CN106252843A - A kind of VHF car antenna - Google Patents
A kind of VHF car antenna Download PDFInfo
- Publication number
- CN106252843A CN106252843A CN201610860896.XA CN201610860896A CN106252843A CN 106252843 A CN106252843 A CN 106252843A CN 201610860896 A CN201610860896 A CN 201610860896A CN 106252843 A CN106252843 A CN 106252843A
- Authority
- CN
- China
- Prior art keywords
- antenna
- coaxial connector
- circuit
- magnet ring
- vhf
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Abstract
The open a kind of VHF car antenna of the present invention, it includes that antenna body, coaxial connector, antenna impedance adjust circuit, high-frequency signal suppressor and fixed part.Antenna body by the main resonance antenna being printed on a circuit board and the primary radiation oscillator, frequency modulation radiating doublet and the auxiliary resonance that is welded on frequency modulation radiating doublet that are sequentially connected with form；Coaxial connector includes that a core and is located at the screen layer outside core, welds screen layer and main resonance antenna；Antenna impedance adjusts circuit and is printed on circuit board, and one end of antenna impedance adjustment circuit is welded with core, and antenna impedance adjusts the circuit other end and is connected with primary radiation oscillator；High-frequency signal suppressor is fixed at coaxial connector surface；Fixed component is located at the back side of antenna body.The VHF car antenna size of the application is less, be easily installed, and can adapt to multiple environment, will not affect the using effect of antenna because of the difference using environment.
Description
Technical field
The invention belongs to car antenna field, more specifically, be a kind of VHF wave band car antenna.
Background technology
Growing along with wireless technology, Radio Transmission Technology application is increasingly accepted by all trades and professions, and it is installed
The characteristics such as conveniently, motility is strong, cost performance is high make the monitoring system of more conglomerate use wireless transmission method.
Antenna is a kind of changer, and it, the guided wave of transmission above-the-line promotion, is transformed at unbounded medium (the freest
Space) the middle electromagnetic wave propagated, or carry out contrary conversion.Antenna is for launching or receiving electromagnetism in radio
The parts of ripple.The engineering systems such as radio communication, broadcast, TV, radar, navigation, electronic countermeasure, remote sensing, radio astronomy, every
Use electromagnetic waves to transmission information, depend on antenna and be operated.In today, the transmission of wireless signal also becomes us
The indispensable part of reception information of life.
Car antenna is as the instrument of information transmit-receive when driving, and its development is also varied.But also there is a lot of defect:
1. filling antenna before, Performance comparision is reliable, but expensive, and maintenance difficult.
The most existing car antenna enormous size, common VHF antenna size length is all more than 1 meter, in use also
A Magnet base need to be added, it is difficult to be arranged in car.Additionally, antenna is long will also result in some traffic safety hidden danger；
3. antenna environment requires harshness, and in the automobile based on metal, the signal that antenna receives is had a greatly reduced quality, and has
May not have signal completely.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art or defect, the present invention provides a kind of VHF car antenna, and it leads to
Cross and aerial radiation form is optimized, can effectively solve antenna difference problem of antenna gain on different objects surface
And effectively reduce antenna volume.
To achieve these goals, present invention employs following technical scheme:
A kind of VHF car antenna includes: antenna body, and it is used for radiated electromagnetic wave signal, and described antenna body is by printing
Main resonance antenna on a circuit board and the primary radiation oscillator, the frequency modulation radiating doublet that are sequentially connected with and be welded in described tune
The auxiliary resonance composition of radio-frequency radiation oscillator one end；Coaxial connector, it is used for connecting described antenna body and transmitting electromagnetic wave letter
Number, described coaxial connector includes that a core and is located at the screen layer outside described core, and described screen layer is humorous with described master
Weld with shaking antenna；Antenna impedance adjusts circuit, and it is for by the impedance between described antenna body and described coaxial connector
Making impedance matching, described antenna impedance adjusts circuit and is printed on described circuit board, and described antenna impedance adjusts the one of circuit
End welds with described core, and described antenna impedance adjusts the circuit other end and is connected with described primary radiation oscillator；High-frequency signal suppresses
Device, it is used for suppressing high-frequency signal on described coaxial connector to radiate, and described high-frequency signal suppressor is fixed at described
Coaxial connector surface；Fixed component, its fixing for antenna, described fixed component is located at the back side of described antenna body.
It is preferred that described high-frequency signal suppressor is at least one-level magnet ring.
It is preferred that described high-frequency signal suppressor includes a first order magnet ring, a second level magnet ring, a third level magnet ring
And an antenna end magnet ring, and magnet ring at different levels is uniformly distributed from head and the afterbody of described coaxial connector.
It is preferred that described magnet rings at different levels directly merge the table at described coaxial connector by the way of plastic parts merges
Face.
It is preferred that described fixed component includes that an antenna back panel, described antenna back panel are located at the back side of described circuit board,
Described antenna back panel is provided with gum, is bonded in car by described antenna by described gum.
It is preferred that described fixed component further includes a high temperature foam, described high temperature foam is located at described circuit board and institute
State between antenna back panel.
It is preferred that described coaxial connector is RG174 cable.
Owing to have employed above-mentioned technological means, the application optimizes the forms of radiation of antenna, reduces antenna size, it is simple to
Install, and can adapt to multiple environment, the using effect of antenna will not be affected because of the difference using environment.
Accompanying drawing explanation
Fig. 1 is the front view of an embodiment of the application；
Fig. 2 is the side view of Fig. 1.
Label in figure:
1. first order magnet ring；2. second level magnet ring；3. the 3rd pole magnet ring；4. antenna end magnet ring；5. antenna impedance adjusts electricity
Road；6. main resonance antenna ground；7. primary radiation oscillator；8. frequency modulation radiating doublet；9. auxiliary resonance；10. high temperature foam；11. antennas
Backboard；12.RG174 coaxial wire
Detailed description of the invention
By following example the description that combines its accompanying drawing, it will be further appreciated that the purpose of its invention, concrete structure
Feature and advantage.
See shown in Fig. 1 and Fig. 2, respectively the front view of an embodiment of the application and side view.
VHF car antenna in the present embodiment includes first order magnet ring 1, second level magnet ring the 2, the 3rd pole magnet ring 3, antenna
End magnet ring 4, antenna impedance adjust circuit 5, main resonance antenna ground 6, primary radiation oscillator 7, frequency modulation radiating doublet 8, auxiliary resonance 9,
High temperature foam 10, antenna back panel 11 and RG174 coaxial wire 12.
Main resonance antenna ground 6, primary radiation oscillator 7, frequency modulation radiating doublet 8, auxiliary resonance 9 constitute the antenna of the present embodiment
Main body.And main resonance antenna ground 6 and primary radiation oscillator 7, the frequency modulation radiating doublet 8 being sequentially connected with are by the way of printed circuit
It is printed on same circuit board, and auxiliary resonance 9 is connected with described frequency modulation radiating doublet 8 by the way of welding.Whole antenna
The structure of main body is optimized, and is greatly reduced the volume of antenna body.Through experiment, the antenna of the application is at 170 millimeters of *
Communication efficiency under the volume of 29.5 millimeters just can reach the communication efficiency of existing 55 centimetres of antenna bodies on sale.
RG174 coaxial wire 12 is in the present embodiment as coaxial connector, and it is used for connecting described antenna body also
Transmission electromagnetic wave signal.RG174 coaxial wire 12 includes that a core and is located at the screen layer outside described core.RG174
Its core is connected by the way of welding by coaxial wire 12 with antenna impedance circuit 5.The cable of RG174 coaxial wire 12
Screen layer and main resonance antenna ground 6 are by being weldingly connected.
Although coaxial connector can select other adapter.But confirm through test of many times, in VHF frequency range,
The frequency of RG174 cable and pliability are optimal selections, because the thickest line cannot bend installing when,
And fine rule is because processing technology problem, loss ratio is bigger.
Antenna impedance adjusts circuit, and it is for doing impedance by the impedance between described antenna body and described coaxial connector
Coupling, described antenna impedance adjusts circuit and is printed on described circuit board the volume of the antenna that can reduce the present embodiment further,
And described antenna impedance adjusts one end of circuit and weld with described core, the described antenna impedance adjustment circuit other end and described master
Radiating doublet connects.
First order magnet ring 1, second level magnet ring the 2, the 3rd pole magnet ring 3 and antenna end magnet ring 4 constitute the high frequency letter of the present embodiment
Number suppressor.Described high-frequency signal suppressor is for suppressing the high-frequency signal on described RG174 coaxial wire 12 to radiate.
Meanwhile, because being VHF frequency, increasing magnet ring and the material of coaxial wire Yu surrounding can also be done an isolation.Described VHF
The first order magnet ring 1 of antenna, second level magnet ring the 2, the 3rd pole magnet ring 3 and antenna end magnet ring 4 are from the head of RG174 coaxial wire 12
Portion uniformly sets gradually to afterbody, and directly merges on the surface of RG174 coaxial wire 12 by the way of plastic parts merges.
Fixed component in the present embodiment fixing for antenna, described fixed component includes that an antenna back panel 11 and is high
Temperature foam 10.Described high temperature foam 10 is located at the back side of described circuit board, and described antenna back panel 11 is located at described high temperature foam 10
The back side.High temperature foam 10 can play certain cushioning effect in the driving process of car, offsets vehicle operation
The moderately gusty air infringement to antenna.Antenna back panel 11 is provided with gum, directly can be fixed in car by antenna back panel 11, install
The most convenient.High temperature foam 10 and antenna back panel 11 both can play the effect of fixed antenna, it is also possible to play isolated antennas with
The effect of surrounding.
The application optimizes the volume of antenna, conveniently installs, and owing to the increase of high-frequency signal suppressor can effectively be led to
Cross magnetic field and the radiant body on antenna is carried out electromagnetic field direction controlling, effectively solve antenna antenna on different objects surface
The difference problem of gain.
Should be understood that these embodiments are merely to illustrate the application rather than limit scope of the present application.In addition should manage
Solving, after having read the content that the application lectures, the application can be made various changes or modifications by those skilled in the art, this
A little equivalent form of values fall within the application appended claims limited range equally.
Claims (7)
1. a VHF car antenna, it is characterised in that including:
Antenna body, it is for radiated electromagnetic wave signal, and described antenna body is by the main resonance antenna being printed on a circuit board
Ground and the primary radiation oscillator being sequentially connected with, frequency modulation radiating doublet and the auxiliary resonance being welded in described frequency modulation radiating doublet one end
Composition；
Coaxial connector, it is used for connecting described antenna body and transmitting electromagnetic wave signal, and described coaxial connector includes a line
The screen layer outside described core is located at by core and, welds described screen layer and described main resonance antenna；
Antenna impedance adjusts circuit, and it is for doing impedance by the impedance between described antenna body and described coaxial connector
Joining, described antenna impedance adjusts circuit and is printed on described circuit board, and described antenna impedance adjusts one end of circuit with described
Core welds, and described antenna impedance adjusts the circuit other end and is connected with described primary radiation oscillator；
High-frequency signal suppressor, it is used for suppressing high-frequency signal on described coaxial connector to radiate, and described high-frequency signal presses down
Device processed is fixed at described coaxial connector surface；
Fixed component, its fixing for antenna, described fixed component is located at the back side of described antenna body.
VHF car antenna the most according to claim 1, it is characterised in that described high-frequency signal suppressor is at least one-level
Magnet ring.
VHF car antenna the most according to claim 2, it is characterised in that described high-frequency signal suppressor includes one first
Level magnet ring, a second level magnet ring, a third level magnet ring and an antenna end magnet ring, and magnet ring at different levels is from described coaxial connector
Head and afterbody are uniformly distributed.
4. according to the VHF car antenna described in Claims 2 or 3, it is characterised in that described magnet rings at different levels are merged by plastic parts
Mode directly merge on the surface of described coaxial connector.
VHF car antenna the most according to claim 1, it is characterised in that described fixed component includes an antenna back panel, institute
Stating antenna back panel and be located at the back side of described circuit board, described antenna back panel is provided with gum, by described gum by described antenna
It is bonded in car.
VHF car antenna the most according to claim 5, it is characterised in that described fixed component further includes a high temperature foam,
Described high temperature foam is located between described circuit board and described antenna back panel.
VHF car antenna the most according to claim 1, it is characterised in that described coaxial connector is RG174 cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860896.XA CN106252843B (en) | 2016-09-28 | 2016-09-28 | VHF vehicle-mounted antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860896.XA CN106252843B (en) | 2016-09-28 | 2016-09-28 | VHF vehicle-mounted antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106252843A true CN106252843A (en) | 2016-12-21 |
| CN106252843B CN106252843B (en) | 2021-05-11 |
Family
ID=57611740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610860896.XA Active CN106252843B (en) | 2016-09-28 | 2016-09-28 | VHF vehicle-mounted antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106252843B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111052497A (en) * | 2017-09-07 | 2020-04-21 | 原田工业株式会社 | Antenna device for vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489912A (en) * | 1994-09-08 | 1996-02-06 | Comant Industries, Inc. | Non-resonant antenna and feed apparatus therefor |
| WO2000069021A1 (en) * | 1999-05-05 | 2000-11-16 | Asg Technology Limited | Concealed radio antenna system |
| CN1981408A (en) * | 2004-03-31 | 2007-06-13 | Ace技术株式会社 | Multiband antenna using whip having independent power feeding in wireless telecommunication terminal |
| CN102017301A (en) * | 2008-10-30 | 2011-04-13 | 罗德施瓦兹两合股份有限公司 | Broadband antenna |
| CN104577322A (en) * | 2015-01-30 | 2015-04-29 | 东莞市仁丰电子科技有限公司 | Two-in-one double-feeder multiband omnidirectional high-gain PCB (printed circuit board) antenna |
| CN104701604A (en) * | 2014-12-27 | 2015-06-10 | 广东盛路通信科技股份有限公司 | Inverted-F broadband antenna suitable for vehicle's mobile communication |
| CN204720544U (en) * | 2015-05-05 | 2015-10-21 | 陕西特恩电子科技有限公司 | A kind of conllinear UHF/VHF wideband omnidirectional antenna |
| CN105846090A (en) * | 2016-04-08 | 2016-08-10 | 东南大学 | Coaxial feed metal through hole stepped-impedance half slot antenna |
| CN206116607U (en) * | 2016-09-28 | 2017-04-19 | 上海移为通信技术股份有限公司 | VHF vehicle antenna |
-
2016
- 2016-09-28 CN CN201610860896.XA patent/CN106252843B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489912A (en) * | 1994-09-08 | 1996-02-06 | Comant Industries, Inc. | Non-resonant antenna and feed apparatus therefor |
| WO2000069021A1 (en) * | 1999-05-05 | 2000-11-16 | Asg Technology Limited | Concealed radio antenna system |
| CN1981408A (en) * | 2004-03-31 | 2007-06-13 | Ace技术株式会社 | Multiband antenna using whip having independent power feeding in wireless telecommunication terminal |
| CN102017301A (en) * | 2008-10-30 | 2011-04-13 | 罗德施瓦兹两合股份有限公司 | Broadband antenna |
| CN104701604A (en) * | 2014-12-27 | 2015-06-10 | 广东盛路通信科技股份有限公司 | Inverted-F broadband antenna suitable for vehicle's mobile communication |
| CN104577322A (en) * | 2015-01-30 | 2015-04-29 | 东莞市仁丰电子科技有限公司 | Two-in-one double-feeder multiband omnidirectional high-gain PCB (printed circuit board) antenna |
| CN204720544U (en) * | 2015-05-05 | 2015-10-21 | 陕西特恩电子科技有限公司 | A kind of conllinear UHF/VHF wideband omnidirectional antenna |
| CN105846090A (en) * | 2016-04-08 | 2016-08-10 | 东南大学 | Coaxial feed metal through hole stepped-impedance half slot antenna |
| CN206116607U (en) * | 2016-09-28 | 2017-04-19 | 上海移为通信技术股份有限公司 | VHF vehicle antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111052497A (en) * | 2017-09-07 | 2020-04-21 | 原田工业株式会社 | Antenna device for vehicle |
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| Publication number | Publication date |
|---|---|
| CN106252843B (en) | 2021-05-11 |
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