Antenna structure and terminal

Abstract

The present disclosure relates to an antenna structure and a terminal, the antenna structure comprising a metal middle frame (1) having a first radiation arm (11), a second radiation arm (12) and a third radiation arm (13), the first radiation arm (11) and the second radiation arm (12) being spaced apart, the third radiation arm (13) comprising a parasitic branch (131) disposed between the first radiation arm (11) and the second radiation arm (12) and spaced apart from the first radiation arm (11) and the second radiation arm (12) respectively. The antenna structure can extend the length of the antenna.

Description

Technical Field

[0001] This disclosure relates to the field of antenna technology, and more specifically, to an antenna structure and terminal. Background Technology

[0002] In related technologies, with the development of communication technology, terminals such as mobile phones can integrate more and more frequency bands, and the design of terminal antennas is gradually becoming more integrated. However, in the limited space of stacking, the design of the radiating arm of the metal frame antenna also affects space utilization. Therefore, extending the length of the antenna within the limited stacking space is one of the urgent problems to be solved. Summary of the Invention

[0003] The purpose of this disclosure is to provide an antenna structure that can extend the length of the antenna.

[0004] To achieve the above objectives, this disclosure provides an antenna structure comprising a metal frame having a first radiating arm, a second radiating arm, and a third radiating arm, wherein the first radiating arm and the second radiating arm are spaced apart, and the third radiating arm includes a parasitic branch disposed between the first radiating arm and the second radiating arm, and spaced apart from the first radiating arm and the second radiating arm, respectively.

[0005] Optionally, the parasitic branch includes a first branch segment and a second branch segment that are connected to each other, and the first branch segment and the second branch segment extend in different directions.

[0006] Optionally, both the first and second radiating arms extend laterally, and the third radiating arm has a second branch segment at its end, wherein the first branch segment extends laterally and the second branch segment extends vertically.

[0007] Optionally, the parasitic branch structure is L-shaped and includes a first branch segment and a second branch segment that are perpendicular to each other.

[0008] Optionally, the second radiating arm includes a body segment and an extension segment connected to each other, the extension segment being disposed above the first branch segment and partially overlapping the first branch segment laterally.

[0009] Optionally, the extension segment is connected to the upper part of the body segment, and the vertical width of the extension segment is smaller than the vertical width of the body segment, so that the second radiating arm forms a first clearance groove below the extension segment, the first clearance groove being used to space the extension segment from the photosensitive circuit board disposed on the metal frame.

[0010] Optionally, the extension is configured to be arranged longitudinally offset from the photosensitive circuit board.

[0011] Optionally, a second clearance groove is provided on the extension section, and the second clearance groove is arranged laterally offset from the first branch segment.

[0012] Optionally, the second clearance groove extends vertically.

[0013] According to a second aspect of this disclosure, a terminal is provided, including the antenna structure described above.

[0014] Through the above technical solution, in the antenna structure provided in this disclosure, by utilizing the space between the first and second radiating arms, the parasitic stubs of the third radiating arm can be arranged within this space. This arrangement of parasitic stubs extends the length of the third radiating arm, thereby extending the overall length of the antenna. Furthermore, placing the parasitic stubs between the first and second radiating arms avoids them occupying other arrangement space within the metal frame, facilitating the efficient use of the stacking space of the metal frame. Moreover, the spacing between the parasitic stubs and the first and second radiating arms prevents mutual interference among the first, second, and third radiating arms.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a front view schematic diagram of a portion of the structure of a terminal provided according to an embodiment of this disclosure;

[0018] Figure 2 This is a top view schematic diagram of a portion of the structure of a terminal provided according to an embodiment of this disclosure.

[0019] Explanation of reference numerals in the attached figures

[0020] 1-Metal frame, 11-First radiating arm, 12-Second radiating arm, 121-Main body segment, 122-Extension segment, 123-First clearance groove, 124-Second clearance groove, 13-Third radiating arm, 131-Parasitic branch, 1311-First branch segment, 1312-Second branch segment, 2-Photosensitive circuit board. Detailed Implementation

[0021] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0022] In this disclosure, unless otherwise stated, directional terms such as "horizontal," "vertical," and "longitudinal" are used based on Figure 1 and Figure 2 The XYZ coordinate system is defined, where X represents the horizontal direction, Y represents the vertical direction, and Z represents the vertical direction, corresponding to the up and down directions. The side indicated by the arrow is up, and the opposite side is down. The terms "first" and "second" are used to distinguish one element from another and do not indicate order or importance. Furthermore, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same or similar elements, which this disclosure will not repeat.

[0023] According to a specific embodiment of this disclosure, an antenna structure is provided, with reference to... Figure 1 and Figure 2 As shown, the antenna structure includes a metal frame 1, which has a first radiating arm 11, a second radiating arm 12 and a third radiating arm 13. The first radiating arm 11 and the second radiating arm 12 are spaced apart. The third radiating arm 13 includes a parasitic branch 131, which is disposed between the first radiating arm 11 and the second radiating arm 12 and spaced apart from the first radiating arm 11 and the second radiating arm 12, respectively.

[0024] Through the above technical solution, in the antenna structure provided in this disclosure, by utilizing the space between the first radiating arm 11 and the second radiating arm 12, the parasitic branch 131 of the third radiating arm 13 can be arranged in this space. Thus, the arrangement of the parasitic branch 131 can extend the length of the third radiating arm 13, thereby extending the length of the antenna. Furthermore, the arrangement of the parasitic branch 131 between the first radiating arm 11 and the second radiating arm 12 avoids the parasitic branch 131 occupying other arrangement space in the metal frame 1, facilitating the rational utilization of the stacking space of the metal frame 1. In addition, the spacing between the parasitic branch 131 and the first radiating arm 11 and the second radiating arm 12 can prevent mutual interference between the first radiating arm 11, the second radiating arm 12, and the third radiating arm 13.

[0025] It should be noted that, as is well known to those skilled in the art, the metal frame 1, as part of the antenna, functions through radiating arms, the length of which affects the length of the antenna. This disclosure extends the length of the antenna by using parasitic stubs 131 to extend the length of the third radiating arm 13. Furthermore, as is also well known to those skilled in the art, the length of the antenna determines its bandwidth.

[0026] In specific embodiments of this disclosure, the parasitic branch 131 can be constructed in any suitable manner, referring to... Figure 1 and Figure 2As shown, the parasitic stub 131 may include a first stub segment 1311 and a second stub segment 1312 connected to each other, with the first stub segment 1311 and the second stub segment 1312 extending in different directions. Thus, compared to the first stub segment 1311 and the second stub segment 1312 extending in the same direction, extending the first stub segment 1311 and the second stub segment 1312 in different directions avoids the parasitic stub 131 excessively occupying the arrangement space in one direction, which is beneficial for extending the length of the parasitic stub 131 within a limited arrangement space, and consequently, for extending the length of the antenna.

[0027] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the first radiating arm 11 and the second radiating arm 12 both extend laterally, and the end of the third radiating arm 13 has a second branch segment 1312. The first branch segment 1311 can extend laterally, and the second branch segment 1312 can extend vertically. Thus, the first branch segment 1311 can utilize the lateral arrangement space, and the second branch segment 1312 can utilize the vertical arrangement space. Furthermore, since the first radiating arm 11 and the second radiating arm 12 both extend laterally, the second branch segment 1312 can be arranged at the end of the third radiating arm 13, which facilitates arranging the second branch segment 1312 to extend vertically. Here, "lateral" can refer to the width direction of the metal frame 1, and "vertical" can refer to the thickness direction of the metal frame 1; this disclosure does not limit this.

[0028] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the parasitic branch 131 can be constructed in an L-shape and includes a first branch segment 1311 and a second branch segment 1312 that are perpendicular to each other. This facilitates the processing of the parasitic branch 131. Of course, in other embodiments of this disclosure, the first branch segment 1311 and the second branch segment 1312 can also be constructed with continuous bent sections or be constructed in a spatial spiral shape, and this disclosure does not limit this.

[0029] In some embodiments of this disclosure, reference is made to Figure 1 As shown, the second radiating arm 12 may include a body segment 121 and an extension segment 122 connected to each other. The extension segment 122 is disposed above the first branch segment 1311 and partially overlaps with the first branch segment 1311 in the lateral direction. Thus, by partially overlapping the extension segment 122 with the first branch segment 1311 in the lateral direction, the length of the extension segment 122 can be extended, thereby extending the length of the second radiating arm 12. Here, by setting the extension segment 122 and the first branch segment 1311 to partially overlap in the lateral direction, the arrangement space formed between the first branch segment 1311 and the second branch segment 1312 can also be utilized, which is beneficial for extending the length of the second radiating arm 12 within a limited arrangement space.

[0030] Optionally, refer to Figure 1 and Figure 2 As shown, the extension segment 122 is connected to the upper part of the main body segment 121, and the vertical width of the extension segment 122 is smaller than the vertical width of the main body segment 121, so that the second radiating arm 12 has a first clearance groove 123 formed below the extension segment 122. The first clearance groove 123 is used to space the extension segment 122 from the photosensitive circuit board 2 disposed on the metal frame 1. Here, since the radiating arm needs to maintain a certain distance from metal parts such as the photosensitive circuit board 2 in the design to prevent the metal parts from interfering with the radiating arm, this disclosure arranges the width of the extension segment 122 to be smaller than the width of the main body segment 121, so that the first clearance groove 123 can space the extension segment 122 from the photosensitive circuit board 2, thereby reducing the interference of the photosensitive circuit board 2 on the extension segment 122 and even the second radiating arm 12.

[0031] Optionally, refer to Figure 1 and Figure 2 As shown, the extension section 122 is configured to be longitudinally offset from the photosensitive circuit board 2. This allows the first clearance groove 123, along with the space below it, to be cleared, providing clearance for the extension section 122 and ensuring good radiation performance of the second radiation arm 12. Here, "longitudinal" can refer to the length direction of the metal frame 1, and this disclosure does not limit this.

[0032] Optionally, refer to Figure 2 As shown, a second clearance groove 124 may be provided on the extension section 122, and the second clearance groove 124 is arranged laterally offset from the first branch section 1311. Here, the second clearance groove 124 is located above the photosensitive circuit board 2. By providing the second clearance groove 124, the distance between the extension section 122 and the photosensitive circuit board 2 can be further increased, ensuring good radiation performance of the second radiation arm 12.

[0033] Optionally, refer to Figure 1 As shown, the second clearance groove 124 can extend vertically. Of course, in other embodiments of this disclosure, the second clearance groove 124 can also extend laterally, and this disclosure does not limit this.

[0034] Furthermore, according to some embodiments, the total length of the parasitic branch 131 can be 2 cm, meaning the parasitic branch 131 can extend the third radial arm 13 by 2 cm. Additionally, the total length of the extension segment 122 can be 7 cm, meaning the extension segment 122 can extend the second radial arm 12 by 7 cm. This disclosure does not impose any limitations on this.

[0035] According to a second aspect of this disclosure, a terminal is provided, including the antenna structure described above, which has all the beneficial effects of the antenna structure described above, which will not be elaborated upon here.

[0036] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0038] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An antenna structure, characterized in that, The antenna structure includes a metal frame, which has a first radiating arm, a second radiating arm, and a third radiating arm. The first radiating arm and the second radiating arm are spaced apart. The third radiating arm includes a parasitic branch, which is disposed between the first radiating arm and the second radiating arm and spaced apart from the first radiating arm and the second radiating arm, respectively. The parasitic branch includes a first branch segment and a second branch segment that are connected to each other, and the first branch segment and the second branch segment extend in different directions; The first and second radiating arms both extend laterally, and the third radiating arm has a second branch segment at its end, wherein the first branch segment extends laterally and the second branch segment extends vertically.

2. The antenna structure according to claim 1, characterized in that, The parasitic branch structure is L-shaped and includes a first branch segment and a second branch segment that are perpendicular to each other.

3. The antenna structure according to claim 1, characterized in that, The second radial arm includes a body segment and an extension segment connected to each other. The extension segment is disposed above the first branch segment and partially overlaps the first branch segment in the lateral direction.

4. The antenna structure according to claim 3, characterized in that, The extension segment is connected to the upper part of the main body segment, and the vertical width of the extension segment is smaller than the vertical width of the main body segment, so that the second radiating arm forms a first clearance groove below the extension segment. The first clearance groove is used to space the extension segment from the photosensitive circuit board disposed on the metal frame.

5. The antenna structure according to claim 4, characterized in that, The extension section is configured to be longitudinally offset from the photosensitive circuit board.

6. The antenna structure according to claim 4, characterized in that, The extension section is provided with a second clearance groove, which is arranged laterally offset from the first branch segment.

7. The antenna structure according to claim 6, characterized in that, The second clearance groove extends vertically.

8. A terminal, characterized in that, Includes the antenna structure described in any one of claims 1-7.

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