Dual-frequency coupled antenna and electronic equipment

Abstract

The utility model discloses a double-frequency coupled antenna and electronic equipment. The double-frequency coupled antenna comprises a substrate, a signal line and a ground line. The signal line is attached to the substrate and is used for generating a first resonance point; the ground wire is attached to the substrate, at least part of the ground wire extends to form an extension section, and the extension section is coupled with the signal wire to generate a second resonance point; wherein the length of the extension section is greater than that of the signal line. The electronic equipment comprises an equipment main body, a control module assembled on the equipment main body and a dual-frequency coupled antenna, wherein the dual-frequency coupled antenna is electrically connected with the control module. Through the arrangement, the signal wire and the ground wire are matched with each other to form signals of two frequency bands, so that the space occupancy rate of the dual-frequency coupled antenna is reduced, and the working efficiency of the dual-frequency coupled antenna is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a dual-frequency coupled antenna and electronic device. Background Technology

[0002] With the development of wireless communication, the demand for communication efficiency is increasing. Antennas, as a crucial component of wireless communication, are used to radiate or receive electromagnetic waves. To meet the requirements of multi-band operation, existing antennas typically require multiple signal lines, which increases the space occupied by dual-band antennas and consequently raises their production costs. Furthermore, the current signal line arrangement of dual-band antennas results in lower radiation efficiency, thus reducing their overall operating efficiency.

[0003] Therefore, how to reduce the space occupied by dual-band antennas and improve their working efficiency is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide a dual-frequency coupled antenna and electronic device that can reduce space occupancy and improve working efficiency.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A dual-frequency coupled antenna includes a substrate, a signal line, and a ground line. The signal line is attached to the substrate to generate a first resonant point; the ground line is attached to the substrate and extends at least partially to form an extension segment, which couples with the signal line to generate a second resonant point; wherein the length of the extension segment is greater than the length of the signal line.

[0007] Furthermore, the extension includes a first segment, a second segment, a third segment, a fourth segment, and a fifth segment connected in sequence, the dual-frequency coupled antenna includes a ground terminal, the end of the first segment away from the second segment is connected to the ground terminal, and the signal line is at least partially located between the fifth segment and the first segment, and at least partially located between the fifth segment and the second segment.

[0008] Furthermore, the first segment extends along the vertical direction of the dual-frequency coupled antenna, the second segment extends along the horizontal direction of the dual-frequency coupled antenna, the third segment extends along the vertical direction of the dual-frequency coupled antenna, the fourth segment extends along the horizontal direction of the dual-frequency coupled antenna, and the fifth segment extends along the vertical direction of the dual-frequency coupled antenna.

[0009] Further, one end of the first segment connected to the ground terminal is located below the other end of the first segment; one end of the second segment connected to the first segment is located to the left of the other end of the second segment; one end of the third segment connected to the second segment is located below the other end of the third segment; one end of the fourth segment connected to the third segment is located to the right of the other end of the fourth segment; one end of the fifth segment connected to the fourth segment is located above the other end of the fifth segment; the signal line is located to the left of the first segment.

[0010] Further, one end of the first segment connected to the ground terminal is located below the other end of the first segment; one end of the second segment connected to the first segment is located to the right of the other end of the second segment; one end of the third segment connected to the second segment is located below the other end of the third segment; one end of the fourth segment connected to the third segment is located to the left of the other end of the fourth segment; one end of the fifth segment connected to the fourth segment is located above the other end of the fifth segment; the signal line is located to the right of the first segment.

[0011] Further, the first segment and the second segment form an "L" - shaped structure, and the third segment, the fourth segment and the fifth segment form a "冖" - shaped structure.

[0012] Further, the signal line includes a curved segment, a first straight segment and a second straight segment connected in sequence. The dual - frequency coupling antenna includes a feeding end. The curved segment is also connected to the feeding end. One end of the second straight segment far from the first straight segment forms an open circuit with one end of the fifth segment far from the fourth segment.

[0013] Further, the curved segment and the first straight segment are located between the fifth segment and the first segment, and the second segment is located between the fifth segment and the second segment.

[0014] Further, the first straight segment extends along the up - and - down direction of the dual - frequency coupling antenna, the second straight segment extends along the left - and - right direction of the dual - frequency coupling antenna, and the first straight segment and the second straight segment form an "L" - shaped structure.

[0015] An electronic device, comprising a device main body, a control module and a dual - frequency coupling antenna. The control module is assembled on the device main body, and the dual - frequency coupling antenna is electrically connected to the control module.

[0016] The above - mentioned dual - frequency coupling antenna and electronic device can generate a first resonance point through the signal line, and the signal line is coupled with the extension of the ground wire to generate a second resonance point, thereby simplifying the antenna structure on the premise of meeting the multi - band communication requirements, so as to reduce the space occupation rate of the dual - frequency coupling antenna. At the same time, the form of coupling between the signal line and the extension of the ground wire can also improve the radiation efficiency of the dual - frequency coupling antenna, thereby improving the working efficiency of the dual - frequency coupling antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the dual - frequency coupling antenna provided by the embodiment of the present application.

[0018] Figure 2This is a structural diagram of another dual-frequency coupled antenna provided in an embodiment of this application.

[0019] Figure 3 The radiation efficiency of the passive data dual-band coupled antenna provided in the embodiments of this application in the 2.4GHz and 5GHz frequency bands.

[0020] Figure 4 The total radiated power of the dual-band coupled antenna provided in the embodiments of this application in the 2.4GHz and 5GHz frequency bands.

[0021] Figure 5 This is a structural diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0024] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0025] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The left, right, top, and bottom are shown to indicate the left, right, top, and bottom of the dual-frequency coupled antenna 100.

[0026] like Figure 1 and Figure 2As shown, this application provides a dual-band coupled antenna 100, which includes a substrate 11, a signal line 12, and a ground line 13. The substrate 11 serves as the main body 21 structure of the dual-band coupled antenna 100, and is used to carry the signal line 12 and the ground line 13. The signal line 12 is used to generate signals, and the ground line 13 is used to form a signal loop and prevent the antenna from being interfered with.

[0027] Specifically, signal line 12 is attached to substrate 11 to generate a first resonant point; ground line 13 is attached to substrate 11, and ground line 13 extends at least partially to form an extension segment 131. The extension segment 131 couples with signal line 12 to generate a second resonant point. Through this arrangement, signal line 12 itself can generate the first resonant point, and the coupling of signal line 12 with extension segment 131 can generate the second resonant point. This achieves multi-band resonant point generation while reducing the number of signal lines 12 in the dual-band coupled antenna 100, thereby reducing the space occupied by the dual-band coupled antenna 100 and improving its structural compactness. Furthermore, since the second resonant point is generated through the coupling of signal line 12 with extension segment 131, the first and second resonant points can be generated simultaneously, thus meeting the requirements of two frequency bands in the operating environment simultaneously, thereby improving the radiation efficiency of the dual-band coupled antenna 100 and enhancing its operating efficiency.

[0028] In this application, the dual-frequency coupled antenna 100 is a monopole antenna, which enables it to transmit and receive signals in all directions, thereby improving the signal coverage of the dual-frequency coupled antenna 100 and enhancing its environmental adaptability.

[0029] In this application, the first resonant point can be a resonant point of the 5GHz band in the WiFi (Wireless Network Communication Technology) standard, and the second resonant point can be a resonant point of the 2.4GHz band in the WiFi (Wireless Network Communication Technology) standard. With the above settings, the 5GHz and 2.4GHz bands are commonly used frequency bands for antenna transmission in WiFi communication, enabling the dual-band coupled antenna 100 to adapt to most usage environments, thereby improving the compatibility of the dual-band coupled antenna 100.

[0030] It should be noted that this application does not restrict the frequency band of the resonant point, only that it meets the requirements of the usage environment.

[0031] More specifically, the length of the extension segment 131 is greater than the length of the signal line 12. This arrangement increases the electrical length of the dual-band coupled antenna 100, thereby improving its performance and operating efficiency. Furthermore, the greater length of the extension segment 131 allows it to couple with the signal line 12, generating a resonant point different from the first resonant point. This, in turn, generates multiple frequency band resonant points while reducing the number of signal lines 12, thus improving the adaptability of the dual-band coupled antenna 100.

[0032] For example, the length of the extension segment 131 can be twice the length of the signal line 12. With this configuration, a sufficiently long extension segment 131 can be adequately coupled with the signal line 12, thereby improving the stability of the second resonant point generation and thus enhancing the operational stability of the dual-band coupled antenna 100. Furthermore, since the first resonant point, i.e., the 5GHz band, is generated via the signal line 12 in this application, the above configuration facilitates the coupling of the signal line 12 and the extension segment 131 to form the second resonant point, i.e., the 2.4GHz band.

[0033] It should be noted that the length of the extension segment 131 is not limited in this application, as long as the extension segment 131 can be coupled with the signal line 12 and generate a resonance point different from the first resonance point.

[0034] In one implementation, the extension segment 131 includes a first segment 1311, a second segment 1312, a third segment 1313, a fourth segment 1314, and a fifth segment 1315 connected sequentially. The dual-band coupled antenna 100 includes a ground terminal 14, and the end of the first segment 1311 furthest from the second segment 1312 is connected to the ground terminal 14. By dividing the extension segment 131 into multiple segments, different shapes can be created, allowing the extension segment 131 to adapt to different sizes of substrates 11 or the layout of loops within the substrate 11, thus improving the compatibility of the extension segment 131. Simultaneously, the length of the extension segment 131 can be extended, thereby increasing the electrical length of the dual-band coupled antenna 100 and improving its operating efficiency.

[0035] Specifically, signal line 12 is at least partially located between the fifth segment 1315 and the first segment 1311, and at least partially located between the fifth segment 1315 and the second segment 1312. This arrangement allows for a more compact spatial arrangement between signal line 12 and extension segment 131, thereby reducing the space occupancy rate of signal line 12 and consequently reducing the space occupancy rate of the dual-band coupled antenna 100.

[0036] In one implementation, the first segment 1311 extends along the vertical direction of the dual-frequency coupled antenna 100, the second segment 1312 extends along the horizontal direction of the dual-frequency coupled antenna 100, the third segment 1313 extends along the vertical direction of the dual-frequency coupled antenna 100, the fourth segment 1314 extends along the horizontal direction of the dual-frequency coupled antenna 100, and the fifth segment 1315 extends along the vertical direction of the dual-frequency coupled antenna 100. By configuring different parts of the extension segment 131 to extend in multiple directions, the extension segment 131 undergoes multiple bends, thereby increasing the length of the extension segment 131 while reducing its space occupancy rate, thus improving the utilization rate of the substrate 11's spatial layout and reducing the space occupancy rate of the dual-frequency coupled antenna 100.

[0037] In one implementation, one end of the first segment 1311 connected to the ground terminal 14 is located below the other end of the first segment 1311; one end of the second segment 1312 connected to the first segment 1311 is located to the left of the other end of the second segment 1312; one end of the third segment 1313 connected to the second segment 1312 is located below the other end of the third segment 1313; one end of the fourth segment 1314 connected to the third segment 1313 is located to the right of the other end of the fourth segment 1314; one end of the fifth segment 1315 connected to the fourth segment 1314 is located above the other end of the fifth segment 1315; and the signal line 12 is located to the left of the first segment 1311.

[0038] With the above arrangement, the signal line 12 and the extension section 131 are adjacent and spaced apart, allowing for sufficient coupling between the signal line 12 and the extension section 131. This results in a more stable generation of the second resonant point, thereby improving the operational stability of the dual-frequency coupled antenna 100. Furthermore, the above arrangement allows the extension section 131 to be bent multiple times, reducing its space occupancy while maintaining sufficient length, thus reducing the overall space occupancy of the dual-frequency coupled antenna 100.

[0039] In one implementation, one end of the first segment 1311 connected to the ground terminal 14 is located below the other end of the first segment 1311; one end of the second segment 1312 connected to the first segment 1311 is located to the right of the other end of the second segment 1312; one end of the third segment 1313 connected to the second segment 1312 is located below the other end of the third segment 1313; one end of the fourth segment 1314 connected to the third segment 1313 is located to the left of the other end of the fourth segment 1314; one end of the fifth segment 1315 connected to the fourth segment 1314 is located above the other end of the fifth segment 1315; and the signal line 12 is located to the right of the first segment 1311.

[0040] Through the above settings, the signal line 12 can be adjacent to the extension segment 131 with a certain distance, so that the signal line 12 can be fully coupled with the extension segment 131, and then the second resonance point can be generated more stably, so as to improve the working stability of the dual-frequency coupled antenna 100. In addition, the above settings can make the extension segment 131 bend multiple times, so that on the basis of having sufficient length, the space occupancy rate of the extension segment is reduced, and then the space occupancy rate of the dual-frequency coupled antenna 100 is reduced.

[0041] It should be noted that the present application does not limit the positional relationship between the signal line 12 and the extension segment 131, and only needs to satisfy the generation of the second resonance point.

[0042] As an implementation manner, the first segment 1311 and the second segment 1312 form an "L" shape structure, and the third segment 1313, the fourth segment 1314 and the fifth segment 1315 form a "冖" shape structure. Through the above settings, the extension segment 131 can be extended in multiple directions, so as to increase the electrical length of the dual-frequency coupled antenna 100, and then improve the radiation efficiency of the dual-frequency coupled antenna 100, so as to improve the working efficiency and performance of the dual-frequency coupled antenna 100.

[0043] As an implementation manner, the signal line 12 includes a curve segment 121, a first straight segment 122 and a second straight segment 123 connected in sequence, the dual-frequency coupled antenna 100 includes a feeding end 15, the curve segment 121 is also connected to the feeding end 15, and one end of the second straight segment 123 far from the first straight segment 122 forms an open circuit with one end of the fifth segment 1315 far from the fourth segment 1314. Through the above settings, the second straight segment 123 is separated from the fifth segment 1315, so that the signal line 12 is not directly connected to the extension segment 131, that is, an open circuit is formed between the signal line 12 and the extension segment 131, so that the signal line 12 and the extension segment 131 can be coupled to generate the second resonance point.

[0044] When the dual-frequency coupled antenna 100 needs to generate the first resonance point, as Figure 1 shown, the first resonance point is generated by the link indicated by the dotted line with an arrow in Figure 1 , and the signal propagates outward from the open circuit; when the dual-frequency coupled antenna 100 needs to generate the second resonance point, as Figure 2 shown, the second resonance point is generated by the link indicated by the dash-dotted line with an arrow in Figure 2 , so as to realize that in the case of a single signal line 12, resonance points of two frequency bands can be generated, so as to reduce the number of signal lines 12 in the dual-frequency coupled antenna 100, and then reduce the space occupancy rate of the dual-frequency coupled antenna 100.

[0045] In one implementation, curved segment 121 and the first straight segment 122 are located between the fifth segment 1315 and the first segment 1311, and the second segment 1312 is located between the fifth segment 1315 and the second segment 1312. Through this arrangement, the connection between curved segment 121 and the feed segment reduces reflection and loss when the signal enters the signal line 12, thereby improving the stability of the signal generated by the signal line 12. Simultaneously, curved segment 121 also increases the freedom of routing the signal line 12, facilitating its layout and reducing its space occupancy, thus reducing the space occupancy of the dual-band coupled antenna 100.

[0046] In one implementation, the first straight segment 122 extends vertically along the dual-frequency coupled antenna 100, and the second straight segment 123 extends horizontally along the dual-frequency coupled antenna 100, forming an "L"-shaped structure. By configuring the signal line 12 into an "L"-shaped structure, the length of the signal line 12 can be extended, thereby increasing the electrical length of the dual-frequency coupled antenna 100 and improving its performance. Furthermore, by extending the length of the signal line 12, the space occupancy rate of the signal line 12 can be reduced, thus reducing the space occupancy rate of the dual-frequency coupled antenna 100.

[0047] like Figure 3 and Figure 4 As shown, the arrangement of the signal line 12 and the extension section 131, as well as the form of coupling to generate the resonant point in this application, can improve the working efficiency of the dual-frequency coupled antenna 100.

[0048] For example, Figure 3 The measured data for the radiation efficiency of the passive dual-band coupled antenna 100 in the 2.4 GHz and 5 GHz bands are as follows: Figure 3 It is known that the dual-band coupled antenna 100 has an efficiency of about 50% at 2.4 GHz, and a radiation efficiency of 40% to 50% in the 5 GHz band. In contrast, the radiation efficiency of existing antennas is only about 20%.

[0049] For example, Figure 4 The measured data for the total radiated power of the dual-band coupled antenna 100 in the 2.4 GHz and 5 GHz bands under active data conditions are as follows: Figure 4 It can be seen that the total radiated power of the dual-frequency coupled antenna 100 at 2.4 GHz is 19.5 dBm, and the total radiated power of the dual-frequency coupled antenna 100 at 5 GHz is 19 dBm.

[0050] Therefore, the arrangement of the dual-frequency coupled antenna 100 in this application can improve the radiation efficiency of the dual-frequency coupled antenna 100 and improve its working efficiency.

[0051] like Figure 5 As shown, this application also provides an electronic device 200, which includes a device body 21, a control module 22 and a dual-frequency coupled antenna 100. The control module 22 is assembled inside the device body 21, and the dual-frequency coupled antenna 100 is electrically connected to the control module 22, thereby enabling the electronic device 200 to transmit or receive information through the dual-frequency coupled antenna 100.

[0052] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A dual frequency coupled antenna, characterized by, The dual-frequency coupling antenna comprises: a substrate; a signal line attached to the substrate for generating a first resonant point; a ground line attached to the substrate, the ground line at least partially extends to form an extension section, the extension section is coupled with the signal line to generate a second resonant point; wherein the length of the extension section is greater than the length of the signal line.

2. The dual-frequency coupling antenna according to claim 1, wherein: the extension section comprises a first section, a second section, a third section, a fourth section and a fifth section connected in sequence, the dual-frequency coupling antenna comprises a ground end, one end of the first section away from the second section is connected with the ground end, the signal line is at least partially located between the fifth section and the first section, and the signal line is at least partially located between the fifth section and the second section.

3. The dual-frequency coupling antenna according to claim 2, wherein: the first section extends in the up-down direction of the dual-frequency coupling antenna, the second section extends in the left-right direction of the dual-frequency coupling antenna, the third section extends in the up-down direction of the dual-frequency coupling antenna, the fourth section extends in the left-right direction of the dual-frequency coupling antenna, and the fifth section extends in the up-down direction of the dual-frequency coupling antenna.

4. The dual-frequency coupling antenna according to claim 2 or 3, wherein: one end of the first section connected with the ground end is located below the other end of the first section; one end of the second section connected with the first section is located to the left of the other end of the second section; one end of the third section connected with the second section is located below the other end of the third section; one end of the fourth section connected with the third section is located to the right of the other end of the fourth section; one end of the fifth section connected with the fourth section is located above the other end of the fifth section; and the signal line is located to the left of the first section.

5. The dual-frequency coupling antenna according to claim 2 or 3, wherein: one end of the first section connected with the ground end is located below the other end of the first section; one end of the second section connected with the first section is located to the right of the other end of the second section; one end of the third section connected with the second section is located below the other end of the third section; one end of the fourth section connected with the third section is located to the left of the other end of the fourth section; one end of the fifth section connected with the fourth section is located above the other end of the fifth section; and the signal line is located to the right of the first section.

6. The dual-frequency coupling antenna according to claim 2 or 3, wherein: the first section and the second section form an "L" shape structure, and the third section, the fourth section and the fifth section form a "N" shape structure.

7. The dual-frequency coupling antenna according to claim 2 or 3, wherein: the signal line comprises a curved section, a first straight section and a second straight section connected in sequence, the dual-frequency coupling antenna comprises a feeding end, the curved section is further connected with the feeding end, and one end of the second straight section away from the first straight section forms an open circuit with one end of the fifth section away from the fourth section.

8. The dual-frequency coupling antenna according to claim 7, wherein: The curve segment and the first straight line segment are located between the fifth segment and the first segment, and the second segment is located between the fifth segment and the second segment.

9. The dual-frequency coupled antenna of claim 7, wherein, The first straight line segment extends in an up-down direction of the dual-frequency coupled antenna, and the second straight line segment extends in a left-right direction of the dual-frequency coupled antenna, and the first straight line segment and the second straight line segment form an "L" type structure.

10. An electronic device, comprising: The dual-frequency coupled antenna of any one of claims 1 to 9 is electrically connected to the control module.

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