CN212874741U - Chip carrying Bluetooth antenna and Bluetooth device - Google Patents
Chip carrying Bluetooth antenna and Bluetooth device Download PDFInfo
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- CN212874741U CN212874741U CN202021869277.5U CN202021869277U CN212874741U CN 212874741 U CN212874741 U CN 212874741U CN 202021869277 U CN202021869277 U CN 202021869277U CN 212874741 U CN212874741 U CN 212874741U
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- bluetooth antenna
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Abstract
The utility model discloses a chip carrying a Bluetooth antenna and Bluetooth equipment, wherein, the chip carrying the Bluetooth antenna comprises a circuit board, a clearance area is arranged on the circuit board, a Bluetooth antenna is arranged in the clearance area, the Bluetooth antenna comprises a first metal wire arranged at the top layer of the circuit board and a second metal wire arranged at the bottom layer of the circuit board, the first metal wire and the second metal wire are electrically connected through a feed point, and the projections of the first metal wire and the second metal wire are not overlapped, by designing the double-antenna non-coplanar structure on the carrier plate and the projection areas of the two are not overlapped with each other, the clearance design is ensured below the Bluetooth antenna, so that the radiation performance of the first metal routing and the second metal routing are not affected by each other, and then guarantee that antenna radiation efficiency is higher, and signal transmission stability is higher and communication distance is farther.
Description
Technical Field
The utility model relates to a mobile communication technology field, in particular to carry on chip and bluetooth equipment of bluetooth antenna.
Background
Most of the existing Bluetooth earphones use ceramic antennas, the cost is relatively high, and other Bluetooth earphone antennas adopt hardware stamping metal sheet structures, so that the cost is reduced compared with that of a common ceramic antenna, but the antenna is high in assembly difficulty and easy to deform during batch production, and the Bluetooth communication distance is short.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, the utility model aims to provide a carry on chip and bluetooth equipment of bluetooth antenna, through designing the different face structure of two antennas on the support plate, can ensure that antenna radiation efficiency is higher, and signal transmission stability is higher and communication distance is farther.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a carry on chip of bluetooth antenna, includes the circuit board, be provided with the headroom region on the circuit board, be provided with the bluetooth antenna in the headroom region, the bluetooth antenna is in including setting up the first metal on circuit board top layer is walked line and is set up the second metal of circuit board bottom is walked line, first metal walk the line with the second metal is walked line and is passed through feed point electric connection, just first metal walk the line with the projection that the second metal was walked line is mutually not coincide.
In the chip carrying the Bluetooth antenna, the first metal wires are transversely arranged on the top layer of the circuit board in a bow shape; the second metal wires are transversely arranged on the bottom layer of the circuit board in a bow shape.
Carry on bluetooth antenna's chip in, clearance regional first side with one side coincidence of circuit board, clearance regional second side with the another side interval first default distance of circuit board, just first metal walk the line with clearance regional second side interval second default distance, second metal walk the line with clearance regional second side interval third default distance.
In the chip carrying the Bluetooth antenna, a plurality of metal through holes are arranged at the edge of the clearance area at equal intervals.
In the chip carrying the Bluetooth antenna, a matching network is further arranged on the circuit board.
In the chip carrying the Bluetooth antenna, one end of the circuit board is provided with a charging contact bonding pad.
In the chip carrying the Bluetooth antenna, the second preset distance and the third preset distance are both larger than 2 mm.
In the chip carrying the Bluetooth antenna, the thickness of the circuit board is 0.3mm-1 mm.
A bluetooth device comprising a chip carrying a bluetooth antenna as claimed in any one of the above.
Compared with the prior art, the utility model provides a chip and bluetooth equipment of carrying on bluetooth antenna, wherein, the chip of carrying on bluetooth antenna includes the circuit board, be provided with the headroom region on the circuit board, be provided with bluetooth antenna in the headroom region, bluetooth antenna includes the first metal wiring of setting in the circuit board top layer and sets up the second metal wiring in the circuit board bottom, first metal wiring with the second metal wiring passes through the feed point electric connection, and the projection of first metal wiring with the projection of second metal wiring is mutually not coincide, through designing two antenna abnormal surface structures on the support plate, and the projection region of both is mutually not coincident, guarantees that bluetooth antenna below is headroom design for the radiation performance of first metal wiring and second metal wiring does not influence each other, and then guarantees that antenna radiation efficiency is higher, the signal transmission stability is higher and the communication distance is longer.
Drawings
Fig. 1 is a schematic structural diagram of a chip carrying a bluetooth antenna provided by the present invention;
fig. 2 is a schematic diagram of a first metal trace in a chip carrying a bluetooth antenna provided by the present invention;
fig. 3 is the utility model provides a second metal walks the sketch map of line in the chip of carrying on bluetooth antenna.
Detailed Description
The utility model provides a carry on chip and bluetooth equipment of bluetooth antenna, through the different face structure of two antennas of design on the support plate, can ensure that antenna radiation efficiency is higher, and signal transmission stability is higher and communication distance is farther.
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, the chip for carrying bluetooth antenna provided by the present invention includes a circuit board 1, a clearance area 2 is disposed on the circuit board 1, a non-clearance area 3 is disposed outside the clearance area 2, a bluetooth antenna is disposed in the clearance area 2, the bluetooth antenna includes a first metal trace 10 disposed on a top layer of the circuit board 1 and a second metal trace 20 disposed on a bottom layer of the circuit board 1, in this embodiment, the first metal trace 10 is a main bluetooth antenna, the second metal trace is a 20-time bluetooth antenna, the first metal trace 10 and the second metal trace 20 are electrically connected through a feeding point 30, so as to realize a dual-antenna combining, and projections of the first metal trace 10 and the second metal trace 20 are not overlapped with each other, so that the main bluetooth antenna and the secondary bluetooth antenna are respectively disposed on the top layer and the bottom layer of the circuit board 1, and the projection areas of the main Bluetooth antenna and the secondary Bluetooth antenna are not overlapped, the lower part of the Bluetooth antenna is guaranteed to be designed to be clearance, so that the radiation performance of the main Bluetooth antenna and the radiation performance of the secondary Bluetooth antenna are not affected, the radiation efficiency of the antenna is further guaranteed to be higher, the signal transmission stability is higher, and the communication distance is farther.
Furthermore, in the embodiment, the circuit board 1 is used as an onboard component carrier, and an onboard antenna model is adopted for optimization design, so that research personnel of a terminal equipment manufacturer have stronger active optimization debugging capability for a system level of an antenna part, rather than relying on an outsourcing antenna manufacturer, and the improvement of the continuous performance of a product is effectively guaranteed; and because the circuit board is too thin and the patch is difficult to implement or the reliability cannot be guaranteed, too thick can cause the structure size to be larger, and the actual requirement cannot be met, and the thickness of the circuit board 1 in the embodiment is 0.3mm-1 mm.
Further, referring to fig. 2 and fig. 3, the first metal traces 10 are transversely arranged on the top layer of the circuit board 1 in a "bow" shape; second metal is walked line 20 and is "bow" font and transversely arranges the bottom of circuit board 1 sets up the bluetooth antenna at clearance region 2, for make the projection of main bluetooth antenna and inferior bluetooth antenna not coincide in the space of limit, transversely arranges main bluetooth antenna and inferior bluetooth antenna equally, and walks the line with two ways metal and design into "bow" font, can save the shared space of bluetooth antenna, reduce cost.
Further, the first side of clearance area 2 coincides with one side of circuit board 1, the second side of clearance area 2 and the other side of circuit board 1 are separated by a first preset distance S1, and the first metal trace 10 and the second side of clearance area 2 are separated by a second preset distance S2, the second metal trace 20 and the second side of clearance area are separated by a third preset distance S3, wherein the second preset distance S2 and the third preset distance S3 are both distances closest to the bluetooth antenna of "bow" shape from the second side of clearance area 2, and are non-clearance area 3 outside clearance area 2, and the second preset distance S2 and the third preset distance S3 can be regarded as the safety distance between the bluetooth antenna and non-clearance area 2, in this embodiment, the second preset distance S2 and the third preset distance S3 are both greater than 2mm, and the safety distance should be greater than 2mm, the Bluetooth device can receive and transmit signals with high stability under the requirement of small volume.
Further, the one end of circuit board 1 is provided with the contact pad 4 that charges, wherein, headroom region 2 sets up the one end of circuit board 1, the one end that is close to headroom region 2 sets up the contact pad 4 that charges to be convenient for bluetooth equipment provides the tie point of charging.
Further, the border of clearance area 2 is provided with a plurality of metal via holes 40 equidistantly, because of setting up the one end at circuit board 1 through clearance area, and be close to this end and be provided with the contact pad 4 that charges, and the first side of clearance area 2 is coincided with one side of circuit board 1, it has two sides to be equivalent to clearance area 2 and the contact of non-clearance area 3, this embodiment has set up a plurality of metal via holes 40 equidistantly at the non-clearance area 3 on these two side borders, also be that a plurality of metal via holes 40 have been laid in non-clearance area 3 outside the safe distance, can realize good ground connection, and restrain the interference of support plate circuit wiring radiation interference signal to bluetooth transceiver antenna.
Further, the circuit board 1 is further provided with a matching network 5, specifically, the non-clearance area 3 of the circuit board 1 is provided with the matching network 5, and the matching network 5 is used for fine tuning of radio frequency indexes of the antenna, so that the antenna can be guaranteed to achieve optimal radiation efficiency.
The utility model also provides a bluetooth equipment, bluetooth equipment includes as above the chip of carrying on bluetooth antenna, because the above has carried out detailed description to this chip of carrying on bluetooth antenna, no longer give unnecessary details here.
In summary, the chip with Bluetooth antenna and the Bluetooth device provided by the utility model, wherein, the chip with Bluetooth antenna comprises a circuit board, a clearance area is arranged on the circuit board, a Bluetooth antenna is arranged in the clearance area, the Bluetooth antenna comprises a first metal wire arranged at the top layer of the circuit board and a second metal wire arranged at the bottom layer of the circuit board, the first metal wire and the second metal wire are electrically connected through a feed point, and the projections of the first metal wire and the second metal wire are not overlapped, by designing the double-antenna non-coplanar structure on the carrier plate and the projection areas of the two are not overlapped with each other, the clearance design is ensured below the Bluetooth antenna, so that the radiation performance of the first metal routing and the second metal routing are not affected by each other, and then guarantee that antenna radiation efficiency is higher, and signal transmission stability is higher and communication distance is farther.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (9)
1. The utility model provides a carry on chip of bluetooth antenna, its characterized in that, includes the circuit board, be provided with the headroom region on the circuit board, be provided with the bluetooth antenna in the headroom region, the bluetooth antenna is in including setting up the first metal on circuit board top layer is walked line and is set up the second metal of circuit board bottom is walked line, first metal walk the line with the second metal is walked line and is passed through feed point electric connection, just first metal walk the line with the projection that the second metal was walked line is mutually not coincide.
2. The chip carrying the Bluetooth antenna according to claim 1, wherein the first metal traces are transversely arranged on a top layer of the circuit board in a bow shape; the second metal wires are transversely arranged on the bottom layer of the circuit board in a bow shape.
3. The bluetooth antenna-equipped chip according to claim 2, wherein the first side of the clearance area coincides with one side of the circuit board, the second side of the clearance area is spaced from the other side of the circuit board by a first predetermined distance, the first metal trace is spaced from the second side of the clearance area by a second predetermined distance, and the second metal trace is spaced from the second side of the clearance area by a third predetermined distance.
4. The chip carrying Bluetooth antenna of claim 1, wherein a plurality of metal vias are disposed at equal intervals along the edge of the clearance area.
5. The chip carrying the Bluetooth antenna according to claim 1, wherein a matching network is further disposed on the circuit board.
6. The chip carrying the Bluetooth antenna according to claim 1, wherein one end of the circuit board is provided with a charging contact pad.
7. The Bluetooth antenna-equipped chip according to claim 3, wherein the second predetermined distance and the third predetermined distance are both greater than 2 mm.
8. The chip with the Bluetooth antenna according to claim 1, wherein the thickness of the circuit board is 0.3mm to 1 mm.
9. A bluetooth device, characterized in that it comprises a chip carrying a bluetooth antenna according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869277.5U CN212874741U (en) | 2020-08-31 | 2020-08-31 | Chip carrying Bluetooth antenna and Bluetooth device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869277.5U CN212874741U (en) | 2020-08-31 | 2020-08-31 | Chip carrying Bluetooth antenna and Bluetooth device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212874741U true CN212874741U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021869277.5U Active CN212874741U (en) | 2020-08-31 | 2020-08-31 | Chip carrying Bluetooth antenna and Bluetooth device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212874741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114040326A (en) * | 2021-11-10 | 2022-02-11 | 深圳市华创恒达科技有限公司 | Bluetooth low energy consumption device connection method capable of distance measurement reminding |
-
2020
- 2020-08-31 CN CN202021869277.5U patent/CN212874741U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114040326A (en) * | 2021-11-10 | 2022-02-11 | 深圳市华创恒达科技有限公司 | Bluetooth low energy consumption device connection method capable of distance measurement reminding |
| CN114040326B (en) * | 2021-11-10 | 2022-05-17 | 深圳市华创恒达科技有限公司 | Bluetooth low energy consumption device connection method capable of distance measurement reminding |
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