CN2648621Y - Resonant antenna device for vehicle radio set - Google Patents
Resonant antenna device for vehicle radio set Download PDFInfo
- Publication number
- CN2648621Y CN2648621Y CN 03270735 CN03270735U CN2648621Y CN 2648621 Y CN2648621 Y CN 2648621Y CN 03270735 CN03270735 CN 03270735 CN 03270735 U CN03270735 U CN 03270735U CN 2648621 Y CN2648621 Y CN 2648621Y
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- CN
- China
- Prior art keywords
- antenna
- circuit
- resonance
- dielectric sheet
- antenna device
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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 provides a resonance-typed antenna device of car radios, electrically connected before a wireless receiving circuit that is used for receiving signal of at least a wireless band. The antenna device contains an antenna dielectric board and a winding wire layer is overspread on the antenna dielectric board that is divided into an FM antenna area and an AM antenna area. At least an inductor is arranged on the antenna dielectric board, electrically connected to the winding wire layer of the FM antenna area, so as to form a frequency resonance loop and form a resistance match with the wireless band of the receiving circuit of the radio, then amplify the received wireless signal by a strong wave circuit that is arranged on a circuit board so as to realize the purpose of receiving the best signal on the wireless band of the car radios.
Description
Technical field
The utility model relates to a kind of resonance antenna device of auto radio, in particular to a kind of antenna assembly that uses on the automobile AM/FM broadcast receiver, has the receiving antenna device that strengthens the broadcast receiver radio frequency signals.
Background technology
Because the progress of radiotechnics, many products are wireless penetration gradually all, the problem that perplexs most in radiotechnics is exactly the design of antenna, antenna is relevant with wireless frequency, direction and received-signal strength, the design of general antenna all is to rely on radio wave to calculate the long rod shape of metallic that 1/4 λ designs certain-length, take up space very much, also therefore just must be designed to concertina type as the radio antenna on the automobile, stretch out during startup, withdrawal when closing, but be to use for a long time and can have broken down and can't stretch, therefore quite inconvenience.
So just the someone researches and develops helical antenna, will grow the curved coiled of excellent metal, but the radio reception degree of this helical antenna is unsatisfactory.Therefore so-called glass antenna design is just arranged, and with attached being affixed on the vehicle glass of soft type conductive material, yet this kind material is quite expensive.Also there are many flat plane antennas of laying a special curvature on the printed circuit board (PCB) that utilize to produce, it is exactly can not be near the material apart from metal covering that this kind flat plane antenna has a very big shortcoming, since the metal radio wave absorbing, and automobile case is metallic, makes this flat plane antenna can not receive signal.
The utility model content
The purpose of this utility model is for solving the inconvenience that radio receiving antenna had and the disappearance of existing auto radio, and a kind of resonance antenna device of auto radio is provided, and reach the purpose of the received signal that improves the broadcast receiver radio frequency by following technological means:
Major technique feature of the present utility model provides a kind of resonance antenna device of auto radio, it is electrically connected in before the radio receiver circuit, in order to receive the signal of a radio bands, it comprises: an antenna dielectric sheet, be covered with a tortuous conductor layer on it, and divide into a FM antenna field and an AM antenna field, dispose at least one inductor on this antenna dielectric sheet, and be electrically connected to the tortuous conductor layer of this FM antenna field, form a frequency resonance loop by this complications conductor layer and this inductor, broadcast receiver radio bands proper and that this radio receiver circuit is received forms the impedance matching value, provides the effect that receives the best radio frequency to reach.
Second technical characterictic of the present utility model provides the resonance antenna device of above-mentioned auto radio, it more includes a circuit board, which is provided with a high-amplitude wave circuit, be electrically connected to the tortuous conductor layer of this antenna dielectric sheet, and this high-amplitude wave circuit comprises the radio frequency band signal of an AM/FM, export this radio receiver circuit again to, to reach the effect that improves the radio frequency received signal.
Another technical characterictic of the present utility model just provides the resonance antenna device of above-mentioned auto radio, it further comprises a flasher, be disposed on this antenna dielectric sheet, form by a light-emittingdiode and a flasher circuit, this flasher circuit drives the light that this light-emittingdiode produces flicker, makes resonance antenna of the present utility model have effect attractive in appearance.
Description of drawings
Fig. 1 is the embodiment three-dimensional exploded view of utility model;
Fig. 2 is the circuit block diagram of the utility model embodiment;
Fig. 3 is an embodiment circuit diagram of the present utility model;
Fig. 4 is the spectrum diagram of the utility model frequency response.
Graphic each device symbol description
1 radio receiver circuit
10 resonance antennas
11 antenna dielectric sheets
12 inductors
13 circuit boards
131 AM signal amplification circuits
132 FM signal amplification circuits
133 power circuits
134 flasher circuits
14 tortuous conductive layers
15 light-emittingdiodes
16 antenna housings
Embodiment
As shown in Figure 1, it is the embodiment three-dimensional exploded view of the utility model auto radio resonance antenna, and Fig. 2 is the circuit block diagram of the utility model embodiment.And Fig. 3 is an embodiment circuit diagram of the present utility model.The resonance antenna device 10 of auto radio of the present utility model mainly was to use before a radio receiver circuit 1, in order to receive a wireless radio frequency band signal.
Resonance antenna device 10 of the present utility model is connected on the aerial signal input of this radio receiver circuit 1, this antenna assembly 10 is made up of an antenna dielectric sheet 11, six inductors 12 and a circuit board 13, wherein this antenna dielectric sheet 11 is a non-conductive material, for example can be a printed circuit board (PCB), all being covered with on the two sides of this antenna dielectric sheet 11 has at least one tortuous conductive layer 14, and divides into an AM antenna field and a FM antenna field.
Wherein this inductor 12 is configured on this antenna dielectric sheet 11, and be electrically connected to the tortuous conductive layer 14 in this FM antenna field winter, this inductor 12 can form a frequency resonance loop with the tortuous conductive layer 14 of this FM antenna field, on the wireless radio frequency band of FM that the frequency response range of its resonance drops on this radio receiver circuit just and received, make resonance antenna 10 of the present utility model produce splendid anti-coupling with this radio receiver circuit 1, the impedance matching value of present embodiment is for approaching 50 ohm approximately.
Because antenna dielectric sheet 11 of the present utility model is quite short, its length dimension is no more than 7 centimeters, make that antenna volume is quite little, in order to increase the range of receiving of radio signal, the utility model uprightly is arranged at this antenna dielectric sheet 11 on this circuit board 13, and in order to strengthen received signal, on this circuit board 13, be provided with a high-amplitude wave circuit, in order to amplify the received radio frequency signals of the utility model resonance antenna 10.
And general broadcast receiver has the receive frequency of AM and FM, so the high-amplitude wave circuit on circuit board 13 of the present utility model includes an AM signal amplification circuit 131 and a FM signal amplification circuit 132, and be electrically connected in AM antenna field and FM antenna field on this antenna dielectric sheet 11 respectively, in order to amplify the radio frequency band signal of AM and FM, export this radio receiver circuit 1 again to.
Include a power circuit 133 and a flasher circuit 134 on this circuit board 13 again, wherein this power circuit 133 mainly can provide a stabilized power supply to this high-amplitude wave circuit.And wherein this flasher circuit 134 is connected to a light-emittingdiode 15, forms a flasher, and this light-emittingdiode 15 is disposed on this antenna dielectric sheet 11, and this flasher circuit 134 can drive the flickering flicker light of these light-emittingdiode 15 generations.
Because volume of the present utility model is little, on the broadcast receiver that can be used in automobile, so design one antenna housing 16 coats this antenna dielectric sheet 11 and this circuit board 13, as Fig. 1, this antenna housing 16 is arranged on the automobile top, forms the antenna appearance of a good looking appearance, especially as the tail shape of aircraft, adding that this flasher is positioned at coruscates luminously on the rear end at the top of this antenna housing, more can increase the aesthetic feeling of the utility model antenna.
And the utility model resonance antenna 10 is through behind the actual experiment, the spectrum diagram of its frequency response as shown in Figure 4, the scope that shows this frequency spectrum among the figure from 30KHz to 300MHz between, and the utility model embodiment is just at 540K～1600KHz and 88MHz～108MHz AM and the wireless frequency band of FM place, can form the waveform of 50 ohm of tool impedance matching values (standing-wave ratio＜=2), meet the requirement of radio antenna design coupling.
Therefore, the utility model resonance antenna device.Really can provide a kind of far different, really can improve the use value of integral body, and not see publication or public use before its application, therefore meet the requirement of novel patent by above-mentioned technology contents in existing structure design.
Above-mentioned graphic, explanation only be embodiment of the present utility model, allly be skillful in this operator and can do other all improvement according to above-mentioned explanation, and these change still belong to invention spirit of the present utility model and below in the claim that defined.
Claims (11)
1. the resonance antenna device of an auto radio is electrically connected in before the radio receiver circuit, in order to receive at least one broadcast receiver radio frequency band signal, it is characterized in that: comprising:
One antenna dielectric sheet is a non-conductive material, is covered with at least one tortuous conductor layer on it;
At least one inductor is disposed on this antenna dielectric sheet, and is electrically connected in this complications conductor layer, forms a frequency resonance loop with this complications conductor layer, and radio bands proper and that this radio receiver circuit is received forms impedance matching.
2. resonance antenna device as claimed in claim 1 is characterized in that: this antenna dielectric sheet is a printed circuit board (PCB).
3. resonance antenna device as claimed in claim 1 is characterized in that: the tortuous conductor layer on this antenna dielectric sheet is divided into an AM antenna field and a FM antenna field.
4. resonance antenna device as claimed in claim 1 is characterized in that: this inductor is electrically connected to the tortuous conductor layer of this FM antenna field.
5. resonance antenna device as claimed in claim 1 is characterized in that: the impedance matching value that produces between this frequency resonance loop and this radio receiver circuit is for approaching 50 ohm.
6. resonance antenna device as claimed in claim 1, it is characterized in that: it further comprises a circuit board, which is provided with a high-amplitude wave circuit, be electrically connected to the tortuous conductor layer of AM/FM antenna field on this antenna dielectric sheet, and be electrically connected to this radio receiver circuit by a holding wire.
7. resonance antenna device as claimed in claim 6 is characterized in that: this antenna dielectric sheet stands on this circuit board.
8. resonance antenna device as claimed in claim 7 is characterized in that: this antenna dielectric sheet is an irregular triangular shape, to shorten the height of this antenna dielectric sheet.
9. resonance antenna device as claimed in claim 6 is characterized in that: this high-amplitude wave circuit comprises:
One AM signal amplification circuit. it is electrically connected to the tortuous conductor layer of AM antenna field on this antenna dielectric sheet, receives AM broadcast receiver radio frequency band signal, and exports this radio receiver circuit after being amplified to;
One FM signal amplification circuit, it is electrically connected in the tortuous conductor layer of FM antenna field on this antenna dielectric sheet, receives the signal of FM radio bands, and exports this radio receiver circuit after being amplified to;
One power circuit, it provides this AM signal amplification circuit and the required power supply of this FM signal amplification circuit.
10. resonance antenna device as claimed in claim 1 is characterized in that: it more comprises a flasher, is disposed on this antenna dielectric sheet, can send flickering light.
11. resonance antenna device as claimed in claim 10 is characterized in that: this flasher comprises:
One light-emittingdiode;
One flasher circuit is connected in this light-emittingdiode, drives the light that this light-emittingdiode produces flicker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270735 CN2648621Y (en) | 2003-08-14 | 2003-08-14 | Resonant antenna device for vehicle radio set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270735 CN2648621Y (en) | 2003-08-14 | 2003-08-14 | Resonant antenna device for vehicle radio set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648621Y true CN2648621Y (en) | 2004-10-13 |
Family
ID=34330590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03270735 Expired - Fee Related CN2648621Y (en) | 2003-08-14 | 2003-08-14 | Resonant antenna device for vehicle radio set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2648621Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101390256A (en) * | 2006-11-22 | 2009-03-18 | 日本安特尼株式会社 | Antenna device |
| CN101262235B (en) * | 2008-04-22 | 2011-09-14 | 蒋小平 | Car top-set wireless device and its wireless amplifier |
| CN101611514B (en) * | 2007-02-15 | 2013-07-24 | 莱尔德技术股份有限公司 | Mobile wideband antennas |
-
2003
- 2003-08-14 CN CN 03270735 patent/CN2648621Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101390256A (en) * | 2006-11-22 | 2009-03-18 | 日本安特尼株式会社 | Antenna device |
| CN101611514B (en) * | 2007-02-15 | 2013-07-24 | 莱尔德技术股份有限公司 | Mobile wideband antennas |
| CN101262235B (en) * | 2008-04-22 | 2011-09-14 | 蒋小平 | Car top-set wireless device and its wireless amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |