Antenna, circuit board and external wireless network card

Abstract

The utility model relates to the technical field of antennas, in particular to an antenna, a circuit board and an external wireless network card. The antenna comprises a grounding wire, a radiation wire and a phase adjusting wire; the grounding wire comprises a grounding main body, a first grounding arm and a second grounding arm, and the radiation wire comprises a radiation main body, a first radiation arm and a second radiation arm. The grounding main body and the radiation main body are oppositely arranged, and the first grounding arm and the second grounding arm are respectively connected to two ends of the grounding main body and extend towards one side far away from the radiation main body; the first radiation arm and the second radiation arm are respectively connected to two ends of the radiation main body and extend towards one side far away from the grounding main body. The phase adjusting wire is located between the first radiation arm and the second radiation arm and is connected with the radiation main body. According to the utility model, three frequency bands of 2.4 GHz, 5GHz and 6GHz can be supported, the signal coverage frequency band of the antenna is improved, and the long-distance signal transmission capability of the antenna is also greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to an antenna, a circuit board and an external wireless network card. Background Art

[0002] WiFi antennas are installed in wireless signal connection devices such as external wireless network cards to realize the transmission of wireless signals. WiFi technology uses the IEE802.11 protocol. After more than 20 years of continuous iterative development, from WiFi1 (IEEE802.11 standard) with a maximum data transmission rate of 2Mbps, to WiFi2 (IEEE802.11b standard) with a maximum data transmission rate of 11Mbps, to WiFi3 (IEEE802.11g standard) with a maximum data transmission rate of 54Mbps, these three generations of WiFi technology use the 2.4GHz frequency band. The fourth-generation WiFi4 (802.11n standard) and the fifth-generation WiFi5 (802.11ac standard) both support the standards of two radio frequency bands, 2.4GHz and 5GHz, with a maximum data transmission rate of 3.6Gbps. The theoretical maximum rate of WiFi6 (802.11ax standard) can reach 9.6Gbps. The radio frequency bands include 2.4GHz, 5GHz and 6GHz.

[0003] However, current antennas generally only cover the 2.4G frequency band, or the 2.4G plus 5G frequency band, and do not cover the 6G frequency band. The antenna signal coverage frequency band is insufficient. Utility Model Content

[0004] The embodiments of the present invention provide an antenna, a circuit board and an external wireless network card to solve the problem in the prior art that antennas generally only have a single 2.4G frequency band, or a 2.4G plus 5G frequency band, and do not cover the 6G frequency band, resulting in insufficient signal coverage of the antenna.

[0005] The utility model discloses an antenna, comprising a grounding line, a radiation line and a phase adjustment line; the grounding line comprises a grounding body, a first grounding arm and a second grounding arm; the radiation line comprises a radiation body, a first radiation arm and a second radiation arm;

[0006] The grounding body and the radiating body are arranged opposite to each other, the first grounding arm and the second grounding arm are respectively connected to the two ends of the grounding body and both extend toward a side away from the radiating body; the first radiating arm and the second radiating arm are respectively connected to the two ends of the radiating body and both extend toward a side away from the grounding body;

[0007] The phase adjustment line is located between the first radiation arm and the second radiation arm, and is connected to the radiation body.

[0008] Optionally, the phase adjustment trace is provided with a bending section.

[0009] Optionally, the antenna further includes a gain trace located on a side of the radiation trace away from the ground trace; the gain trace includes a first gain trace, a second gain trace, and a connecting trace;

[0010] The first gain trace and the second gain trace are arranged opposite to each other, the connecting trace is located between the first gain trace and the second gain trace and is respectively connected to the first gain trace and the second gain trace; the phase adjustment trace is connected to the connecting trace.

[0011] Optionally, the gain trace further includes a third gain trace, which is connected to a side of the connection trace away from the phase adjustment trace; and the length of the third gain trace is 26.5±0.2 mm.

[0012] Optionally, the third gain trace includes a first trace portion and a second trace portion; the first trace portion is connected to a side of the connection trace away from the phase adjustment trace, and the second trace portion is connected to the first trace portion;

[0013] The width of the first routing portion gradually increases from one end close to the connecting routing portion to the other end, and the second routing portion is circular.

[0014] Optionally, the length of the first ground arm is 28.5±0.2 mm, and the length of the second ground arm is 29.5±0.2 mm; the length of the first radiation arm and the second radiation arm are both 20±0.2 mm, and the width of the phase adjustment trace is 7±0.1 mm.

[0015] Optionally, the length of the first gain trace is 35.7±0.2 mm, and the length of the second gain trace is 35.2±0.2 mm.

[0016] The utility model also discloses an antenna, including a grounding line, a radiating line, a phase adjustment line and a gain line; the grounding line includes a grounding body, a first grounding arm and a second grounding arm; the radiating line includes a radiating body, a first radiating arm and a second radiating arm;

[0017] The grounding body and the radiating body are arranged opposite to each other, the first grounding arm and the second grounding arm are respectively connected to the two ends of the grounding body and both extend toward a side away from the radiating body; the first radiating arm and the second radiating arm are respectively connected to the two ends of the radiating body and both extend toward a side away from the grounding body; the phase adjustment line is located between the first radiating arm and the second radiating arm and is connected to the radiating body; the phase adjustment line is provided with a bent section;

[0018] The gain trace is located on the side of the radiating trace away from the ground trace; the gain trace includes a first gain trace, a second gain trace, a third gain trace, and a connecting trace; the first gain trace and the second gain trace are arranged opposite to each other, the connecting trace is located between the first gain trace and the second gain trace, and respectively connects the first gain trace and the second gain trace; the phase adjustment trace is connected to the connecting trace; the third gain trace is connected to the side of the connecting trace away from the phase adjustment trace; the length of the third gain trace is 26.5±0.2mm;

[0019] The length of the first ground arm is 28.5±0.2mm, and the length of the second ground arm is 29.5±0.2mm; the length of the first radiation arm and the second radiation arm are both 20±0.2mm, and the width of the phase adjustment trace is 7±0.1mm; the length of the first gain trace is 35.7±0.2mm, and the length of the second gain trace is 35.2±0.2mm.

[0020] The utility model also discloses a circuit board, comprising a board body and the above antenna; the antenna is arranged on the board body.

[0021] The utility model also discloses an external wireless network card, which comprises the above-mentioned circuit board.

[0022] Compared with the prior art, the beneficial effect of the antenna provided by the embodiment of the present invention is that: the antenna of the present invention is provided with a grounding trace, a radiating trace and a phase adjustment trace, wherein the grounding trace includes a grounding body, a first grounding arm and a second grounding arm, the radiating trace includes a radiating body, a first radiating arm and a second radiating arm, and the phase adjustment trace is located between the first radiating arm and the second radiating arm and is connected to the radiating body, wherein the grounding body, the first grounding arm and the second grounding arm of the antenna are coupled together to generate the resonant frequency of the 2.4G frequency band and the 5G low frequency, the phase adjustment trace is the phase shifter part of the antenna, which plays a role in adjusting the phase of the antenna, the radiating body, the first radiating arm, the second radiating arm and the phase adjustment trace are coupled to generate the 5G high frequency part and the 6G frequency band, and can also strengthen the resonant frequency of the 2.4G and 5G low frequencies. Therefore, the present invention can support the three frequency bands of 2.4GHz, 5GHz and 6GHz, improve the signal coverage frequency band of the antenna, and the antenna also has a very significant improvement in the long-distance signal transmission capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 Schematic diagram of an antenna according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of a circuit board according to an embodiment of the present invention.

[0026] The reference numerals in the figures are:

[0027] 1. Ground trace; 11. Ground body; 111. Antenna ground feed welding point; 12. First ground arm; 13. Second ground arm; 2. Radiating trace; 21. Radiating body; 211. Antenna electric feed welding point; 22. First radiating arm; 23. Second radiating arm; 3. Phase adjustment trace; 31. Bend section; 4. Gain trace; 41. First gain trace; 42. Second gain trace; 43. Connecting trace; 44. Third gain trace; 441. First trace section; 442. Second trace section; 1000. Antenna; 2000. Board. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0029] The present invention provides an antenna 1000, such as Figure 1 As shown, the antenna 1000 includes a ground trace 1, a radiation trace 2 and a phase adjustment trace 3; the ground trace 1 includes a ground body 11, a first ground arm 12 and a second ground arm 13, and the radiation trace 2 includes a radiation body 21, a first radiation arm 22 and a second radiation arm 23.

[0030] The grounding body 11 and the radiating body 21 are arranged opposite each other. The first grounding arm 12 and the second grounding arm 13 are respectively connected to the ends of the grounding body 11 and both extend away from the radiating body 21. The first radiating arm 22 and the second radiating arm 23 are respectively connected to the ends of the radiating body 21 and both extend away from the grounding body 11. The phase adjustment trace 3 is located between the first radiating arm 22 and the second radiating arm 23 and is connected to the radiating body 21.

[0031] The antenna 1000 of the present invention is provided with a grounding trace 1, a radiating trace 2 and a phase adjustment trace 3. The grounding trace 1 includes a grounding body 11, a first grounding arm 12 and a second grounding arm 13. The radiating trace 2 includes a radiating body 21, a first radiating arm 22 and a second radiating arm 23. The phase adjustment trace 3 is located between the first radiating arm 22 and the second radiating arm 23 and is connected to the radiating body 21. The grounding body 11, the first grounding arm 12 and the second grounding arm 13 of the antenna 1000 are coupled together to generate the resonant frequency of the 2.4G frequency band and the 5G low frequency. The phase adjustment trace 3 is the phase shifter part of the antenna 1000, which plays a role in adjusting the phase of the antenna 1000. The radiating body 21, the first radiating arm 22, the second radiating arm 23 and the phase adjustment trace 3 are coupled to generate the 5G high frequency part and the 6G frequency band, and can also enhance the resonant frequency of the 2.4G and 5G low frequencies. Therefore, the present invention can support three frequency bands of 2.4 GHz, 5 GHz and 6 GHz, improve the signal coverage frequency band of the antenna 1000, and the antenna 1000 also has a very significant improvement in the long-distance signal transmission capability.

[0032] Specifically, the grounding body 11 is provided with a ground feed soldering point 111 for the antenna 1000, and the radiating body 21 is provided with a power feed soldering point 211 for the antenna 1000. The antenna 1000 of the present invention can be used in external network cards such as USB dongle wireless network cards. The antenna 1000 is printed on a circuit board and can be made of materials such as copper. The circuit board can be made of Rogers 4835 high-frequency board material, which has a dielectric constant of 3.48 and a loss tangent of 0.0037. Compared with ordinary FR-4 dielectric substrates, it has lower signal transmission loss in high-frequency circuits and can meet the high gain and low loss requirements of WiFi7 in the high-frequency portion.

[0033] Specifically, the length L1 of the first ground arm 12 is 28.5±0.2mm, and the length L2 of the second ground arm 13 is 29.5±0.2mm. The length L3 of the first radiating arm 22 and the length L4 of the second radiating arm 23 are both 20±0.2mm. The width W1 of the phase adjustment trace 3 is 7±0.1mm. Within this length and width range, the antenna 1000 provides more stable signals in the 2.4GHz, 5GHz, and 6GHz frequency bands, and has superior long-distance transmission capabilities.

[0034] Furthermore, the phase adjustment trace 3 is provided with a bend section 31. In this solution, the bend section 31 is provided on the phase adjustment trace 3 to increase the area and improve the phase adjustment effect of the antenna 1000. Specifically, the bend section 31 bends and extends in the length direction of the phase adjustment trace 3.

[0035] Antenna 1000 also includes a gain trace 4 located on the side of radiating trace 2 away from ground trace 1. Gain trace 4 includes a first gain trace 414, a second gain trace 424, and a connecting trace 43. First gain trace 414 and second gain trace 424 are arranged opposite each other, with connecting trace 43 located between and connecting first gain trace 414 and second gain trace 424, respectively. Phase adjustment trace 3 is connected to connecting trace 43. The arrangement of first gain trace 414 and second gain trace 424 increases the gain of antenna 1000.

[0036] Specifically, the length L5 of the first gain trace 414 is 35.7±0.2 mm, and the length L6 of the second gain trace 424 is 35.2±0.2 mm. When the second gain trace 424 is within this length range, the 2.4G, 5G, and 6G band signals of the antenna 1000 are more stable, and the long-distance transmission capability is more superior.

[0037] Furthermore, gain trace 4 also includes a third gain trace 444, which is connected to the side of connecting trace 43 away from phase adjustment trace 3; the length L7 of third gain trace 444 is 26.5±0.2mm. As the head that feeds antenna 1000, third gain trace 444 serves to amplify the electrical signal, evenly distribute the area, and improve the efficiency of antenna 1000. Specifically, third gain trace 444 includes a first trace portion 441 and a second trace portion 442; the first trace portion 441 is connected to the side of connecting trace 43 away from phase adjustment trace 3, and the second trace portion 442 is connected to the first trace portion 441. The width of the first trace portion 441 gradually increases from one end near connecting trace 43 to the other end, and the second trace portion 442 is circular.

[0038] like Figure 2 As shown, the present invention also discloses a circuit board, comprising a board body 2000 and the aforementioned antenna 1000; the antenna 1000 is disposed on the board body 2000. The board body can be made of Rogers 4835 high-frequency board. Since this circuit board includes the same antenna 1000 as described above, it also has the same structure and technical effects as the aforementioned antenna 1000, and therefore will not be further described here.

[0039] The utility model also discloses an external wireless network card, comprising the above-mentioned circuit board. Since the external wireless network card has the same circuit board as the above-mentioned circuit board, it also has the same structure and technical effects as the above-mentioned circuit board, which will not be described in detail here.

[0040] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An antenna, characterized in that: It includes a grounding line, a radiation line and a phase adjustment line; the grounding line includes a grounding body, a first grounding arm and a second grounding arm, and the radiation line includes a radiation body, a first radiation arm and a second radiation arm; The grounding body and the radiating body are arranged opposite to each other, the first grounding arm and the second grounding arm are respectively connected to two ends of the grounding body and both extend toward a side away from the radiating body; the first radiating arm and the second radiating arm are respectively connected to two ends of the radiating body and both extend toward a side away from the grounding body; The phase adjustment line is located between the first radiation arm and the second radiation arm, and is connected to the radiation body.

2. The antenna according to claim 1, wherein The phase adjustment wiring is provided with a bending section.

3. The antenna according to claim 1, wherein The antenna further includes a gain trace located on a side of the radiation trace away from the ground trace; the gain trace includes a first gain trace, a second gain trace, and a connecting trace; The first gain trace and the second gain trace are arranged opposite to each other, the connecting trace is located between the first gain trace and the second gain trace and respectively connects the first gain trace and the second gain trace; the phase adjustment trace is connected to the connecting trace.

4. The antenna according to claim 3, wherein: The gain trace further includes a third gain trace, which is connected to a side of the connection trace away from the phase adjustment trace; and the length of the third gain trace is 26.5±0.2 mm.

5. The antenna according to claim 4, characterized in that The third gain trace includes a first trace portion and a second trace portion; the first trace portion is connected to a side of the connection trace away from the phase adjustment trace, and the second trace portion is connected to the first trace portion; The width of the first routing portion gradually increases from one end close to the connecting routing portion to the other end, and the second routing portion is circular.

6. The antenna according to any one of claims 1 to 5, characterized in that: The length of the first grounding arm is 28.5±0.2 mm, and the length of the second grounding arm is 29.5±0.2 mm; the length of the first radiation arm and the second radiation arm are both 20±0.2 mm, and the width of the phase adjustment line is 7±0.1 mm.

7. The antenna according to any one of claims 3 to 5, characterized in that: The length of the first gain trace is 35.7±0.2 mm, and the length of the second gain trace is 35.2±0.2 mm.

8. An antenna, characterized in that: It includes a grounding line, a radiation line, a phase adjustment line and a gain line; the grounding line includes a grounding body, a first grounding arm and a second grounding arm, and the radiation line includes a radiation body, a first radiation arm and a second radiation arm; The grounding body and the radiating body are arranged opposite to each other, the first grounding arm and the second grounding arm are respectively connected to the two ends of the grounding body and both extend toward a side away from the radiating body; the first radiating arm and the second radiating arm are respectively connected to the two ends of the radiating body and both extend toward a side away from the grounding body; the phase adjustment line is located between the first radiating arm and the second radiating arm and is connected to the radiating body; the phase adjustment line is provided with a bent section; The gain trace is located on a side of the radiating trace away from the ground trace; the gain trace includes a first gain trace, a second gain trace, a third gain trace and a connecting trace; the first gain trace and the second gain trace are arranged opposite to each other, the connecting trace is located between the first gain trace and the second gain trace, and respectively connects the first gain trace and the second gain trace; the phase adjustment trace is connected to the connecting trace; the third gain trace is connected to a side of the connecting trace away from the phase adjustment trace; the length of the third gain trace is 26.5±0.2mm; The length of the first ground arm is 28.5±0.2mm, and the length of the second ground arm is 29.5±0.2mm; the length of the first radiation arm and the second radiation arm are both 20±0.2mm, and the width of the phase adjustment trace is 7±0.1mm; the length of the first gain trace is 35.7±0.2mm, and the length of the second gain trace is 35.2±0.2mm.

9. A circuit board, characterized in that: The invention comprises a plate body and the antenna according to any one of claims 1 to 7 or claim 8; the antenna is arranged on the plate body.

10. An external wireless network card, characterized in that: Including the circuit board according to claim 9.

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