CN2109640U - Mini tv set antenna - Google Patents
Mini tv set antenna Download PDFInfo
- Publication number
- CN2109640U CN2109640U CN 91230985 CN91230985U CN2109640U CN 2109640 U CN2109640 U CN 2109640U CN 91230985 CN91230985 CN 91230985 CN 91230985 U CN91230985 U CN 91230985U CN 2109640 U CN2109640 U CN 2109640U
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- printed board
- capacitor
- utility
- inductance coil
- model
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Abstract
The utility model relates to a mini TV receiving antenna, comprising a printed board, an output terminal, coaxial cable wires, and a coaxial cable plug. In the utility model, a receiving device which is composed of inductance coils L and a capacitor C is installed on the printed board, the inductance coils L and the capacitor C which is composed of various geometric figures cover the printed board respectively, and the printed board is formed by that single-side metallic copper film is adopted to print a thin-film board. The mini TV receiving antenna of the utility model has the advantages of low cost, simple structure, light and handy volume, and beautiful appearance. The utility model achieves the effects of double image elimination and sharp receiving images for each frequency channel, being suitable for being used as an indoor-outdoor television receiving antenna.
Description
The utility model relates to a kind of television receiving antenna, particularly a kind of micro-television reception antenna.
Existing indoor and outdoor active tv reception antenna is made up of element antenna, VHF, UHF amplifier etc.The output level of this antenna immobilizes, and is the directionality television receiving antenna that belongs to traditional, and at present commercially available is exactly such antenna.Because output level is constant, reception is undesirable, regulates inconvenience and time-consuming in addition, is subjected to the easy ghost images that produce of obstacle reflection such as high building during reception again, and effect is watched in influence.Existing people is improved the novel television receiving antenna of development by every means, as increase by one gain control-Chinese patent CN90207019 at output, the ultrathin television receiving antenna of CN85203880-etc., watch effect still can, but complex structure and regulate also inconvenience.Chinese patent CN912158-98(CN91215898 and for example)-the micro-television reception antenna, though can overcome above-mentioned deficiency is the good television receiving antenna of little, the round-the-clock selectivity of a kind of volume, but still the need discrete component of some, cost is also higher, and the utility model is improved the micro-television reception antenna.
The purpose of this utility model provides the round-the-clock micro-television reception antenna that a kind of volume is light and handy, cost is low, reception is good, is developed on the basis of above-mentioned micro-television reception antenna.
The utility model is realized as follows: it comprises printed board, lead-out terminal, coaxial wire, coaxial cable plug, in printed board, also install one by inductance coil L, the receiving system that capacitor C constitutes, the end of inductance coil L is connected with an end of capacitor C, the other end is connected on the lead-out terminal, the other end of capacitor C also is connected on the lead-out terminal, inductance coil L, capacitor C is to cover respectively in the printed board, electric capacity is made up of the various geometric figures that cover in the printed board, printed board is to adopt single face metal copper film thin web, its thickness is about 1～2 millimeter, size is directly proportional with the number of turns of inductance coil L and the quantity of capacitor C, and the number of turns of inductance coil L is more than 2 circles.
Because micro-television receiving antenna device of the present utility model is the printed film plate that adopts single face metal copper film, so when frequency electromagnetic waves just can receive the TV signal of each channel effectively and send into the television set high-frequency receiver through the receiving system that inductance coil L, capacitor C constitute when metal copper film surface induction goes out high-frequency current, its receiving sensitivity depends on the size and the receive direction of induction area, also promptly receives the strongest composite video signal in the minimum area scope effectively.Again owing to be to adopt the monolithic single-sided printed board, so under the condition that does not reduce receiving sensitivity, improved the selectivity and the antijamming capability of reception antenna, be to cover respectively in the single-sided film printed board because of inductance coil L, the capacitor C that constitutes receiving system of the present utility model again, so its good looking appearance is light and handy, simple in structure, cost is low, easily manufactured, reception is good in addition, so each channel all has satisfied reception, be not subjected to influencing of external environment again, Installation and Debugging are convenient.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is an electrical schematic diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
As shown in Figure 1, when frequency electromagnetic waves is inducing high-frequency current is sent into television set by lead-out terminal after inductance coil L, capacitor C receive frequency-selecting high-frequency receiver between the surface of inductance coil L, capacitor C and copper film, the number of turns of its faradic size and inductance coil L and the quantity of capacitor C are relevant.
As shown in Figure 2; printed board 1 is to adopt commercially available single face copper film epoxy printed film plate to coat with the protection paint that generally is insoluble to ferric trichloride in the one side of its copper film; to draw thereon the inductance coil number of turns in advance (generally more than 2 circles; now be 7 circles) and the various geometric figures that constitute capacitor C keep (promptly can not paint); immerse then and can obtain required inductance coil L and capacitor C after corroding cleaning in the liquor ferri trichloridi; be drilled with the aperture of installing hole and lead-out terminal 2 more thereon; again lead-out terminal 2 is connected coaxial wire 3 and connect plug 4 again, the receiving system that assembles is installed in the shell of different shape and gets final product.
Claims (3)
1, a kind of micro-television reception antenna, comprise printed board 1, lead-out terminal 2, coaxial wire 3, coaxial cable plug 4, it is characterized in that in printed board 1, also installing a receiving system that constitutes by inductance coil L, capacitor C, the end of inductance coil L is connected with an end of capacitor C, and the other end is connected on the lead-out terminal 2.
2, by the described micro-television reception antenna of claim 1, it is characterized in that above-mentioned inductance coil L, capacitor C all are to cover respectively in the printed board 1, printed board 1 is to adopt single face metal copper film printed film plate, thickness is about 1～2 millimeter, size is directly proportional with the number of turns of inductance coil L and the quantity of capacitor C, is about 30～150 millimeters
2
3, by the described micro-television reception antenna of claim 1, it is characterized in that capacitor C is to be made of the square, circle, the rectangle figures that cover in the printed board 1, the number of turns of inductance coil L is more than 2 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230985 CN2109640U (en) | 1991-11-30 | 1991-11-30 | Mini tv set antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230985 CN2109640U (en) | 1991-11-30 | 1991-11-30 | Mini tv set antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2109640U true CN2109640U (en) | 1992-07-08 |
Family
ID=4936252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91230985 Granted CN2109640U (en) | 1991-11-30 | 1991-11-30 | Mini tv set antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2109640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427161A (en) * | 2013-08-23 | 2013-12-04 | 镇江飞利克斯电子有限公司 | Television antenna |
-
1991
- 1991-11-30 CN CN 91230985 patent/CN2109640U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427161A (en) * | 2013-08-23 | 2013-12-04 | 镇江飞利克斯电子有限公司 | Television antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |