CN217563848U - Radio frequency antenna circuit board wiring structure and terminal equipment - Google Patents
Radio frequency antenna circuit board wiring structure and terminal equipment Download PDFInfo
- Publication number
- CN217563848U CN217563848U CN202221364814.XU CN202221364814U CN217563848U CN 217563848 U CN217563848 U CN 217563848U CN 202221364814 U CN202221364814 U CN 202221364814U CN 217563848 U CN217563848 U CN 217563848U
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- copper
- circuit board
- radio frequency
- clad plate
- line
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Abstract
The utility model discloses a radio frequency antenna circuit board walks line structure and terminal equipment belongs to the PCB design and walks line technical field. The radio frequency antenna circuit board routing structure comprises a circuit board body, wherein the circuit board body comprises a first copper-clad plate, a second copper-clad plate and a third copper-clad plate which are sequentially arranged from top to bottom, the first copper-clad plate is provided with a plurality of conductive routing lines, the conductive routing lines are microstrip lines, the widths of all the conductive routing lines are the same, and the second copper-clad plate is located in a hollow area under the conductive routing lines. The utility model discloses the effectual tradition of having solved is walked line signal quality poor, antenna energy scattering, is walked line crosstalk, index scheduling problem not up to standard between the line.
Description
Technical Field
The utility model belongs to the technical field of the line is walked in the PCB design, especially relate to a radio frequency antenna circuit board walks line structure and terminal equipment.
Background
The wiring design in the field of radio frequency circuits needs to solve key problems including impedance matching, wiring crosstalk, energy scattering and the like; impedance matching means that the impedance of the wiring keeps 50 ohm impedance; the wiring crosstalk means that other wirings are far away from the radio frequency circuit, and the other wirings are prevented from crosstalk and mutual influence; energy scattering means that the wires of the radio frequency circuit need to be prevented from having strong interference among the wires.
At present, the wiring design meeting the requirements of antenna design on impedance, crosstalk and interference resistance is mainly realized by generally designing wiring, calculating the designed line width of impedance and keeping impedance matching, but because the requirement of a radio frequency antenna is extremely high, the radio frequency antenna needs to be optimized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome one or more of prior art not enough, provide a radio frequency antenna circuit board and walk line structure and terminal equipment.
The purpose of the utility model is realized through the following technical scheme: according to the utility model discloses a first aspect provides a radio frequency antenna circuit board walks line structure, including the circuit board body, the circuit board body is including first copper-clad plate, second copper-clad plate and the third copper-clad plate that from top to bottom sets gradually, first copper-clad plate is provided with a plurality of electrically conductive lines of walking, electrically conductive line of walking is the microstrip line, and all electrically conductive widths of walking the line are the same, the second copper-clad plate is located electrically conductive walk the regional fretwork of line under.
Preferably, the width of the hollowed-out area on the second copper-clad plate is 3 times of the width of the conductive trace corresponding to the hollowed-out area.
Preferably, the first copper-clad plate, the second copper-clad plate and the third copper-clad plate are all FR4 plates.
Preferably, the width of the conductive wire is 18 mils, the copper thickness of the first copper-clad plate is 1 ounce, and the distance between the first copper-clad plate and the third copper-clad plate is 10.30 mils.
Preferably, the first copper-clad plate is provided with a plurality of ground holes, and the ground holes are arranged around the microstrip routing line.
Preferably, the plurality of ground holes are staggered.
Preferably, the plurality of ground holes are staggered.
According to the utility model discloses a second aspect provides a terminal equipment, terminal equipment includes terminal body and radio frequency circuit board, the radio frequency circuit board has the first aspect radio frequency antenna circuit board walk the line structure, the radio frequency circuit board is located inside the terminal body, the radio frequency circuit board with terminal body electricity is connected.
The utility model has the advantages that:
(1) The utility model adopts microstrip line, without punching and penetrating layer, to keep signal integrity;
(2) The widths of all the conductive wires in the utility model are consistent, thereby ensuring the impedance matching;
(3) The area of the second copper-clad plate, which is positioned under the conductive routing line, is hollowed out, and the copper routing line is not paved, so that the conductive routing line can reach impedance matching;
(4) The ground holes surround all the conductive wires, and the ground holes are arranged in a staggered manner, so that the interference on the conductive wires can be shielded;
(5) The utility model discloses well first copper-clad plate, second copper-clad plate and third copper-clad plate are the FR4 board, and the width of electrically conductive line of walking is 18 mils, the thick 1 ounce of copper of first copper-clad plate, interval between first copper-clad plate and the third copper-clad plate is 10.30 mils, can guarantee that impedance 50 ohm matches.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a routing structure of a radio frequency antenna circuit board provided by the present invention;
in the figure, 1 is a first copper-clad plate, 2 is a conductive routing wire, and 3 is a ground hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below with reference to embodiments, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present embodiment provides a wiring structure of a radio frequency antenna circuit board and a terminal device:
the utility model provides an embodiment of radio frequency antenna circuit board wiring structure includes: the radio frequency antenna circuit board routing structure comprises a circuit board body, wherein the circuit board body comprises a first copper-clad plate 1, a second copper-clad plate and a third copper-clad plate which are sequentially arranged from top to bottom.
The first copper-clad plate 1 is provided with a plurality of conductive wires 2, and the conductive wires 2 are microstrip lines. The microstrip line is adopted as the conductive wiring 2 in the embodiment, and the integrity of signals can be kept without punching and penetrating layers. In yet another embodiment, the first copper-clad plate 1, the second copper-clad plate and the third copper-clad plate are all FR4 plates, the width of the conductive trace is 18mil, the copper thickness of the first copper-clad plate 1 is 1 ounce, the distance between the first copper-clad plate 1 and the third copper-clad plate is 10.30mil, the width of the conductive trace 2 is 18mil, and the line width is the correct line width that the interlayer is thickened after referencing, so that 50 ohm matching of impedance can be ensured.
The widths of all the conductive wires 2 are the same, and the whole wire line formed by all the conductive wires 2 is kept short, straight and smooth, so that the impedance matching of the conductive wires 2 can be ensured.
The area of the second copper-clad plate, which is positioned under the conductive wire 2, is hollowed out, and the conductive wire 2 completely refers to a third copper-clad plate without laying the copper wire, so that impedance matching is achieved. In yet another embodiment, the width of the hollowed-out area on the second copper-clad plate is 3 times the width of the conductive trace corresponding to the hollowed-out area.
In another embodiment, the first copper-clad plate 1 is provided with a plurality of ground holes 3, the ground holes 3 are arranged around the microstrip traces, the ground holes 3 are arranged in a staggered manner, and the ground holes 3 surround all the conductive traces 2, so that the interference which the conductive traces 2 may be subjected to can be shielded. In this embodiment, through walking microstrip line control impedance, through the overall arrangement shielding line interference of ground hole 3, through the fretwork of second copper-clad plate and add thick electrically conductive mode such as walk line 2, the effectual tradition of having solved is walked the poor, antenna energy scattering, is walked the problem such as crosstalk, index not up to standard between the line.
The utility model provides an embodiment of terminal equipment includes: the terminal equipment comprises a terminal body and a radio frequency circuit board, wherein the radio frequency circuit board is provided with the radio frequency antenna circuit board routing structure in the embodiment, the radio frequency circuit board is arranged in the terminal body, and the radio frequency circuit board is electrically connected with the terminal body.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. The utility model provides a radio frequency antenna circuit board walks line structure which characterized in that, includes the circuit board body, the circuit board body is including first copper-clad plate, second copper-clad plate and the third copper-clad plate that from top to bottom sets gradually, first copper-clad plate is provided with a plurality of electrically conductive lines of walking, electrically conductive line is the microstrip line, and all electrically conductive widths of walking the line are the same, the second copper-clad plate is located electrically conductive area fretwork under walking the line.
2. The trace structure of the rf antenna circuit board according to claim 1, wherein the width of the hollowed-out area on the second copper-clad plate is 3 times the width of the conductive trace corresponding to the hollowed-out area.
3. The radio frequency antenna circuit board routing structure of claim 1, wherein the first copper-clad laminate, the second copper-clad laminate and the third copper-clad laminate are all FR4 boards.
4. The circuit board trace structure according to claim 3, wherein the width of the conductive traces is 18 mils, the copper thickness of the first copper-clad laminate is 1 ounce, and the distance between the first copper-clad laminate and the third copper-clad laminate is 10.30 mils.
5. The radio frequency antenna circuit board routing structure of claim 1, wherein the first copper-clad plate is provided with a plurality of ground holes, and the plurality of ground holes are disposed around the microstrip routing.
6. The trace structure of a radio frequency antenna circuit board according to claim 5, wherein the ground holes are staggered.
7. The trace structure according to claim 5, wherein the ground holes surround all the conductive traces.
8. A terminal device, characterized in that, the terminal device includes a terminal body and a radio frequency circuit board, the radio frequency circuit board has the radio frequency antenna circuit board routing structure of any one of claims 1 to 7, the radio frequency circuit board is arranged inside the terminal body, and the radio frequency circuit board is electrically connected with the terminal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221364814.XU CN217563848U (en) | 2022-06-02 | 2022-06-02 | Radio frequency antenna circuit board wiring structure and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221364814.XU CN217563848U (en) | 2022-06-02 | 2022-06-02 | Radio frequency antenna circuit board wiring structure and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217563848U true CN217563848U (en) | 2022-10-11 |
Family
ID=83498339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221364814.XU Active CN217563848U (en) | 2022-06-02 | 2022-06-02 | Radio frequency antenna circuit board wiring structure and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217563848U (en) |
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2022
- 2022-06-02 CN CN202221364814.XU patent/CN217563848U/en active Active
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