CN103715500A - Dipole antenna for bluetooth and wireless fidelity communication module - Google Patents
Dipole antenna for bluetooth and wireless fidelity communication module Download PDFInfo
- Publication number
- CN103715500A CN103715500A CN201310714687.0A CN201310714687A CN103715500A CN 103715500 A CN103715500 A CN 103715500A CN 201310714687 A CN201310714687 A CN 201310714687A CN 103715500 A CN103715500 A CN 103715500A
- Authority
- CN
- China
- Prior art keywords
- conductive foil
- foil film
- bluetooth
- communication module
- wireless fidelity
- 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.)
- Pending
Links
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
A dipole antenna for bluetooth and a wireless fidelity communication module comprises a printed circuit board. The printed circuit board comprises an insulation substrate. A first conductive foil membrane is laid on the upper side of the insulation substrate and close to one edge of the insulation substrate. A grounding conductive foil membrane is laid on the upper side of the insulation substrate. The grounding conductive foil membrane has a long edge which is parallel with the long edge of the first conductive foil membrane. One end of the first conductive foil membrane is provided with a rectangular gap. The first conductive foil membrane at the two sides of the rectangular gap forms a first branch and a second branch respectively. The first branch is adjacent to the edge of the insulation substrate and is connected with a second conductive foil membrane after extending 1.5 mm. A third conductive foil membrane and a fourth conductive foil membrane are connected between the second conductive foil membrane and the grounding conductive foil membrane. The antenna of the bluetooth and the WIFI module is formed by utilizing the conductive foil membranes, so that the requirement for high reliability of vehicle-mounted components is met, the cost is substantially reduced, the debugging is easy, the application range is wider, the size of the antenna is small, and integration can be done conveniently.
Description
Technical field:
The present invention relates to electricity field, relate in particular to bluetooth and Wireless Fidelity mechanics of communication, particularly a kind of dipole antenna for bluetooth and Wireless Fidelity communication module.
Background technology:
Bluetooth and Wireless Fidelity communication module (wireless fidelity, hereinafter to be referred as WIFI) are the standard configurations of automobile mounted entertainment systems.Bluetooth and WIFI module all transmit and receive the radiofrequency signal of 2.4GHz frequency, and space transmission all needs antenna as carrier.In prior art, on-vehicle Bluetooth antenna has following several:
1. special-purpose external antenna.Prices are rather stiff for it, and BOM comprises one section of longer cable of pair of connectors and an antenna.And Che Nei also wants special this antenna of space arrangement.Antenna is very responsive to metal device, thus antenna to put requirement also very high.In view of vehicle-mounted upper bluetooth and WIFI real-time communication require high and required distance is not very high feature, it is superseded that this antenna is tending towards gradually.
2. Bluetooth antenna integrated with 3G antenna together with as external antenna.This antenna form relative cost decreases, but amplitude is very little, and key is the occasion that runs into independent bluetooth module, and this antenna is also impossible use.
3. built-in antenna is inner in product shell, but needs die sinking to go out a metalwork.This antenna reduces greatly with respect to the antenna cost of first two form, but still has the die cost of a die sinking, and this cost is also quite expensive.
Summary of the invention:
The object of the present invention is to provide a kind of dipole antenna for bluetooth and Wireless Fidelity communication module, the described this dipole antenna for bluetooth and Wireless Fidelity communication module will solve the higher technical problem of antenna cost of prior art on-vehicle Bluetooth and WIFI module.
This dipole antenna for bluetooth and Wireless Fidelity communication module of the present invention, comprise a printed circuit board (PCB), described printed circuit board (PCB) comprises insulated substrate, wherein, upside at described insulated substrate, one side of contiguous insulated substrate is laid with a first conductive foil film, the length of the first described conductive foil film is 14.5 millimeters, width is 3 millimeters, the upside of insulated substrate is laid with a ground connection conductive foil film, described ground connection conductive foil film has a long limit parallel with the long limit of the first conductive foil film, minimum spacing between ground connection conductive foil film and the first conductive foil film is 4.5 millimeters, in one end of the first conductive foil film, be provided with a rectangular indentation, the first conductive foil film of described rectangular indentation both sides forms respectively first branch and second branch, the first described branch is adjacent with the edge of insulated substrate, the first branch is communicated with a second conductive foil film after the length direction of the first conductive foil film extends 1.5 millimeters, between the second described conductive foil film and ground connection conductive foil film, be provided with one article of the 3rd conductive foil film and one article of the 4th conductive foil film, the 3rd described conductive foil film and the 4th conductive foil film parallel interval and all perpendicular to the long limit of the second conductive foil film and the long limit of ground connection conductive foil film, the two ends of the 3rd conductive foil film are communicated with the second conductive foil film and ground connection conductive foil film respectively, the two ends of the 4th conductive foil film are communicated with the second conductive foil film and ground connection conductive foil film respectively.
Further, the insulated substrate headroom of the first conductive foil film below.Only retain insulated substrate itself.
Further, the length of the 3rd conductive foil film and the 4th conductive foil film is all at least greater than 4.5 millimeters.
Further, the second branch is communicated with the pin network of bluetooth and Wireless Fidelity communication module.
Further, described Wireless Fidelity communication module meets the IEEE802.11 of IEEE standard.
The present invention and prior art are compared, and its effect is actively with obvious.The present invention directly utilizes conductive foil film to form the antenna of bluetooth and WIFI module at printed circuit board (PCB), meets the requirement of the high-reliability of vehicle-mounted components and parts, and cost reduces greatly with respect to traditional external antenna, debugging is simple simultaneously, usage range is wider, and antenna size is little, can facilitate integrated.
Accompanying drawing explanation:
Fig. 1 is the schematic diagram of the dipole antenna for bluetooth and Wireless Fidelity communication module of the present invention.
Embodiment:
Embodiment 1:
As shown in Figure 1, dipole antenna for bluetooth and Wireless Fidelity communication module of the present invention, comprise a printed circuit board (PCB), printed circuit board (PCB) comprises insulated substrate 1, wherein, upside at insulated substrate 1, one side of contiguous insulated substrate 1 is laid with a first conductive foil film 3, the length L 2 of the first conductive foil film 3 is 14.5 millimeters, width W is 3 millimeters, the upside of insulated substrate 1 is laid with a ground connection conductive foil film 2, ground connection conductive foil film 2 has a long limit parallel with the long limit of the first conductive foil film 3, minimum spacing L3 between ground connection conductive foil film 2 and the first conductive foil film 3 is 4.5 millimeters, in one end of the first conductive foil film 3, be provided with a rectangular indentation, the first conductive foil film 3 of rectangular indentation both sides forms respectively first branch and second branch, the edge of the first branch and insulated substrate 1 is adjacent, the first branch is communicated with a second conductive foil film 4 extend the length L 1 of 1.5 millimeters along the length direction of the first conductive foil film 3 after, between the second conductive foil film 4 and ground connection conductive foil film 2, be provided with one article of the 3rd conductive foil film 5 and one article of the 4th conductive foil film 6, the 3rd conductive foil film 5 and the 4th conductive foil film 6 parallel interval and all perpendicular to the long limit of the second conductive foil film 4 and the long limit of ground connection conductive foil film 2, the two ends of the 3rd conductive foil film 5 are communicated with the second conductive foil film 4 and ground connection conductive foil film 2 respectively, the two ends of the 4th conductive foil film 6 are communicated with the second conductive foil film 4 and ground connection conductive foil film 2 respectively.
Further, insulated substrate 1 headroom of the first conductive foil film 3 belows.Only retain insulated substrate 1 own.
Further, the length of the 3rd conductive foil film 5 and the 4th conductive foil film 6 is all at least greater than 4.5 millimeters.
Further, the second branch is communicated with the pin network of bluetooth and Wireless Fidelity communication module.
Further, Wireless Fidelity communication module meets the IEEE802.11 of IEEE standard.
The operation principle of the present embodiment is: the L1 extension of the first conductive foil film 3 and the first branch forms aerial radiation wall, the 4th conductive foil film 6 form feeder pillars in circuit as distributing point, the 3rd conductive foil film 5 form short circuit posts in circuit as earth point.Distributing point is connected to the pin network of module, earth point ground connection conductive foil film 2.The width of aerial radiation wall is 3mm, and the bandwidth of antenna increases to some extent like this.Antenna of the present invention mainly relies on fringing field, so antenna is placed near edges of boards on insulated substrate 1.Feeder pillar and short circuit post form two-wire line, and the impedance of its conversion antenna, is transformer action, and part capacitive reactance is transformed into induction reactance, thereby make whole antenna form resonance.After tested, the antenna impedance in the present embodiment is 50 Ω, and efficiency reaches more than 50%.
Claims (5)
1. the dipole antenna for bluetooth and Wireless Fidelity communication module, comprise a printed circuit board (PCB), described printed circuit board (PCB) comprises insulated substrate, it is characterized in that: at the upside of described insulated substrate, one side of contiguous insulated substrate is laid with a first conductive foil film, the length of the first described conductive foil film is 14.5 millimeters, width is 3 millimeters, the upside of insulated substrate is laid with a ground connection conductive foil film, described ground connection conductive foil film has a long limit parallel with the long limit of the first conductive foil film, minimum spacing between ground connection conductive foil film and the first conductive foil film is 4.5 millimeters, in one end of the first conductive foil film, be provided with a rectangular indentation, the first conductive foil film of described rectangular indentation both sides forms respectively first branch and second branch, the first described branch is adjacent with the edge of insulated substrate, the first branch is communicated with a second conductive foil film after the length direction of the first conductive foil film extends 1.5 millimeters, between the second described conductive foil film and ground connection conductive foil film, be provided with one article of the 3rd conductive foil film and one article of the 4th conductive foil film, the 3rd described conductive foil film and the 4th conductive foil film parallel interval and all perpendicular to the long limit of the second conductive foil film and the long limit of ground connection conductive foil film, the two ends of the 3rd conductive foil film are communicated with the second conductive foil film and ground connection conductive foil film respectively, the two ends of the 4th conductive foil film are communicated with the second conductive foil film and ground connection conductive foil film respectively.
2. the dipole antenna for bluetooth and Wireless Fidelity communication module as claimed in claim 1, is characterized in that: the insulated substrate headroom of the first conductive foil film below.
3. the dipole antenna for bluetooth and Wireless Fidelity communication module as claimed in claim 1, is characterized in that: the length of the 3rd conductive foil film and the 4th conductive foil film is all at least greater than 4.5 millimeters.
4. the dipole antenna for bluetooth and Wireless Fidelity communication module as claimed in claim 1, is characterized in that: the second branch is communicated with the pin network of bluetooth and Wireless Fidelity communication module.
5. the dipole antenna for bluetooth and Wireless Fidelity communication module as claimed in claim 1, is characterized in that: described Wireless Fidelity communication module meets the IEEE802.11 of IEEE standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714687.0A CN103715500A (en) | 2013-12-23 | 2013-12-23 | Dipole antenna for bluetooth and wireless fidelity communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714687.0A CN103715500A (en) | 2013-12-23 | 2013-12-23 | Dipole antenna for bluetooth and wireless fidelity communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103715500A true CN103715500A (en) | 2014-04-09 |
Family
ID=50408264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310714687.0A Pending CN103715500A (en) | 2013-12-23 | 2013-12-23 | Dipole antenna for bluetooth and wireless fidelity communication module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103715500A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008092311A (en) * | 2006-10-03 | 2008-04-17 | Furukawa Electric Co Ltd:The | Multiple frequency sharing antenna |
| CN201060933Y (en) * | 2007-04-09 | 2008-05-14 | 樊明延 | Balanced type dual-branch plane inverse F type antenna |
| CN102013566A (en) * | 2010-11-25 | 2011-04-13 | 惠州Tcl移动通信有限公司 | PCB (printed circuit board) Bluetooth antenna and mobile phone |
| JP5153738B2 (en) * | 2009-07-31 | 2013-02-27 | カシオ計算機株式会社 | Multi-frequency antenna |
-
2013
- 2013-12-23 CN CN201310714687.0A patent/CN103715500A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008092311A (en) * | 2006-10-03 | 2008-04-17 | Furukawa Electric Co Ltd:The | Multiple frequency sharing antenna |
| CN201060933Y (en) * | 2007-04-09 | 2008-05-14 | 樊明延 | Balanced type dual-branch plane inverse F type antenna |
| JP5153738B2 (en) * | 2009-07-31 | 2013-02-27 | カシオ計算機株式会社 | Multi-frequency antenna |
| CN102013566A (en) * | 2010-11-25 | 2011-04-13 | 惠州Tcl移动通信有限公司 | PCB (printed circuit board) Bluetooth antenna and mobile phone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202977704U (en) | Anti-metal-frame mobile phone antenna structure | |
| CN103178344A (en) | Multi-frequency-band rear metal cover mobile phone antenna | |
| CN105514594B (en) | Slot antenna and the wireless communication device with the slot antenna | |
| CN104752822A (en) | Antenna structure and wireless communication device with antenna structure | |
| WO2009034462A3 (en) | Symmetrical printed meander dipole antenna | |
| CN104752824A (en) | Antenna structure and wireless communication device applying antenna structure | |
| CN205081230U (en) | Antenna system and mobile terminal thereof | |
| CN104167605A (en) | Antenna structure and wireless communication apparatus using the same | |
| CN104425898A (en) | Antenna structure and wireless communication apparatus applying same | |
| CN103280623A (en) | Antenna structure | |
| CN203503773U (en) | Antenna structure and electronic device employing same | |
| CN101826652A (en) | Circuit board folded dipole with integrated balanced-to-unblanced transformer | |
| CN104752825A (en) | Antenna structure and wireless communication device with antenna structure | |
| CN106850893B (en) | Mobile terminal | |
| CN202695729U (en) | Antenna | |
| CN203260719U (en) | Multi-frequency antenna | |
| CN204720553U (en) | A kind of plane sleeve antenna with lightning protection function | |
| CN202333131U (en) | Small wide band planar antenna | |
| CN103715500A (en) | Dipole antenna for bluetooth and wireless fidelity communication module | |
| CN104979623B (en) | Collect the multifrequency antenna and wireless communication terminal of wireless telecommunications, data transfer and positioning | |
| CN103779649B (en) | Portable electron device and antenna structure thereof | |
| WO2011113389A3 (en) | Planar antenna of wireless terminal and wireless terminal | |
| CN203423256U (en) | Synchronous dual-frequency circuit board radiating antenna | |
| CN203481372U (en) | Antenna for intelligent transportation system | |
| TW200943623A (en) | A mobile communication device antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140409 |
|
| RJ01 | Rejection of invention patent application after publication |