CN212062680U - Novel onboard Bluetooth antenna - Google Patents
Novel onboard Bluetooth antenna Download PDFInfo
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- CN212062680U CN212062680U CN202020732487.3U CN202020732487U CN212062680U CN 212062680 U CN212062680 U CN 212062680U CN 202020732487 U CN202020732487 U CN 202020732487U CN 212062680 U CN212062680 U CN 212062680U
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Abstract
The utility model discloses a novel board carries bluetooth antenna, include: the antenna comprises a PCB, an antenna body arranged on one surface of the PCB and used for transmitting or receiving electromagnetic wave signals, and an antenna shielding assembly arranged on the other surface of the PCB and used for providing a clearance area for the antenna body; the antenna body comprises an antenna grounding part, an antenna feeding part and a radiation oscillator; one end of the antenna grounding part is grounded as a grounding end of the antenna body, and the other end of the antenna grounding part is electrically connected with one end of the antenna feeding part and one end of the radiation oscillator; the other end of the antenna feeding part is used as a feeding point of the antenna body. Foretell board carries bluetooth antenna, the antenna shield subassembly can shield the electromagnetic wave signal at the antenna body back, can participate in the resonance and optimize the radiation direction of antenna, through increasing the interference of other reducible environmental factors of antenna shield subassembly to the antenna body, improves antenna gain by a wide margin under the condition that the antenna body keeps small-size, can compromise small-size and high performance simultaneously.
Description
Technical Field
The utility model relates to a communication equipment technical field especially relates to a novel board carries bluetooth antenna.
Background
An antenna is a transducer that converts a guided wave on a transmission line into an electromagnetic wave propagating in free space or vice versa, and is a component used in radio equipment to transmit or receive electromagnetic wave signals. With the development of intelligent wearable equipment and intelligent communication, more and more equipment needs to use a small-sized antenna as a receiving and transmitting component of an electromagnetic wave signal, and the requirement of the antenna on a clearance area cannot be met due to the fact that the size of the antenna is too small, so that the antenna is low in gain and low in radiation intensity, and therefore the performance of the designed antenna is poor. Although the performance of the antenna can be improved obviously by properly increasing the external size of the antenna, the requirement of the device for a small-sized antenna cannot be met, that is, the requirement of the antenna for small size and high performance cannot be simultaneously met. Therefore, the antenna in the prior art method has the problem that the small size and the high performance cannot be simultaneously considered.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a novel board carries bluetooth antenna aims at solving the unable problem of compromising small-size and high performance simultaneously that the antenna in the prior art method exists.
In a first aspect, an embodiment of the present invention provides a novel board-mounted bluetooth antenna, wherein, board-mounted bluetooth antenna includes: the antenna comprises a PCB, an antenna body arranged on one surface of the PCB and used for transmitting or receiving electromagnetic wave signals, and an antenna shielding assembly arranged on the other surface of the PCB and used for providing a clearance area for the antenna body;
the antenna body comprises an antenna grounding part, an antenna feeding part and a radiation oscillator;
one end of the antenna grounding part is grounded as a grounding end of the antenna body, and the other end of the antenna grounding part is simultaneously electrically connected with one end of the antenna feeding part and one end of the radiation oscillator; the other end of the antenna feeding part is used as a feeding point of the antenna body;
the antenna shielding assembly comprises a metal adhesion layer and a capacitor; and two ends of the capacitor are respectively connected with the metal adhesion layer and the PCB copper-attached layer of the PCB.
The novel onboard Bluetooth antenna is characterized in that the orthographic projection area of the metal attachment layer covers the radiation oscillator.
The novel onboard Bluetooth antenna is characterized in that the wavelength lambda of an electromagnetic wave signal suitable for the onboard Bluetooth antenna is 120.97-125mm, and the total length of the radiating element is 1/4 of the wavelength lambda.
Novel board year bluetooth antenna, wherein, board year bluetooth antenna still including set up in PCB board both sides limit and the first of equal ground connection bordure and the second bordures, first bordure and the second bordures all with the earthing terminal is connected.
Novel board-mounted Bluetooth antenna, wherein, second bordure including set up in the antenna of radiation oscillator tip bordure and set up in PCB attaches the copper layer of copper layer one side and bordures, the antenna is bordured and is passed through insulating substrate on the PCB board with the radiation oscillator is insulating.
Novel board year bluetooth antenna, wherein, first bordure reaches second bordure is the copper bordure.
The novel onboard Bluetooth antenna is characterized in that the length of the external dimension of the antenna body is not more than 6.5mm, and the width of the antenna body is not more than 5 mm; the metal adhesion layer is a rectangular adhesion layer with the length of 4.5-5mm and the width of 3.3-4 mm.
The novel onboard Bluetooth antenna is characterized in that the thickness of the metal attachment layer is 0.017-0.035 mm.
The novel board carries bluetooth antenna, wherein, the metal adhesion coating is the copper adhesion coating.
The novel onboard Bluetooth antenna is characterized in that the thickness of each of the first wrapping edge and the second wrapping edge is 0.017-0.035mm, and the width of each of the first wrapping edge and the second wrapping edge is 0.6-1.2 mm.
The embodiment of the utility model provides a novel board carries bluetooth antenna includes: the antenna comprises a PCB, an antenna body arranged on one surface of the PCB and used for transmitting or receiving electromagnetic wave signals, and an antenna shielding assembly arranged on the other surface of the PCB and used for providing a clearance area for the antenna body; the antenna body comprises an antenna grounding part, an antenna feeding part and a radiation oscillator; one end of the antenna grounding part is grounded as a grounding end of the antenna body, and the other end of the antenna grounding part is electrically connected with one end of the antenna feeding part and one end of the radiation oscillator; the other end of the antenna feed part is used as a feed point of the antenna body; the antenna shielding assembly comprises a metal adhesion layer and a capacitor; the two ends of the capacitor are respectively connected with the metal attachment layer and the PCB copper attachment layer of the PCB. Foretell board carries bluetooth antenna, the antenna shield subassembly can shield the electromagnetic wave signal at the antenna body back, also can participate in the resonance and optimize the radiation direction of antenna, through the interference of increasing other reducible environmental factors of antenna shield subassembly to the antenna body, can keep improving antenna gain by a wide margin under the small-size condition at the antenna body, solved the unable problem of compromising small-size and high performance simultaneously that current antenna exists.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a novel onboard bluetooth antenna according to an embodiment of the present invention, which shows one side of the novel onboard bluetooth antenna;
fig. 2 is another schematic structural diagram of the novel onboard bluetooth antenna according to an embodiment of the present invention, which shows another side of the novel onboard bluetooth antenna;
fig. 3 is the embodiment of the present invention provides a local structure diagram of a novel onboard bluetooth antenna.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a novel onboard bluetooth antenna according to an embodiment of the present invention; fig. 2 is a schematic partial structure diagram of a novel onboard bluetooth antenna provided by an embodiment of the present invention; fig. 3 is the embodiment of the present invention provides a local structure diagram of a novel onboard bluetooth antenna. As shown, the novel onboard bluetooth antenna comprises: PCB board 1, locate the antenna body 2 that one side of PCB board 1 is used for launching or receiving electromagnetic wave signal and locate the another side of PCB board 1 is used for antenna body 2 provides the antenna shield subassembly 3 of headroom district, also is antenna body 2 with antenna shield subassembly 3 sets up respectively in PCB board 1 relative two sides. As shown in fig. 1, the antenna body 2 is disposed on one side of the PCB 1 for transmitting or receiving electromagnetic wave signals, and since the novel onboard bluetooth antenna is used as a bluetooth antenna, the frequency band of the electromagnetic wave signals is 2.40GHz to 2.48GHz, and the wavelength λ of the electromagnetic wave signals suitable for the onboard bluetooth antenna is 120.97-125 mm; as shown in fig. 2, the antenna shielding assembly 3 is disposed on the other side of the PCB 1 opposite to the antenna body 2, and the antenna shielding assembly 3 can shield the electromagnetic wave signal on the back side of the antenna body 2, that is, can participate in resonance and optimize the radiation direction of the antenna, so that the interference of other environmental factors to the antenna body 2 can be reduced by adding the antenna shielding assembly 3, and the antenna gain can be greatly improved while the antenna body 2 is kept small in size. In addition, the PCB board 1 includes an insulating base material 12 made of insulating materials such as silicon, a groove corresponding to the antenna body 2 can be formed on the insulating base material 12 of the PCB board 1 by etching, and the groove is filled with metal materials such as copper to realize that the antenna body 2 is arranged on the PCB board 1, and then the antenna body 2 is filled in the groove in the form of metal micro-strips; the same method can be used on the other side of the PCB 1 to provide the antenna shielding component 3 on the PCB 1.
The antenna body 2 comprises an antenna grounding part 21, an antenna feeding part 22 and a radiation oscillator 23; one end of the antenna grounding part 21 is grounded as a grounding end 25 of the antenna body 2, and the other end is electrically connected with one end of the antenna feeding part 22 and one end of the radiation oscillator 23; the other end of the antenna feeding portion 22 serves as a feeding point 24 of the antenna body 2, wherein the antenna grounding portion 21 and the antenna feeding portion 22 are both strip-shaped metal micro-strips. The antenna body 2 is mainly composed of three metal micro-strips, namely an antenna grounding part 21, an antenna feeding part 22 and a radiation oscillator 23, and the specific structure is shown in fig. 3, wherein a feeding point 24 of the antenna feeding part 22 is connected with a power supply point or a signal receiving point on the PCB board 1, and a grounding end 25 of the antenna grounding part 21 is grounded. The radiation oscillator 23 is used as a main body for receiving (or transmitting) the electromagnetic wave signal, and the radiation oscillator 23 is a metal microstrip with a serpentine meandering shape, and the total length of the metal microstrip is 1/4 of the wavelength λ capable of receiving (or transmitting) the electromagnetic wave signal.
Taking the frequency band of the electromagnetic wave signal as 2.40GHz as an example, if the wavelength λ of the electromagnetic wave signal in the frequency band is 300/2.40-125 mm, the total length of the correspondingly arranged radiation oscillator 23 is 125/4-31.25 mm.
The antenna shielding assembly 3 comprises a metal adhesion layer 31 and a capacitor 32; two ends of the capacitor 32 are respectively connected to the metal adhesion layer 31 and the PCB copper adhesion layer 11 of the PCB board 1. Specifically, the capacitor 32 is sized to be 75 pF.
In a more specific embodiment, the orthographic projection area of the metal attachment layer 31 covers the radiating element 23. Specifically, the metal adhesion layer 31 is a copper adhesion layer. The metal adhesion layer 31 can provide a clearance area for the antenna body 2, the area of the clearance area is equal to the area of the metal adhesion layer 31, the orthographic projection area of the metal adhesion layer 31 can be set to cover the radiation oscillator 23, and the radiation oscillator 23 is completely located in the clearance area, so that the interference of external environment factors is reduced to the greatest extent, and the antenna gain is further improved.
The board carries bluetooth antenna still including set up in 1 both sides limit of PCB board and the first bound limit 13 and the second of all ground connection are bordured 14, first bound limit 13 and the second is bordured 14 and all with earthing terminal 25 is connected. In order to further improve the performance of the antenna, a first wrapping edge 13 and a second wrapping edge 14 can be arranged on two side edges of the PCB 1, the first wrapping edge 13 and the second wrapping edge 14 can be matched with the appearance results of the two sides of the PCB 1, the first wrapping edge 13 and the second wrapping edge 14 are both grounded, the grounding end 25 is simultaneously connected with the first wrapping edge 13 and the second wrapping edge 14 and is grounded through the first wrapping edge 13 and the second wrapping edge 14, the first wrapping edge 13 and the second wrapping edge 14 form a grounding layer and are used as a return path of the antenna, and compared with the direct grounding of the grounding end 25, the area of the grounding layer can be greatly increased by increasing the first wrapping edge 13 and the second wrapping edge 14, the radiation direction of the antenna is further optimized, and the performance of the antenna is improved.
In a more specific embodiment, the second covering edge 14 includes an antenna covering edge 141 disposed at an end of the radiating element 23 and a copper-attached covering edge 142 disposed at one side of the PCB copper-attached layer 11, and the antenna covering edge 141 is insulated from the radiating element 23 by the insulating base material 12 on the PCB board 1. Specifically, the first wrapping edge 13 and the second wrapping edge 14 are both copper wrapping edges. In addition, the first wrapping edge 13 and the second wrapping edge 14 can be made of other alloy materials and other metal materials with conductive functions such as stainless steel.
In a more specific embodiment, the length L of the external dimension of the antenna body 21Not more than 6.5mm, width W1Not greater than 5 mm. Because the antenna with small size provided by the scheme can be minimized in size on the premise of meeting the use performance, the length L in the external size of the antenna body1Not more than 6.5mm, width W1Not greater than 5 mm. The metal adhesion layer 31 has a length L2Width of W2The rectangular adhesion layer of (1) can be set to have a length L of the rectangular adhesion layer so that the metal adhesion layer 31 is fitted to the outer size of the antenna body 2 and the antenna body 2 can be provided with a clearance area as large as possible2The width W is 4.5-5mm2The value is 3.4-4 mm. Wherein, the thickness of the metal adhesion layer 31 is 0.017-0.035 mm. Since the insulating base material 12 is provided between the metal adhesion layer 31 and the antenna main body 2, the metal adhesion layer 31 and the antenna main body 2 are insulated from each other. The metal adhesion layer 31 may be made of copper or stainless steel, or may be made of other metal or alloy material having a conductive function, and the copper adhesion layer is preferably used for the metal adhesion layer 31.
In a more specific embodiment, the thickness H of the first and second hems 13, 141Are all 0.017-0.035mm, and are all 0.6-1.2mm in width. The outer dimensions of the first covered edge 13 and the second covered edge 14 need to be adapted to the side dimensions of the PCB 1, specifically, the width of the first covered edge 13 and the width of the second covered edge 14 can be set to be 0.6-1.2mm, and the first covered edge 13 and the second covered edge 14 need to ensure the structural strength and the thickness H of the first covered edge 13 and the second covered edge 141Can be set to be 0.017-0.035 mm.
Foretell novel board carries bluetooth antenna owing to have the characteristic of small-size and high performance, and the reliability is higher, the cost of manufacture is lower, but wide application in equipment such as sports type neck area bluetooth headset, sports type noodless bluetooth headset, bluetooth speaker, wireless intelligent lamp, wireless smart jack, wireless intelligent switch, wireless intelligent (window) curtain.
The embodiment of the utility model provides a novel board carries bluetooth antenna includes: the antenna comprises a PCB, an antenna body arranged on one surface of the PCB and used for transmitting or receiving electromagnetic wave signals, and an antenna shielding assembly arranged on the other surface of the PCB and used for providing a clearance area for the antenna body; the antenna body comprises an antenna grounding part, an antenna feeding part and a radiation oscillator; one end of the antenna grounding part is grounded as a grounding end of the antenna body, and the other end of the antenna grounding part is electrically connected with one end of the antenna feeding part and one end of the radiation oscillator; the other end of the antenna feed part is used as a feed point of the antenna body; the antenna shielding assembly comprises a metal adhesion layer and a capacitor; the two ends of the capacitor are respectively connected with the metal attachment layer and the PCB copper attachment layer of the PCB. Foretell board carries bluetooth antenna, the antenna shield subassembly can shield the electromagnetic wave signal at the antenna body back, also can participate in the resonance and optimize the radiation direction of antenna, through the interference of increasing other reducible environmental factors of antenna shield subassembly to the antenna body, can keep improving antenna gain by a wide margin under the small-size condition at the antenna body, solved the unable problem of compromising small-size and high performance simultaneously that current antenna exists.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a novel board carries bluetooth antenna which characterized in that, board carries bluetooth antenna includes: the antenna comprises a PCB, an antenna body arranged on one surface of the PCB and used for transmitting or receiving electromagnetic wave signals, and an antenna shielding assembly arranged on the other surface of the PCB and used for providing a clearance area for the antenna body;
the antenna body comprises an antenna grounding part, an antenna feeding part and a radiation oscillator;
one end of the antenna grounding part is grounded as a grounding end of the antenna body, and the other end of the antenna grounding part is simultaneously electrically connected with one end of the antenna feeding part and one end of the radiation oscillator; the other end of the antenna feeding part is used as a feeding point of the antenna body;
the antenna shielding assembly comprises a metal adhesion layer and a capacitor; and two ends of the capacitor are respectively connected with the metal adhesion layer and the PCB copper-attached layer of the PCB.
2. A novel bluetooth on board antenna according to claim 1, characterized in that the orthographic projection area of the metal attachment layer covers the radiating element.
3. A novel bluetooth on board antenna according to claim 2, characterized in that the wavelength λ of the electromagnetic wave signal for which the bluetooth on board antenna is adapted is 120.97-125mm, and the total length of the radiating element is 1/4 of the wavelength λ.
4. A novel board-mounted Bluetooth antenna according to any one of claims 1 to 3, wherein the board-mounted Bluetooth antenna further comprises a first wrapping edge and a second wrapping edge which are arranged on both sides of the PCB and are grounded, and the first wrapping edge and the second wrapping edge are both connected with the grounded end.
5. A novel board-mounted Bluetooth antenna of claim 4, wherein the second wrapping edge comprises an antenna wrapping edge arranged at the end part of the radiating oscillator and a copper-clad wrapping edge arranged at one side of the copper-clad layer of the PCB, and the antenna wrapping edge is insulated from the radiating oscillator through an insulating base material on the PCB.
6. The novel on-board Bluetooth antenna of claim 5, wherein the first and second rims are copper rims.
7. A novel on-board Bluetooth antenna of claim 5, wherein the external dimensions of the antenna body are no greater than 6.5mm in length and no greater than 5mm in width; the metal adhesion layer is a rectangular adhesion layer with the length of 4.5-5mm and the width of 3.3-4 mm.
8. A novel on-board bluetooth antenna according to claim 7, wherein the thickness of the metal attachment layer is 0.017-0.035 mm.
9. The novel onboard Bluetooth antenna of claim 8, wherein the metal attachment layer is a copper attachment layer.
10. A novel on-board bluetooth antenna according to claim 9, wherein the first and second rims are each 0.017-0.035mm thick and 0.6-1.2mm wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020732487.3U CN212062680U (en) | 2020-05-07 | 2020-05-07 | Novel onboard Bluetooth antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020732487.3U CN212062680U (en) | 2020-05-07 | 2020-05-07 | Novel onboard Bluetooth antenna |
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| Publication Number | Publication Date |
|---|---|
| CN212062680U true CN212062680U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020732487.3U Active CN212062680U (en) | 2020-05-07 | 2020-05-07 | Novel onboard Bluetooth antenna |
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| CN (1) | CN212062680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548644A (en) * | 2021-06-30 | 2022-12-30 | 华为技术有限公司 | Earphone set |
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2020
- 2020-05-07 CN CN202020732487.3U patent/CN212062680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548644A (en) * | 2021-06-30 | 2022-12-30 | 华为技术有限公司 | Earphone set |
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Address after: 3 / F, building A5, Nanshan wisdom Park, 1001 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen jingxun Technology Co.,Ltd. Address before: 3 / F, building A5, Nanshan wisdom Park, 1001 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN JINGXUN SOFTWARE COMMUNICATION TECHNOLOGY Co.,Ltd. |