Antenna structure

Abstract

The utility model discloses an antenna structure, which comprises a substrate, a first radiation section, a second radiation section and a third radiation section are arranged on the substrate, and one end of the first radiation section, one end of the second radiation section and one end of the third radiation section are converged at one position. The third radiation section and the first radiation section form a split ring structure, the length of the third radiation section is larger than that of the first radiation section, the second radiation section extends in the direction away from the center of the split ring structure, and the first radiation section and the second radiation section form a high-frequency radiation part of the antenna structure. The third radiation section and the second radiation section form a low-frequency radiation part of the antenna structure; the feed-in part is arranged at one end, far away from the first radiation section, of the second radiation section and is used for being connected to a feed-in source; and the grounding part is used for grounding. According to the technical scheme of the utility model, the bandwidth of the antenna can cover the 6GHz part of WiFi 6E.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to an antenna structure. Background Art

[0002] WiFi 6E adds a 6GHz frequency band (5925-7125MHz) based on WiFi6. The new 6GHz frequency band is 1.2GHz wide and can accommodate 7 160MHz frequency bands or 14 80MHz frequency bands. More frequency bands and larger bandwidth enable WiFi 6E to accommodate more devices and data throughput than WiFi6. The existing antenna bandwidth cannot cover the 6GHz part of WiFi 6E, making WiFi 6E unusable. Utility Model Content

[0003] The main purpose of the utility model is to provide an antenna structure, aiming to solve the problem that the antenna bandwidth cannot cover the 6GHz part of WiFi6E.

[0004] To achieve the above objectives, the antenna structure proposed by the utility model includes:

[0005] A substrate, wherein a first radiation section, a second radiation section and a third radiation section are provided on the substrate, one end of the first radiation section, one end of the second radiation section and one end of the third radiation section converge at one point, the third radiation section and the first radiation section form an open ring structure, and the length of the third radiation section is greater than the length of the first radiation section, the second radiation section extends in a direction away from the center of the open ring structure, the first radiation section and the second radiation section constitute a high-frequency radiation part of the antenna structure, and the third radiation section and the second radiation section constitute a low-frequency radiation part of the antenna structure; a feeding part, provided at one end of the second radiation section away from the first radiation section, and used to be connected to a feeding source; and

[0006] The grounding part is used for grounding.

[0007] Optionally, the high frequency band range of the antenna structure is 4.49 GHz to 8.1 GHz.

[0008] Optionally, the length of the first radiation segment ranges from 9.7 mm to 14 mm.

[0009] Optionally, the length of the first radiation segment is 11 mm, and the length of the second radiation segment is 12.95 mm.

[0010] Optionally, the low frequency band range of the antenna structure is 2.38 GHz to 2.57 GHz.

[0011] Optionally, the length of the third radiation segment ranges from 25 mm to 28.7 mm.

[0012] Optionally, the length of the third radiation segment is 25.7 mm, and the length of the second radiation segment is 12.95 mm.

[0013] Optionally, the substrate has a first board surface and a second board surface opposite to each other, the first radiation section, the second radiation section, the third radiation section and the feeding portion are all arranged on the first board surface, and the grounding portion is arranged on the second board surface;

[0014] And / or, the length, width and thickness of the substrate are 31 mm*26 mm*1.6 mm.

[0015] Optionally, a grounding area is further included, and the grounding portion is arranged in the grounding area.

[0016] Optionally, the first radiation section, the second radiation section, the third radiation section and the grounding area are all made of copper foil.

[0017] The technical solution of the present application adopts the microstrip feed line of a conventional antenna as part of the high-frequency radiation part and the low-frequency radiation part to improve the high-frequency bandwidth of the antenna structure performance of the present application, so that the bandwidth covers the frequency band where WIFI6E is located, thereby solving the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the first panel in the antenna structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of an embodiment of the second panel in the antenna structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of an embodiment of the first radiation section, the second radiation section, and the third radiation section in the antenna structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the test results of the antenna structure of the utility model.

[0023] Description of Figure Numbers:

[0024]

[0025]

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] The utility model provides an antenna structure.

[0032] In one embodiment of the utility model, the antenna structure includes a substrate 100, on which a first radiation section 200, a second radiation section 300 and a third radiation section 400 are provided, one end of the first radiation section 200, one end of the second radiation section 300 and one end of the third radiation section 400 converge at one point, and the intersection is as follows: Figure 1 In the portion shown by the middle dotted line, the third radiation section 400 and the first radiation section 200 form an open ring structure, and the length of the third radiation section 400 is greater than the length of the first radiation section 200, the second radiation section 300 extends in a direction away from the center of the open ring structure, the first radiation section 200 and the second radiation section 300 form a high-frequency radiation portion of the antenna structure, and the third radiation section 400 and the second radiation section 300 form a low-frequency radiation portion of the antenna structure; the feeding portion 500 is provided at one end of the second radiation section 300 away from the first radiation section 200 and is used to be connected to the feeding source; and the grounding portion 600 is used for grounding; in this embodiment, the first radiation section 200 and the second radiation section 300 form the antenna structure. The high-frequency radiation part of the line structure, the third radiation section 400 and the second radiation section 300 constitute the low-frequency radiation part of the antenna structure, and the feeding part 500 and the grounding part 600 in the antenna structure are connected through the feeder line, wherein the second radiation section 300 is a microstrip feeder of a conventional antenna, so that the current flows to the first radiation section 200 and the third radiation section 400 through the second radiation section 300. The present application uses the microstrip feeder as a part of the high-frequency radiation section and the low-frequency radiation section to improve the high-frequency bandwidth of the antenna structure, that is, by adjusting the absolute length of the high-frequency resonant branch and the low-frequency resonant branch to improve the high-frequency bandwidth of the antenna structure, so that the bandwidth covers the frequency band where WIFI6E is located; Figure 1 , Figure 2 shown.

[0033] The technical solution of the present application adopts the microstrip feed line of a conventional antenna as part of the high-frequency radiation part and the low-frequency radiation part to improve the high-frequency bandwidth of the antenna structure performance of the present application, so that the bandwidth covers the frequency band where WIFI6E is located, thereby solving the technical problems existing in the prior art.

[0034] In one embodiment, reference Figure 4 By using the microstrip feed line of the antenna structure as a part of the high-frequency radiation part, that is, using the second radiation section 300 as a part of the high-frequency radiation part, the high-frequency band A range of the antenna structure can be made 4.49GHz~8.1GHz; in this embodiment, the high-frequency band A range of the antenna structure of the present application can completely cover the frequency band where WIFI6E is located, thereby solving the technical problems existing in the prior art.

[0035] In one embodiment, the length range of the first radiation segment 200 is 9.7 mm to 14 mm. In this embodiment, in order to facilitate the installation of the antenna structure, the length of the first radiation segment 200 can adopt one of the above ranges. Under the action of the above structure, the size of the substrate 100 can be reduced, and the size of the antenna structure can be further reduced. In addition, the length of the high-frequency radiation segment can be adjusted through the first radiation segment 200.

[0036] In one embodiment, the length of the first radiation segment 200 is 11 mm, and the length of the second radiation segment 300 is 12.95 mm. In this embodiment, in order to facilitate the installation of the antenna structure, the lengths of the first radiation segment 200 and the second radiation segment 300 can adopt the above-mentioned implementation mode. Under the action of the above-mentioned structure, the size of the high-frequency radiation part can be reduced to increase the frequency of the electromagnetic waves in the high-frequency band A, while reducing the size of the antenna structure.

[0037] In one embodiment, reference Figure 4 By using the microstrip feed line of the antenna structure as a part of the low-frequency radiation part, that is, using the second radiation section 300 as a part of the low-frequency radiation part, the low-frequency band B range of the antenna structure can be made 2.38GHz to 2.57GHz, which can make the signal strength of the low-frequency signal in the antenna structure better, the penetration stronger, and the signal coverage area wider.

[0038] In one embodiment, the length range of the third radiation segment 400 is 25 mm to 28.7 mm. In this embodiment, the selection of the third radiation segment 400 within this range can further reduce the size of the substrate 100, thereby reducing the overall size of the antenna structure; at the same time, in this embodiment, since the third radiation segment 400 and the first radiation segment 200 form an open ring structure, under this structure, in combination with the above-selected size, the size of the substrate 100 can be further reduced, making the size of the substrate 100 more compact, thereby reducing the production cost of the substrate 100, and the length of the low-frequency radiation segment can be adjusted by the third radiation segment 400.

[0039] In one embodiment, the length of the third radiation section 400 is 25.7 mm, and the length of the second radiation section 300 is 12.95 mm. In this embodiment, the length of the third radiation section 400 and the length of the second radiation section 300 are as shown in the attached Figure 3 As shown in the dashed line indicated by the arrow, when the length of the third radiation segment 400 is selected to be 25.7 mm and the length of the second radiation segment 300 is 12.95 mm, the low-frequency signal emitted by the antenna structure of the present application can have better intensity, wider range and stronger penetration.

[0040] In one embodiment, the substrate 100 has a first board surface 110 and a second board surface 120 relative to each other, the first radiation section 200, the second radiation section 300, the third radiation section 400 and the feeding part 500 are all arranged on the first board surface 110, and the grounding part 600 is arranged on the second board surface 120. In this embodiment, by arranging the high-frequency radiation part 200, the low-frequency radiation part 300 and the feeding part 500 on the first board surface 110, and arranging the grounding part 600 on the second board surface 120, the size of the substrate 100 can be further reduced by adopting a facet setting method. At the same time, the grounding part 600 and the feeding part 500 are arranged corresponding to the substrate 100. Under this structure, the feed line can be easily connected to the grounding part 600 and the feeding part 500; and / or, in one embodiment, the length, width and thickness dimensions of the substrate 100 are 31mm*26mm*1.6mm. The substrate 100 adopts the above dimensions, so that the structure of the substrate 100 is smaller, thereby reducing the size of the antenna structure.

[0041] In one embodiment, reference Figure 2 , further comprising a grounding area 700 , wherein the grounding area 700 is disposed on the second board surface 120 , and the grounding portion 600 is disposed in the grounding area 700 .

[0042] In one embodiment, the first radiation segment 200, the second radiation segment 300, the third radiation segment 400 and the grounding area 700 are all configured with copper foil material. Under the action of copper foil, the thickness of the first radiation segment 200, the second radiation segment 300 and the third radiation segment 400 can be reduced, so that the performance of the antenna structure is better.

[0043] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An antenna structure, characterized in that: include: A substrate, wherein a first radiation section, a second radiation section and a third radiation section are provided on the substrate, one end of the first radiation section, one end of the second radiation section and one end of the third radiation section converge at one point, the third radiation section and the first radiation section form an open ring structure, and the length of the third radiation section is greater than the length of the first radiation section, the second radiation section extends in a direction away from the center of the open ring structure, the first radiation section and the second radiation section constitute a high-frequency radiation part of the antenna structure, and the third radiation section and the second radiation section constitute a low-frequency radiation part of the antenna structure; a feeding part, provided at one end of the second radiation section away from the first radiation section, and used to be connected to a feeding source; and The grounding part is used for grounding.

2. The antenna structure according to claim 1, characterized in that: The high frequency band of the antenna structure is in the range of 4.49 GHz to 8.1 GHz.

3. The antenna structure according to claim 2, characterized in that: The length of the first radiation segment ranges from 9.7 mm to 14 mm.

4. The antenna structure according to claim 3, characterized in that: The length of the first radiation segment is 11 mm, and the length of the second radiation segment is 12.95 mm.

5. The antenna structure according to claim 1, characterized in that: The low frequency band of the antenna structure is in the range of 2.38 GHz to 2.57 GHz.

6. The antenna structure according to claim 5, characterized in that: The length of the third radiation segment ranges from 25 mm to 28.7 mm.

7. The antenna structure according to claim 6, characterized in that: The length of the third radiation segment is 25.7 mm, and the length of the second radiation segment is 12.95 mm.

8. The antenna structure according to any one of claims 1 to 7, characterized in that: The substrate has a first plate surface and a second plate surface opposite to each other, the first radiation section, the second radiation section, the third radiation section and the feeding portion are all arranged on the first plate surface, and the grounding portion is arranged on the second plate surface; And / or, the length, width and thickness of the substrate are 31 mm*26 mm*1.6 mm.

9. The antenna structure according to claim 1, characterized in that: It also includes a grounding area, and the grounding portion is arranged in the grounding area.

10. The antenna structure according to claim 9, characterized in that: The first radiation section, the second radiation section, the third radiation section and the grounding area are all made of copper foil.

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