CN216529363U - 5G multi-band PCB antenna - Google Patents
5G multi-band PCB antenna Download PDFInfo
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- CN216529363U CN216529363U CN202220056372.6U CN202220056372U CN216529363U CN 216529363 U CN216529363 U CN 216529363U CN 202220056372 U CN202220056372 U CN 202220056372U CN 216529363 U CN216529363 U CN 216529363U
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Abstract
A 5G multi-band PCB antenna, comprising: connect, coaxial conductor, shell and circuit board, coaxial conductor extend to the inside of shell from the inside of connecting, and the circuit board is located the inside of shell, and coaxial conductor has outer shielding layer and central line, its characterized in that: the front surface of the circuit board is provided with a feed point, a grounding point, a low-frequency radiation unit and an intermediate-frequency radiation unit, the outer shielding layer is electrically connected with the grounding point, the central line is electrically connected with the feed point, the grounding point is electrically connected with the low-frequency radiation unit, the feeding point is electrically connected with the intermediate-frequency radiation unit, the back surface of the circuit board is provided with at least two impedance matching units, and the two impedance matching units are respectively matched with the low-frequency radiation unit and the intermediate-frequency radiation unit. The 5G multi-band PCB antenna can realize the multi-band coverage of 698-.
Description
Technical Field
The utility model relates to a PCB antenna, in particular to a 5G multiband PCB antenna.
Background
5G not only will solve the people-to-people communication as a novel mobile communication network, for the user provide the extremely service experience that the augmented reality, virtual reality, super high definition video etc. are on the spot more, more will solve people and thing, thing and thing communication problem, satisfy thing networking application demands such as mobile medical treatment, car networking, intelligent house, industrial control, environmental monitoring.
With the development and application of 5G mobile communication technology, the conventional 698-.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an embodiment of the present invention provides a 5G multiband PCB antenna, including: the coaxial cable comprises a connector, a coaxial cable, a shell and a circuit board, wherein the coaxial cable extends from the inside of the connector to the inside of the shell, the circuit board is positioned in the shell, the coaxial cable is provided with an outer shielding layer and a center line, the front surface of the circuit board is provided with a feeding point, a grounding point, a low-frequency radiation unit and a medium-frequency radiation unit, the outer shielding layer is electrically connected with the grounding point, the center line is electrically connected with the feeding point, the grounding point is electrically connected with the low-frequency radiation unit, the feeding point is electrically connected with the medium-frequency radiation unit, the back surface of the circuit board is provided with at least two impedance matching units, and the two impedance matching units are respectively matched with the low-frequency radiation unit and the medium-frequency radiation unit.
Furthermore, the front surface of the circuit board is also provided with a transmission line, the feeding point and the intermediate frequency radiating element are electrically connected through the transmission line, the low frequency radiating element is provided with a first low frequency radiating part and a second low frequency radiating part, the first low frequency radiating part and the second low frequency radiating part are both in a shape of letter 'C', the first low frequency radiating part and the second low frequency radiating part are symmetrically arranged relative to the transmission line, the back surface of the circuit board is provided with three impedance matching units, and the three impedance matching units are respectively matched with the first low frequency radiating part, the second low frequency radiating part and the intermediate frequency radiating element.
Furthermore, the front surface of the circuit board is also provided with two coupling gaps, one coupling gap is positioned between the first low-frequency radiation part and the transmission line, and the other coupling gap is positioned between the second low-frequency radiation part and the transmission line.
Further, the length of the low-frequency radiating element is 1/4 of the low-frequency center wavelength, and the length of the intermediate-frequency radiating element is 1/4 of the intermediate-frequency center wavelength.
Further, the intermediate frequency radiation unit has first intermediate frequency radiation part, second intermediate frequency radiation part and third intermediate frequency radiation part, first intermediate frequency radiation part, second intermediate frequency radiation part form the electricity with third intermediate frequency radiation part in proper order and are connected, first intermediate frequency radiation part and third intermediate frequency radiation part all are the rectangle, the width of first intermediate frequency radiation part is less than the width of third intermediate frequency radiation part, second intermediate frequency radiation part is trapezoidal, first intermediate frequency radiation part forms the electricity with the transmission line and is connected.
Further, the impedance matching unit is rectangular.
Further, the wiring board is formed of a glass fiber epoxy resin.
Further, the 5G multiband PCB antenna further includes: the foam is fixed with the circuit board on the front side and fixed with the shell on the back side.
Further, the foam is formed of an ethylene-vinyl acetate copolymer.
Furthermore, the thickness of the foam is 2.3-2.7 mm.
After the technical scheme is adopted, the utility model has the effects that: the 5G multi-band PCB antenna can realize the multi-band coverage of 698-.
Drawings
FIG. 1 is a front perspective view of a 5G multi-band PCB antenna according to the present invention;
FIG. 2 is a rear perspective view of a 5G multi-band PCB antenna according to the present invention;
FIG. 3 is a top perspective view of a 5G multi-band PCB antenna according to the present invention;
FIG. 4 is a schematic diagram of the standing wave simulation of the 5G multiband PCB antenna according to the present invention.
Detailed Description
It is specifically noted that, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise; the meaning of "several" is at least one. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a certain posture, and if the certain posture is changed, the directional indicator is changed accordingly.
The technical solution of the present invention is further described by the following examples:
the utility model provides a 5G multiband PCB antenna, which is shown in a combined figure 1-3, and comprises: the coaxial cable comprises a connector 1, a coaxial cable 3, a shell 6 and a circuit board 7, wherein the coaxial cable 3 extends from the inside of the connector 1 to the inside of the shell 6, the circuit board 7 is positioned in the shell 6, the coaxial cable 3 is provided with an outer shielding layer and a center line, the front surface of the circuit board 7 is provided with a feeding point 4, a grounding point 5, a low-frequency radiation unit 8 and an intermediate-frequency radiation unit 11, the outer shielding layer is electrically connected with the grounding point 5, the center line is electrically connected with the feeding point 4, the grounding point 5 is electrically connected with the low-frequency radiation unit 8, the feeding point 4 is electrically connected with the intermediate-frequency radiation unit 11, the back surface of the circuit board 7 is provided with at least two impedance matching units 12, and the two impedance matching units 12 are respectively matched with the low-frequency radiation unit 8 and the intermediate-frequency radiation unit 11.
When the 5G multi-band PCB antenna works, the joint 1 is connected into signal transceiving equipment such as a router, the coaxial conductor 3 is connected with a circuit board of the signal transceiving equipment, the low-frequency radiation unit 8 is used for radiating low-frequency signals, and the intermediate-frequency radiation unit 11 is used for radiating intermediate-frequency signals. The low-frequency radiating element 8 and the medium-frequency radiating element 11 may be formed on the front surface of the circuit board 7 by printing. Since the impedance matching unit 12 for matching the antenna by coupling is provided, the impedance bandwidth of the antenna can be improved, and the target VSWR <3 can be achieved in the working range.
Specifically, the front surface of the circuit board 7 further has a transmission line 9, the feeding point 4 and the intermediate frequency radiating element 11 are electrically connected through the transmission line 9, the low frequency radiating element 8 has a first low frequency radiating portion and a second frequency radiating portion, both of which are in the shape of letter "C", and the first low frequency radiating portion and the second frequency radiating portion are symmetrically arranged with respect to the transmission line 9, the back surface of the circuit board 7 has three impedance matching units 12, and the three impedance matching units 12 are respectively matched with the first low frequency radiating portion, the second frequency radiating portion and the intermediate frequency radiating element 11. In this embodiment, the first and second low-frequency radiating portions have a flat, inverted open "C" shape.
More specifically, the front surface of the wiring board 7 also has two coupling slots 10, one coupling slot 10 being located between the first low-frequency radiating portion and the transmission line 9, and the other coupling slot 10 being located between the second low-frequency radiating portion and the transmission line 9. The transmission line 9 is used as an excitation branch and is coupled with the low-frequency radiation unit through the gap 10, so that the capacitive loading of the branch is realized, and the bandwidth expansion is facilitated.
Specifically, the length of the low-frequency radiating element 8 (i.e., the length in the left-right direction in fig. 1, the same applies hereinafter) is 1/4 of the low-frequency center wavelength, and the length of the intermediate-frequency radiating element 11 is 1/4 of the intermediate-frequency center wavelength. The high-frequency working bandwidth can be realized by the frequency doubling effect of the low-frequency radiation unit 8 and the medium-frequency radiation unit 11.
Specifically, the intermediate frequency radiation unit 11 has a first intermediate frequency radiation section, a second intermediate frequency radiation section, and a third intermediate frequency radiation section, the first intermediate frequency radiation section, the second intermediate frequency radiation section, and the third intermediate frequency radiation section are electrically connected in sequence, the first intermediate frequency radiation section and the third intermediate frequency radiation section are both rectangular, the width of the first intermediate frequency radiation section (i.e., the length in the upper direction in fig. 1, the same applies below) is smaller than the width of the third intermediate frequency radiation section, the second intermediate frequency radiation section is trapezoidal, and the first intermediate frequency radiation section is electrically connected to the transmission line 9. Namely, the intermediate frequency radiation unit 11 is in a transverse 'bottle' shape, and the shape can enable the 5G multiband PCB antenna to have good signal characteristics.
Specifically, the impedance matching unit 12 is rectangular. The above shape can make the 5G multiband PCB antenna have good signal characteristics.
Specifically, the 5G multiband PCB antenna further includes: and one end of the steering seat 2 is in rotating connection surrounding the extending direction parallel to the coaxial conductor 3 with the joint 1, the other end of the steering seat 2 is in rotating connection surrounding the extending direction perpendicular to the coaxial conductor 3 with the shell 6, and the coaxial conductor 3 passes through the steering seat 2. Owing to set up and turned to seat 2, consequently shell 6 can turn to seat 2 relatively and take place to rotate to turning to seat 2 can take place to rotate relatively to joint 1, making the user can adjust the signal field distribution of ultra wide band WIFI antenna to a certain extent.
Specifically, the wiring board 7 is formed of a glass fiber epoxy resin (FR 4). The glass fiber epoxy resin has a relative dielectric constant of 4.4 and a loss tangent of 0.02, and can improve the signal characteristics of the 5G multiband PCB antenna.
Specifically, the 5G multiband PCB antenna further includes: the foam 13, the front of the foam 13 and the circuit board 7 form a fixed, and the back of the foam 13 and the shell 5 form a fixed. The circuit board 7 can be prevented from shaking by fixing the foam 13, and the foam 13 can not cause abrasion to the circuit board 7.
More specifically, the foam 13 is formed of ethylene-vinyl acetate copolymer (EVA). The ethylene-vinyl acetate copolymer basically does not influence the transmission of signals, and the signal characteristics of the ultra-wideband WIFI antenna can be ensured.
More specifically, the foam 13 has a thickness of 2.3 to 2.7mm (i.e., a length in the vertical direction in FIG. 3). In this example, the thickness of the foam 13 is 2.5 mm.
As shown in FIG. 4, when the 5G multi-band PCB antenna works in the frequency bands of 698-.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the utility model, so that equivalent changes or modifications in the structure, features and principles of the utility model described in the claims should be included in the claims.
Claims (10)
1. A 5G multi-band PCB antenna, comprising: the coaxial cable comprises a connector, a coaxial conductor, a shell and a circuit board, wherein the coaxial conductor extends from the inside of the connector to the inside of the shell, the circuit board is positioned in the inside of the shell, the coaxial conductor is provided with an outer shielding layer and a center line, and the coaxial cable is characterized in that: the front surface of the circuit board is provided with a feed point, a grounding point, a low-frequency radiation unit and a medium-frequency radiation unit, the outer shielding layer is electrically connected with the grounding point, the central line is electrically connected with the feed point, the grounding point is electrically connected with the low-frequency radiation unit, the feeding point is electrically connected with the medium-frequency radiation unit, the back surface of the circuit board is provided with at least two impedance matching units, and the two impedance matching units are respectively matched with the low-frequency radiation unit and the medium-frequency radiation unit.
2. The 5G multiband PCB antenna of claim 1, wherein: the front surface of the circuit board is also provided with a transmission line, the feed point and the intermediate frequency radiation unit are electrically connected through the transmission line, the low frequency radiation unit is provided with a first low frequency radiation part and a second frequency radiation part, the first low frequency radiation part and the second frequency radiation part are both in a letter C shape, the first low frequency radiation part and the second frequency radiation part are symmetrically arranged relative to the transmission line, the back surface of the circuit board is provided with three impedance matching units, and the three impedance matching units are respectively matched with the first low frequency radiation part, the second frequency radiation part and the intermediate frequency radiation unit.
3. The 5G multiband PCB antenna of claim 2, wherein: the front surface of the circuit board is also provided with two coupling gaps, one coupling gap is positioned between the first low-frequency radiation part and the transmission line, and the other coupling gap is positioned between the second low-frequency radiation part and the transmission line.
4. The 5G multiband PCB antenna of claim 1, wherein: the length of the low-frequency radiating element is 1/4 of the low-frequency center wavelength, and the length of the intermediate-frequency radiating element is 1/4 of the intermediate-frequency center wavelength.
5. The 5G multiband PCB antenna of claim 1, wherein: the intermediate frequency radiation unit has first intermediate frequency radiation part, second intermediate frequency radiation part and third intermediate frequency radiation part, first intermediate frequency radiation part, second intermediate frequency radiation part form the electricity with third intermediate frequency radiation part in proper order and are connected, first intermediate frequency radiation part and third intermediate frequency radiation part all are the rectangle, the width of first intermediate frequency radiation part is less than the width of third intermediate frequency radiation part, second intermediate frequency radiation part is trapezoidal, first intermediate frequency radiation part forms the electricity with the transmission line and is connected.
6. The 5G multiband PCB antenna of claim 1, wherein: the impedance matching unit is rectangular.
7. The 5G multiband PCB antenna of claim 1, wherein: the circuit board is formed of glass fiber epoxy.
8. The 5G multiband PCB antenna of claim 1, wherein: the 5G multiband PCB antenna further includes: the foam is fixed with the circuit board on the front side and fixed with the shell on the back side.
9. The 5G multiband PCB antenna of claim 8, wherein: the foam is formed from ethylene-vinyl acetate copolymer.
10. The 5G multiband PCB antenna of claim 9, wherein: the thickness of the foam is 2.3-2.7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220056372.6U CN216529363U (en) | 2022-01-11 | 2022-01-11 | 5G multi-band PCB antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220056372.6U CN216529363U (en) | 2022-01-11 | 2022-01-11 | 5G multi-band PCB antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216529363U true CN216529363U (en) | 2022-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220056372.6U Active CN216529363U (en) | 2022-01-11 | 2022-01-11 | 5G multi-band PCB antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216529363U (en) |
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2022
- 2022-01-11 CN CN202220056372.6U patent/CN216529363U/en active Active
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