MHz) car antenna can not meet communication requirement, more and more vehicle radio stations
Antenna develops to multiband, the car antenna of two-band (30Mhz-88MHz and 225Mhz-512MHz can be covered) work a kind of by
Gradually turn into study hotspot, and ultra wide band (30Mhz-512MHz) covers although antenna can cover two-band because it is continuous
The non-constant width of frequency band range, need to carry out wideband impedance match to it, and this will cause antenna in 30Mhz-88MHz frequency ranges and
225Mhz-512MHz frequency range internal antennas antenna pattern distorts and the reduction of antenna efficiency, thus is necessary for this special
Demand develops a kind of two-band car antenna.
Such as application publication number CN105552559A, entitled " a kind of double outlet car antennas ", disclose a kind of double frequency
Section car antenna, including antenna pedestal and the antenna body that is connected with antenna pedestal, antenna body include superposed upper section mast
With the lower section mast positioned at bottom, upper section mast is connected with lower section mast by screw thread, and the invention can be used for simultaneously
Communicate in 30MHz-88MHz and 225MHz-512MHz frequency ranges, although it has dual band operation characteristic, can substantially meet
The requirement of two-band car antenna, but be isolation to height frequency range radiant body the shortcomings that the invention using coaxial cable
Upper additional absorbing material, although the simple effect of this method is limited, while the invention has two output ports, causes flexibility
Difference.
Utility model content
The purpose of this utility model is to overcome the shortcomings of the prior art, it is proposed that a kind of single outlet two-band is vehicle-mounted
Antenna, for solving to disturb big technology between very flexible and height frequency range radiant body existing for existing two-band car antenna
Problem.
To achieve the above object, the technical scheme that the utility model is taken is：
A kind of single outlet two-band car antenna, including antenna body and antenna pedestal, the antenna pedestal include connector 9, bullet
Property part 11, base 12 and ring flange 15, the base 12 is using the mesa-shaped structure with upper and lower opening cavity, the ring flange
15 are fixed on the bottom surface of base 12, and one end of the elastomeric element 11 is fixed on the upper bottom surface of base 12, and the other end is with being connected
Device 9 is fixed；The antenna body includes high band radiant body and low-frequency range radiant body, and two radiant bodies are enclosed in antenna house 1,
The high band radiant body includes the first radiant body 2 and the second radiant body 5 of same size, is set between two radiant bodies 2,5
It is equipped with the first matching network 3；The low-frequency range radiant body includes the first radiant body 2, the second radiant body 5 and the 3rd radiant body 8, should
Three radiant bodies 2,5,8 use tubular metal material, and co-axial alignment；Between the radiant body 8 of second radiant body 5 and the 3rd
Choke coil 6 is provided with, the upper end of the choke coil 6 is connected by the first coaxial line 4 with the first matching network 3, and its lower end passes through
Two coaxial lines 7 are connected with connector 9, and the connector 9 is connected with triax 10, and the triax 10 is with being arranged on method
One input port of the combiner 17 on blue disk 15 is connected, and its outer conductor is connected by wire 13 with the second matching network 14,
Another input port of the combiner 17 is connected with the second matching network 14, the output port of the combiner 17 and installed in method
Joint 16 on blue disk 15 is connected；Connected between 3rd radiant body 8 and connector 9 using removably.
A kind of above-mentioned single outlet two-band car antenna, first radiant body 2, the second radiant body 5 and the 3rd radiation
Body 8, using lightweight metal material, and outer surface copper facing.
A kind of above-mentioned single outlet two-band car antenna, the antenna house 1, using insulating materials.
A kind of above-mentioned single outlet two-band car antenna, the elastomeric element 11, using military bulging spring.
A kind of above-mentioned single outlet two-band car antenna, the connector 9, using cable connector.
The utility model compared with prior art, has the following advantages that：
1. the utility model adds low-and high-frequency due to being provided with choke coil between the second radiant body and the 3rd radiant body
Isolation between section radiant body, compared with prior art, efficiently reduces the interference between height frequency range radiant body.
2. the utility model is reduced due to being provided with combiner in the output end of high band radiant body and low-frequency range radiant body
Output port quantity, it is poor using antenna flexibility caused by dual-port output in the prior art so as to avoid, it is unhandy
Problem.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is standing-wave ratio measured drawing of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Reference picture 1, a kind of single outlet two-band car antenna, including antenna body and antenna pedestal, antenna pedestal include connector
9th, elastomeric element 11, base 12 and ring flange 15, connector 9 use cable connector, are divided into female and male, elastomeric element 11
Using military bulging spring, base 12 is glass-reinforced plastic material, is highly 85mm, using the mesa-shaped structure with upper and lower opening cavity, method
Blue 15 a diameter of 140mm of disk, the bottom surface of base 12 is fixed on using nut, and elastomeric element 11 is high using military anticollision drum spring
130mm is spent, its one end is fixed on the upper bottom surface of base 12 with nut, and the other end is provided with the male of cable connector 9；Antenna body
Including high band radiant body and low-frequency range radiant body, two radiant bodies are enclosed in antenna house 1, and antenna house 1 uses dead ring
Oxygen glass reinforced plastic pipe, high band radiant body include the first radiant body 2 and the second radiant body 5 of same size, its height 230mm, directly
Footpath 30mm, the first matching network 3 is welded between two radiant bodies, first matching network 3 is realized using LC series-parallel circuits,
For carrying out impedance matching to high band radiant body；Low-frequency range radiant body includes the first radiant body 2, the second radiant body 5 and the 3rd
Radiant body 8, three radiant bodies use lightweight copper pipe, and co-axial alignment, wherein the height of the 3rd radiant body 8 is 1000mm, directly
Footpath is 30mm；Choke coil 6 is provided between second radiant body 5 and the 3rd radiant body 8, the choke coil 6 is using the half of a diameter of 3mm
Steel coaxial line coiling forms, and the number of turns is four circles, and upper end is connected with the first coaxial line 4, and lower end is connected with the second coaxial line 7, is used for
Reduce the coupling between high band radiant body and low-frequency range radiant body, second coaxial line 7 and on the 3rd radiant body 8
The female of cable connector 9 is connected, the first coaxial line 4, using a diameter of 3mm half steel coaxial line, its inner wire and first
Distribution network 3 is connected, and outer conductor and the second radiant body 5 connect；The male of cable connector 9 is connected with triax 10, and this
Triax 10 uses a diameter of 3mm half steel coaxial line, and one with the combiner 17 by nut on ring flange 15
Individual input port is connected, and wherein combiner includes 30Mhz-88Mhz bandpass filters and 225Mhz-512Mhz bandpass filters,
Plain conductor 13, which connects the outer conductor of triax 10 and the second matching network 14, second matching network 14, includes LC connection in series-parallel
Circuit and matching electric bridge, for carrying out impedance matching, another input port of combiner 17 and second to low-frequency range radiant body
Distribution network 14 is connected, and output port is connected with the joint 16 on ring flange 15, and joint 16 uses N-type the moon head, so as to real
The single port output of existing antenna, adds the flexibility of antenna.
Reference picture 2, Fig. 2 (a) and Fig. 2 (b) be the utility model embodiment respectively in 30Mhz-88Mhz frequency ranges and
Each frequency standing-wave ratio experimental result picture of 225Mhz-512Mhz frequency ranges, abscissa are frequency, and ordinate is standing-wave ratio, from Fig. 2 (a)
It can be seen that the utility model embodiment in each frequency standing-wave ratio of 30Mhz-88Mhz frequency ranges below 3, can from Fig. 2 (b)
To the utility model embodiment in each frequency standing-wave ratio of 225Mhz-512Mhz frequency ranges below 3, meet two-band car antenna
3 requirement is respectively less than to standing-wave ratio.
Above description is only instantiation of the present utility model, it is clear that for those skilled in the art, is being understood
After content and principle of the present utility model, all form may be carried out in the case of without departing substantially from the utility model principle, structure
With the various modifications and variations in details, but these based on this modifications and variations still in the utility model claims scope
Within.
Claims (5)
1. a kind of single outlet two-band car antenna, including antenna body and antenna pedestal, it is characterised in that the antenna pedestal includes connecting
Device (9), elastomeric element (11), base (12) and ring flange (15) are connect, the base (12) is used with upper and lower opening cavity
Mesa-shaped structure, the ring flange (15) are fixed on the bottom surface of base (12), and one end of the elastomeric element (11) is fixed on bottom
The upper bottom surface of seat (12), the other end are fixed with connector (9)；The antenna body includes high band radiant body and low-frequency range radiates
Body, two radiant bodies are enclosed in antenna house (1), and the high band radiant body includes the first radiant body (2) of same size
With the second radiant body (5), the first matching network (3) is provided between two radiant bodies (2,5)；The low-frequency range radiant body bag
The first radiant body (2), the second radiant body (5) and the 3rd radiant body (8) are included, three radiant bodies (2,5,8) are using tubulose gold
Belong to material, and co-axial alignment；Choke coil (6) is provided between second radiant body (5) and the 3rd radiant body (8), the chokes
The upper end of circle (6) is connected by the first coaxial line (4) with the first matching network (3), and its lower end is by the second coaxial line (7) with connecting
Connect device (9) to be connected, the connector (9) is connected with triax (10), and the triax (10) is with being arranged on ring flange
(15) input port of the combiner (17) on is connected, and its outer conductor passes through wire (13) and the second matching network (14) phase
Even, another input port of the combiner (17) is connected with the second matching network (14), the output port of the combiner (17)
It is connected with the joint (16) on ring flange (15)；Using detachable between 3rd radiant body (8) and connector (9)
Mode connects.
A kind of 2. single outlet two-band car antenna according to claim 1, it is characterised in that first radiant body
(2), the second radiant body (5) and the 3rd radiant body (8), using lightweight metal material, and outer surface copper facing.
3. a kind of single outlet two-band car antenna according to claim 1, it is characterised in that the antenna house (1), adopt
Use insulating materials.
A kind of 4. single outlet two-band car antenna according to claim 1, it is characterised in that the elastomeric element
(11), using military bulging spring.
5. a kind of single outlet two-band car antenna according to claim 1, it is characterised in that the connector (9), adopt
Use cable connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338254.3U CN206650164U (en) | 2017-04-01 | 2017-04-01 | A kind of single outlet two-band car antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338254.3U CN206650164U (en) | 2017-04-01 | 2017-04-01 | A kind of single outlet two-band car antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206650164U true CN206650164U (en) | 2017-11-17 |
Family
ID=60275664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720338254.3U Active CN206650164U (en) | 2017-04-01 | 2017-04-01 | A kind of single outlet two-band car antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206650164U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462741A (en) * | 2018-12-12 | 2019-03-12 | 航天恒星空间技术应用有限公司 | A kind of multi-frequency-band digital image transmission terminal |
| CN110994159A (en) * | 2019-12-27 | 2020-04-10 | 耀登电通科技（昆山）有限公司 | WLAN glass fiber reinforced plastic antenna |
-
2017
- 2017-04-01 CN CN201720338254.3U patent/CN206650164U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462741A (en) * | 2018-12-12 | 2019-03-12 | 航天恒星空间技术应用有限公司 | A kind of multi-frequency-band digital image transmission terminal |
| CN110994159A (en) * | 2019-12-27 | 2020-04-10 | 耀登电通科技（昆山）有限公司 | WLAN glass fiber reinforced plastic antenna |
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