Antenna structure and electronic equipment

Abstract

The utility model relates to an antenna structure and electronic equipment. The antenna structure comprises a first radiator, wherein the first radiator comprises a first upper frame point and a second upper frame point; the second radiator and the first radiator are matched to form a breaking joint, the second radiator comprises a third upper frame point, and the first upper frame point is located between the second upper frame point and the third upper frame point; the first feed is electrically connected to the first upper frame point, and the first feed is used for exciting a branch knot between the second upper frame point and the tail end close to the breaking joint and a branch knot between the third upper frame point and the tail end close to the breaking joint to cooperatively radiate satellite frequency band signals; the second feed is electrically connected to the second upper frame point, and the second feed excites the first radiator to radiate the cellular frequency band signal; and the third feed is electrically connected to the third upper frame point, and the third feed excites the first radiator to radiate the honeycomb frequency band signal.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of terminals, and in particular, to an antenna structure and an electronic device. BACKGROUND

[0002] In recent years, satellite communication mobile phones have been launched by major manufacturers, but conventional cellular communication mobile phones need to cover ten or even dozens of frequency bands, and the number of frame radiation branches is large, and the satellite radiation branch of the existing satellite communication mobile phone needs to occupy a separate frame radiation branch, which is not conducive to the layout of the cellular antenna branch. CONTENT OF THE UTILITY MODEL

[0003] The present disclosure provides an antenna structure and an electronic device to solve the deficiencies in the related art.

[0004] According to a first aspect of an embodiment of the present disclosure, an antenna structure is provided, comprising:

[0005] a first radiator, the first radiator comprising a first upper frame point and a second upper frame point;

[0006] a second radiator, the second radiator and the first radiator cooperating to form a gap, the second radiator comprising a third upper frame point, the first upper frame point being located between the second upper frame point and the third upper frame point;

[0007] a first feed, the first feed being electrically connected to the first upper frame point, the first feed being used to excite the branch between the second upper frame point and the end close to the gap, and the branch between the third upper frame point and the end close to the gap to cooperate to radiate satellite frequency band signals;

[0008] a second feed, the second feed being electrically connected to the second upper frame point, the second feed exciting the first radiator to radiate cellular frequency band signals;

[0009] a third feed, the third feed being electrically connected to the third upper frame point, the third feed exciting the first radiator to radiate cellular frequency band signals.

[0010] Optionally, the first radiator and the second radiator are arranged in the same direction, and the difference between the distance between the second upper frame point and the first upper frame point and the distance between the third upper frame point and the first upper frame point is less than or equal to a preset value.

[0011] Optionally, the distance between the second upper frame point and the first upper frame point is equal to the distance between the third upper frame point and the first upper frame point.

[0012] Optionally, further comprising:

[0013] a first switch assembly in series between the first feed and the second feed, the first switch assembly comprising at least one sub-switch in series with a tuning element;

[0014] a second switch assembly in series between the first feed and the third feed, the first switch assembly comprising at least one sub-switch in series with a tuning element;

[0015] wherein the on-off states of the first switch assembly and the second switch assembly are used to adjust the phase of the current.

[0016] Optionally, when the first feed is turned on, the second feed and the third feed are turned off, the first switch assembly is turned on, and the second switch assembly is turned on.

[0017] Optionally, the third feed is used to feed in an electrical signal to excite the second radiator to radiate signals in a high frequency band and / or a 5G frequency band.

[0018] Optionally, the second feed is used to feed in an electrical signal to excite the first radiator to radiate signals in a low frequency band.

[0019] Optionally, the first switch assembly is directly connected between the first feed and the second feed, and the second switch assembly is directly connected between the first feed and the third feed.

[0020] According to a second aspect of the embodiments of the present disclosure, an electronic device is provided, comprising the antenna structure according to any one of the preceding embodiments, and the first radiator and the second radiator are part of a metal frame of the electronic device.

[0021] Optionally, the first radiator and the second radiator are part of a side frame of the electronic device.

[0022] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0023] As can be seen from the above embodiments, in the technical solutions of the present disclosure, on the one hand, satellite frequency band signals and cellular frequency band signals can be radiated in a shared radiation branch manner, which is conducive to the antenna layout of the electronic device, and on the other hand, the relative position layout is conducive to the concentration of the satellite frequency band signal pattern and the central distribution on the radiation branch, thereby improving the communication efficiency.

[0024] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, further serve to explain the principles of the present disclosure.

[0026] Figure 1 is a structural schematic diagram of an antenna structure according to an exemplary embodiment.

[0027] Figure 2 is a structural schematic diagram of another antenna structure according to an exemplary embodiment.

[0028] Figure 3 is an electrical connection schematic diagram of a first feed, a first switch assembly and a second feed according to an exemplary embodiment.

[0029] Figure 4 is an electrical connection schematic diagram of a first feed, a second switch assembly and a third feed according to an exemplary embodiment.

[0030] Figure 5 is a schematic diagram of current distribution and radiation pattern of a satellite antenna according to an exemplary embodiment.

[0031] Figure 6 is a schematic diagram of current distribution and radiation pattern of another satellite antenna according to an exemplary embodiment.

[0032] Figure 7 is a coordinate system schematic diagram of an antenna structure configured to an electronic device according to an exemplary embodiment.

[0033] Figure 8 is a table schematic diagram of left-hand circular polarization radiation pattern of a satellite antenna according to an exemplary embodiment.

[0034] Figure 9 is a table schematic diagram of left-hand circular polarization radiation pattern of another satellite antenna according to an exemplary embodiment. DETAILED DESCRIPTION

[0035] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the embodiments is merely representative of the many possible embodiments consistent with the present disclosure. Instead, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0036] The terminology used in the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in the description of the disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0037] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish one type of information from another type of information. For example, without departing from the scope of the disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining".

[0038] Figure 1 is a structural schematic diagram of an antenna structure according to an exemplary embodiment. As shown in Figure 1 the antenna structure includes a first radiator 1, a second radiator 2, a first feed 3, a second feed 4 and a third feed 5. Wherein, the first radiator 1 and the second radiator 2 cooperate to form a break joint, the break joint is communicated with the antenna clearance, the end of the first radiator 1 away from the second radiator 2 is provided with grounding, such as can be electrically connected with the metal floor through the grounding bar, or also can be grounded through the circuit; the end of the second radiator 2 away from the first radiator 1 is provided with grounding, such as can be electrically connected with the metal floor through the grounding bar, or also can be grounded through the circuit, which can be designed as needed.

[0039] The first radiator 1 includes a first upper frame point 11 and a second upper frame point 12, which are arranged at intervals, and the second radiator 2 includes a third upper frame point 21. Wherein, the second upper frame point 12 is electrically connected with the second feed 4 to excite the first radiator 1 to radiate cellular frequency band signals through the second feed 4, such as can be to excite the first radiator 1 to radiate low frequency band signals through the second feed 4, such as B5 frequency band, B8 frequency band or other frequency bands; the third upper frame point 21 is electrically connected with the third feed 5 to excite the second radiator 2 to radiate cellular frequency band signals through the third feed 5, such as can be to excite the second radiator 2 to radiate medium-high frequency band signals through the third feed 5, such as B40 frequency band, or B41 frequency band or other frequency bands.

[0040] The first upper frame point 11 is located between the second upper frame point 12 and the third upper frame point 21, and is electrically connected to the first feeder 3. Taking advantage of the fact that cellular frequency band signals and satellite frequency band signals do not need to work simultaneously, the first feeder 3 is used to excite the branches from the second upper frame point 12 to the end near the fracture and the branches from the third upper frame point 21 to the end near the fracture to radiate satellite frequency band signals. Moreover, since the first upper frame point 11 is located between the second upper frame point 12 and the third upper frame point 21, after the first feeder 3 feeds in an electrical signal, it is beneficial to generate a uniform current intensity on the branches from the second upper frame point 12 to the end near the fracture and the branches from the third upper frame point 21 to the end near the fracture. This is beneficial to the concentration of the radiation pattern of the satellite frequency band signal and its centered distribution on the radiating branches, thereby improving communication efficiency.

[0041] As can be seen from the above embodiments, in the technical solution of this disclosure, on the one hand, satellite frequency band signals and cellular frequency band signals can be radiated by sharing radiating branches, which is beneficial to the antenna layout of electronic devices; on the other hand, the relative position layout is beneficial to the concentration of the radiation pattern of satellite frequency band signals, and the signals are centrally distributed on the radiating branches, thereby improving communication efficiency. In the following embodiments, the branches radiating satellite frequency band signals are referred to as satellite antennas for description.

[0042] In some embodiments, the first radiator 1 and the second radiator 2 are arranged in the same direction, for example... Figure 1 The first radiator 1 and the second radiator 2 shown are both arranged vertically. The distance between the second upper frame point 12 and the first upper frame point 11 is L1, and the distance between the third upper frame point 21 and the first upper frame point 11 is L2. The difference between L1 and L2 is less than or equal to a preset value, such as 3mm. For example, the difference between L1 and L2 can be 0, 0.5mm, 1.5mm, or 2mm, etc., depending on the specific design requirements. This facilitates the relatively centered setting of the first upper frame point 11, achieving centered radiation of the satellite frequency band signal pattern.

[0043] Understandably, efficiency and gain pattern are important indicators used to describe the performance of satellite antennas. Therefore, in order to control the radiation pattern of satellite frequency band signals, such as... Figure 2 As shown, the antenna structure also includes a first switching assembly 6 and a second switching assembly 7. The first switching assembly 6 is connected in series between the first feed 3 and the second feed 4, and the second switching assembly 7 is connected in series between the first feed 3 and the third feed 5. The first switching assembly 6 includes at least one sub-switch, and the sub-switch is connected in series with a tuning element, such as... Figure 3 As shown, the first switch assembly 6 includes four sub-switches, and each sub-switch is connected in series with a tuning element, such as... Figure 4As shown, the second switch assembly 7 includes four sub-switches, and each sub-switch is connected in series with a tuning element. In this way, by adjusting the on-off state of the first switch assembly 6 and the second switch assembly 7, adjusting the loaded tuning element, the current phase of the satellite frequency band signal can be adjusted, so that the current on the branch between the second upper frame point 12 and the end and the branch between the third upper frame point 21 and the end is as uniform as possible, which is beneficial to improve the directivity and gain of the satellite antenna. Moreover, since the state of the electronic device configured with the antenna structure may be different, such as a horizontal screen state, a holding state, etc., the radiation of the satellite antenna is affected differently in different states, so it is also beneficial to match good directivity and gain in different application scenarios by adjusting the on-off state of the first switch assembly 6 and the second switch assembly 7.

[0044] For example, in free space, the first feed 3 is turned on, and the second feed 4 and the third feed 5 are turned off, at this time the first radiator 1 and the second radiator 2 can be used to serve the radiation of the satellite frequency band signal. Figure 5 As shown, taking the current at the first upper frame point 11 as an example, the maximum current on the branch between the second upper frame point 12 and the end is greater than the current value on the branch between the third upper frame point 21 and the end, the current distribution is uneven, and the current intensity difference is large, which causes the satellite frequency band signal pattern to deviate to the side with a larger current intensity, that is Figure 5 As shown in the middle.

[0045] When the sub-switches of the first switch assembly 6 and the second switch assembly 7 are all turned on in free space, as shown Figure 6 As shown, taking the current at the first upper frame point 11 as an example, the minimum current is increased, and the difference between the maximum current on the branch between the second upper frame point 12 and the end and the current value on the branch between the third upper frame point 21 and the end is reduced, and the current distribution is relatively more uniform, so on the basis of Figure 5 , the satellite frequency band signal pattern is adjusted to the side of the third upper frame point 13, so that the satellite frequency band signal pattern can be basically perpendicular to the radiation and directly radiate outward, improving the satellite communication experience.

[0046] As shown Figures 7-9 For example, taking the case that the antenna structure is configured in a mobile phone, the first radiator 1 and the second radiator 2 are located on the right side edge of the mobile phone, Theta is the angle formed around the X axis, and Phi is the angle formed around the Z axis, wherein Phi = 90° and Theta = 90° direction is the direction perpendicular to the first radiator 1 and the second radiator 2.

[0047] Figure 8The left-hand circular polarized gain pattern of the satellite band signal is shown without introducing the first switch assembly 6 and the second switch assembly 7, Figure 9 The left-hand circular polarized gain pattern of the satellite band signal is shown with introducing the first switch assembly 6 and the second switch assembly 7. Figure 8 And Figure 9 It can be seen that after introducing the first switch assembly 6 and the second switch assembly 7, the Theta angle of the pattern can be improved to be close to about 50°, and the Phi angle still remains at about 90°, obviously making the left-hand circular polarized gain pattern of the satellite band signal more close to 90°, that is, more perpendicular to the first radiator 1 and the second radiator, greatly improving the orientation of the left-hand circular polarized gain pattern of the satellite antenna. In some embodiments, the first switch assembly 6 is directly connected between the first feed 3 and the second feed 4, that is, no other electronic elements are arranged on the circuit path from the first switch assembly 6 to the first feed 3, and no other electronic elements are arranged on the circuit path from the first switch assembly 6 to the second feed 4; the second switch assembly 7 is directly connected between the first feed 3 and the third feed 5, that is, no other electronic elements are arranged on the circuit path from the second switch assembly 7 to the first feed 3, and no other electronic elements are arranged on the circuit path from the second switch assembly 7 to the third feed 5.

[0048] Based on the technical solutions of the present disclosure, an electronic device is also provided, which includes the antenna structure described in any of the preceding embodiments, and the first radiator 1 and the second radiator 2 are both part of the metal frame of the electronic device. For example, in some embodiments, the first radiator 1 and the second radiator 2 can be part of the side frame of the electronic device, at this time, the branch between the second upper frame point 12 and the end and the branch between the third upper frame point 21 and the end can be used as a satellite diversity antenna. In other embodiments, the first radiator 1 and the second radiator 2 can be part of the side frame of the electronic device, at this time, the branch between the second upper frame point 12 and the end and the branch between the third upper frame point 21 and the end can be used as a satellite main set antenna.

[0049] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptive changes of the present disclosure following the general principles of the present disclosure and including common knowledge or conventional technical means in the art not disclosed in the present disclosure. The specification and examples are only considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0050] It should be understood that the present disclosure is not limited to the precise structures described above and shown in the drawings and that various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the claims appended hereto.

Claims

1. An antenna structure, characterized by The antenna structure comprises: a first radiator comprising a first upper frame point and a second upper frame point; a second radiator cooperating with the first radiator to form a split seam, the second radiator comprising a third upper frame point, the first upper frame point being located between the second upper frame point and the third upper frame point; a first feed electrically connected to the first upper frame point, the first feed being configured to excite a branch between the second upper frame point and an end close to the split seam and a branch between the third upper frame point and an end close to the split seam to radiate a satellite frequency band signal; a second feed electrically connected to the second upper frame point, the second feed being configured to excite the first radiator to radiate a cellular frequency band signal; a third feed electrically connected to the third upper frame point, the third feed being configured to excite the first radiator to radiate a cellular frequency band signal.

2. The antenna structure of claim 1, wherein, The first radiator and the second radiator are arranged in the same direction, and a difference between a distance between the second upper frame point and the first upper frame point and a distance between the third upper frame point and the first upper frame point is less than or equal to a preset value.

3. The antenna structure of claim 2, wherein, The distance between the second upper frame point and the first upper frame point is equal to the distance between the third upper frame point and the first upper frame point.

4. The antenna structure of claim 1, wherein, The antenna structure further comprises: a first switch assembly connected in series between the first feed and the second feed, the first switch assembly comprising at least one sub-switch connected in series with a tuning element; a second switch assembly connected in series between the first feed and the third feed, the second switch assembly comprising at least one sub-switch connected in series with a tuning element; The on-off states of the first switch assembly and the second switch assembly are configured to adjust a current phase.

5. The antenna structure of claim 4, wherein, When the first feed is turned on, the second feed and the third feed are turned off, and the first switch assembly and the second switch assembly are all turned on.

6. The antenna structure of claim 4, wherein, The third feed is configured to feed an electrical signal to excite the second radiator to radiate a medium-high frequency band signal and / or a 5G frequency band signal.

7. The antenna structure of claim 4, wherein, The second feed is configured to feed an electrical signal to excite the first radiator to radiate a low frequency band signal.

8. The antenna structure of claim 4, wherein, The first switch assembly is directly connected between the first feed and the second feed, and the second switch assembly is directly connected between the first feed and the third feed.

9. An electronic device, comprising: The antenna structure comprises the antenna structure according to any one of claims 1-8, and the first radiator and the second radiator are part of a metal frame of the electronic device.

10. The electronic device of claim 9, wherein, The first radiator and the second radiator are part of a side frame of the electronic device.

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