Antenna structure and electronic equipment

Abstract

The invention relates to an antenna structure and electronic equipment. The antenna structure comprises: a metal floor; the first frame radiator is used for radiating satellite frequency band signals, the first end of the first frame radiator is used for forming a first breaking joint, the second end of the first frame radiator is used for forming a second breaking joint, and the first frame radiator is located on the outer side of the metal floor; a whole-piece type clearance is formed between the metal floor and the first frame radiator, and the clearance is communicated with the first breaking joint and the second breaking joint; the metal piece comprises a first metal section, the first metal section and the first frame radiator are arranged in parallel, at least part of the first metal section is located on the inner side of the first frame radiator, and the first metal section is provided with a first grounding point and a second grounding point which are spaced.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and in particular to an antenna structure and electronic device. Background Technology

[0002] With the growing popularity of outdoor adventure, some users hope that handheld devices can enable emergency communication in extreme scenarios without data networks, thereby improving the safety of their adventures.

[0003] In some related technologies, satellite communication antennas are integrated into handheld terminals. These antennas need to be pointed towards the zenith to achieve proper alignment with satellites and other targets. Therefore, improving the directivity of satellite communication antennas has become a key research focus for designers. Summary of the Invention

[0004] This disclosure provides an antenna structure and electronic device to address the shortcomings of related technologies.

[0005] According to a first aspect of the present disclosure, an antenna structure is provided, comprising:

[0006] Metal flooring;

[0007] The first frame radiator is used to radiate satellite frequency band signals. The first end of the frame radiator is used to form a first gap and the second end is used to form a second gap. The first frame radiator is located outside the metal floor, and a whole-piece clearance is formed between the metal floor and the first frame radiator. The clearance is connected to both the first gap and the second gap.

[0008] The metal component includes a first metal segment, which is arranged parallel to the first frame radiator and is at least partially located inside the first frame radiator. The first metal segment is provided with a first grounding point and a second grounding point spaced apart.

[0009] Optionally, the metal component further includes a second metal segment and a third metal segment, wherein the second metal segment is connected to one end of the first metal segment and the third metal segment is connected to the other end of the first metal segment;

[0010] The second metal segment is provided with a third grounding point, and the third metal segment is provided with a fourth grounding point.

[0011] Optionally, a SAR sensor is provided, which is electrically connected to the first frame radiator.

[0012] Optionally, the third end of the first metal segment protrudes in a first direction relative to the first frame radiator.

[0013] The second end of the first frame radiator protrudes relative to the first metal segment in a second direction, and the first direction and the second direction are opposite.

[0014] The first grounding point is located near the other end of the first metal segment away from the third end, and the second grounding point is located near the first metal segment at the position corresponding to the first end of the first frame radiator.

[0015] Optional, including:

[0016] The first frame radiator is used to radiate BeiDou frequency band signals and TianTong frequency band signals.

[0017] Optionally, the BeiDou frequency band signal includes BeiDou receiving frequency band signal and BeiDou transmitting frequency band signal;

[0018] The first and second slits are symmetrically arranged about the center line of their respective electronic devices.

[0019] Optional, also includes:

[0020] The second frame radiator, which cooperates with the first end to form a gap;

[0021] The third frame radiator, which cooperates with the second end to form a gap, is used to radiate cellular frequency band signals.

[0022] Optionally, the second frame radiator is used to radiate GPS L1 band signals and Wi-Fi band signals;

[0023] The third frame radiator is used to radiate mid-to-high frequency band signals, N78 band signals, and N79 band signals.

[0024] According to a second aspect of the present disclosure, an electronic device is provided, including an antenna structure as described in any of the above embodiments, wherein a first frame radiator is located at the top of the electronic device.

[0025] Optionally, the electronic device includes a lens metal bracket, wherein the lens metal bracket is the metal component.

[0026] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0027] As can be seen from the above embodiments, the first metal segment in this disclosure is provided with a first grounding point and a second grounding point that are spaced apart, so as to adjust the current distribution on the metal component, so that the current strength distribution trend on the first metal segment is basically the same as the current strength distribution area on the first frame radiator, which is beneficial to improving the directionality of the first frame radiator toward the zenith, and is beneficial to satellite communication.

[0028] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0030] Figure 1 This is a schematic diagram illustrating an antenna structure according to an exemplary embodiment.

[0031] Figure 2 This is a schematic diagram of the current distribution between the radiator and the metal component in a comparative scheme during the process of proposing the technical solution disclosed herein.

[0032] Figure 3 yes Figure 2 Direction of the medium radiator radiating signals in the skyband Figure 2 Vito.

[0033] Figure 4 This is a schematic diagram of the current distribution between the radiator and the metal component in another comparative scheme during the process of proposing the technical solution disclosed herein.

[0034] Figure 5 yes Figure 4 Direction of the medium radiator radiating signals in the skyband Figure 2 Vito.

[0035] Figure 6 This is a schematic diagram of current distribution between the first frame radiator and the metal part of an antenna structure according to an exemplary embodiment.

[0036] Figure 7 yes Figure 6 Direction of the first frame radiator radiating the antenna band signal Figure 2 Vito.

[0037] Figure 8 This is a left-hand circular polarization diagram of the BeiDou transmitting band and a right-hand circular polarization diagram of the BeiDou receiving band, according to an exemplary embodiment. Detailed Implementation

[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0039] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the 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 and all possible combinations of one or more of the associated listed items.

[0040] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0041] Figure 1 This is a schematic diagram illustrating an antenna structure according to an exemplary embodiment. Figure 1 As shown, the antenna structure includes a metal ground plane 1, a first frame radiator 2, and a metal component 3. The first frame radiator 2 radiates satellite frequency signals and includes a first end 21 and a second end 22, which are positioned opposite to each other. The first end 21 can form a first gap, and the second end 22 can form a second gap. The first frame radiator 2 is located outside the metal ground plane 1, and a solid clearance is formed between the metal ground plane 1 and the first frame radiator 2. This clearance communicates with the first and second gaps, respectively. In other words, the first frame radiator 2 is not grounded to the metal ground plane 1 through metal ribs, achieving a floating configuration of the first frame radiator 2, which is beneficial for subsequent SAR detection using the first frame radiator 2. For example... Figure 1 As shown, the antenna structure also includes a SAR sensor 4, which is electrically connected to the first frame radiator 3 to achieve SAR detection, which is beneficial for achieving accurate SAR reduction in satellite communication mode.

[0042] Taking the antenna structure applied to a mobile phone as an example, the metal component 3 can be a lens metal bracket for an electronic device. This lens metal bracket and the metal ground 1 are stacked along the thickness direction of the electronic device. The metal component 3 includes a first metal segment 31, at least a portion of which is located inside the first frame radiator 2, and the first metal segment 31 is arranged parallel to the first frame radiator 2. The first frame radiator 2 and the first metal segment 31 can be formed extending in the same direction. The first metal segment 31 can be provided with a first grounding point 311 and a second grounding point 312 spaced apart. By setting the first grounding point 311 and the second grounding point 312, the current distribution on the metal component 3 can be adjusted, so that the excitation current coupled and excited by the metal component 3 and the first frame radiator 2 is basically distributed in the first metal segment 31. Moreover, the current strength distribution trend on the first metal segment 31 is basically the same as the current strength distribution area on the first frame radiator 2, which is beneficial to improving the directivity of the first frame radiator 2 towards the zenith, which is beneficial to satellite communication.

[0043] To more effectively illustrate the effects of this disclosure, a comparative explanation of the disclosed solution and the alternative solutions proposed in the process will be provided below.

[0044] In some comparative scenarios, taking mobile phones as an example, such as... Figure 2 As shown, the radiation of the Tiantong band signal can be achieved using the top IFA antenna. Taking the metal bracket of the lens as an example, even if it is set... Figure 2 The yellow grounding point is shown in the middle, but a radiation pattern simulation of this structure yields... Figure 3 The diagram shows a two-dimensional representation of the zenith direction. In this scenario, the top of the phone faces the zenith, and the screen faces the user. The X-axis represents the phone's thickness, the Y-axis its width, and the Z-axis its length. Theta represents the angle around the Y-axis, and Phi represents the angle around the Z-axis. From... Figure 3 As can be seen from the data, within the 0°-45° Phi angle range, the radiation pattern of the IFA antenna in the skycomb band has basically uniform intensity in the zenith and floor directions. It cannot be guaranteed that the radiation pattern of the IFA antenna in the skycomb band is basically oriented towards the zenith direction, and the directivity of the IFA antenna in the skycomb band cannot be improved.

[0045] Therefore, based on the fact that IFA antennas cannot improve the directivity of satellite frequency band signals, the inventors proposed the present technical solution to improve the directivity of the first frame radiator 2 when radiating satellite frequency band signals by suspending the first frame radiator 2 in a T-antenna configuration.

[0046] And such Figure 4 As shown, the inventors further discovered that when the first frame radiator 2 adopts a T-antenna scheme, if the grounding point on the metal part 3 is not set properly, for example... Figure 4 As shown, taking the lens metal bracket as an example, a grounding point is set in the part overlapping with the first frame radiator 2. Additionally, when grounding points are set on both sides, a relatively strong current is still distributed on the lens metal bracket in the Z direction. Taking the Tiantong band as an example, assuming the top of the phone faces the zenith and the screen faces the user, the X direction is the thickness direction of the phone, the Y direction is the width direction, and the Z direction is the length direction. Theta is the angle around the Y-axis, and Phi is the angle around the Z-axis. Then, from... Figure 5 Direction shown Figure 2 As can be seen from the Vitagram, the radiation pattern of the Tiantong band is mainly concentrated in Figure 5 The area indicated by the red box and red arrow shows that Theta is located in the range of 120°-150°. Obviously, the radiation pattern is basically facing the bottom of the phone, which is not conducive to communication with satellites.

[0047] Based on the above findings, the inventors further propose setting a first grounding point 311 and a second grounding point 312 on the first metal segment 31, with the first grounding point 311 and the second grounding point 312 spaced apart. Taking the Tiantong frequency band as an example, the following is obtained: Figure 6 The diagram shows the current distribution on the first frame radiator 2 and the metal part 3. At this point, the current on the metal part 3 is basically concentrated in the first metal segment 31. Taking the Tiantong band as an example, with the top of the phone facing the zenith and the screen facing the user, the X direction is the thickness direction of the phone, the Y direction is the width direction, and the Z direction is the length direction. Theta is the angle around the Y-axis, and Phi is the angle around the Z-axis. Then, from... Figure 7 Direction shown Figure 2 As can be seen from the Vita diagram, the signal strength in the Theta range of 0°-30° is much greater than that in the range of 120°-150°, which greatly improves the directivity of the first frame radiator 2, and enhances the satellite alignment efficiency and satellite communication effect.

[0048] In some embodiments, still with Figure 1 As shown, the metal component 3 also includes a second metal segment 32 and a third metal segment 33. The second metal segment 32 is connected to one end of the first metal segment 31, and the third metal segment 33 is connected to the other end of the first metal segment 31. The second metal segment 32 is provided with a third grounding point 321, and the third metal segment 33 is provided with a fourth grounding point 331. By setting the third grounding point 321 and the fourth grounding point 331, the coupling current between the metal component 3 and the first frame radiator 2 is distributed as much as possible in the first metal segment 31, or in other words, distributed as much as possible in the part of the metal component 3 close to the first frame radiator 2, thereby reducing the coupling radiation involved in the lower half of the metal component 3.

[0049] In the above embodiments, the third end of the first metal segment 31 protrudes in a first direction relative to the first frame radiator 2, that is... Figure 1 The third end of the first metal segment 31 has its left side protruding from right to left relative to the first frame radiator 2. The second end 22 of the first frame radiator 2 protrudes from the first metal segment 31 in a second direction, opposite to the second direction, meaning the right side of the first frame radiator 2 protrudes from left to right relative to the first metal segment 31. The first grounding point 311 is located near the other end of the first metal segment 31 away from the third segment, i.e., near the right end of the first metal segment 31. The second grounding point 312 is located near the first metal segment 31 at the position corresponding to the first end 21 of the first frame radiator 2, i.e., the second grounding point 312 is located relatively to the left in the first metal segment 31. The length between the first grounding point 311 and the second grounding point 312 is approximately equal to... Figure 1 The overlap length between the first metal segment 31 and the first frame radiator 2 in the vertical direction.

[0050] In the above embodiments, the first frame radiator 2 can be used to radiate BeiDou frequency band signals and TianTong frequency band signals. Combining the BeiDou and TianTong frequency band signals onto the same radiator facilitates a compact antenna layout for electronic devices with this antenna structure. The BeiDou frequency band signal can include both BeiDou transmit and receive frequency band signals, and the first and second slits are symmetrically arranged about the centerline of the electronic device. Figure 1 As shown, if the width direction of the electronic device is taken as left-right, then the first and second slits are symmetrically arranged along the width direction, thereby utilizing the structural symmetry, such as... Figure 8 As shown, the left side is the left-hand circular polarization pattern for the BeiDou transmitting band, and the right side is the right-hand circular polarization pattern for the BeiDou receiving band. (See also...) Figure 8 It is evident that the right-hand circular polarization pattern of the BeiDou receiving band and the left-hand circular polarization pattern of the BeiDou transmitting band have a good and wide overlap area in the zenith direction, thereby improving the BeiDou performance of the antenna structure.

[0051] In the above embodiments, it is still based on Figure 1As shown, the antenna structure also includes a second frame radiator 5 and a third frame radiator 6. The second frame radiator 5 forms a gap with the first end 21 of the first frame radiator 2; the third frame radiator 6 forms a gap with the second end 22 of the first frame radiator 2. Both the second frame radiator 5 and the third frame radiator 6 are used to radiate cellular frequency band signals. This facilitates the rational use of the top space of the electronic device for antenna layout, improving the communication performance of the electronic device. Specifically, the second frame radiator 5 can be used to radiate GPS L1 band signals and Wi-Fi band signals; the third frame radiator 6 can be used to radiate mid-to-high frequency band signals, N78 band signals, and N79 band signals.

[0052] Based on the technical solution of this disclosure, this disclosure also provides an electronic device, which includes the antenna structure described in any of the foregoing embodiments. The first frame radiator 2 is located at the top of the electronic device, which facilitates the orientation of the first frame radiator 2 towards the zenith in the satellite communication frequency band, thus improving satellite communication. The electronic device includes a lens metal bracket, which is the metal component 3 in any of the foregoing embodiments. This allows the lens metal bracket structure inherent in the electronic device to participate in radiation, thereby improving the directivity of the first frame radiator 2 in the satellite communication frequency band.

[0053] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0054] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An antenna structure, characterized in that, include: Metal flooring; The first frame radiator is used to radiate satellite frequency band signals. The first end of the frame radiator is used to form a first gap and the second end is used to form a second gap. The first frame radiator is located outside the metal floor, and a whole-piece clearance is formed between the metal floor and the first frame radiator. The clearance is connected to both the first gap and the second gap. The metal component includes a first metal segment, which is arranged parallel to the first frame radiator and is at least partially located inside the first frame radiator. The first metal segment is provided with a first grounding point and a second grounding point spaced apart.

2. The antenna structure according to claim 1, characterized in that, The metal component further includes a second metal segment and a third metal segment, wherein the second metal segment is connected to one end of the first metal segment and the third metal segment is connected to the other end of the first metal segment; The second metal segment is provided with a third grounding point, and the third metal segment is provided with a fourth grounding point.

3. The antenna structure according to claim 1, characterized in that, A SAR sensor, which is electrically connected to the first frame radiator.

4. The antenna structure according to claim 1, characterized in that, The third end of the first metal segment protrudes in a first direction relative to the first frame radiator. The second end of the first frame radiator protrudes relative to the first metal segment in a second direction, and the first direction and the second direction are opposite. The first grounding point is located near the other end of the first metal segment away from the third end, and the second grounding point is located near the first metal segment at the position corresponding to the first end of the first frame radiator.

5. The antenna structure according to claim 1, characterized in that, include: The first frame radiator is used to radiate BeiDou frequency band signals and TianTong frequency band signals.

6. The antenna structure according to claim 5, characterized in that, The BeiDou frequency band signal includes BeiDou receiving frequency band signal and BeiDou transmitting frequency band signal; The first and second slits are symmetrically arranged about the center line of their respective electronic devices.

7. The antenna structure according to claim 1, characterized in that, Also includes: The second frame radiator, which cooperates with the first end to form a gap; The third frame radiator, which cooperates with the second end to form a gap, is used to radiate cellular frequency band signals.

8. The antenna structure according to claim 7, characterized in that, The second frame radiator is used to radiate GPS L1 band signals and Wi-Fi band signals; The third frame radiator is used to radiate mid-to-high frequency band signals, N78 band signals, and N79 band signals.

9. An electronic device, characterized in that, The antenna structure includes any one of claims 1-8, wherein the first frame radiator is located on top of the electronic device.

10. The electronic device according to claim 9, characterized in that, The electronic device includes a lens metal bracket, which is the metal component.

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