CN201118873Y - Mobile communication terminal with Bluetooth antenna - Google Patents
Mobile communication terminal with Bluetooth antenna Download PDFInfo
- Publication number
- CN201118873Y CN201118873Y CNU2007200243954U CN200720024395U CN201118873Y CN 201118873 Y CN201118873 Y CN 201118873Y CN U2007200243954 U CNU2007200243954 U CN U2007200243954U CN 200720024395 U CN200720024395 U CN 200720024395U CN 201118873 Y CN201118873 Y CN 201118873Y
- Authority
- CN
- China
- Prior art keywords
- bluetooth antenna
- copper foil
- mobile communication
- antenna
- communication terminal
- 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.)
- Expired - Fee Related
Links
- 238000010295 mobile communication Methods 0.000 title claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000011889 copper foil Substances 0.000 claims abstract description 39
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 230000005404 monopole Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a mobile communication terminal with a blue tooth antenna, which comprises a machine casing and a PCB circuit board. A copper foil is covered on the PCB signal feed point, the copper foil extends out the other parts covering the signal feed point and is contacted with a main board through ground, the blue tooth antenna is fixed on the inner wall of a mobile phone casing, and the feed point of the blue tooth antenna is connected with the PCB signal feed point through the copper foil. The design is mainly applied to the miniaturized mobile phones, and through the processing to the feed circuit, the clutter signals which are liable to antenna interference can be eliminated.
Description
Technical field
The utility model belongs to the mobile communication terminal technical field, is more particularly to the mobile communication terminal that has bluetooth frequency range short range wireless transmission.
Background technology
Present mobile communication terminal all is required miniaturization, lightening and multi-functional execution.Tackle this demand, a kind of trend be various terminals all integrated Bluetooth function.
Bluetooth technology is actually a kind of short-range radio technology, " bluetooth " technology of utilization, can simplify the communication between the mobile communication terminal devices such as palmtop PC, notebook computer and mobile phone handsets effectively, also can successfully simplify communicating by letter between above these equipment and the internet Internet, thereby make the transfer of data between these modern communications equipments and the internet become efficient more rapidly, be the radio communication widening road.WLAN (wireless local area network) product and increasing mobile phone have been supported Bluetooth technology successively now, and bluetooth earphone has become the indispensable option of mobile phone.The designing requirement peripheral assembly of bluetooth earphone is few, and the integrated level height carries and operate all more convenient.Because popularizing with the mobile phone profile rapidly of Bluetooth function is more and smaller and more exquisite, the shape of Bluetooth antenna and the installation way of contact are all wanted and should be changed a lot like this.
Along with on the continuous development of product structure and manufacturing process and the market to the requirement of mobile phone miniaturization, the antenna volume that is used for the Bluetooth signal transmission also is that requirement is more and more littler.The paster antenna that present small-sized electronic product mounts easily such as the general employing of the Bluetooth antenna in the mobile phone, require the space bigger, on the structure of a lot of terminals, be difficult to satisfy the requirement on the space, and to leave the space of antenna for more little in mobile phone inside, and the influence that Bluetooth antenna is subjected to surrounding structure spare and function element is big more.Because the radiation efficiency of Bluetooth antenna often is subjected to the interference of other clock in the system generally all than higher, the performance of antenna is had a greatly reduced quality, thereby even under the reasonable situation of wireless power, bluetooth communication still can be heard various noises.What the effect of applying Bluetooth just became on actual product like this is very poor, can't reach desirable transmission range.
Summary of the invention
The purpose of this utility model is installed on the shell of product with regard to providing a kind of small-sized antenna, shielded the interference signal of peripheral devices by the connected mode of a kind of special antenna and feedback point, thereby transmitting and receiving of Bluetooth antenna reached effect preferably.
To achieve these goals, the utility model comprises casing and PCB circuit board, Copper Foil of the top covering of PCB signal feed, Copper Foil contacts with having more the other parts that cover signal feed and on every side mainboard, Bluetooth antenna is fixed on the hand set machine shell inwall, and Bluetooth antenna feedback point is connected with the PCB signal feed by described Copper Foil.
In the technical solution of the utility model, also have following technical characterictic: the thickness of Copper Foil is 0.5mm, and the area of Copper Foil is greater than the area of PCB signal feed.
In the technical solution of the utility model, also have following technical characterictic: the one side that Copper Foil contacts with the PCB signal feed has and possesses close-burning non-conductive adhesive.
In the technical solution of the utility model, also have following technical characterictic: the thickness of non-conductive adhesive is 0.2-0.5mm.
In the technical solution of the utility model, also have following technical characterictic: Bluetooth antenna is quarter-wave Monopole antenna.
In the technical solution of the utility model, also have following technical characterictic: Bluetooth antenna is quarter-wave Pifa antenna.
In the technical solution of the utility model, also have following technical characterictic: Bluetooth antenna is quarter-wave inverted F shaped antenna.
In the technical solution of the utility model, also have following technical characterictic: the Bluetooth antenna material is a stainless steel.
Use the technical solution of the utility model, Copper Foil covers the mode of PCB signal feed, and wherein the equivalent electric circuit of antenna feeding circuit is the network that a polyphone L1 and L2 in parallel, C form, the size of L and C be with Copper Foil and mainboard the area size that contacts relevant.The size of the intersection area by debugging Copper Foil and PCB mainboard ground looks for a suitable value to reach best effect.Like this, by changing the contact impedance of Bluetooth antenna, increased the LC network.
This invention of evidence has overcome technology prejudice, has broken through the thinking limitation of general technology scheme, and the Bluetooth antenna greatly interference signal of low frequency of can forgoing in actual communication has been eliminated The noise, has reached laser propagation effect preferably.
Description of drawings
Fig. 1 is the schematic diagram that the utility model adopts general shape Copper Foil;
Fig. 2 is the schematic diagram of the another kind of shape Copper Foil of the utility model employing;
Fig. 3 is the schematic diagram of the utility model pcb board and Copper Foil correlation;
Fig. 4 the utility model Copper Foil covers the schematic diagram of signal feed on the PCB circuit board;
Fig. 5 is the schematic diagram of the utility model Bluetooth antenna shape;
Fig. 6 is the schematic diagram that the utility model Bluetooth antenna is connected with pcb board by Copper Foil;
Fig. 7 is the equivalent circuit theory figure of the utility model antenna feeding circuit.
Embodiment
Shown in Figure 2 as Fig. 1 one, the Copper Foil shape of employing is generally rectangle, and L is its length, W1 is its width, when practical application, can take erose Copper Foil as required, the area of Copper Foil need be greater than the area of PCB signal feed, in order to guarantee that Copper Foil covers the PCB signal feed fully.
The one side that Copper Foil 1 contacts with the PCB signal feed has and possesses close-burning non-conductive adhesive 2.W3 is the thickness of Copper Foil, and W2 is the thickness of non-conductive adhesive, and wherein copper thickness is about 0.5mm, and the thickness of non-conductive adhesive is 0.2mm, and the optional scope of the thickness of non-conductive adhesive is 0.2mm-0.5mm.
As Fig. 3-shown in Figure 4, have some components and parts above the mobile phone PCB printed circuit mainboard 3, and the signal feed 301 that is connected with Bluetooth antenna, cover signal feed on the mainboard with a Copper Foil 1, because the one side that contacts with the PCB signal feed of Copper Foil has non-conductive adhesive 2, can Copper Foil 1 stick on firmly pcb board signal feed 301 above.
The area of Copper Foil 1 is greater than the area of pcb board signal feed 301, and the mainboard around will being attached to greater than the Copper Foil part of signal feed 301 pad locations on pcb board on the ground.
Shown in Figure 7 as Fig. 5 one, Bluetooth antenna can adopt the antenna of quarter-wave MonoPole form, Pifa form or the form of falling F, here select the Bluetooth antenna 4 of a MonoPole form for use, the fabric swatch of 4 pairs of PCB circuit boards of this Bluetooth antenna does not have too many requirement, signal feed can be placed on any one location point on the PCB circuit board, and the requirement too many to the appearance structure of mobile phone products, Bluetooth antenna 4 is as long as be fixed up in a smooth place of casing inner wall.
Bluetooth antenna 4 is connected with the pcb board signal feed 301 of mobile phone by a Copper Foil 1, and the equivalent electric circuit of this antenna feeding circuit is the network that a polyphone L1 and L2 in parallel, C form.Wherein the size of L and C be with Copper Foil and mainboard the area size that contacts relevant.In a concrete application apparatus, the size of the intersection area by debugging Copper Foil and mainboard ground looks for a suitable size to reach best effect.Like this, by having changed the contact impedance of Bluetooth antenna, increased the LC network.The evidence interference signal of low frequency greatly of can having forgone like this, bluetooth equipment has been eliminated The noise in communication.
The utility model is mainly used in the end product of pursuing miniaturization, can use FPC line or stainless steel, designs a kind of small and exquisite and be convenient to be installed in Bluetooth antenna on the product casing inwall according to the shape and structure of product casing.And solve this antenna is subject to external interference in little space problem.
This invention has overcome technology prejudice, has broken through the thinking limitation of general technology scheme, and the influence of interference signal to the Bluetooth antenna communication eliminated in the special processing of adopting Copper Foil to cover the PCB signal feed.And the use of Copper Foil do not take special separate space, as long as change the effect that debugging that the contact area of Copper Foil just can carry out shield effectiveness reaches a requirement.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment has done, still belongs to the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (8)
1. the mobile communication terminal that has Bluetooth antenna, comprise casing and PCB circuit board, the Copper Foil of top covering that it is characterized in that the PCB signal feed, Copper Foil contacts with having more the other parts that cover signal feed and on every side mainboard, Bluetooth antenna is fixed on the hand set machine shell inwall, and Bluetooth antenna feedback point is connected with the PCB signal feed by described Copper Foil.
2. the mobile communication terminal with Bluetooth antenna according to claim 1, the thickness that it is characterized in that Copper Foil is 0.5mm, the area of Copper Foil is greater than the area of PCB signal feed.
3. the mobile communication terminal with Bluetooth antenna according to claim 1 is characterized in that one side that Copper Foil contacts with the PCB signal feed has and possesses close-burning non-conductive adhesive.
4. the mobile communication terminal with Bluetooth antenna according to claim 3, the thickness that it is characterized in that described non-conductive adhesive is 0.2-0.5mm.
5. the mobile communication terminal with Bluetooth antenna according to claim 1 is characterized in that described Bluetooth antenna is quarter-wave Monopole antenna.
6. the mobile communication terminal with Bluetooth antenna according to claim 1 is characterized in that described Bluetooth antenna is quarter-wave Pifa antenna.
7. the mobile communication terminal with Bluetooth antenna according to claim 1 is characterized in that described Bluetooth antenna is quarter-wave inverted F shaped antenna.
8. according to claim 1,5,6 or 7 described mobile communication terminals, it is characterized in that described Bluetooth antenna material is a stainless steel with Bluetooth antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200243954U CN201118873Y (en) | 2007-07-06 | 2007-07-06 | Mobile communication terminal with Bluetooth antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200243954U CN201118873Y (en) | 2007-07-06 | 2007-07-06 | Mobile communication terminal with Bluetooth antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118873Y true CN201118873Y (en) | 2008-09-17 |
Family
ID=39993474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200243954U Expired - Fee Related CN201118873Y (en) | 2007-07-06 | 2007-07-06 | Mobile communication terminal with Bluetooth antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118873Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101179152B (en) * | 2007-07-06 | 2012-09-12 | 青岛海信移动通信技术股份有限公司 | Mobile communication terminal with bluetooth antenna |
| CN101674346B (en) * | 2009-09-24 | 2012-09-26 | 中兴通讯股份有限公司 | Device and method for optimizing CMMB test socket and external antenna |
-
2007
- 2007-07-06 CN CNU2007200243954U patent/CN201118873Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101179152B (en) * | 2007-07-06 | 2012-09-12 | 青岛海信移动通信技术股份有限公司 | Mobile communication terminal with bluetooth antenna |
| CN101674346B (en) * | 2009-09-24 | 2012-09-26 | 中兴通讯股份有限公司 | Device and method for optimizing CMMB test socket and external antenna |
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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: 20080917 Termination date: 20110706 |