An electronic device

Abstract

This application discloses an electronic device, including: a decorative ring, on which a ring antenna radiator and a linear antenna radiator are disposed; wherein, the ring antenna radiator is provided with a feed point and a first feed point, a first end of the linear antenna radiator is coupled to a first region of the ring antenna radiator, and a second feed point is provided on the linear antenna radiator; wherein, the first region is located between the feed point and the first feed point.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0002] As users demand higher communication quality and reliability from electronic devices, improving the quality and stability of signal transmission and reception has become an increasingly important issue. In communication or wireless systems, antenna switching can optimize signal quality and improve the reliability of wireless communication systems. For example, if one antenna fails, the system can quickly switch to another working antenna to ensure continuous communication. This necessitates deploying more and more antennas in electronic devices.

[0003] Traditional antennas are usually placed on the frame of electronic devices. However, considering the increasing number of antennas and the limited space on the frame of electronic devices, a concept has been proposed to place antennas on the decorative ring of electronic devices. However, current decorative ring antennas have narrow bandwidth and poor performance. Summary of the Invention

[0004] This application provides an electronic device to address the problems of narrow bandwidth and poor performance of current decorative ring antennas.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides an electronic device, including: a decorative ring, on which a ring antenna radiator and a linear antenna radiator are disposed;

[0007] The loop antenna radiator has a feed point and a first feed point, the first end of the linear antenna radiator is coupled to a first region of the loop antenna radiator, and the linear antenna radiator has a second feed point; wherein the first region is located between the feed point and the first feed point.

[0008] Thus, in the above-mentioned scheme of this application, the loop antenna radiator operates in loop mode, and the linear antenna radiator excites its own monopole mode by coupling loop mode energy through the electromagnetic field coupling between the loop antenna radiator and the loop antenna radiator. That is, the loop antenna radiator and the linear antenna radiator in this application can simultaneously realize loop mode and linear mode. Compared with conventional loop antennas, the bandwidth and radiation efficiency can be improved, thereby solving the problems of narrow bandwidth and poor performance of current decorative ring antennas. Attached Figure Description

[0009] Figure 1 One of the schematic diagrams illustrating the decorative ring area of ​​an electronic device according to an embodiment of this application;

[0010] Figure 2 A second schematic diagram illustrating the decorative ring area of ​​an electronic device according to an embodiment of this application;

[0011] Figure 3 Schematic diagram illustrating the current direction of the loop antenna radiator and the linear antenna radiator in embodiments of this application;

[0012] Figure 4 A schematic diagram showing the current zero-point region of the loop antenna radiator according to an embodiment of this application;

[0013] Figure 5 Schematic diagrams showing the standing waves of the loop antenna radiator and the linear antenna radiator in embodiments of this application;

[0014] Figure 6 One of the schematic diagrams illustrating the efficiency of a loop antenna radiator and a linear antenna radiator according to embodiments of this application;

[0015] Figure 7 This application illustrates the radiation pattern of the loop antenna radiator in an embodiment of the present application.

[0016] Figure 8 This application illustrates the radiation pattern of a linear antenna radiator according to an embodiment of the present application.

[0017] Figure 9 This application illustrates the radiation patterns of the loop antenna radiator and the linear antenna radiator according to embodiments of the present application.

[0018] Figure 10 A schematic diagram illustrating the addition of a second tuning unit at the second feed location in an embodiment of this application;

[0019] Figure 11 A second schematic diagram illustrating the efficiency of a loop antenna radiator and a linear antenna radiator according to embodiments of this application;

[0020] Figure 12 This is the third schematic diagram showing the decorative ring area of ​​the electronic device according to an embodiment of this application. Detailed Implementation

[0021] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0022] like Figure 1 and Figure 2 As shown, this application embodiment provides an electronic device, including: a decorative ring 100, on which a ring antenna radiator 110 and a linear antenna radiator 120 are disposed.

[0023] The loop antenna radiator 110 is provided with a feed point 111 and a first feed point 112. The first end A1 of the linear antenna radiator 120 is coupled to the first region B of the loop antenna radiator 110. The linear antenna radiator 120 is provided with a second feed point 121. The first region B is located between the feed point 111 and the first feed point 112.

[0024] Optionally, the ring antenna radiator 110 is a complete ring structure without any gaps.

[0025] Optionally, the first region B can refer to a segment of the loop antenna radiator 110, referred to here as the target radiator. The first end A1 of the linear antenna radiator 120 is positioned directly opposite the target radiator, and there is a coupling gap between the first end A1 of the linear antenna radiator 120 and the target radiator. That is, the energy of the loop antenna radiator 110 is coupled to the linear antenna radiator 120 through the equivalent capacitance of this coupling gap. A smaller coupling gap results in a larger coupling capacitance, making it easier for the energy on the loop antenna radiator 110 to be coupled to the linear antenna radiator 120. This coupling gap can also be constructed as an inductor using other devices or structures to achieve the same effect; the principles are similar and will not be elaborated further here.

[0026] It should be noted that the coupling interval means that the linear antenna radiator 120 and the loop antenna radiator 110 are at a relatively close distance (this distance is the coupling interval), and the two do not contact each other, but obtain energy through the spatial electromagnetic field, thereby achieving coupling between the first end A1 of the linear antenna radiator 120 and the first region B of the loop antenna radiator 110.

[0027] In this embodiment, the loop antenna radiator 110 operates in loop mode, and the linear antenna radiator 120 excites its own monopole mode by coupling loop mode energy through the gap electromagnetic field between it and the loop antenna radiator 110. That is, the loop antenna radiator 110 and the linear antenna radiator 120 in this application can simultaneously realize loop mode and linear mode. Compared with conventional loop antennas, the bandwidth and radiation efficiency can be improved, thereby solving the problems of narrow bandwidth and poor performance of current decorative ring antennas.

[0028] Optionally, the provision of a loop antenna radiator 110 and a linear antenna radiator 120 on the decorative ring 100 can mean that the loop antenna radiator 110 and / or the linear antenna radiator 120 are implemented by printing direct structural (PDS) or etching a flexible printed circuit (FPC) on the non-metallic portion of the decorative ring 100. For example, the decorative ring 100 can be composed of non-metallic portions, or it can have non-metallic portions. That is, the loop antenna radiator 110 and / or the linear antenna radiator 120 can reuse the non-metallic portion of the decorative ring 100 as a medium (or substrate), thereby reducing the increase in the mass of the decorative ring 100 when designing and forming an antenna structure on the decorative ring 100 of an electronic device.

[0029] Optionally, the position of the feed point 111 on the loop antenna radiator 110 can be selected according to the position of the motherboard of the electronic device. Based on the position of the feed point 111 and the actual operating frequency band of the loop antenna radiator 110, the distance between the feed point 111 and the first feed point 112 (i.e., the electrical length of the loop antenna radiator 110 between the feed point 111 and the first feed point 112) is determined, thereby determining the position of the first feed point 112. Preferably, the feed point 111 and / or the first feed point 112 can be selected from the region of strong electric field and / or current in the operating frequency band of the loop antenna radiator 110.

[0030] Optionally, the second feed point 121 is located at the second end A2 of the linear antenna radiator 120, and the second end A2 is disposed away from the loop antenna radiator 110.

[0031] For example, the second feed point 121 being located at the second end A2 of the linear antenna radiator 120 can mean that the second feed point 121 is located at a distance from the second end A2 of the linear antenna radiator 120, or it can mean that the second feed point 121 is located at the second end A2 of the linear antenna radiator 120, that is, the second feed point 121 is located at the end of the linear antenna radiator 120, that is, the linear antenna radiator 120 is formed as a grounding linear trace.

[0032] Optionally, the decorative ring 100 includes a non-metallic decorative ring 101; the ring antenna radiator 110 and the linear antenna radiator 120 are both disposed on the non-metallic decorative ring 101.

[0033] For example, the specific structure and quantity of the loop antenna radiator 110 can be determined according to the appearance design. For instance, both the loop antenna radiator 110 and the linear antenna radiator 120 can be printed inside the decorative ring (DECO).

[0034] For example, the decorative ring 100 may be composed of a non-metallic decorative ring 101, which may serve as a medium (or substrate) in which both the ring antenna radiator 110 and the linear antenna radiator 120 are printed. Optionally, the non-metallic decorative ring 101 may be a plastic support platform within the decorative ring 100.

[0035] For example, the decorative ring 100 can be composed of a non-metallic decorative ring 101 and other structures (such as a dielectric or substrate). The loop antenna radiator 110 of the decorative ring 100 can be disposed on the non-metallic decorative ring 101, and the linear antenna radiator 120 can be disposed on other structures (such as a dielectric or substrate). Optionally, the dielectric or substrate can be a plastic support platform in the decorative ring 100, or glass, or ceramic, or air, etc., and the embodiments of this application are not limited thereto.

[0036] Optionally, the decorative ring 100 includes a non-metallic decorative ring 101 and a metallic decorative ring 102; the linear antenna radiator 120 is disposed on the non-metallic decorative ring 101, and the ring antenna radiator 110 is disposed on the metallic decorative ring 102.

[0037] For example, the decorative ring 100 can be composed of a non-metallic decorative ring 101 and a metallic decorative ring 102. The linear antenna radiator 120 can be printed on the non-metallic decorative ring 101, and the metallic decorative ring 102 can be formed into the loop antenna radiator 110. That is, the loop antenna radiator 110 can reuse the metallic decorative ring 102 in the decorative ring 100, thereby reducing the increase in the mass of the decorative ring 100.

[0038] For example, the decorative ring 100 can be composed of a non-metallic decorative ring 101, a metallic decorative ring 102, and other structures (such as a dielectric or substrate). The metallic decorative ring 102 can be formed as the loop antenna radiator 110, meaning the loop antenna radiator 110 can reuse the metallic decorative ring 102 in the decorative ring 100, thereby reducing the increase in the mass of the decorative ring 100. The linear antenna radiator 120 can be printed on the non-metallic decorative ring 101, or it can be printed on other structures (such as a dielectric or substrate). Optionally, the dielectric or substrate can be a plastic support platform in the decorative ring 100, or glass, or ceramic, or air, etc., and the embodiments of this application are not limited thereto.

[0039] Optionally, the loop antenna radiator 110 is composed of a first radiator C1 and a second radiator C2. The first radiator C1 is one of the radiators located between the feed point 111 and the first feed point 112, and the second radiator C2 is the other radiator located between the feed point 111 and the first feed point 112.

[0040] Wherein, the first end A1 of the linear antenna radiator 120 is coupled to the first region B of the first segment radiator C1;

[0041] The length of the second radiator C2 satisfy: ; and / or, the length of the loop antenna radiator 110 satisfy: ;in, The wavelength corresponding to the resonant frequency of the loop antenna radiator 110. M are positive integers.

[0042] For example, the loop antenna radiator 110 is divided into a first radiator segment C1 and a second radiator segment C2 by the feed point 111 and the first feed point 112. The linear antenna radiator 120 can be coupled to either the first radiator segment C1 or the second radiator segment C2, for example, the linear antenna radiator 120 can be coupled to the segment with the higher electric field strength to better couple the energy on the loop antenna radiator 110. The length of the segment of the first radiator C1 and the second radiator C2 that is not coupled to the linear antenna radiator 120 satisfies 1 / 4 wavelength or an integer multiple thereof. The loop antenna radiator 110 as a whole is a fundamental mode full-wave mode, that is, the total length of the loop antenna radiator 110 is the full wavelength or an integer multiple thereof.

[0043] For example, the length of the second radiator C2 satisfy: This can be when the length of the second radiator C2 is At that time, the loop antenna radiator 110 can resonate at the frequency of its operating band, or it can be when the length of the second radiator C2 is within When near the target location, the loop antenna radiator 110 can resonate at frequencies within its operating frequency band. Similarly, the length of the loop antenna radiator 110... satisfy: This can refer to the length of the loop antenna radiator 110 being... When the loop antenna radiator 110 can resonate at its operating frequency, or when the length of the loop antenna radiator 110 is within a certain range... When the loop antenna radiator 110 is nearby, it can resonate with the frequency of its operating frequency band, etc., but the embodiments of this application are not limited thereto.

[0044] Optionally, the length of the linear antenna radiator 120 satisfy: ;in, The wavelength corresponding to the resonant frequency of the loop antenna radiator 110. It is a positive integer.

[0045] For example, the length of the linear antenna radiator 120 satisfy: This can refer to the length of the linear antenna radiator 120 being... At this time, the linear antenna radiator 120 can resonate at the frequency of the operating frequency band of the loop antenna radiator 110, or when the length of the linear antenna radiator 120 is within When the linear antenna radiator 120 is nearby, it can resonate with the frequency of the operating frequency band of the loop antenna radiator 110, etc., but the embodiments of this application are not limited thereto.

[0046] In this embodiment, the length of the linear antenna radiator 120 is 1 / 4 wavelength or an integer multiple thereof. The linear antenna radiator 120 has a linear structure, and its specific shape can be a straight line, a curve, or a broken line, etc., which is not specifically limited in this embodiment. Optionally, the specific shape of the linear antenna radiator 120 can be set based on the operating frequency band and the space of the decorative ring 100. For example, one or more bending structures can be provided in the linear antenna radiator 120 to save space.

[0047] Optionally, the first region is the current zero-point region on the loop antenna radiator 110.

[0048] For example, the loop antenna radiator 110 as a whole operates in a fundamental full-wave mode, divided into two half-waves. Figure 3 As shown, the arrows indicate the direction of the current in the loop antenna radiator 110. There are two zero points with opposite current directions between the feed point 111 and the first feed point 112, namely the current zero point regions X1 and X2, which are also the points of high electric field strength. Figure 4 As shown.

[0049] For another example, since the linear antenna radiator 120 is a single-circuit linear trace, the coupling between the linear antenna radiator 120 and the loop antenna radiator 110 is capacitive coupling. To better achieve the coupling between the linear antenna radiator 120 and the loop antenna radiator 110, the first region is preferably selected as the region with a strong electric field in the loop antenna radiator 110, i.e., the region with zero current. See further... Figure 4As shown, there are two current zero-point regions X1 and X2 on the loop antenna radiator 110, where the current zero-point region X2 is much weaker than the current zero-point region X1. Therefore, in this embodiment, the coupling region between the linear antenna radiator 120 and the loop antenna radiator 110 is set as the current zero-point region X1.

[0050] like Figure 5 As shown, a standing wave diagram of the loop antenna radiator 110 and the linear antenna radiator 120 is given, where P1 represents the resonant position of the loop mode of the loop antenna radiator 110, and Q1 represents the resonant position of the linear mode of the linear antenna radiator 120. Figure 6 The diagram shows the efficiency of the loop antenna radiator 110 and the linear antenna radiator 120, where P2 represents the loop mode of the loop antenna radiator 110 and Q2 represents the linear mode of the linear antenna radiator 120. It can be seen that coupling between the loop antenna radiator 110 and the linear antenna radiator 120 can enhance the radiation bandwidth and efficiency. When the two resonant frequencies are brought close together and well-blended, a dual improvement in radiation efficiency and bandwidth can be achieved.

[0051] Optionally, the linear antenna radiator 120 is located within the annular region formed by the loop antenna radiator 110.

[0052] Thus, both the loop antenna radiator 110 and the linear antenna radiator 120 have directional null points, such as Figure 7 As shown, the null point of the radiation pattern of the loop antenna radiator 110 is perpendicular to the plane containing the loop antenna radiator 110 and along the axial direction of the loop antenna radiator 110; as Figure 8 As shown, the null point of the radiation pattern of the linear antenna radiator 120 is the direction of the extension line of the linear antenna radiator 120, that is, parallel to the plane where the loop antenna radiator 110 is located. Therefore, the loop antenna radiator 110 and the linear antenna radiator 120 can achieve directional complementarity, that is, achieve omnidirectional radiation pattern. Figure 9 As shown.

[0053] Optionally, the loop antenna radiator 110 and the linear antenna radiator 120 can be arranged in the same plane, so that the loop mode and the linear mode can be excited simultaneously in the same plane, thereby achieving better directional complementarity in the same plane, that is, achieving omnidirectionality of the radiation pattern, and thus the nulls in the radiation pattern are well suppressed.

[0054] Optionally, the electronic device further includes a first tuning unit 130, wherein the first feed point 112 is grounded through the first tuning unit 130.

[0055] For example, the first feed point 112 can be directly grounded or grounded through the first tuning unit 130. Optionally, the first tuning unit 130 may include one or more of capacitors, inductors, resistors, and switches for current distribution on the tuning loop. Specifically, the structure of the first tuning unit 130 can be determined based on the operating frequency band of the loop antenna radiator 110. For example, the first feed point 112 can be selected in the electric field or current strong region of the operating frequency band of the loop antenna radiator 110. When the linear mode of the linear antenna radiator 120 and the ring mode of the loop antenna radiator 110 are well integrated, the radiated energy and bandwidth will be better than those of a single mode, and the null point of the radiation pattern will be well suppressed.

[0056] Optionally, the electronic device further includes a second tuning unit 140, wherein the second feed point 121 is grounded through the second tuning unit 140.

[0057] For example, the first feed point 112 can be directly grounded or grounded through the second tuning unit 140. Optionally, the first tuning unit 130 may include one or more of capacitors, inductors, resistors, and switches for adjusting the resonant electrical length of the linear antenna radiator 120.

[0058] In this embodiment, a first tuning unit 130 may be added at the first feed point 112, and / or a second tuning unit 140 may be added at the second feed point 121, so as to achieve precise control of the resonant frequency or current of the line mode and / or ring mode, so as to achieve precise improvement of efficiency in a specific frequency band or achieve multi-resonance effect.

[0059] like Figure 10 As shown, a schematic diagram of adding a second tuning unit 140 at the second feed point 121 is given, as follows. Figure 11 As shown, the efficiency improvement effect of linear mode and ring mode when they are well integrated in a specific frequency band is presented. It can be seen that by adding a second tuning unit 140 at the second feed point 121, the antenna efficiency of the linear antenna radiator 120 is increased.

[0060] Optionally, the ring antenna radiator 110 is located in a first plane, and the linear antenna radiator 120 is located in a second plane; wherein the first plane and the second plane are different planes that are parallel to each other.

[0061] like Figure 12 As shown, the loop antenna radiator 110 and the linear antenna radiator 120 can be located in different parallel planes. Figure 12The right-hand side of the image is a cross-sectional view. Taking the outer surface closest to the electronic device as the top, the loop antenna radiator 110 can be located above the linear antenna radiator 120, or the linear antenna radiator 120 can be located above the loop antenna radiator 110, etc. The embodiments of this application are not limited to this.

[0062] In this embodiment, the loop antenna radiator 110 and the linear antenna radiator 120 can be located in different parallel planes, allowing for more flexible design. For example, the loop antenna radiator 110 can reuse the metal decorative ring in the decorative ring 100, while the linear antenna radiator 120 can be printed on the medium of the decorative ring 100 or the support, and coupled through spatial capacitance.

[0063] Optionally, the linear antenna radiator 120 can be positioned directly opposite the annular region formed by the loop antenna radiator 110 to improve antenna radiation performance.

[0064] The electronic device in this embodiment can achieve a reliable antenna design by reusing the decorative ring in a limited space layout, thereby achieving omnidirectionality and improving efficiency of the antenna, thus improving the communication quality and reliability of the electronic device, enhancing the overall signal throughput, and reducing the increase in the weight of the decorative ring while ensuring improved communication capabilities.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0067] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0068] The above describes the preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles described in this application, and these improvements and modifications are also within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: A decorative ring, on which a ring antenna radiator and a linear antenna radiator are provided; The loop antenna radiator has a feed point and a first feed point, the first end of the linear antenna radiator is coupled to a first region of the loop antenna radiator, and the linear antenna radiator has a second feed point; wherein the first region is located between the feed point and the first feed point.

2. The electronic device according to claim 1, characterized in that, The first region is the zero-current region on the ring antenna radiator.

3. The electronic device according to claim 1 or 2, characterized in that, The loop antenna radiator consists of a first radiator segment and a second radiator segment. The first radiator segment is one of the radiators located between the feed point and the first feed location, and the second radiator segment is another radiator located between the feed point and the first feed location. Wherein, the first end of the linear antenna radiator is coupled to the first region of the first segment of the radiator; The length of the second radiator satisfy: ; and / or, the length of the loop antenna radiator satisfy: ;in, The wavelength is the resonant frequency corresponding to the radiating frequency of the ring antenna. M are positive integers.

4. The electronic device according to claim 1 or 2, characterized in that, The length of the linear antenna radiator satisfy: ;in, The wavelength is the resonant frequency corresponding to the radiating frequency of the ring antenna. It is a positive integer.

5. The electronic device according to claim 1, characterized in that, Also includes: The first tuning unit, the first feed point is grounded through the first tuning unit.

6. The electronic device according to claim 1, characterized in that, Also includes: The second tuning unit, the second feed point is grounded through the second tuning unit.

7. The electronic device according to claim 1 or 6, characterized in that, The second feed point is located at the second end of the linear antenna radiator, and the second end is disposed away from the loop antenna radiator.

8. The electronic device according to claim 1, characterized in that, The ring antenna radiator is located in a first plane, and the linear antenna radiator is located in a second plane; wherein the first plane and the second plane are different planes that are parallel to each other.

9. The electronic device according to claim 1, characterized in that, The linear antenna radiator is located within the annular region formed by the loop antenna radiator.

10. The electronic device according to claim 1, characterized in that, The decorative ring includes: a non-metallic decorative ring; Both the ring antenna radiator and the linear antenna radiator are disposed on the non-metallic decorative ring.

11. The electronic device according to claim 1, characterized in that, The decorative ring includes: a non-metallic decorative ring and a metallic decorative ring; The linear antenna radiator is disposed on the non-metallic decorative ring, and the ring antenna radiator is disposed on the metallic decorative ring.

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