CN2800505Y - Automobile antenna device - Google Patents
Automobile antenna device Download PDFInfo
- Publication number
- CN2800505Y CN2800505Y CN 200520057013 CN200520057013U CN2800505Y CN 2800505 Y CN2800505 Y CN 2800505Y CN 200520057013 CN200520057013 CN 200520057013 CN 200520057013 U CN200520057013 U CN 200520057013U CN 2800505 Y CN2800505 Y CN 2800505Y
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- CN
- China
- Prior art keywords
- antenna
- signal
- car
- loop
- signal amplifier
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automobile antenna device which comprises a main antenna and a loop subsidiary antenna, wherein the main antenna is composed of a signal transmission line, an automobile roof and a signal amplifier; the loop subsidiary antenna is composed of an automobile roof, a signal transmission line, a signal amplifier and a radio casing, wherein the automobile roofs and the signal transmission lines are the common combination parts of the main antenna and the subsidiary antenna. A signal loop is formed by the automobile roof, the radio casing and the signal transmission line thereof, and the loop subsidiary antenna is formed. Signals received by each automobile roof which respectively forms one part of the main antenna and the loop subsidiary antenna are respectively radiated to wires of the main antenna which is fixed on the automobile roof. The purpose of enhancing signal strength and improving signal reception effect can be achieved.
Description
Technical field the utility model relates to a kind of car antenna device, particularly auto radio FM (frequency modulation)/AM (amplitude modulation) signal receiving device.
All dispose broadcast receiver on the background technology Hyundai Motor, because automobile all is the state that is in motion in considerable time, therefore the use of most of automobile radio reception is not a fixed place, but is in motion.Because broadcast singal is subjected to the influence of topography and geomorphology, when zones of different and orientation, the power of signal is also different entirely, therefore general antenna is that main auto radio is when receiving broadcast signal, often can not receive weak signal, perhaps can receive signal, but signal effect is bad, makes broadcast receiver not use or wireless weak effect.How to improve the ability of the received signal of automobile radio reception, to adapt to the signal power of zones of different, it as the Taiwan utility model patent number is 0093206005 shark fins moulding antenna embodiment, utilize the signal of the polarised direction of metallic plate electrode couple antenna to carry out radiation, reach the intensity that increases signal, to improve reception, but it has outstanding shortcoming is exactly the restriction that signal to the polarised direction radiant panel that carries out radiation is subjected to dipole antenna device, be difficult to make more signal radiation to give dipole antenna, to improve the intensity of signal, improve wireless radio reception effect.
Provide a kind of technical scheme on the utility model content main purpose of the present utility model, be subjected to the restriction of antenna assembly to solve signal radiation plate size in the present technology, and the loop antenna that utilizes car body and antenna member to form, thereby reach the characteristic of improving received signal, improve the purpose of antenna gain, directivity and polarity.
To achieve these goals, can take two kinds of methods that existing car antenna is improved.
The first, improvement to main antenna, wherein main antenna is by wire, plastic body, signal amplifier, car body is formed, wherein main antenna is fixed in the roof top of automobile, be characterized in to utilize car body to receive more signal, car roof can be used as the use of signal radiation device simultaneously, utilize car roof the part signal radiation to be given on the main antenna receiving system metal wire 6 that is fixed on the car roof, increase the signal strength signal intensity on the main antenna, adopt this mode of coiling copper wire structure in the plastic body outside simultaneously, can increase the effective electronic length of main antenna receiving system, make the main antenna signal that receives radiation as much as possible, thereby reach the gain effect that improves antenna, wherein have a space to be used to place signal amplifier in the plastic body inboard.
It two is, increase antenna amount, reach the radiation signal intensity of enhancing, utilize the structure of automobile and main antenna, increase by an inner loop road slave antenna, wherein, the loop slave antenna comprises the ground wire of the signal transmission silk in the main antenna, wireless casing (being ground wire) and form by car roof, form a ground wire with car body and main antenna signal transmission silk, wireless casing (being ground wire) constitutes a big loop slave antenna, is characterized in utilizing the loop slave antenna, increases the signal strength signal intensity that receives, and to the radiation intensity of signal, thereby reach the receiving ability of enhancing signal, improve characteristics of signals, improve the radio reception effect.
Be drawing explanation of the present utility model below the description of drawings:
Fig. 1 is the utility model car antenna device schematic diagram.
Fig. 2 is the utility model car antenna device main antenna structural representation.
Fig. 3 is the utility model car antenna device loop antenna loop schematic diagram.
Embodiment is described in further detail the utility model below in conjunction with drawings and Examples.
Shown in 1 figure, main antenna 1 is fixed on the car roof 7, signal amplifier 9 is positioned in main antenna 1 plastic body 8, between the ground wire of signal amplifier 9 and car roof 7 bearings, be connected with 100nh inductance and 27pf electric capacity, be allowed to condition at FM (frequency modulation) section and form high resistant, the ground wire 4 of signal transmssion line and the casing (being ground wire) of broadcast receiver 5, and body of a motor car forms certain AC impedance, therefore form a loop slave antenna, wherein 10 is the loop directions that constitute, utilize antenna reciprocity theorem and aerial array principle, make car roof portion 7 absorb FM (frequency modulation) signal from the external world, and give metallic conductor on the main antenna 1 with its radiation, and reach and improve gain, improve the directivity and the polarity purpose of antenna.
The wiring of the ground wire 4 in the signal transmssion line has dual mode:
As shown in Figure 1 a kind of, can connect up to the automobile back from main antenna 1 fixing position, be connected with broadcast receiver 5 casings (being ground wire) after passing through automobile chassis again, its advantage is that the loop ratio of the loop slave antenna that constitutes is bigger, amount of radiation to main antenna 1 will strengthen, can effectively improve reception, but shortcoming is the length that needs to increase signal transmssion line to signal.
Another kind as shown in Figure 3, can pass through automobile top, be connected with broadcast receiver 5 casings (being ground wire) that are positioned over driver's cabin the place ahead again, its shortcoming is that the loop of loop slave antenna is big inadequately, thereby the radiation to signal is little, cause the antenna reception good inadequately, advantage is to reduce the length of signal transmssion line.Therefore can choose suitable wire laying mode as required.
Shown in 2 figure, main antenna 1 comprises the copper wire 6 of plastic body 8 and coiling outside it, wherein at plastic body 8 lateral surface coiling copper wires 6, and between the every copper wire certain spacing is arranged, plastic body 1 is a lid shape, and there is certain space in portion within it, is used to place signal amplifier 9.Described copper wire 6 can be other any conductor that can conduct electricity, and its shape also can with wire or band shape.Above-mentioned coiling copper wire one end is connected with signal amplifier 9 signal input parts.
Claims (4)
1, a kind of car antenna device comprises antenna, signal transmssion line, signal amplifier, and its feature is being: main antenna and loop slave antenna, wherein,
Main antenna is made up of car roof, wire, plastic body, signal amplifier, and described wire is wound on the plastic body outside, and an end wiry is connected with ground on the signal amplifier;
The annular secondary antenna is made up of car roof, signal transmssion line, signal amplifier and wireless ground wire, and described car roof is connected with ground wire and wireless ground wire in the signal transmssion line;
Described main antenna and loop slave antenna, wherein car roof, signal transmssion line and signal amplifier are common ground.
2, car antenna device as claimed in claim 1, it is characterized in that, main antenna is fixed on car roof portion, the wire that wherein is wound on the plastic body outside is wire or banded conductive metal, certain space is arranged between the metallic conductor, an end wiry is connected with ground wire on the signal amplifier, and described plastic body is for to cover shape, and portion is placed with signal amplifier within it.
3, car antenna device as claimed in claim 1 is characterized in that, constitutes the part of loop antenna by car body, and is connected to inductance and electric capacity between ground wire on the signal amplifier and the car roof bearing.
4, car antenna device as claimed in claim 1 or 2 is characterized in that, main antenna and loop slave antenna all are to be the parts of signal radiation with the car roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057013 CN2800505Y (en) | 2005-04-18 | 2005-04-18 | Automobile antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057013 CN2800505Y (en) | 2005-04-18 | 2005-04-18 | Automobile antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800505Y true CN2800505Y (en) | 2006-07-26 |
Family
ID=36842998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057013 Expired - Fee Related CN2800505Y (en) | 2005-04-18 | 2005-04-18 | Automobile antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800505Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891361A (en) * | 2011-07-19 | 2013-01-23 | 柯玉荣 | Antenna system for vehicle |
| CN103140983A (en) * | 2010-09-30 | 2013-06-05 | 莱尔德技术股份有限公司 | Low-profile antenna assembly |
| CN104378127A (en) * | 2013-08-16 | 2015-02-25 | 通用汽车环球科技运作有限责任公司 | Motor vehicle antenna system |
| CN106954175A (en) * | 2017-01-23 | 2017-07-14 | 斑马信息科技有限公司 | The aerial signal optimization system and method for internet automobile |
| CN107005258A (en) * | 2014-12-05 | 2017-08-01 | 株式会社村田制作所 | System, method and module that RF signals for motor vehicles are covered |
| CN105322996B (en) * | 2014-07-29 | 2019-01-15 | 恩智浦有限公司 | Cooperate with aerial diversity radio receiver |
-
2005
- 2005-04-18 CN CN 200520057013 patent/CN2800505Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103140983A (en) * | 2010-09-30 | 2013-06-05 | 莱尔德技术股份有限公司 | Low-profile antenna assembly |
| CN103140983B (en) * | 2010-09-30 | 2015-04-15 | 莱尔德技术股份有限公司 | Low-profile antenna assembly |
| CN102891361A (en) * | 2011-07-19 | 2013-01-23 | 柯玉荣 | Antenna system for vehicle |
| CN104378127A (en) * | 2013-08-16 | 2015-02-25 | 通用汽车环球科技运作有限责任公司 | Motor vehicle antenna system |
| CN105322996B (en) * | 2014-07-29 | 2019-01-15 | 恩智浦有限公司 | Cooperate with aerial diversity radio receiver |
| CN107005258A (en) * | 2014-12-05 | 2017-08-01 | 株式会社村田制作所 | System, method and module that RF signals for motor vehicles are covered |
| CN107005258B (en) * | 2014-12-05 | 2021-06-18 | 株式会社村田制作所 | System, method and module for RF signal coverage of a motor vehicle |
| CN106954175A (en) * | 2017-01-23 | 2017-07-14 | 斑马信息科技有限公司 | The aerial signal optimization system and method for internet automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 |