Small slot antenna, slot antenna assembly and electronic product

Abstract

The utility model relates to the technical field of electronic equipment antennas, in particular to a small slot antenna, a slot antenna assembly and an electronic product. An antenna wire is arranged in the antenna substrate, and the antenna wire comprises an antenna monopole and an antenna parasitic branch knot; the antenna monopole and the antenna parasitic branch knot are arranged at an interval along the length direction of the antenna routing; the antenna monopole is provided with an extension arm facing the antenna parasitic branch; the antenna parasitic branch knot is provided with a bending arm facing the antenna monopole. The slot antenna assembly and the electronic product both comprise the small slot antenna, and both have the beneficial effects of being excellent in antenna performance, good in main and auxiliary standing waves, excellent in antenna isolation, simple in structural design and suitable for all-metal shell scenes.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment antennas, and in particular to a small slot antenna, a slot antenna assembly and an electronic product. Background Art

[0002] As users have higher and higher requirements for the appearance and texture of electronic products, metal materials are widely used in electronic products. As a result, there is no space on the surface of many electronic products for antenna clearance, and the space for antennas is severely compressed.

[0003] Taking laptop computers as an example, laptop computers are currently moving towards a design direction of full metal cover, side shell, and bottom shell. How to design a high-performance and competitive antenna solution for laptop terminals with full metal cover, side shell, and bottom shell is becoming more and more important. When the cover, side shell, and bottom shell of the laptop computer are metallized over a large area, the antenna signal is either low in efficiency due to the poor all-metal environment, or a large area of ​​window is required in the antenna clearance area. In short, when the notebook case is fully metal, the traditional antenna solution will not only increase the complexity of the antenna design, but also greatly reduce the antenna performance.

[0004] Therefore, there is an urgent need for an antenna with a new structure on the market to solve the problem in the prior art that large-area metallization of electronic products leads to increased complexity in antenna design and limited performance. Utility Model Content

[0005] The embodiments of the present disclosure provide a small slot antenna, a slot antenna assembly and an electronic product, in order to solve the problem in the prior art that large-area metallization of electronic products leads to increased antenna design complexity and limited performance.

[0006] The small slot antenna provided by the embodiment of the present disclosure includes an antenna substrate;

[0007] The antenna substrate is provided with an antenna wiring, and the antenna wiring includes an antenna monopole and an antenna parasitic branch;

[0008] The antenna monopole and the antenna parasitic branch are arranged at intervals along the length direction of the antenna wiring;

[0009] The antenna monopole has an extension arm toward the antenna parasitic branch;

[0010] The antenna parasitic branch has a bent arm facing the antenna monopole.

[0011] In one possible implementation manner, the antenna trace further includes an antenna edge portion attached to a length corner of the antenna substrate;

[0012] The antenna monopole and the antenna parasitic branch are respectively arranged on a side surface of the antenna substrate and are respectively connected to the antenna edge portion.

[0013] In one possible implementation manner, the extension arm is provided with an inclined section and a straight section extending toward the parasitic branch of the antenna, and the extension length of the straight section is at least 2 mm.

[0014] In one possible implementation manner, the bending arm is provided with a vertical section extending toward the antenna monopole, and an extension length of the vertical section is at least 3.4 mm.

[0015] In one possible implementation manner, the length*width*thickness of the antenna trace does not exceed 40 mm*5 mm*0.4 mm.

[0016] In one possible implementation manner, the length*width*thickness of the antenna substrate does not exceed 65 mm*5 mm*0.4 mm.

[0017] In addition, the embodiment of the present disclosure further provides a slot antenna assembly, which includes a cover shell and the above-mentioned small slot antenna;

[0018] The cover shell is provided with a hollow gap corresponding to the antenna wiring.

[0019] In one possible implementation manner, the center point of the hollow gap corresponds to the center point of the antenna trace;

[0020] And the length*width of the hollow gap does not exceed 44mm*3mm.

[0021] In one possible implementation manner, the cover shell is provided with two hollow gaps spaced apart along its length direction;

[0022] One antenna substrate is respectively disposed corresponding to each of the two hollow gaps, and the two antenna substrates are mirror-symmetrical to each other.

[0023] In addition, an embodiment of the present disclosure further provides an electronic product, which includes a device body and the above-mentioned slot antenna assembly;

[0024] Wherein, the cover shell is the outer shell of the device body.

[0025] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0026] The small slot antenna provided by the embodiment of the present disclosure adopts the structure of "antenna monopole + antenna parasitic branch", which makes the performance of the small slot antenna superior and ensures the good performance of the main and secondary standing waves of the small slot antenna. The small slot antenna has the beneficial effects of superior performance, good main and secondary standing waves, excellent antenna isolation, simple structural design, and is suitable for all-metal shell scenarios.

[0027] In addition, the embodiments of the present disclosure provide a slot antenna assembly and an electronic product, both of which include the above-mentioned small slot antenna and can achieve the same beneficial effects.

[0028] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0030] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0031] Figure 1 A three-dimensional diagram of a small slot antenna provided by an embodiment of the present disclosure is shown;

[0032] Figure 2 A front view of a small slot antenna provided by an embodiment of the present disclosure is shown;

[0033] Figure 3 A stereoscopic view of a slot antenna assembly provided by an embodiment of the present disclosure is shown.

[0034] Explanation of the numbers in the figure: 1. antenna substrate; 2. antenna routing; 21. antenna monopole; 211. extension arm; 211a. inclined section; 211b. straight section; 22. antenna parasitic branch; 221. bent arm; 221a. vertical section; 23. antenna edge; 3. cover shell; 31. hollow gap. DETAILED DESCRIPTION

[0035] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0036] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0037] Combination Figure 1 and Figure 2As shown, an embodiment of the present disclosure provides a small slot antenna, which includes an antenna substrate 1; an antenna trace 2 is arranged in the antenna substrate 1, and the antenna trace 2 includes an antenna monopole 21 and an antenna parasitic branch 22; the antenna monopole 21 and the antenna parasitic branch 22 are arranged at intervals along the length direction of the antenna trace 2; the antenna monopole 21 has an extension arm 211 facing the antenna parasitic branch 22; the antenna parasitic branch 22 has a bending arm 221 facing the antenna monopole 21.

[0038] The small slot antenna can be specifically but not limited to being used as an antenna in a notebook computer, which is taken as an example for explanation.

[0039] The small slot antenna is suitable for use in scenarios where the cover, side shell, and bottom shell of a laptop computer are all metal. When actually installed and used, the small slot antenna adopts the structural form of "antenna monopole 21 + antenna parasitic branch 22", which makes the performance of the small slot antenna superior, ensuring that the main and secondary standing waves of the small slot antenna are good and the antenna isolation is excellent. And only a slot slightly smaller than the size of the antenna substrate 1 is opened in the full metal shell of the laptop computer to meet the clearance requirements of the small slot antenna.

[0040] In summary, the small slot antenna provided by the embodiments of the present disclosure has the beneficial effects of superior performance, good primary and secondary standing waves, excellent antenna isolation, simple structural design, and suitability for all-metal shell scenarios.

[0041] In one embodiment, the antenna trace 2 further includes an antenna edge portion 23 attached to the length corner of the antenna substrate 1 ; the antenna monopole 21 and the antenna parasitic branch 22 are respectively disposed on one side of the antenna substrate 1 and are respectively connected to the antenna edge portion 23 .

[0042] Specific, combined Figure 1 To further explain in detail, the antenna trace 2 is also provided with an antenna edge portion 23 attached to the length corner of the antenna substrate 1, and the antenna monopole 21 and the antenna parasitic branch 22 are respectively arranged in one side plate surface of the antenna substrate 1 and are respectively connected to the antenna edge portion 23, so that the surrounding wall installation space of the antenna substrate 1 can be fully utilized, the antenna monopole 21 and the antenna parasitic branch 22 can be directly processed in the plate body of the antenna substrate 1 by using a laser direct forming process, and the antenna edge portion 23 can be specifically arranged as an L-shaped plate fixedly wrapped at the length corner of the antenna substrate 1.

[0043] The specific arrangement of the antenna edge portion 23 has the beneficial effects of simple structure, being able to fully utilize the installation space on the peripheral wall of the antenna substrate 1, and further optimizing the size of the small slot antenna.

[0044] In one embodiment, the extension arm 211 is provided with an inclined section 211 a and a straight section 211 b extending toward the antenna parasitic branch 22 , and the extension length of the straight section 211 b is at least 2 mm.

[0045] Specific, combined Figure 2 To further explain in detail, the extension arm 211 is specifically configured to be an inclined section 211a and a straight section 211b extending toward the antenna parasitic branch 22, and the inclined section 211a and the straight section 211b can specifically present a "7" shape, and the extension length of the straight section 211b is limited to at least 2 mm, which can ensure the standing wave performance of the antenna monopole 21 and better widen the low-frequency bandwidth of the antenna.

[0046] The specific configuration of the extension arm 211 has the beneficial effects of simple structure, compact spatial form and good standing wave performance.

[0047] In one possible implementation, the bending arm 221 is provided with a vertical section 221 a extending toward the antenna monopole 21 , and the extension length of the vertical section 221 a is at least 3.4 mm.

[0048] Specific, combined Figure 2 To further explain in detail, the bending arm 221 is specifically configured to have a vertical section 221a extending toward the antenna monopole 21. The vertical section 221a and the bending arm 221 can be specifically "L"-shaped, and the extension length of the vertical section 221a is limited to at least 3.4 mm, thereby ensuring the standing wave performance of the antenna parasitic branch 22.

[0049] The specific arrangement of the bending arm 221 mentioned above also has the beneficial effects of simple structure, compact spatial form and good standing wave performance.

[0050] In one possible implementation manner, the length*width*thickness of the antenna trace 2 does not exceed 40 mm*5 mm*0.4 mm.

[0051] The overall length*width*thickness of the antenna trace 2 is limited to no more than 40mm*5mm*0.4mm. This size specification can not only ensure that the structure of the antenna trace 2 is small and compact, but also ensure the superior performance of the antenna trace 2, so that the small slot antenna provided in the embodiment of the present disclosure has a more flexible application scenario, and the miniaturized structural layout can better avoid other components in electronic products.

[0052] In one possible implementation manner, the length*width*thickness of the antenna substrate 1 does not exceed 65 mm*5 mm*0.4 mm.

[0053] The overall length*width*thickness of the antenna substrate 1 is limited to no more than 65mm*5mm*0.4mm. This size specification not only ensures that the antenna trace 2 can be completely set in the antenna substrate 1, but also reserves installation connection points at both ends of the length direction of the antenna substrate 1. The size specification of the antenna substrate 1 can also ensure the smallness and compactness of the small slot antenna.

[0054] In addition, the embodiment of the present disclosure further provides a slot antenna assembly, which includes a cover shell 3 and the above-mentioned small slot antenna; a hollow slot 31 corresponding to the antenna trace 2 is opened in the cover shell 3.

[0055] Specific, combined Figure 3 To further explain in detail, the slot antenna assembly includes a cover shell 3 and the above-mentioned small slot antenna, which can achieve all the beneficial effects of the above-mentioned small slot antenna, and will not be repeated here.

[0056] In addition, a hollow gap 31 corresponding to the antenna trace 2 is provided in the cover shell 3, so that the hollow gap 31 can meet the clearance requirement of the above-mentioned small gap antenna, so that the cover shell 3 can be made of metal material which is more popular in current electronic products.

[0057] In one possible implementation manner, the center point of the hollow slot 31 corresponds to the center point of the antenna trace 2; and the length*width of the hollow slot 31 does not exceed 44mm*3mm.

[0058] The center point of the hollow slot 31 is made to correspond to the center point of the antenna trace 2, so as to ensure the maximum overlap between the hollow slot 31 and the antenna trace 2, and the length and width of the hollow slot 31 are limited to not more than 44mm*3mm, specifically 43.7mm*2.8mm, so as to ensure the compactness of the structure of the hollow slot 31.

[0059] In one embodiment, the cover shell 3 is provided with two hollow slits 31 spaced apart along its length direction; each of the two hollow slits 31 is provided with an antenna substrate 1 corresponding thereto, and the two antenna substrates 1 are mirror-symmetrical to each other.

[0060] Specific, combined Figure 3 To further explain in detail, two hollow slits 31 are spaced apart in the length direction of the cover shell 3, and an antenna substrate 1 is respectively provided in each of the two hollow slits 31, and the two antenna substrates 1 are mirror-symmetrical to each other, so that the antenna traces 2 in the two antenna substrates 1 can be mirror-set, thereby further improving the performance of the small slot antenna.

[0061] In addition, the embodiment of the present disclosure further provides an electronic product, which includes a device body and the above-mentioned slot antenna assembly; wherein the cover shell 3 is the outer shell of the device body.

[0062] The electronic product may specifically but not limited to be a laptop computer, a tablet computer, a mobile phone, etc. The electronic product includes the above-mentioned slot antenna assembly and can also achieve all the beneficial effects of the above-mentioned small slot antenna, which will not be repeated here.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A small slot antenna, characterized in that: It comprises an antenna substrate (1); An antenna wiring (2) is arranged in the antenna substrate (1), and the antenna wiring (2) comprises an antenna monopole (21) and an antenna parasitic branch (22); The antenna monopole (21) and the antenna parasitic branch (22) are arranged at intervals along the length direction of the antenna wiring (2); The antenna monopole (21) has an extension arm (211) facing the antenna parasitic branch (22); The antenna parasitic branch (22) has a bent arm (221) facing the antenna monopole (21).

2. The small slot antenna according to claim 1, characterized in that: The antenna trace (2) further comprises an antenna edge portion (23) attached to a length corner of the antenna substrate (1); The antenna monopole (21) and the antenna parasitic branch (22) are respectively arranged on a side surface of the antenna substrate (1), and are respectively connected to the antenna edge portion (23).

3. The small slot antenna according to claim 1, characterized in that: The extension arm (211) is provided with an inclined section (211a) and a straight section (211b) extending toward the antenna parasitic branch (22), and the extension length of the straight section (211b) is at least 2 mm.

4. The small slot antenna according to claim 1, characterized in that: The bending arm (221) is provided with a vertical section (221a) extending toward the antenna monopole (21), and the extension length of the vertical section (221a) is at least 3.4 mm.

5. The small slot antenna according to claim 1, wherein: The length*width*thickness of the antenna wiring (2) does not exceed 40mm*5mm*0.4mm.

6. The small slot antenna according to claim 1, characterized in that: The length*width*thickness of the antenna substrate (1) does not exceed 65 mm*5 mm*0.4 mm.

7. A slot antenna assembly, characterized in that: It comprises a cover shell (3) and the small slot antenna according to any one of claims 1 to 6; The cover shell (3) is provided with a hollow gap (31) corresponding to the antenna wiring (2).

8. The slot antenna assembly according to claim 7, characterized in that: The center point of the hollow gap (31) corresponds to the center point of the antenna trace (2); The length*width of the hollow gap (31) does not exceed 44mm*3mm.

9. The slot antenna assembly according to claim 7, characterized in that: The cover shell (3) is provided with two hollow slits (31) spaced apart along its length direction; One of the antenna substrates (1) is respectively disposed corresponding to each of the two hollow slits (31), and the two antenna substrates (1) are mirror-symmetrical to each other.

10. An electronic product, characterized in that: A device comprising a device body and a slot antenna assembly as described in any one of claims 7 to 9; Wherein, the cover shell (3) is the outer shell of the device body.

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