阅读说明：本技术 双频wifi外置天线及无线智能vr眼镜 (Dual-frenquency WIFI external antenna and wireless intelligent VR glasses ) 是由 郭佳伟 周凯淦 刘华涛 韦进 熊皓 韩振宇 黄烈云 杨培培 龙秋霖 陈晓茹 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种双频WIFI外置天线以及无线智能VR眼镜,包括天线辐射部、天线接地部以及用作安装基础的PCB基板,天线辐射部和天线接地部分别设于PCB基板的两侧,天线辐射部包括天线馈电线、低频辐射枝节以及高频辐射枝节,天线馈电线的第一端向下延伸至靠近PCB基板的底部边缘设置,天线馈电线的第二端与低频辐射枝节的第一端连接,低频辐射枝节的第二端向外延伸并弯折形成带有开口的围合空腔,高频辐射枝节设于围合空腔内且与低频辐射枝节连接。本发明的双频WIFI外置天线,在保证双频WIFI外置天线的性能的基础上有利于实现双频WIFI外置天线尺寸的小型化,便于用户携带和操作使用,提高了用户的体验感。(The invention discloses a dual-frequency WIFI external antenna and wireless intelligent VR glasses, which comprise an antenna radiation part, an antenna grounding part and a PCB substrate used as an installation base, wherein the antenna radiation part and the antenna grounding part are respectively arranged at two sides of the PCB substrate, the antenna radiation part comprises an antenna feeder line, a low-frequency radiation branch knot and a high-frequency radiation branch knot, a first end of the antenna feeder line extends downwards to be arranged close to the edge of the bottom of the PCB substrate, a second end of the antenna feeder line is connected with a first end of the low-frequency radiation branch knot, a second end of the low-frequency radiation branch knot extends outwards and is bent to form a closed cavity with an opening, and the high-frequency radiation branch knot is arranged in the closed cavity and is connected with the low-frequency radiation branch knot. The dual-frequency WIFI external antenna is beneficial to realizing the miniaturization of the size of the dual-frequency WIFI external antenna on the basis of ensuring the performance of the dual-frequency WIFI external antenna, is convenient for a user to carry, operate and use, and improves the experience of the user.)

1. A dual-frequency WIFI external antenna is characterized in that,

comprises an antenna radiation part, an antenna grounding part and a PCB substrate used as a mounting base, wherein the antenna radiation part and the antenna grounding part are respectively arranged at two sides of the PCB substrate,

the antenna radiation part comprises an antenna feeder line, a low-frequency radiation branch and a high-frequency radiation branch, wherein the first end of the antenna feeder line extends downwards to the edge of the bottom close to the PCB substrate, the second end of the antenna feeder line is connected with the first end of the low-frequency radiation branch, the second end of the low-frequency radiation branch extends outwards and is bent to form a closed cavity with an opening,

the high-frequency radiation branch knot is arranged in the enclosed cavity and connected with the low-frequency radiation branch knot.

2. The external antenna for dual-frequency WIFI according to claim 1,

the working range of the low-frequency radiation branch is 2.4-2.5 GHz, and the working range of the high-frequency radiation branch is 5.15-5.85 GHz.

3. The external antenna for dual-frequency WIFI according to claim 1,

the low-frequency radiation branch knot comprises a first connecting arm, a second connecting arm, a third connecting arm, a fourth connecting arm and a fifth connecting arm which are sequentially arranged, wherein the first connecting arm, the second connecting arm, the third connecting arm, the fourth connecting arm and the fifth connecting arm are connected and combined end to form a hook-shaped structure with an opening,

a second end of the antenna feed line is connected to the first connecting arm,

the high-frequency radiation branch knot is connected with the first connecting arm and is arranged in a closed cavity of the hook-shaped structure.

4. The external antenna for dual-frequency WIFI according to claim 3,

the first connecting arms and the fourth connecting arms are arranged at intervals along the height direction of the PCB substrate, and the first connecting arms and the fourth connecting arms are arranged along the width direction of the PCB substrate,

the second connecting arms and the fifth connecting arms are arranged at intervals along the width direction of the PCB substrate, and the second connecting arms and the fifth connecting arms are arranged along the height direction of the PCB substrate,

the first end of the fourth connecting arm is connected with the second connecting arm through the third connecting arm, and the second end of the fourth connecting arm is connected with the fifth connecting arm.

5. The external antenna for dual-frequency WIFI according to claim 4,

the high-frequency radiation branch knot comprises a first support leg arranged along the height direction of the PCB substrate and a second support leg arranged along the width direction of the PCB substrate, the second support leg is arranged on one side of the first support leg close to the opening,

the first end of the first support leg is connected with the first connecting arm, and the second end of the first support leg is connected with the second support leg.

6. The external antenna for dual-frequency WIFI according to claim 1,

the PCB substrate is provided with a first side face and a second side face which are oppositely arranged, the antenna radiation part is arranged on the first side face of the PCB substrate in a fitting mode, and the antenna grounding part is arranged on the second side face of the PCB substrate in a fitting mode.

7. The external antenna for dual-frequency WIFI according to claim 1,

the antenna grounding part is a plate-shaped structural body made of a copper plate.

8. The external antenna for dual-frequency WIFI according to claim 1,

an assembly clamping groove is inwards and concavely arranged at the middle position of the bottom of the PCB substrate,

the antenna feeder lines are arranged in axial symmetry along the central line of the PCB substrate, the first ends of the antenna feeder lines are provided with lead wires respectively positioned at two sides of the assembly clamping groove,

the antenna grounding part is arranged along the central line of the PCB substrate in an axial symmetry manner, and pins which are respectively positioned at two sides of the assembling clamping groove are arranged at the bottom of the antenna grounding part.

9. The external antenna for dual-frequency WIFI according to claim 1,

the PCB substrate is a polygonal body, the maximum height value of the PCB substrate is 31mm, and the maximum width value of the PCB substrate is 11 mm.

10. A wireless intelligent VR glasses is characterized in that,

comprising a connection terminal and the dual-frequency WIFI external antenna according to any one of claims 1 to 9,

the dual-frequency WIFI external antenna is arranged on the connecting joint in an inserting mode through the PCB substrate.

Technical Field

The invention relates to the technical field of wireless intelligent VR (virtual reality) glasses terminals, in particular to a dual-frequency WIFI external antenna. The invention further relates to wireless intelligent VR glasses.

Background

VR glasses are VR head-mounted display, virtual reality head-mounted display equipment. The VR head display utilizes the head-mounted display equipment to seal the vision and the hearing of people to the outside and guide a user to generate the feeling of the user in a virtual environment.

When the existing VR glasses terminal uses a built-in antenna, the performance of the VR glasses terminal is poor, and the user experience is insufficient; when using external antenna nature, the performance is excellent, can promote user's experience and feel, nevertheless because external antenna's setting leads to the whole size great, the user of being inconvenient for carries and uses.

Disclosure of Invention

The dual-frequency WIFI external antenna provided by the invention solves the technical problem that the VR glasses terminal is inconvenient to carry and use by a user due to the large size of the existing dual-frequency WIFI external antenna.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides an external antenna of dual-frenquency WIFI, including the antenna radiation portion, antenna ground connection portion and be used as the PCB base plate of installation basis, the both sides of PCB base plate are located respectively to antenna radiation portion and antenna ground connection portion, the antenna radiation portion includes the antenna feed line, low frequency radiation minor matters and high frequency radiation minor matters, the first end downwardly extending of antenna feed line is to the bottom edge setting that is close to the PCB base plate, the second end of antenna feed line is connected with the first end of low frequency radiation minor matters, the second end of low frequency radiation minor matters outwards extends and bending type has the open-ended and encloses the cavity, high frequency radiation minor matters is located and is enclosed in the cavity and be connected with low frequency radiation minor matters.

Furthermore, the working range of the low-frequency radiation branch is 2.4 to 2.5GHz, and the working range of the high-frequency radiation branch is 5.15 to 5.85 GHz.

Furthermore, the low-frequency radiation branch knot comprises a first connecting arm, a second connecting arm, a third connecting arm, a fourth connecting arm and a fifth connecting arm which are sequentially arranged, the first connecting arm, the second connecting arm, the third connecting arm, the fourth connecting arm and the fifth connecting arm are connected end to form a hook-shaped structure with an opening, the second end of the antenna feeder line is connected with the first connecting arm, and the high-frequency radiation branch knot is connected with the first connecting arm and is arranged in a closed cavity of the hook-shaped structure.

Furthermore, the first connecting arm and the fourth connecting arm are arranged at intervals along the height direction of the PCB substrate, the first connecting arm and the fourth connecting arm are arranged along the width direction of the PCB substrate, the second connecting arm and the fifth connecting arm are arranged at intervals along the width direction of the PCB substrate, the second connecting arm and the fifth connecting arm are arranged along the height direction of the PCB substrate, the first end of the fourth connecting arm is connected with the second connecting arm through the third connecting arm, and the second end of the fourth connecting arm is connected with the fifth connecting arm.

Furthermore, the high-frequency radiation branch knot comprises a first supporting leg arranged along the height direction of the PCB substrate and a second supporting leg arranged along the width direction of the PCB substrate, the second supporting leg is arranged on one side, close to the opening, of the first supporting leg, the first end of the first supporting leg is connected with the first connecting arm, and the second end of the first supporting leg is connected with the second supporting leg.

Furthermore, the PCB substrate is provided with a first side face and a second side face which are oppositely arranged, the antenna radiation part is attached to the first side face of the PCB substrate, and the antenna grounding part is attached to the second side face of the PCB substrate.

Further, the antenna ground is a plate-like structure made of a copper plate.

Furthermore, an assembly clamping groove is inwards and concavely arranged in the middle of the bottom of the PCB substrate, the antenna feed line is axially symmetrically arranged along the center line of the PCB substrate, lead wires which are respectively positioned at two sides of the assembly clamping groove are arranged at the first end of the antenna feed line, the antenna grounding part is axially symmetrically arranged along the center line of the PCB substrate, and pins which are respectively positioned at two sides of the assembly clamping groove are arranged at the bottom of the antenna grounding part.

Further, the PCB substrate is a polygonal body, the maximum height value of the PCB substrate is 31mm, and the maximum width value of the PCB substrate is 11 mm.

The invention also provides wireless intelligent VR glasses which comprise a connecting joint and the dual-frequency WIFI external antenna, wherein the dual-frequency WIFI external antenna is arranged on the connecting joint in an inserting mode through a PCB substrate.

The invention has the following beneficial effects:

the dual-frequency WIFI external antenna comprises an antenna radiation part, an antenna grounding part and a PCB substrate. The antenna radiation part and the antenna grounding part are respectively arranged on two side surfaces of the PCB substrate, so that the PCB substrate is used as an installation foundation for assembly and use, and the integral assembly and disassembly of the dual-frequency WIFI external antenna are facilitated; the antenna radiation part comprises an antenna feeder line, a low-frequency radiation branch and a high-frequency radiation branch, and the low-frequency branch surrounds the high-frequency branch, so that the bandwidth can be increased through coupling, a certain electric length can be reduced, and the size of the dual-frequency WIFI external antenna is reduced, the size of the dual-frequency WIFI external antenna is 1/2 or 1/3 of the existing external WIFI antenna, and VSWR in the bandwidth is less than 2. The dual-frequency WIFI external antenna is beneficial to realizing the miniaturization of the size of the dual-frequency WIFI external antenna on the basis of ensuring the performance of the dual-frequency WIFI external antenna, is convenient for a user to carry, operate and use, and improves the experience of the user.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is one of schematic structural diagrams of a dual-band WIFI external antenna according to a preferred embodiment of the present invention;

fig. 2 is a second schematic structural diagram of the dual-band WIFI external antenna according to the preferred embodiment of the present invention.

Illustration of the drawings:

10. a dual-frequency WIFI external antenna; 11. an antenna radiation section; 111. an antenna feed line; 112. a low frequency radiating stub; 113. high-frequency radiation branches; 114. enclosing a cavity; 12. an antenna ground section; 13. a PCB substrate; 131. and installing a clamping groove.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

Fig. 1 is one of schematic structural diagrams of a dual-band WIFI external antenna according to a preferred embodiment of the present invention; fig. 2 is a second schematic structural diagram of the dual-band WIFI external antenna according to the preferred embodiment of the present invention.

As shown in fig. 1 and fig. 2, the dual-band WIFI external antenna 10 of this embodiment includes an antenna radiation portion 11, an antenna ground portion 12, and a PCB substrate 13 serving as an installation base, where the antenna radiation portion 11 and the antenna ground portion 12 are respectively disposed on two sides of the PCB substrate 13, the antenna radiation portion 11 includes an antenna feeder 111, a low-frequency radiation branch 112, and a high-frequency radiation branch 113, a first end of the antenna feeder 111 extends downward to a position close to a bottom edge of the PCB substrate 13, a second end of the antenna feeder 111 is connected to a first end of the low-frequency radiation branch 112, a second end of the low-frequency radiation branch 112 extends outward and bends to form a closed cavity 114 with an opening, and the high-frequency radiation branch 113 is disposed in the closed cavity 114 and connected to the low-frequency radiation branch 112.

The dual-frequency WIFI external antenna 10 comprises an antenna radiation part 11, an antenna grounding part 12 and a PCB substrate 13. The antenna radiation part 11 and the antenna grounding part 12 are respectively arranged on two side surfaces of the PCB substrate 13, so that the PCB substrate 13 is used as an installation foundation for assembly and use, and the integral assembly and disassembly of the dual-frequency WIFI external antenna 10 are facilitated; the antenna radiation part 11 comprises an antenna feeder 111, a low-frequency radiation branch 112 and a high-frequency radiation branch 113, and the high-frequency branch is surrounded by the low-frequency branch, so that the bandwidth can be increased through coupling, a certain electrical length can be reduced, and the size of the dual-frequency WIFI external antenna 10 is reduced, the size of the dual-frequency WIFI external antenna 10 is 1/2 or 1/3 of the size of the existing external WIFI antenna, and VSWR in the bandwidth is less than 2. The dual-frequency WIFI external antenna 10 is beneficial to realizing the miniaturization of the size of the dual-frequency WIFI external antenna 10 on the basis of ensuring the performance of the dual-frequency WIFI external antenna 10, is convenient for a user to carry, operate and use, and improves the experience of the user.

It is understood that the PCB substrate 13 may be a plate-shaped body made of the material of rogers 4350, and the first end of the antenna feeding line 111 extends downward to be disposed near the bottom edge of the PCB substrate 13 so as to facilitate the communication connection of the antenna feeding line 111 at the bottom of the PCB substrate 13; the second end of the low-frequency radiation branch 112 extends outwards and is bent to form an enclosed cavity 114 with an opening, and the opening is arranged to prevent the low-frequency radiation branch 112 and the high-frequency radiation branch 113 from interfering with each other; the antenna feeder 111 may be arranged straight in the height direction of the PCB substrate 13, or may be arranged bent in the height direction of the PCB substrate 13. Specifically, in the present embodiment, a first end of the antenna feed line 111 extends downward to be disposed near a bottom edge of the PCB substrate 13, and a second end of the antenna feed line 111 extends upward to a middle or upper portion of the PCB substrate 13.

Optionally, in order to reduce the size of the dual-band WIFI external antenna 10, the outer edge of the second end of the low-frequency radiation branch 112 is flush with the outer edge of the substrate.

Further, the working range of the low-frequency radiation branch 112 is 2.4 to 2.5GHz, and the working range of the high-frequency radiation branch 113 is 5.15 to 5.85 GHz.

Referring to fig. 1 again, further, the low-frequency radiation branch 112 includes a first connecting arm, a second connecting arm, a third connecting arm, a fourth connecting arm, and a fifth connecting arm, which are sequentially arranged, the first connecting arm, the second connecting arm, the third connecting arm, the fourth connecting arm, and the fifth connecting arm are connected end to form a hook structure with an opening, the second end of the antenna feeder 111 is connected with the first connecting arm, and the high-frequency radiation branch 113 is connected with the first connecting arm and is disposed in a surrounding cavity 114 of the hook structure. It can be understood that the first connecting arm, the second connecting arm, the third connecting arm, the fourth connecting arm, the fifth connecting arm and the antenna feed line 111 are in the same plane, the second end of the antenna feed line 111 is connected to the end of the first connecting arm away from the second connecting arm, and the high-frequency radiation branch 113 is connected to the middle of the first connecting arm.

Further, first linking arm and fourth linking arm are arranged along PCB base plate 13's direction of height interval, and first linking arm and fourth linking arm all lay along PCB base plate 13's width direction, and second linking arm and fifth linking arm are arranged along PCB base plate 13's direction of width interval, and second linking arm and fifth linking arm all lay along PCB base plate 13's direction of height, and the first end of fourth linking arm is passed through the third linking arm and is connected with the second linking arm, and the second end of fourth linking arm is connected with the fifth linking arm. In this embodiment, the first connecting arm and the fourth connecting arm are arranged in parallel, the second connecting arm and the fifth connecting arm are arranged in parallel, and the third connecting arm is arranged along an oblique direction, so that the outer edge of the second end of the low-frequency radiation branch 112 is arranged in parallel and level with the outer edge of the substrate.

Further, the high-frequency radiation branch 113 includes a first supporting leg disposed along the height direction of the PCB substrate 13 and a second supporting leg disposed along the width direction of the PCB substrate 13, the second supporting leg is disposed on one side of the first supporting leg close to the opening, the first end of the first supporting leg is connected to the first connecting arm, and the second end of the first supporting leg is connected to the second supporting leg. The second support leg is arranged on one side of the first support leg close to the opening, so that interference of the low-frequency radiation branch 112 is avoided.

Further, the PCB substrate 13 has a first side and a second side which are oppositely disposed, the antenna radiation portion 11 is attached to the first side of the PCB substrate 13, and the antenna ground portion 12 is attached to the second side of the PCB substrate 13. Alternatively, in this embodiment, the antenna radiation part 11 may be embedded on the first side of the PCB substrate 13.

Referring to fig. 2 again, the antenna ground 12 is a plate-shaped structure made of a copper plate.

Furthermore, an assembly slot is concavely arranged at the middle position of the bottom of the PCB substrate 13, the antenna feed line 111 is arranged axially symmetrically along the center line of the PCB substrate 13, the first end of the antenna feed line 111 is provided with lead wires respectively positioned at two sides of the assembly slot, the antenna ground part 12 is arranged axially symmetrically along the center line of the PCB substrate 13, and the bottom of the antenna ground part 12 is provided with pins respectively positioned at two sides of the assembly slot. Specifically, in the present embodiment, the first end of the antenna feed line 111 is connected to the outside through a lead wire, and the antenna ground 12 is connected to the outside through a pin.

Further, the PCB substrate 13 is a polygonal body, the maximum height of the PCB substrate 13 is 31mm, and the maximum width of the PCB substrate 13 is 11 mm.

The invention also provides wireless intelligent VR glasses, which comprise a connecting joint and the dual-frequency WIFI external antenna 10, wherein the dual-frequency WIFI external antenna 10 is arranged on the connecting joint in an inserting mode through the PCB substrate 13. Optionally, the connection joint may be an SMA joint, and the antenna feed line 111 and the antenna ground 12 are both communicated with the terminal device through the SMA joint, so that a large number of VR eye terminal devices can be better adapted.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.