CN113067140B - Electronic device and PCB antenna thereof - Google Patents
Electronic device and PCB antenna thereof Download PDFInfo
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- CN113067140B CN113067140B CN202110348401.6A CN202110348401A CN113067140B CN 113067140 B CN113067140 B CN 113067140B CN 202110348401 A CN202110348401 A CN 202110348401A CN 113067140 B CN113067140 B CN 113067140B
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- connection
- grounding
- pcb antenna
- connecting sheet
- substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a PCB antenna, which comprises a substrate and a grounding auxiliary connecting sheet, wherein an antenna and a grounding copper leakage area are arranged on one side surface of the substrate, and a plurality of spaced grounding via holes are formed in the grounding copper leakage area; the auxiliary grounding connecting sheet comprises a connecting sheet and a plurality of connecting pins, the width of the connecting sheet is greater than that of a grounding copper leakage area, each connecting pin is arranged at one side edge of the connecting sheet at intervals, the distance between every two adjacent connecting pins corresponds to the distance between every two adjacent grounding via holes, each connecting pin correspondingly welds in each grounding via hole, the connecting sheet is used for connecting conductive auxiliary materials, the width of the increased connecting sheet is far greater than that of the grounding copper leakage area, therefore, the attaching space of the conductive auxiliary materials is increased, the reliability and the stability of the connection of the conductive auxiliary materials are ensured, and further the grounding reliability of the PCB antenna is ensured. Correspondingly, the invention also discloses an electronic device with the PCB antenna.
Description
Technical Field
The invention relates to the technical field of PCB antennas, in particular to a PCB antenna capable of improving grounding reliability and an electronic device with the PCB antenna.
Background
At present, the antenna forms commonly used in the electronic product industry include a PCB antenna, an FPC antenna, an LDS antenna, and a slot antenna. Among the four types of antennas, the PCB antenna has an extremely obvious advantage, and firstly, the PCB antenna has the lowest cost due to its mature technology and process, and secondly, the PCB antenna is made of FR4 rigid material, so that the assembly of a production line is most convenient, and the reliability can be ensured. In comparison, the FPC antenna has disadvantages of high cost and inconvenience in assembly; the LDS antenna has more obvious defects, the cost is much higher than that of a PCB antenna, and the process is more complex; due to the special application scene of the slot antenna, the appearance of the product is influenced to a certain extent, and the slot antenna is used less at present.
However, the conventional PCB antenna still has some disadvantages in the ground design and reliability thereof. As shown in fig. 1, the conventional PCB antenna 100 'is grounded by forming a copper leakage region 111' by leaking copper on a substrate 110 ', attaching a conductive cloth 200' or a copper foil 200 'to the copper leakage region 111', and connecting the conductive cloth 200 'or the copper foil 200' with a system ground. Because the Y-direction space of the PCB antenna 100 'is limited, the copper leakage area 111' can only reserve a width of about 2mm to attach the conductive cloth or the copper foil, so the reliability is very poor, and the copper foil or the conductive cloth is easy to fall off. In addition, in the overall design of electronic products, the plane where the system is usually located and the plane of the antenna are generally difficult to be in the same plane, and generally, the planes have certain folding angles, so that the copper foil or the conductive cloth is easy to fall off in the assembling process.
Therefore, it is desirable to provide a PCB antenna and an electronic device capable of improving grounding reliability to solve the above problems.
Disclosure of Invention
The invention aims to provide a PCB antenna capable of improving grounding reliability.
Another object of the present invention is to provide an electronic device capable of improving the grounding reliability of a PCB antenna.
In order to achieve the purpose, the technical scheme of the invention is as follows: the PCB antenna comprises a substrate and a grounding auxiliary connecting sheet; the antenna and the grounding copper-leaking area are arranged on one side face of the substrate, and a plurality of spaced grounding via holes are formed in the grounding copper-leaking area; the auxiliary grounding connecting piece comprises a connecting piece and a plurality of connecting pins, the width of the connecting piece is larger than that of the grounding copper leakage area, the connecting pins are arranged on one side edge of the connecting piece at intervals, the distance between every two adjacent connecting pins corresponds to the distance between every two adjacent grounding through holes, the connecting pins are correspondingly welded in the grounding through holes, and the connecting piece is used for connecting conductive auxiliary materials.
Preferably, each of the connection pins is shaped like a flat plate, a bent shape or an arc, and an included angle between each of the connection pins and the connection sheet is 0-180 °.
Preferably, each of the connection pins is in a flat plate shape, and one end of each of the connection pins is connected to the connection piece and forms an included angle with the connection piece or is in the same plane with the connection piece.
Preferably, each of the connection pins includes a first connection end and a second connection end arranged at an included angle, the first connection end is connected to the connection piece and forms a certain included angle with the connection piece, and the second connection end is connected to one end of the first connection end, which is far away from the connection piece.
Preferably, each of the connecting pins and the connecting piece are integrally formed.
Preferably, the length of the connecting sheet corresponds to or is greater than that of the grounding copper leakage area, and the width of the connecting sheet is greater than 2mm.
Correspondingly, the invention also provides an electronic device which comprises a main circuit board and the PCB antenna, wherein a system grounding end is arranged on the main circuit board, the substrate of the PCB antenna is electrically connected with the main circuit board, and the other end of the conductive auxiliary material connected to the connecting sheet is connected to the system grounding end.
Preferably, the substrate and the main circuit board are arranged at an included angle, and the connecting sheet is arranged parallel to the main circuit board.
Preferably, the conductive auxiliary material is conductive cloth or conductive copper foil.
Compared with the prior art, the PCB antenna has the advantages that the auxiliary grounding connecting sheet is additionally arranged and comprises the connecting sheet and the connecting pins, the width of the connecting sheet is larger than that of the copper leakage area, the connecting pins are arranged at one side edge of the connecting sheet at intervals, a plurality of grounding through holes corresponding to the connecting pins are formed in the copper leakage area of the substrate at intervals, the connecting pins of the auxiliary grounding connecting sheet are correspondingly welded in the grounding through holes, then the connecting sheet is used for connecting conductive auxiliary materials, the grounding of the PCB antenna is extended to other planes, and the width of the increased connecting sheet is far larger than that of the copper leakage area, so that the attaching space of the conductive auxiliary materials is increased, and the connecting reliability and the assembling reliability of the conductive auxiliary materials are ensured. Correspondingly, when the conductive auxiliary materials are connected with the system ground in an overlapping mode, the conductive auxiliary materials are not prone to falling off, and the reliability of connection with the system ground is guaranteed. Correspondingly, the electronic device with the PCB antenna of the invention also has the same technical effect.
Drawings
Fig. 1 is a schematic structural diagram of a conventional PCB antenna.
Fig. 2 is a schematic structural diagram of an embodiment of the PCB antenna of the present invention.
Fig. 3 is a schematic structural diagram of another embodiment of the PCB antenna of the present invention.
Fig. 4 is a schematic diagram of the PCB antenna in fig. 3 connected with a conductive auxiliary material.
Fig. 5 is a schematic view of a state in which the PCB antenna of the present invention is mounted on a main circuit board of an electronic device.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements. Referring to fig. 2-5, the PCB antenna 100 of the present invention is mainly suitable for an electronic device 1 such as a notebook computer, a tablet computer, etc., but not limited thereto, and the PCB antenna 100 of the present invention may also be applied to any other electronic devices.
Referring first to fig. 2-4, the PCB antenna 100 of the present invention includes a substrate 110 and a ground auxiliary connecting pad 120. The antenna 111 is disposed on one side of the substrate 110, the feeding point 112 is disposed on the antenna 111, the antenna 111 and the feeding point 112 are disposed in a conventional manner in the art, and detailed description is omitted, a ground copper leakage region 113 is disposed on the substrate 110 at a position corresponding to the antenna 111, the ground copper leakage region 113 is also formed in a conventional manner in the art, and the ground copper leakage region 113 is provided with a plurality of spaced ground vias 114, that is, the ground vias 114 penetrate through two sides of the substrate 110. The auxiliary ground connecting tab 120 includes a connecting tab 121 and a plurality of connecting pins 122, the width H1 of the connecting tab 121 is greater than the width H2 (see fig. 2) of the copper leakage grounding area 113, the length of the connecting tab 121 corresponds to the length of the copper leakage grounding area 113 or is greater than the length of the copper leakage grounding area 113, the connecting pins 122 are disposed at the same side of the connecting tab 121 at intervals, the distance between two adjacent connecting pins 122 corresponds to the distance between two adjacent ground vias 114, and the connecting pins 122 are correspondingly soldered in the ground vias 114, so that the connecting tab 121 is electrically connected to the substrate 110, and the connecting tab 121 is used to connect the grounded conductive auxiliary material 200. Therefore, in the present invention, the position of the substrate 110 where the conductive auxiliary material 200 is connected is transferred to the connection pad 121, and the attachment space of the conductive auxiliary material 200 (see fig. 4) is increased by the connection pad 121 having a larger width, so that the stability and reliability of the connection of the conductive auxiliary material 200 are ensured, thereby increasing the grounding stability and reliability of the PCB antenna 100.
In the invention, the width H1 of the connecting sheet 121 is preferably greater than 2mm, so that the conductive auxiliary material 200 has a larger bonding space, and the bonding reliability is ensured.
Referring to fig. 2-5, in the present invention, the shape of the connecting sheet 121 and the angle between the connecting sheet 121 and the connecting pin 122 are flexibly set according to the requirement, and specifically, the angle between the connecting sheet 121 and the connecting pin 122 is set according to the angle between the plane of the system ground of the electronic device 1 and the substrate 110, so as to facilitate the connection between the connecting sheet 121 and the system ground.
Specifically, the connecting sheet 121 and each connecting pin 122 may be disposed at an angle, or may be disposed in the same plane, and after each connecting pin 122 is correspondingly soldered in each ground via 114, the connecting sheet 121 and the substrate 110 may be disposed at an angle, or may be parallel to each other or in the same plane.
Referring to fig. 2, in an embodiment of the invention, each of the connection pins 122 has a plate-like structure, the connection pins 122 are connected to one side of the connection pad 121 at intervals, and each of the connection pins 122 is disposed perpendicular to the connection pad 121, so that the connection pad 121 is disposed perpendicular to the substrate 110 after each of the connection pins 122 is soldered in the ground via 114 of the substrate 110.
It is understood that each connection pin 122 and the connection piece 121 may be disposed at any included angle, and each connection pin 122 may also extend along the plane of the connection piece 121, that is, the included angle between the connection pin 122 and the connection piece 121 is flexibly set within a range of 0 to 180 °, so that, after each connection pin 122 is soldered in the ground via 114 on the substrate 110, the connection piece 121 and the substrate 110 may be disposed at any included angle or in the same plane, so as to adapt to the position between the PCB antenna 100 and the system ground of the electronic device 1, and thus the PCB antenna 100 is more flexibly mounted.
Referring to fig. 3-4, in another embodiment of the invention, each connection pin 122 is bent, and specifically, each connection pin 122 includes a first connection end 1221 and a second connection end 1222 disposed at an angle, one end of the first connection end 1221 is connected to a side of the connection pad 121, the first connection end 1221 is disposed perpendicular to the connection pad 121, the second connection end 1222 is connected to the other end of the first connection end 1221 and protrudes away from the connection pad 121, the second connection end 1222 is configured to be soldered into the ground via 114, and when the length of the first connection end 1221 is greater than the distance from the ground via 114 to the edge of the substrate 110, the connection pad 121 can be located outside the substrate 110 without occupying space on the substrate 110. Of course, the length of the first connection end 1221 can be set arbitrarily.
In this embodiment, the first connection end 1221 and the second connection end 1222 are vertically disposed, that is, the second connection end 1222 is parallel to the plane of the connection pad 121, and the length of the first connection end 1221 is greater than the distance between the ground via 114 and the edge of the substrate 110, so that after each connection pin 122 is soldered in the ground via 114 on the substrate 110, the connection pad 121 can be located outside the substrate 110 and perpendicular to the substrate 110, as shown in fig. 4, the connection pad 121 does not occupy space on the substrate 110, thereby allowing more space on the substrate 110 for circuit arrangement or mounting of other electronic components.
It can be understood that the included angle between the first connection end 1221 and the second connection end 1222, and the included angle between the first connection end 1221 and the substrate 110, can be flexibly set as required. Also, the connection pins 122 are not limited to the bent shape, for example, the connection pins 122 may be directly provided in an arc shape, or in any other shape.
In the present invention, each connection pin 122 and the connection piece 121 are integrally formed by punching a steel sheet, but not limited to be formed by steel sheet, other conductive materials with hardness may be integrally formed, and the angle between each connection pin 122 and the connection piece 121 and the shape of the connection pin 122 are set according to the position and the angle relationship between the PCB antenna 100 and the plane where the system ground of the electronic device 1 is located.
Referring to fig. 5, the present invention further provides an electronic device 1, which includes a PCB antenna 100 and a main circuit board 300, wherein the PCB antenna 100 has the structure as described above, the main circuit board 300 is provided with a system ground terminal 310, and the plane of the system ground terminal 310 is the plane of the main circuit board 300, in the electronic device 1, the substrate 110 of the PCB antenna 100 and the main circuit board 300 are installed at an included angle of approximately 110 °, so that the connecting pin 122 of the auxiliary grounding connecting piece 120 is soldered to the substrate 110, and the connecting piece 121 and the substrate 110 are also installed at an included angle of approximately 110 °. Thus, when the PCB antenna 100 is mounted on the main circuit board 300, the connecting plate 121 is disposed substantially parallel to the main circuit board 300, one end of the conductive auxiliary material 200 is bonded to the connecting plate 121, the other end of the conductive auxiliary material 200 is connected to the system ground 310, and the connecting plate 121 increases the attachment space of the conductive auxiliary material 200, compared with a method of directly connecting the substrate 110 having an angle with the main circuit board 300 through the two ends of the conductive auxiliary material 200, the present invention can ensure the bonding stability of the conductive auxiliary material 200, thereby ensuring the grounding reliability of the PCB antenna 100.
In the present invention, the conductive auxiliary material 200 is preferably a conductive cloth or a conductive copper foil, but is not limited thereto.
It should be noted that the main circuit board 300 of the electronic device 1 and the system ground 310 thereon are disposed in a conventional manner in the art, and will not be described in detail.
In summary, according to the PCB antenna 100 of the present invention, by additionally providing the auxiliary grounding connecting sheet 120, the auxiliary grounding connecting sheet 120 includes a connecting sheet 121 and a plurality of connecting pins 122, the width of the connecting sheet 121 is greater than the width of the copper leakage grounding region 113, the connecting pins 122 are disposed at one side of the connecting sheet 121 at intervals, and a plurality of grounding vias 114 corresponding to the connecting pins 122 are disposed at intervals in the copper leakage grounding region 113 of the substrate 110, the connecting pins 122 of the auxiliary grounding connecting sheet 120 are correspondingly soldered in the grounding vias 114, and then the connecting sheet 121 is used to connect the auxiliary conductive material 200, since the grounding of the PCB antenna 100 is extended to other planes, and the increased width of the connecting sheet 121 is greater than the width of the copper leakage grounding region 113, the attachment space of the auxiliary conductive material 200 is increased, and the stability and reliability of the connection of the auxiliary conductive material 200 are ensured. Correspondingly, when the conductive auxiliary material is lapped with the system grounding end, the conductive auxiliary material 200 is not easy to fall off, and the reliability and the stability of connection with the system grounding end are ensured.
Correspondingly, the electronic device 1 having the PCB antenna 100 of the present invention has the same technical effect.
The structure and principle of the other parts of the PCB antenna 100 according to the present invention are well known to those skilled in the art, and will not be described in detail herein.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (9)
1. A PCB antenna, comprising:
the antenna comprises a substrate, wherein an antenna and a ground copper leakage area are arranged on one side surface of the substrate, and the ground copper leakage area is provided with a plurality of spaced ground via holes;
the auxiliary grounding connecting sheet comprises a connecting sheet and a plurality of connecting pins, the width of the connecting sheet is greater than that of the grounding copper leakage area, the connecting pins are arranged at one side edge of the connecting sheet at intervals, any included angle is formed between each connecting pin and the connecting sheet, the distance between every two adjacent connecting pins corresponds to the distance between every two adjacent grounding through holes, each connecting pin is correspondingly welded in each grounding through hole, so that any included angle can be formed between the connecting sheet and the substrate, and the connecting sheet is used for connecting conductive auxiliary materials.
2. The PCB antenna of claim 1, wherein each of the connection pins has a flat, bent or arc shape, and an angle between each of the connection pins and the connection pad is in a range of 0 ° to 180 °.
3. The PCB antenna of claim 1, wherein each of the connection pins is shaped as a flat plate, and one end of the connection pin is connected to the connection pad and forms an included angle with the connection pad or is in the same plane with the connection pad.
4. The PCB antenna of claim 1, wherein each of the connection pins includes a first connection end and a second connection end arranged at an included angle, the first connection end is connected to the connection pad and forms an included angle with the connection pad, and the second connection end is connected to an end of the first connection end away from the connection pad.
5. The PCB antenna of claim 1, wherein each of the connection pins is integrally formed with the connection pad.
6. The PCB antenna of claim 1, wherein the connecting tab has a length corresponding to or greater than a length of the ground leaky copper region, and a width greater than 2mm.
7. An electronic device, comprising:
the main circuit board is provided with a system grounding end;
the PCB antenna of any of claims 1-6, wherein the substrate is electrically connected to the main circuit board and the other end of the conductive auxiliary material connected to the connection piece is connected to the system ground.
8. The electronic device of claim 7, wherein the substrate is disposed at an angle to the main circuit board, and the connecting tab is disposed parallel to the main circuit board.
9. The electronic device of claim 7, wherein the conductive auxiliary material is a conductive cloth or a conductive copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110348401.6A CN113067140B (en) | 2021-03-31 | 2021-03-31 | Electronic device and PCB antenna thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110348401.6A CN113067140B (en) | 2021-03-31 | 2021-03-31 | Electronic device and PCB antenna thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113067140A CN113067140A (en) | 2021-07-02 |
| CN113067140B true CN113067140B (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110348401.6A Active CN113067140B (en) | 2021-03-31 | 2021-03-31 | Electronic device and PCB antenna thereof |
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| CN (1) | CN113067140B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447612A (en) * | 2021-12-28 | 2022-05-06 | 普尔思（苏州）无线通讯产品有限公司 | Millimeter wave PCB antenna structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206196049U (en) * | 2015-12-11 | 2017-05-24 | 苹果公司 | Electronic equipment , speaker and antenna |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI226141B (en) * | 2003-07-15 | 2005-01-01 | Yageo Corp | Integrated antenna for wireless electronic device |
| WO2012063979A1 (en) * | 2010-11-08 | 2012-05-18 | 주식회사 모비텍 | Pad printing internal antenna and manufacturing method thereof |
| CN201904434U (en) * | 2010-11-17 | 2011-07-20 | 启碁科技股份有限公司 | broadband antenna |
| CN107437653A (en) * | 2016-05-28 | 2017-12-05 | 华为终端（东莞）有限公司 | The communication terminal of antenna structure and the application antenna structure |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206196049U (en) * | 2015-12-11 | 2017-05-24 | 苹果公司 | Electronic equipment , speaker and antenna |
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| CN113067140A (en) | 2021-07-02 |
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