阅读说明：本技术 一种天线装置及电子设备 (Antenna device and electronic equipment ) 是由 郭湘荣 马晓娜 于 2021-08-30 设计创作，主要内容包括：本发明涉及PCB印制天线领域,公开一种天线装置及电子设备。一种天线装置包括：基板以及形成于基板上的多个天线本体,相邻两个天线本体之间设有第一阻隔缝隙；其中：基板上形成有接地金属层以及与每个天线本体对应的馈电点；天线本体包括第一天线分支和第二天线分支,第一天线分支的第一端与馈电点电连接,第二天线分支的第一端与馈电点电连接,第一天线分支的第二端与第二天线分支的第二端之间具有第一缝隙；接地金属层形成有用于与天线本体一一对应的地分支,地分支与第一天线分支之间具有第二缝隙,地分支与第二天线分支之间具有第三缝隙。本发明实现2.1GHz天线带宽的需求,且天线效率与隔离均达到使用的标准需求。(The invention relates to the field of Printed Circuit Board (PCB) antennas and discloses an antenna device and electronic equipment. An antenna device includes: the antenna comprises a substrate and a plurality of antenna bodies formed on the substrate, wherein a first blocking gap is formed between every two adjacent antenna bodies; wherein: a grounding metal layer and a feed point corresponding to each antenna body are formed on the substrate; the antenna body comprises a first antenna branch and a second antenna branch, wherein the first end of the first antenna branch is electrically connected with the feed point, the first end of the second antenna branch is electrically connected with the feed point, and a first gap is formed between the second end of the first antenna branch and the second end of the second antenna branch; the grounding metal layer is provided with grounding branches which are in one-to-one correspondence with the antenna body, a second gap is formed between the grounding branches and the first antenna branches, and a third gap is formed between the grounding branches and the second antenna branches. The invention realizes the requirement of 2.1GHz antenna bandwidth, and the antenna efficiency and isolation both meet the standard requirements of use.)

1. An antenna device, comprising: the antenna comprises a substrate and a plurality of antenna bodies formed on the substrate, wherein a first blocking gap is formed between every two adjacent antenna bodies; wherein:

a grounding metal layer and a feed point corresponding to each antenna body are formed on the substrate;

the antenna body comprises a first antenna branch and a second antenna branch, wherein the first end of the first antenna branch is electrically connected with the feeding point, the first end of the second antenna branch is electrically connected with the feeding point, and a first gap is formed between the second end of the first antenna branch and the second end of the second antenna branch;

the ground metal layer is provided with ground branches corresponding to the antenna bodies one to one, a second gap is formed between the ground branches and the first antenna branches, and a third gap is formed between the ground branches and the second antenna branches.

2. The antenna device according to claim 1, wherein the first slot is less than 1 mm; and/or the presence of a gas in the gas,

the second gap is smaller than 1 mm; and/or the presence of a gas in the gas,

the third gap is less than 1 mm.

3. The antenna device according to claim 1, characterized in that the first antenna branch and the second antenna branch share one feed point.

4. The antenna arrangement according to claim 3, characterized in that the first end of the second antenna branch is electrically connected with the first end of the first antenna branch.

5. The antenna arrangement according to claim 1, characterized in that the cross-section of the first antenna branch is L-shaped; alternatively, the first and second electrodes may be,

the cross section of the second antenna branch is L-shaped.

6. The antenna device according to claim 1, wherein the cross-section of the first antenna branch and the cross-section of the second antenna branch are both L-shaped, and the L-shaped opening of the cross-section of the first antenna branch is opposite to the L-shaped opening of the cross-section of the first antenna branch.

7. The antenna device according to claim 1, wherein the ground branch has a U-shaped cross section, and an opening of the U-shape faces the antenna body.

8. The antenna device of claim 7, wherein the ground branch comprises a first ground branch for mating with the first antenna branch and a second ground branch for mating with the second antenna branch, a first end of the first ground branch being electrically connected to a first end of the second ground branch, a second end of the first ground branch and a second end of the second ground branch having a second blocking gap therebetween.

9. The antenna device according to any one of claims 1-8, wherein there are two antenna bodies, and wherein the two antenna bodies are symmetrical with respect to the first blocking slot.

10. An electronic device, characterized in that it comprises an antenna arrangement according to any of claims 1-9.

Technical Field

The invention relates to the technical field of Printed Circuit Board (PCB) antennas, in particular to an antenna device and electronic equipment.

Background

The working frequency band of the WIFI6E module is 5.1 GHz-7.2 GHz, the working frequency band has 2.1GHz bandwidth, and for a PCB Printed antenna on a PCB (Printed Circuit Board) module, the common antenna design is difficult to meet the bandwidth requirement. Because the operating frequency band of the WIFI6E antenna is very wide, the general WIFI6E antenna design all adopts the external antenna mode, but if the external antenna is adopted, the cost of the antenna is very high and the space occupied by the antenna is also large.

Disclosure of Invention

The invention discloses an antenna device and electronic equipment, which are used for widening the frequency band bandwidth of WIFI6E, and the antenna efficiency and isolation meet the standard requirements of use.

In order to achieve the purpose, the invention provides the following technical scheme:

in a first aspect, the present invention provides an antenna device comprising: the antenna comprises a substrate and a plurality of antenna bodies formed on the substrate, wherein a first blocking gap is formed between every two adjacent antenna bodies; wherein:

a grounding metal layer and a feed point corresponding to each antenna body are formed on the substrate;

the antenna body comprises a first antenna branch and a second antenna branch, wherein the first end of the first antenna branch is electrically connected with the feeding point, the first end of the second antenna branch is electrically connected with the feeding point, and a first gap is formed between the second end of the first antenna branch and the second end of the second antenna branch;

the ground metal layer is provided with ground branches corresponding to the antenna bodies one to one, a second gap is formed between the ground branches and the first antenna branches, and a third gap is formed between the ground branches and the second antenna branches.

The antenna device realizes the requirement of 2.1GHz antenna bandwidth through the antenna design on a substrate such as a Printed Circuit Board (PCB), and the antenna efficiency and the isolation both meet the standard requirement of use. The invention is a dual-band dual-antenna design, namely 2.4 GHz-2.5 GHz and 5.1 GHz-7.2 GHz. Specifically, the first antenna branch is connected to the feed point, the second antenna branch is connected to the feed point, and the ground branch is connected to the ground metal layer. First gap has between first antenna branch and the second antenna branch, constitutes not closed loop, has the second gap between first antenna branch and the branch of ground, and a plurality of return circuits produce the radiation more than 5GHz, therefore can widen the frequency channel bandwidth of WIFI6E 5 GHz. A third slot is provided between the second antenna branch and the ground branch, constituting the radiation of the 2.4GHz antenna.

Optionally, the first gap is less than 1 mm; and/or the presence of a gas in the gas,

the second gap is smaller than 1 mm; and/or the presence of a gas in the gas,

the third gap is less than 1 mm.

Optionally, the first antenna branch and the second antenna branch share one feed point.

Optionally, the first end of the second antenna branch is electrically connected with the first end of the first antenna branch.

Optionally, the cross-section of the first antenna branch is L-shaped; alternatively, the first and second electrodes may be,

the cross section of the second antenna branch is L-shaped.

Optionally, the cross section of the first antenna branch and the cross section of the second antenna branch are both L-shaped, and the L-shaped opening of the cross section of the first antenna branch is opposite to the L-shaped opening of the cross section of the first antenna branch.

Optionally, the ground branch has a U-shaped cross section, and an opening of the U-shape faces the antenna body.

Optionally, the ground branch comprises a first ground branch for cooperating with the first antenna branch and a second ground branch for cooperating with the second antenna branch, a first end of the first ground branch is electrically connected with a first end of the second ground branch, and a second blocking gap is arranged between a second end of the first ground branch and a second end of the second ground branch.

Optionally, the number of the antenna bodies is two, and the two antenna bodies are symmetrical with respect to the first blocking slot.

In a second aspect, the present invention also provides an electronic device comprising an antenna arrangement as defined in any of the first aspects.

Drawings

Fig. 1 is a schematic structural diagram of an antenna device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the antenna body in fig. 1;

fig. 3 is a return loss diagram of an antenna apparatus according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a 2.45GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating simulation of a 2.45GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a 5.1GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating simulation of a 5.1GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a 6.5GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 9 is a schematic diagram illustrating simulation of a 6.5GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a 7GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 11 is a schematic diagram illustrating simulation of a 7GHz antenna radiation loop of an antenna apparatus according to an embodiment of the present invention;

fig. 12 is a schematic diagram of isolation between dual antennas according to an embodiment of the present invention.

Icon: 100-a substrate; 110-a ground metal layer; 120-a feed point; 130-ground branch; 131-first ground branch; 132-a second ground branch; 133-a second blocking slit; 200-an antenna body; 210-a first antenna branch; 220-a second antenna branch; 300-first blocking slit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first aspect, as shown in fig. 1 to 2, an embodiment of the present invention provides an antenna apparatus, including: the antenna comprises a substrate 100 and a plurality of antenna bodies 200 formed on the substrate 100, wherein a first blocking gap 300 is arranged between every two adjacent antenna bodies 200; wherein: a ground metal layer 110 and a feeding point 120 corresponding to each antenna body 200 are formed on the substrate 100; the antenna body 200 includes a first antenna branch 210 and a second antenna branch 220, a first end of the first antenna branch 210 is electrically connected to the feeding point 120, a first end of the second antenna branch 220 is electrically connected to the feeding point 120, and a first gap is formed between a second end of the first antenna branch 210 and a second end of the second antenna branch 220; the ground metal layer 110 is formed with ground branches 130 corresponding to the antenna body 200 one to one, a second gap is formed between the ground branch 130 and the first antenna branch 210, and a third gap is formed between the ground branch 130 and the second antenna branch 220.

The antenna device realizes the requirement of 2.1GHz antenna bandwidth through the antenna design on the substrate 100 such as a Printed Circuit Board (PCB), and the antenna efficiency and isolation both meet the standard requirement of use. The invention is a dual-band dual-antenna design, namely 2.4 GHz-2.5 GHz and 5.1 GHz-7.2 GHz. Specifically, the first antenna branch 210 is connected to the feeding point 120, the second antenna branch 220 is connected to the feeding point 120, and the ground branch 130 is connected to the ground metal layer 110. The first gap is formed between the first antenna branch 210 and the second antenna branch 220 to form an open loop, the second gap is formed between the first antenna branch 210 and the ground branch 130, and the plurality of loops generate radiation above 5GHz, so that the frequency band bandwidth of WIFI6E 5GHz can be widened. The second antenna branch 220 has a third slot with the ground branch 130, constituting the radiation of the 2.4GHz antenna.

Optionally, the first gap is less than 1 mm; and/or the second gap is less than 1 mm; and/or the third gap is less than 1 mm.

In one possible implementation manner, referring to fig. 2, the first antenna branch 210 is located between the second antenna branch 220 and the ground branch 130, and a first gap L is formed between the second end of the first antenna branch 210 and the second end of the second antenna branch 220₁And L is₁Less than 1mm, specifically 0.9mm, 0.8mm, 0.7mm, 0.6mm, 0.5mm, 0.4mm, 0.3mm, 0.2mm or 0.1 mm; a second gap L is provided between the first antenna branch 210 and the ground branch 130₂And L is₂Less than 1mm, specifically 0.9mm, 0.8mm, 0.7mm, 0.6mm, 0.5mm, 0.4mm, 0.3mm, 0.2mm or 0.1 mm; the second antenna branch 220 is close to the ground branch 130, and a third gap L is formed between the second antenna branch 220 and the ground branch 130₃And L is₃The thickness may be less than 1mm, specifically 0.9mm, 0.8mm, 0.7mm, 0.6mm, 0.5mm, 0.4mm, 0.3mm, 0.2mm or 0.1 mm. The first antenna branch 210 is close to the end of the second antenna branch 220 to form an unclosed loop, the end of the first antenna branch 210 is close to the end of the ground branch 130, and the multiple loops generate radiation above 5GHz, so that the bandwidth of the frequency band of WIFI6E 5GHz can be widened. The second antenna branch 220 is close to the ground branch 130 constituting the radiation of the 2.4GHz antenna. Therefore, the WIFI6E dual-band dual-antenna design provided by the embodiment of the invention is a dual-antenna design with 2.4 GHz-2.5 GHz and 5.1 GHz-7.2 GHz.

Optionally, the first antenna branch 210 shares one feeding point 120 with the second antenna branch 220.

In a possible implementation manner, the first antenna branch 210 and the second antenna branch 220 share one feeding point 120, which saves the design of the feeding point 120 and saves the occupied area of the antenna.

Optionally, the first end of the second antenna branch 220 is electrically connected with the first end of the first antenna branch 210.

In one possible implementation manner, referring to fig. 1 and fig. 2, the first antenna branch 210 and the second antenna branch 220 share one feeding point 120, and the first end of the second antenna branch 220 is connected to the first end of the first antenna branch 210, and the first end of the first antenna branch 210 is connected to the feeding point 120 on the substrate 100.

The specific structure (sectional shape) of the antenna body 200 is explained in detail below:

in the first structure, the cross section of the first antenna branch 210 is L-shaped, and the cross section of the second antenna branch 220 is not limited;

in the second structure, the cross section of the second antenna branch 220 is L-shaped, and the cross section of the first antenna branch 210 is not limited;

in the third configuration, the cross section of the first antenna branch 210 and the cross section of the second antenna branch 220 are both L-shaped, and the L-shaped opening of the cross section of the first antenna branch 210 is opposite to the L-shaped opening of the cross section of the first antenna branch 210, so that the occupied area of the antenna body 200 is saved.

Optionally, the ground branch 130 has a U-shaped cross section, and the opening of the U-shape faces the antenna body 200.

Optionally, the ground branch 130 includes a first ground branch 131 for mating with the first antenna branch 210 and a second ground branch 132 for mating with the second antenna branch 220, a first end of the first ground branch 131 is electrically connected with a first end of the second ground branch 132, and a second blocking gap 133 is provided between a second end of the first ground branch 131 and a second end of the second ground branch 132.

Optionally, there are two antenna bodies 200, and the two antenna bodies 200 are symmetrical with respect to the first blocking slot 300.

Referring to fig. 1, the two antenna bodies 200 are bilaterally symmetrical, but are not limited to being symmetrical, and are not limited to a dual-antenna design, that is, two antenna bodies 200, and may be a multi-antenna design with more than two antennas, that is, a plurality of antenna bodies 200, but a first isolation gap 300 is provided between two adjacent antenna bodies 200.

The return loss of the antenna is shown in fig. 3, where the abscissa represents frequency in GHz and the ordinate represents S-parameter in dB. It can be seen that the antenna has resonance at 2.4 GHz-2.5 GHz and 5.1 GHz-7.2 GHz, and the antenna meets the bandwidth of 2.1GHz at the frequency band of 5.1 GHz-7.2 GHz and exceeds the requirement of the bandwidth.

As shown in fig. 4 and 5, an antenna radiation loop between the second antenna branch 220 and the ground branch 130 is formed at 2.45GHz, i.e., between 2.4GHz and 2.5 GHz. As shown in fig. 6-11, the embodiments of the present invention form multiple antenna radiation loops above 5GHz, thereby widening the antenna bandwidth. Specifically, fig. 6 and 7 show a 5.1GHz antenna radiation loop, fig. 8 and 9 show a 6.5GHz antenna radiation loop, and fig. 10 and 11 show a 7GHz antenna radiation loop.

The isolation between the dual antennas is shown in fig. 12, where the abscissa represents frequency in GHz and the ordinate represents isolation in dB. Meanwhile, the two antennas also have better isolation, the isolation is less than-20 dB, and the performance of the two antennas is not lower than that of an external antenna.

Therefore, the embodiment of the invention has the advantages that the design of the antenna is printed on the PCB, the design cost is low, the space required by the design is small, the requirement of 2.1GHz antenna bandwidth is realized, and the antenna efficiency and the isolation meet the standard requirements of use.

In a second aspect, based on the same inventive concept, embodiments of the present invention further provide an electronic device, including any one of the antenna apparatuses in the first aspect.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.