CN217983695U - Bluetooth antenna for Bluetooth beacon - Google Patents
Bluetooth antenna for Bluetooth beacon Download PDFInfo
- Publication number
- CN217983695U CN217983695U CN202221490972.XU CN202221490972U CN217983695U CN 217983695 U CN217983695 U CN 217983695U CN 202221490972 U CN202221490972 U CN 202221490972U CN 217983695 U CN217983695 U CN 217983695U
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- bluetooth
- antenna
- circuit board
- bluetooth beacon
- bluetooth antenna
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Abstract
The utility model discloses a bluetooth antenna for bluetooth beacon, this bluetooth antenna for bluetooth beacon are microstrip antenna structure, including bluetooth chip and bluetooth antenna dielectric plate, bluetooth antenna dielectric plate and bluetooth chip all establish on the bluetooth beacon circuit board, and the bluetooth antenna dielectric plate passes through half hole of bluetooth beacon circuit board ground connection and ground connection fixed pad and antenna feed pad and the welding of bluetooth beacon circuit board. This a bluetooth antenna for bluetooth beacon has improved bluetooth antenna's structure and the connected mode of bluetooth antenna and bluetooth beacon circuit board, adopts microstrip antenna structure improvement antenna radiation performance that can be fine for the back that the product that uses this bluetooth antenna still can be installed is in metal, wall body environment, and does not influence antenna radiation performance very little. Bluetooth antenna dielectric plate and bluetooth beacon circuit board all use conventional thickness double-deck board, and adopt half hole connection, multilayer above can be fine solution, super thick, blind hole, radio frequency line, the inconvenient scheduling problem of equipment.
Description
Technical Field
The utility model relates to a bluetooth beacon technical field, concretely relates to bluetooth antenna for bluetooth beacon.
Background
The satellite navigation system can carry out accurate positioning in outdoor open environment, but basically loses positioning capability in indoor environment shielded by buildings. People are active indoors for about 80% of the time, and therefore, an indoor positioning and navigation service has a wide demand. In indoor location-related services, common main positioning technologies include Wi-Fi positioning, bluetooth positioning, infrared positioning, ultra-wideband positioning, ultrasonic positioning, LED positioning, zig Bee positioning, radio frequency identification positioning, and the like. With the popularization of bluetooth technology, most mobile terminal devices currently have the communication function, so as to realize data transmission. The most important advantage of positioning by using the Bluetooth signal technology is that the user has high applicability and good universality.
Bluetooth is a wireless technology standard that enables short-range data exchange (using the 2.4-2.485GHz ISM band UHF radio waves) between fixed equipment, mobile equipment, and building personal area networks. A bluetooth positioning beacon is a device that achieves accurate positioning through bluetooth low energy (bluetooth) technology. When a Beacon signal transmitting base station is installed at a certain indoor position, the base station creates a signal area.
Traditional bluetooth location beacon product all adopts board to carry printing monopole antenna structure, and this structure is not only external installation environment relatively sensitive, and antenna radiation is also not omnidirectional. Although the microstrip antenna structure can well improve the radiation performance of the antenna, the back surface of the product which can be installed is in a metal and wall environment, and the influence on the radiation performance of the antenna is little. However, the microstrip antenna structure usually has a certain requirement on the thickness of the antenna medium, and if the circuit part is directly arranged on the back of the antenna, a plurality of layers of super-thick plates (larger than 2 mm) and blind hole processes are needed, so that the cost of the circuit board plate is increased, the processing cost of the circuit board is also increased, or the antenna plate and the circuit board are connected through a radio frequency wire, so that the cost of the radio frequency wire is increased, two plates are fixed, and the assembly cost is increased.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a bluetooth antenna for bluetooth beacon, which can improve the radiation performance of the antenna by adopting a microstrip antenna structure, and the back surface of the product which can be installed is in the environment of metal and wall body, and has little influence on the radiation performance of the antenna; in the technical scheme, the Bluetooth antenna dielectric plate and the Bluetooth beacon circuit board both use conventional-thickness double-layer plates and adopt half-hole connection, so that the problems of inconvenience in assembly, multilayer, super-thick, blind holes, radio frequency lines and the like in the prior art can be well solved.
In order to solve the technical problem, the utility model discloses a technical scheme be: this a bluetooth antenna for bluetooth beacon is microstrip antenna structure, including bluetooth chip and bluetooth antenna dielectric slab, bluetooth antenna dielectric slab with bluetooth chip all establishes on the bluetooth beacon circuit board, just bluetooth antenna dielectric slab passes through bluetooth beacon circuit board ground connection half-hole and ground connection anchor pad and antenna feed pad with bluetooth beacon circuit board looks bonding. By adopting the technical scheme, the Bluetooth antenna for the Bluetooth beacon improves the structure of the Bluetooth antenna and the connection mode of the Bluetooth antenna and the Bluetooth beacon circuit board, and the antenna radiation performance can be well improved by adopting the microstrip antenna structure, so that the back surface of a product using the Bluetooth antenna which can be installed is in the environment of metal and a wall body, and the influence on the antenna radiation performance is small. The bluetooth antenna dielectric plate and the bluetooth beacon circuit board both use conventional thickness double-layer plates, and adopt half-hole connection, multilayer, super-thick, blind hole, radio frequency line, the inconvenient scheduling problem of equipment above can be fine solution.
As the utility model discloses an it is preferable technical scheme, this a bluetooth antenna for bluetooth beacon still includes bluetooth antenna radiation piece, bluetooth antenna radiation piece printing is in on the bluetooth antenna dielectric plate.
As the utility model discloses an it is preferable technical scheme, this a bluetooth antenna for bluetooth beacon still includes bluetooth antenna metal floor, bluetooth antenna metal floor printing is in on the bluetooth antenna dielectric plate. The Bluetooth antenna radiation piece can be square, rectangular, circular and the like. So the back of bluetooth antenna can hug closely the metal for metal floor and use, and antenna panel and bluetooth beacon circuit board use half-hole connection, and antenna panel and bluetooth beacon circuit board all can adopt the double-deck board of conventional thickness like this, have avoided multilayer, super thick plate, blind hole, radio frequency feeder to use, and very big degree reduces circuit board processing cost and circuit board panel cost.
As the utility model discloses an preferred technical scheme, ground connection anchor pad is established on the bluetooth antenna metal floor, antenna feed pad pass through the antenna feed via hole with the bluetooth antenna radiation piece is connected, just leave circular gap between antenna feed via hole and the bluetooth antenna metal floor.
As a preferred technical solution of the present invention, the bluetooth chip is welded on the bluetooth beacon circuit board, and the bluetooth beacon circuit board ground half-hole and the bluetooth beacon circuit board feed half-hole are both half-holes opened at the edge of the bluetooth beacon circuit board; the Bluetooth beacon circuit board is welded with the grounding fixed welding pad in a grounding half hole, and the Bluetooth beacon circuit board is welded with the antenna feeding welding pad in a feeding half hole.
As the utility model discloses an optimized technical scheme, bluetooth antenna and bluetooth beacon circuit board back to back set up, bluetooth beacon circuit board and battery are all established bluetooth antenna's the back. With the bluetooth beacon board on top and the battery on the bottom.
As the preferred technical scheme of the utility model, bluetooth beacon circuit board with bluetooth antenna dielectric slab is the double-deck board.
As the utility model discloses an optimal technical scheme, the bluetooth antenna dielectric plate is the double-deck FR4 panel of 1.6mm, and bluetooth beacon circuit board is the double-deck FR4 panel of 0.8 mm.
As the preferred technical scheme of the utility model, bluetooth antenna adopts linear polarization or circular polarization, bluetooth antenna's working frequency is 2.4GHz-2.48GHz. The bluetooth antenna may be linearly polarized, or may adopt a circular polarization realized by a corner cut mode, or a circular polarization realized by other modes.
As the preferred technical scheme of the utility model, bluetooth antenna radiation piece is square or rectangle or circular.
Compared with the prior art, the utility model discloses a beneficial effect that a bluetooth antenna for bluetooth beacon has is: this bluetooth antenna adopts microstrip antenna structure, microstrip antenna radiation pattern compares traditional monopole structure antenna radiation pattern radiation performance and has very big improvement, and the gain is high, so the product can hug closely the metal and use for the metal floor at the antenna back, bluetooth antenna dielectric plate and bluetooth beacon circuit board use half-hole's connected mode, bluetooth antenna dielectric plate and bluetooth beacon circuit board all can adopt the double-deck board of conventional thickness simultaneously, the multilayer has been avoided, the super-thick plate, the blind hole, the use of radio frequency feeder, very big degree reduces circuit board processing cost and circuit board panel cost.
Drawings
FIG. 1 is a block diagram of a Bluetooth antenna for a Bluetooth beacon of an embodiment;
FIG. 2 is a top view of a Bluetooth antenna for a Bluetooth beacon of an embodiment;
FIG. 3 is a side view of a Bluetooth antenna for a Bluetooth beacon of an embodiment;
FIG. 4 is a diagram of a Bluetooth beacon circuit board applied to a Bluetooth beacon in the Bluetooth antenna for the Bluetooth beacon according to the embodiment;
wherein: 1-a Bluetooth antenna dielectric plate; 2-a bluetooth antenna radiating patch; 3-a bluetooth antenna metal floor; 4-bluetooth beacon circuit board; 5-antenna feed pad; 6-a ground anchor pad; 7-a Bluetooth chip; 8-fixing the mounting hole; 9-antenna feed through hole and 10-Bluetooth beacon circuit board grounding half hole; 11-a bluetooth beacon circuit board feed half-hole; 12-circular gap; 13-a battery.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the attached drawings and the embodiment, which is only used to explain the present invention, and is not limited to the protection scope of the present invention.
The embodiment is as follows: as shown in fig. 1 to 4, the bluetooth antenna for bluetooth beacon is a microstrip antenna structure, and includes a bluetooth chip 7 and a bluetooth antenna dielectric slab 1, where the bluetooth antenna dielectric slab 1 and the bluetooth chip 7 are both disposed on a bluetooth beacon circuit board 4, and the bluetooth antenna dielectric slab 1 is welded to a ground fixed pad 6 and an antenna feed pad 5 through a bluetooth beacon circuit board ground half-hole 10 and the bluetooth beacon circuit board 4; the Bluetooth antenna for the Bluetooth beacon also comprises a Bluetooth antenna radiation piece 2, wherein the Bluetooth antenna radiation piece 2 is printed on the Bluetooth antenna dielectric plate 1; the Bluetooth antenna for the Bluetooth beacon also comprises a Bluetooth antenna metal floor 3, wherein the Bluetooth antenna metal floor 3 is printed on the Bluetooth antenna dielectric plate 1; bluetooth antenna radiation piece 2 is printed in the front of Bluetooth antenna dielectric plate 1, and Bluetooth antenna metal floor 3 is printed in the reverse of Bluetooth antenna dielectric plate 1, and Bluetooth antenna radiation piece 2 can be square, rectangle, circular etc. shape. In the embodiment, the radiating sheet 2 of the bluetooth antenna is square; the grounding fixed pad 6 is arranged on the Bluetooth antenna metal floor 3, the antenna feed pad 7 is connected with the Bluetooth antenna radiation piece 2 through a tinned antenna feed through hole 9, and a circular gap 12 is reserved between the antenna feed through hole 9 and the Bluetooth antenna metal floor 3; the Bluetooth beacon circuit board 4 and the Bluetooth antenna are arranged back to back, and the battery 13 and the Bluetooth beacon circuit board 4 are arranged on the back of the Bluetooth antenna; with the bluetooth beacon board 4 on top and the battery 13 on the bottom; the Bluetooth chip 7 is welded on the Bluetooth beacon circuit board 4, and the Bluetooth beacon circuit board grounding half-hole 10 and the Bluetooth beacon circuit board feeding half-hole 11 are both half-holes formed on the board edge of the Bluetooth beacon circuit board 4; the Bluetooth beacon circuit board grounding half hole 10 is welded with the grounding fixed welding plate 6, and the Bluetooth beacon circuit board feeding half hole 11 is welded with the antenna feeding welding plate 5; the Bluetooth antenna dielectric plate 1 is fixed on an upper cover 14 through 4 fixing mounting holes 8, and the upper cover 14 is fixedly connected with a lower cover 15 through eight screws 16; the Bluetooth beacon circuit board 4 and the Bluetooth antenna dielectric plate 1 are both double-layer plates, the Bluetooth antenna dielectric plate 1 is a 1.6mm double-layer FR4 plate, and the Bluetooth beacon circuit board 4 is a 0.8mm double-layer FR4 plate; the Bluetooth antenna adopts linear polarization or circular polarization, and the working frequency band of the Bluetooth antenna is 2.4GHz-2.48GHz; the Bluetooth antenna is linearly polarized, or can adopt a corner cutting mode to realize circular polarization, or can adopt other modes to realize circular polarization; the bluetooth beacon circuit board 4 is provided with 4 fixed mounting holes 8, and the bluetooth beacon circuit board 4 can be fixed in the shell of bluetooth beacon product when 4 fixed mounting holes are used.
For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited to the above-mentioned embodiments, and various insubstantial modifications can be made without modification to the method concept and technical solution of the present invention, and the present invention is also within the scope of the present invention.
Claims (10)
1. The utility model provides a bluetooth antenna for bluetooth beacon, its characterized in that, this bluetooth antenna for bluetooth beacon is microstrip antenna structure, including bluetooth chip and bluetooth antenna dielectric slab, the bluetooth antenna dielectric slab with bluetooth chip all establishes on the bluetooth beacon circuit board, just the bluetooth antenna dielectric slab pass through bluetooth beacon circuit board ground connection half-hole and ground connection pad and antenna feed pad with bluetooth beacon circuit board welds.
2. The bluetooth antenna for the bluetooth beacon according to claim 1, further comprising a bluetooth antenna radiating patch printed on the bluetooth antenna dielectric plate.
3. The bluetooth antenna for the bluetooth beacon according to claim 2, further comprising a bluetooth antenna metal floor, wherein the bluetooth antenna metal floor is printed on the bluetooth antenna dielectric plate.
4. The bluetooth antenna for the bluetooth beacon according to claim 3, wherein the ground anchor pad is disposed on the bluetooth antenna metal floor, the antenna feed pad is connected to the bluetooth antenna radiation patch through an antenna feed via hole, and a circular gap is left between the antenna feed via hole and the bluetooth antenna metal floor.
5. The bluetooth antenna for the bluetooth beacon according to claim 4, wherein the bluetooth chip is soldered on the bluetooth beacon circuit board, and the bluetooth beacon circuit board ground half-hole and the bluetooth beacon circuit board feed half-hole are both half-holes opened on the board edge of the bluetooth beacon circuit board; the Bluetooth beacon circuit board is welded with the grounding fixed welding pad in a grounding half hole, and the Bluetooth beacon circuit board is welded with the antenna feeding welding pad in a feeding half hole.
6. The bluetooth antenna for a bluetooth beacon of claim 4, wherein the bluetooth antenna is back-to-back with a bluetooth beacon circuit board, and the bluetooth beacon circuit board and the battery are both disposed on a back side of the bluetooth antenna.
7. The bluetooth antenna for the bluetooth beacon according to claim 4, wherein the bluetooth beacon circuit board and the bluetooth antenna dielectric plate are both double-layer plates.
8. The bluetooth antenna for the bluetooth beacon according to claim 7, wherein the bluetooth antenna dielectric plate is a 1.6mm double-layer FR4 plate material, and the bluetooth beacon circuit board is a 0.8mm double-layer FR4 plate material.
9. The bluetooth antenna for a bluetooth beacon according to claim 4, wherein the bluetooth antenna is linearly or circularly polarized, and the bluetooth antenna operates at a frequency range of 2.4GHz-2.48GHz.
10. The bluetooth antenna for a bluetooth beacon according to claim 4, wherein the bluetooth antenna radiating patch is square or rectangular or circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221490972.XU CN217983695U (en) | 2022-06-14 | 2022-06-14 | Bluetooth antenna for Bluetooth beacon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221490972.XU CN217983695U (en) | 2022-06-14 | 2022-06-14 | Bluetooth antenna for Bluetooth beacon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217983695U true CN217983695U (en) | 2022-12-06 |
Family
ID=84269627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221490972.XU Active CN217983695U (en) | 2022-06-14 | 2022-06-14 | Bluetooth antenna for Bluetooth beacon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217983695U (en) |
-
2022
- 2022-06-14 CN CN202221490972.XU patent/CN217983695U/en active Active
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