Antenna assembly and electronic equipment

Abstract

The invention provides electronic equipment. The electronic equipment comprises a frame, a first antenna branch knot, a second antenna branch knot and a first feed source, the first antenna branch knot is arranged in the electronic equipment; and the second antenna branch knot is arranged on the frame, and the second antenna branch knot and the first antenna branch knot are arranged at an interval and are coupled. The first feed source is connected with one of the first antenna branch knot and the second antenna branch knot, and one of the first antenna branch knot and the second antenna branch knot works in a first frequency band under excitation of the first feed source. And the other one of the first antenna branch knot and the second antenna branch knot is coupled and excited to work at the first frequency band. The invention also provides an antenna assembly. The antenna radiation performance can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an antenna assembly and an electronic device having the antenna assembly. Background Art

[0002] At present, with the popularization of 5G communication technology, people's communication experience is getting better and better, but the number of antennas is also increasing. With the popularization of full-screen and curved screens, the headroom left for antennas is getting less and less. In current electronic devices, in order to solve the problem of less and less headroom, some antennas are set at the border position as border antennas. However, due to the limited space of the border and the requirements of the appearance design, the antennas of the electronic device cannot all be designed on the border, and often a built-in antenna is set inside the electronic device, and the performance of the built-in antenna set inside the electronic device is often poor. In some cases, the border antenna is also easy to be held by the user, which affects the antenna performance. Summary of the invention

[0003] The present application provides an antenna assembly and an electronic device to solve the above problems.

[0004] In a first aspect, an electronic device is provided, the electronic device comprising a frame, a first antenna branch, a second antenna branch, and a first feed source. The first antenna branch is arranged inside the electronic device; the second antenna branch is arranged in the frame, wherein the second antenna branch is spaced apart and coupled with the first antenna branch. The first feed source is connected to one of the first antenna branch and the second antenna branch, one of the first antenna branch and the second antenna branch operates in a first frequency band under the excitation of the first feed source, and couples and excites the other of the first antenna branch and the second antenna branch to operate in the first frequency band.

[0005] In a second aspect, an antenna assembly is also provided, the antenna assembly comprising a first antenna branch, a second antenna branch and a first feed source. The second antenna branch is spaced apart from and coupled to the first antenna branch; the first feed source is connected to one of the first antenna branch and the second antenna branch, one of the first antenna branch and the second antenna branch operates in a first frequency band under the excitation of the first feed source, and couples and excites the other of the first antenna branch and the second antenna branch to operate in the first frequency band.

[0006] In the electronic device and antenna assembly of the present application, the first antenna branch is arranged inside the electronic device, the second antenna branch is arranged on the frame, and the first feed source is connected to one of the first antenna branch and the second antenna branch, and one of the first antenna branch and the second antenna branch operates in the first frequency band under the excitation of the first feed source, and couples and excites the other of the first antenna branch and the second antenna branch to operate in the first frequency band. Therefore, when the first antenna branch operates in the first frequency band, the second antenna branch can be used as a coupled resonant branch of the first antenna branch and also resonates in the first frequency band, thereby improving the radiation performance of the first antenna branch arranged inside the electronic device, or when the second antenna branch operates in the first frequency band, the first antenna branch can be used as a coupled resonant branch of the second antenna branch and also resonates in the first frequency band, thereby improving the radiation performance of the second antenna branch arranged on the frame, thereby, even if the electronic device is in a gripping state and the second antenna branch is gripped, it can be ensured that the radiation performance meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0008] Figure 1 The present invention is a plan view schematically showing part of the internal structure of an electronic device in some embodiments of the present application.

[0009] Figure 2 Another schematic plan view illustrating a portion of the internal structure of an electronic device in some embodiments of the present application.

[0010] Figure 3 It is a further schematic plan view of an electronic device in some embodiments of the present application.

[0011] Figure 4 It is another further schematic plan view of an electronic device in some embodiments of the present application.

[0012] Figure 5 It is yet another schematic plan view of an electronic device in some embodiments of the present application.

[0013] Figure 6 It is a schematic diagram of coupling energy formed at the second antenna branch when the first antenna branch in the electronic device couples and excites the second antenna branch.

[0014] Figure 7Another schematic diagram of coupling energy formed at the second antenna branch when the first antenna branch in the electronic device couples and excites the second antenna branch.

[0015] Figure 8 A schematic diagram comparing the radiation efficiency of an electronic device in some embodiments of the present application and a reference electronic device when operating in a first frequency band.

[0016] Fig. 9 Antenna patterns of the electronic device in some embodiments of the present application and a reference electronic device when operating in a third frequency band.

[0017] Fig.10 It is a partial schematic diagram of an electronic device in some embodiments of the present application.

[0018] Fig.11 This is a structural block diagram of an electronic device in some embodiments of the present application. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "thickness", "width", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than implying or indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The term "connection" in this application, in the absence of other instructions, mainly refers to physical structural connection, and in the case of instructions, it may also include the meanings of electrical connection, direct connection or indirect connection. In the description of the embodiments of the present invention, the terms "first", "second", etc. are not specific, but are used to distinguish objects of the same name. In the case of instructions, the objects of the same name referred to by the terms "first", "second", etc. may be the same object. Among them, in this application, the term "A and / B" includes "A", "B" and "A and B". Among them, the term "connection" in this application includes the meanings of "electrical connection", "direct connection" and / or "indirect connection".

[0021] See also Figure 1 , is a schematic plan view showing a part of the internal structure of the electronic device 100 in some embodiments of the present application. Figure 1As shown, the electronic device 100 includes a frame 1, a first antenna branch 2, a second antenna branch 3 and a first feed source 4. The first antenna branch 2 is arranged inside the electronic device 100, and the second antenna branch 3 is arranged in the frame 1, wherein the second antenna branch 3 is spaced apart and coupled with the first antenna branch 2. The first feed source 4 is connected to one of the first antenna branch 2 and the second antenna branch 3, and one of the first antenna branch 2 and the second antenna branch 3 operates in the first frequency band under the excitation of the first feed source 4, and couples and excites the other of the first antenna branch 2 and the second antenna branch 3 to operate in the first frequency band.

[0022] Thus, in the present application, the first antenna branch 2 is arranged inside the electronic device 100, the second antenna branch 3 is arranged in the frame 1, and the first feed source 4 is connected to the first antenna branch 2 and one of the second antenna branch 3. One of the first antenna branch 2 and the second antenna branch 3 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the other of the first antenna branch 2 and the second antenna branch 3 to operate in the first frequency band. Thus, when the first antenna branch 2 operates in the first frequency band, the second antenna branch 3 can be used as a coupled resonant branch of the first antenna branch 2 and also resonate in the first frequency band, thereby improving the radiation performance of the first antenna branch 2 arranged inside the electronic device 100. Alternatively, when the second antenna branch 3 operates in the first frequency band, the first antenna branch 2 can be used as a coupled resonant branch of the second antenna branch 3 and also resonate in the first frequency band, thereby improving the radiation performance of the second antenna branch 3 arranged in the frame 1. Therefore, even if the electronic device 100 is in a holding state and the second antenna branch 3 is held, it can be ensured that the radiation performance meets the requirements.

[0023] Among them, in this application, "A" branch working in the "B" frequency band may refer to that "A" supports the reception and / or transmission of electromagnetic wave signals in the "B" frequency band. For example, the first antenna branch 2 or the second antenna branch 3 working in the first frequency band may refer to that the first antenna branch 2 or the second antenna branch 3 supports the reception and / or transmission of electromagnetic wave signals in the first frequency band.

[0024] In some embodiments, the projection of the first antenna branch 2 on the frame 1 at least partially overlaps with the second antenna branch 3. That is, the projection of the first antenna branch 2 on the side where the second antenna branch 3 is located at least partially overlaps with the second antenna branch 3.

[0025] Thus, since the projection of the first antenna branch 2 on the frame 1 at least partially overlaps with the second antenna branch 3, that is, the projection of the first antenna branch 2 on the side where the second antenna branch 3 is located at least partially overlaps with the second antenna branch 3, the first antenna branch 2 and the second antenna branch 3 are at least partially opposite to each other, and can be coupled to each other at least through the opposite part.

[0026] In some embodiments, the second antenna branch 3 and the first antenna branch 2 are spaced apart and coupled, which means that the second antenna branch 3 and the first antenna branch 2 are adjacent and spaced apart and coupled to each other. The second antenna branch 3 and the first antenna branch 2 are adjacent and spaced apart, which means that the distance between the second antenna branch 3 and the directly facing part of the first antenna branch 2 is less than a preset distance, and the preset distance can be the maximum distance that satisfies the coupling between the second antenna branch 3 and the first antenna branch 2, for example, 1 cm, 0.8 cm, etc.

[0027] See also Figure 2 , is another plan view schematically showing part of the internal structure of the electronic device 100 in some embodiments of the present application.

[0028] like Figure 2 As shown, the electronic device 100 also includes a second feed source 5, which is connected to the first antenna branch 2 and the other one of the second antenna branch 3. The first antenna branch 2 and the other one of the second antenna branch 3 also operate in the second frequency band under the excitation of the second feed source 5.

[0029] The second frequency band is different from the first frequency band.

[0030] That is, in some embodiments, in addition to being coupled and excited to work in the first frequency band to improve the antenna performance in the first frequency band, the other of the first antenna branch 2 and the second antenna branch 3 can also work in the second frequency band under the excitation of the second feed source 5. Thus, the supported frequency bands can be effectively improved to meet the requirements of multiple frequency bands.

[0031] Among them, in this application, the "A" frequency band is different from the "B" frequency band, which means that the frequency ranges corresponding to the "A" frequency band and the "B" frequency band are different, including the situation that the frequency ranges corresponding to the "A" frequency band and the "B" frequency band do not overlap at all, or only partially overlap.

[0032] in, Figure 1 and Figure 2 In the example, the connection between the first feed source 4 and the first antenna branch 2 is used for illustration. Figure 2In the figure, the connection between the second feed source and the second antenna branch 3 is taken as an example for illustration.

[0033] That is, in some embodiments, the first feed source 4 is connected to the first antenna branch 2, and the first antenna branch 2 operates in the first frequency band under the excitation of the first feed source 4, and couples and excites the second antenna branch 3 to operate in the first frequency band. Therefore, when the first antenna branch 2 located inside the electronic device 100 operates in the first frequency band, the second antenna branch 3 can be used as a coupled resonant branch of the first antenna branch 2, and also resonates in the first frequency band, so that the radiation performance of the first antenna branch 2 disposed inside the electronic device 100 can be improved.

[0034] In some embodiments, the first feed source 4 may also be connected to the second antenna branch 3, and one of the second antenna branches 3 operates in the first frequency band under the excitation of the first feed source 4, and couples and excites the first antenna branch 2 to operate in the first frequency band. Thus, when the second antenna branch 3 operates in the first frequency band, the first antenna branch 2 located inside the electronic device 100 can be used as a coupled resonant branch of the second antenna branch 3, and also resonates in the first frequency band, so that the radiation performance of the second antenna branch 3 arranged on the frame 1 can be improved.

[0035] In some embodiments, when the other of the first antenna branch 2 and the second antenna branch 3 is also operating in the second frequency band under the excitation of the second feed source 5, the other of the first antenna branch 2 and the second antenna branch 3 can also be further coupled to excite one of the first antenna branch 2 and the second antenna branch 3 to also resonate in the second frequency band, thereby improving the radiation performance of the second frequency band. For example, the first feed source 4 is connected to the first antenna branch 2, the first antenna branch 2 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the second antenna branch 3 to operate in the first frequency band, the second antenna branch 3 operates in the second frequency band under the excitation of the second feed source 5, and the second antenna branch 3 can also be further coupled to excite the first antenna branch 2 to also resonate in the second frequency band.

[0036] That is, in some embodiments, the first antenna branch 2 and the second antenna branch 3 can respectively operate in corresponding frequency bands under the excitation of corresponding feed sources, and can also couple with each other to excite each other to operate in corresponding frequency bands, thereby acting as coupled resonant branches to enhance the radiation performance of each other's frequency bands.

[0037] The above embodiments will be described in more detail later.

[0038] In some embodiments, Figure 2 As shown, the first antenna branch 2 includes a first feeding point F1, the first feed source 4 is connected to the first feeding point F1 of the first antenna branch 2, the first antenna branch 2 operates in a first frequency band under the excitation of the first feed source 4, and couples to excite the second antenna branch 3 to operate in the first frequency band, the second antenna branch 3 includes a first end 3a and a second end 3b relative to each other, at least the first end 3a is an open end, at least a portion of the first antenna branch 2 is adjacent to and coupled with a first target branch portion Z1 of the second antenna branch 3 including the first end 3a, so as to excite the first target branch portion Z1 of the second antenna branch 3 to operate in the first frequency band.

[0039] That is, in some embodiments, the second antenna branch 3 may include a first end 3a and a second end 3b relative to each other, at least the first end 3a is an open end, the first antenna branch 2 and the second antenna branch 3 are spaced apart and coupled, at least a portion of the first antenna branch 2 may be adjacent to and coupled with the first target branch portion Z1 of the second antenna branch 3 including the first end 3a, the second antenna branch 3 may be coupled and excited in the first frequency band, or the first target branch portion Z1 of the second antenna branch 3 may be coupled and excited to operate in the first frequency band.

[0040] That is, in some embodiments, the first feed source 4 is connected to the first antenna branch 2, the first antenna branch 2 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the second antenna branch 3 to operate in the first frequency band, and specifically, at least a portion of the first antenna branch 2 is adjacent to and coupled with the first target branch portion Z1 of the second antenna branch 3 including the first end 3a, the first antenna branch 2 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the first target branch portion Z1 of the second antenna branch 3 to operate in the first frequency band.

[0041] Thus, by using the first target branch part Z1 of the second antenna branch 3, which is at least a part of the second antenna branch 3, as a coupled resonant branch to support the first frequency band, it is only necessary to make the electrical length of the first target branch part Z1 meet the resonance requirement of the first frequency band, allowing the second antenna branch 3 itself to operate in other frequency bands.

[0042] In some embodiments, the electrical length of the first antenna branch 2 and the electrical length of the first target branch portion Z1 both satisfy the requirement of resonance in the first frequency band. Thus, the first antenna branch 2 as a whole can resonate in the first frequency band and thus work in the first frequency band, and the first target branch portion Z1 can be coupled and excited to resonate in the first frequency band and thus also work in the first frequency band.

[0043] In the present application, the electrical length of the first antenna branch 2 and the electrical length of the first target branch part Z1 and other branches can be the electrical length of the first antenna branch 2 and the electrical length of the first target branch part Z1 and other branches themselves, for example, equal to the electrical length of the first antenna branch 2 and the physical length of the first target branch part Z1 and other branches themselves. Alternatively, the electrical length of the first antenna branch 2 and the electrical length of the first target branch part Z1 and other branches can also be equivalent electrical lengths under the matching of corresponding matching units.

[0044] That is, in the present application, the electrical length of a certain branch may be the physical length of the branch, or, in some embodiments, the branch may also be connected to a matching unit, and the electrical length of the branch may also be an equivalent electrical length with the cooperation of the matching unit.

[0045] When a branch is connected to a matching unit, the matching unit may be connected between a corresponding feed source and a feeding point, or between a ground point and a ground, so that corresponding matching adjustment can be achieved, and the electrical length of the branch meets the resonance requirements of the corresponding frequency band. The matching unit may include a capacitor and / or an inductor, for example, a plurality of capacitors and / or inductors connected in series or in parallel.

[0046] In some embodiments, Figure 2 As shown, the second end 3b of the second antenna branch 3 is connected to the ground GND and is grounded, the second antenna branch 3 includes a second feeding point F2, the second feeding point F2 is used to connect to the second feed source 5, the second feeding point F2 is located between the first end 3a and the second end 3b, and the first target branch part Z1 is the branch part of the second antenna branch 3 between the second feeding point F2 and the first end 3a.

[0047] That is, in some embodiments, the first target branch portion Z1 may specifically be a branch portion located between the second feeding point F2 of the second antenna branch 3 and the first end 3 a.

[0048] In some embodiments, the second antenna branch 3 can operate in the second frequency band under the excitation of the second feed source 5. Thus, in some embodiments, the second antenna branch 3 as a whole can operate in the second frequency band under the excitation of the second feed source 5, and the first target branch portion Z1 between the second feed point F2 and the first end 3a of the second antenna branch 3 can be coupled and excited to operate in the first frequency band, and the second antenna branch 3 can operate in the second frequency band in addition to effectively improving the radiation performance of the first frequency band.

[0049] The overall electrical length of the second antenna branch 3 satisfies the requirement of resonance in the second frequency band.

[0050] In some embodiments, when the second antenna branch 3 operates in the second frequency band under the excitation of the second feed source 5, it can specifically operate in a quarter-wavelength resonance mode and operate in the second frequency band. The second antenna branch 3 forms an inverted F antenna (IFA) and operates in a quarter-wavelength resonance mode. In some embodiments, the second antenna branch 3 can be 1 / 4 of the wavelength corresponding to the second frequency band, and meet the requirement of resonance in the second frequency band.

[0051] In some embodiments, the first target branch portion Z1 of the second antenna branch 3 may form a monopole antenna, wherein the monopole antenna may also operate in a quarter-wavelength resonance mode and operate in the first frequency band. In some embodiments, the electrical length of the monopole antenna may be 1 / 4 of the wavelength corresponding to the first frequency band, thereby satisfying the requirement of resonance in the first frequency band.

[0052] Among them, Figure 2 As shown, in some embodiments, the first antenna branch 2 includes a third end 2a and a fourth end 2b relative to each other, at least the third end 2a is an open end, at least the second target branch portion Z2 in the first antenna branch 2 is adjacent to and coupled with the first target branch portion Z1, and the second target branch portion Z2 also operates in the second frequency band under the coupling excitation of the first target branch portion Z1, wherein the second target branch portion Z2 is the portion including the third end 2a.

[0053] That is, in some embodiments, the first antenna branch 2 operates in the first frequency band under the excitation of the first feed source 4, and couples and excites the second antenna branch 3 to operate in the first frequency band, and the second antenna branch 3 operates in the second frequency band under the excitation of the second feed source 5, and the second antenna branch 3 can also further couple and excite the first antenna branch 2 to resonate in the second frequency band. Specifically, at least the second target branch portion Z2 including the third end 2a in the first antenna branch 2 is adjacent to and coupled with the first target branch portion Z1 including the first end 3a, so that the first target branch portion Z1 can be coupled and excited to operate in the first frequency band, and the second target branch portion Z2 can also be coupled and excited to operate in the second frequency band.

[0054] Among them, Figure 2As shown, in some embodiments, the fourth end 2b of the first antenna branch 2 can be a ground terminal, and the first antenna branch 2 forms an inverted F antenna, and works in a quarter-wavelength resonance mode. In some embodiments, the first antenna branch 2 can be 1 / 4 of the wavelength corresponding to the first frequency band, and meet the requirement of resonance in the first frequency band.

[0055] In some embodiments, the second target branch portion Z2 may also be a branch portion between the open-circuit third end 2a of the first antenna branch 2 and the first feeding point F1.

[0056] The second target branch portion Z2 between the open-circuit third end 2a of the first antenna branch 2 and the first feeding point F1 also forms a monopole antenna, and the electrical length satisfies the resonance in the second frequency band.

[0057] In some embodiments, as described above, the first feed source 4 may also be connected to the second antenna branch 3, and the second antenna branch 3 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the first antenna branch 2 to operate in the first frequency band, for example, couples to excite the second target branch part Z2 to operate in the first frequency band. At this time, the second feed source 5 may be connected to the first antenna branch 2, and the first antenna branch 2 operates in the second frequency band under the excitation of the second feed source 5. In some embodiments, the first antenna branch 2 may also couple to excite the second antenna branch 3 to operate in the second frequency band, for example, couples to excite the first target branch part Z1 to operate in the second frequency band.

[0058] That is, in some embodiments, the electrical lengths of the second antenna branch 3 and the second target branch portion Z2 can both satisfy resonance in the first frequency band, and the electrical lengths of the first antenna branch 2 and the first target branch portion Z1 can both satisfy resonance in the second frequency band.

[0059] In some embodiments, the frequency band in which the first antenna branch 2 works under the excitation of the corresponding feed source may be a WiFi frequency band or a Bluetooth frequency band, and the frequency band in which the second antenna branch 3 works under the excitation of the corresponding feed source may be a medium-low frequency band. The WiFi frequency band may include a WiFi 2.4G frequency band and / or a WiFi 5G frequency band, and the medium-low frequency band may include low frequency bands such as B5 and B8, and medium frequency bands such as B40 and B41. When the first antenna branch 2 is connected to the first feed source 4 and works in the first frequency band under the excitation of the first feed source 4, the first frequency band may be a WiFi frequency band or a Bluetooth frequency band, and when the first antenna branch 2 is connected to the second feed source 5 and works in the second frequency band under the excitation of the second feed source 5, the second frequency band may be a WiFi frequency band or a Bluetooth frequency band. Correspondingly, when the second antenna branch 3 is connected to the first feed source 4 and operates in the first frequency band under the excitation of the first feed source 4, the first frequency band may be a medium-low frequency band, and when the second antenna branch 3 is connected to the second feed source 5 and operates in the second frequency band under the excitation of the second feed source 5, the second frequency band may be a medium-low frequency band.

[0060] In the present application, the first feed source 4 is connected to the first antenna branch 2, the first antenna branch 2 operates in the first frequency band under the excitation of the first feed source 4, and couples and excites the second antenna branch 3 to operate in the first frequency band, for example, couples and excites the second target branch part Z2 to operate in the first frequency band, and so on.

[0061] See also Figure 3 , is a further schematic plan view of the electronic device 100 in some embodiments of the present application. Figure 3 As shown, the electronic device 100 also includes a third antenna branch 6 and a third feed source 7. The third antenna branch 6 is arranged on the frame 1 and is spaced apart and coupled with the first antenna branch 2. The third antenna branch 6 operates in a third frequency band under the excitation of the third feed source 7, and couples and excites the first antenna branch 2 to operate in the third frequency band.

[0062] That is, in some embodiments, the first antenna branch 2 can be further coupled with the third antenna branch 6 provided on the frame 1, and the third antenna branch 6 operates in the third frequency band under the excitation of the third feed source 7, and couples and excites the first antenna branch 2 to operate in the third frequency band. Thus, the first antenna branch 2 can also serve as a coupled resonant branch of the third antenna branch 6, thereby improving the radiation performance in the third frequency band.

[0063] In some embodiments, Figure 3As shown, the first antenna branch 2 includes a third end 2a and a fourth end 2b opposite to each other, and the third end 2a is close to the second antenna branch 3, and the fourth end 2b is close to the third antenna branch 6. In some embodiments, Figure 3 As shown, the fourth end 2b is an open end, and the third target branch portion Z3 between the fourth end 2b and the first feeding point F1 is substantially opposite to at least a portion of the third antenna branch 6, and is coupled to the third antenna branch 6. Therefore, the third target branch portion Z3 between the fourth end 2b of the first antenna branch 2 and the first feeding point F1 can operate in the third frequency band under the coupling excitation of the third antenna branch 6, thereby improving the radiation performance of the third frequency band.

[0064] In some embodiments, the third end 2a is connected to the ground GND to be grounded. That is, the first antenna branch 2 forms an inverted-F antenna.

[0065] Wherein, when the third end 2a is connected to the ground GND and grounded, the first antenna branch 2 is coupled with the second antenna branch 3, the first antenna branch 2 is connected to the corresponding feed source, and works in the corresponding frequency band under the excitation of the corresponding feed source, and further couples and excites the second antenna branch 3 to work in the corresponding frequency band, at this time, the second antenna branch 3 is connected to another corresponding feed source, and when it works in another corresponding frequency band under the excitation of the other corresponding feed source, the first antenna branch 2 can be uncoupled and excited to work in the other corresponding frequency band. That is, for example, the first antenna branch 2 is connected to the first feed source 4, and works in the first frequency band under the excitation of the first feed source 4, and further couples and excites the second antenna branch 3 to work in the first frequency band, the second antenna branch 3 is connected to the second feed source 5, and when it works in the second frequency band under the excitation of the second feed source 5, the first antenna branch 2 can be uncoupled and excited to work in the second frequency band.

[0066] in, Figure 3 The main difference between the electronic device 100 shown and the aforementioned embodiment is that the third antenna branch 6 and the third feed source 7 are further illustrated, and the third end 2a of the first antenna branch 2 is the ground end, and the fourth end 2b is the open end. For other structures, please refer to the relevant introduction in the aforementioned embodiment.

[0067] See also Figure 4 , is another further plan schematic diagram of the electronic device 100 in some embodiments of the present application.

[0068] in, Figure 4 and Figure 3 The difference is that the third end 2a and the fourth end 2b of the first antenna branch 2 are both open ends. The first antenna branch 2 forms a half-wavelength dipole antenna.

[0069] The third end 2a of the first antenna branch 2 is close to the second antenna branch 3, and the fourth end 2b is close to the third antenna branch 6. The branch portion between the fourth end 2b and the first feeding point F1 is roughly opposite to at least part of the third antenna branch 6, and is coupled to the third antenna branch 6. Therefore, the branch portion between the fourth end 2b of the first antenna branch 2 and the first feeding point F1 can work in the third frequency band under the coupling excitation of the third antenna branch 6, and improve the radiation performance of the third frequency band. In addition, the branch portion between the third end 2a and the first feeding point F1, that is, the aforementioned second target branch portion Z2, is roughly opposite to at least part of the second antenna branch 3, and is coupled to the second antenna branch 3. Therefore, the branch portion between the third end 2a of the first antenna branch 2 and the first feeding point F1 can also work in the second frequency band under the coupling excitation of the second antenna branch 3, and improve the radiation performance of the second frequency band.

[0070] That is, in some embodiments, both ends of the first antenna branch 2 may be open ends, so that the first antenna branch 2 can not only work in the corresponding frequency band, such as the first frequency band, but also couple and excite the second antenna branch 3 to work in the first frequency band. In addition, when the second antenna branch 3 works in the second frequency band under the excitation of the second feed source 5, and the third antenna branch 6 works in the third frequency band under the excitation of the third feed source 7, the branch parts of the first antenna branch 2 corresponding to the second antenna branch 3 and the third antenna branch 6, respectively, can also be coupled and excited to work in the second frequency band and the third frequency band, respectively, so as to improve the radiation performance of the second frequency band and the third frequency band.

[0071] in, Figure 4 The main difference between the electronic device 100 shown and the aforementioned embodiment is that the third antenna branch 6 and the third feed source 7 are further illustrated, and the third end 2a and the fourth end 2b of the first antenna branch 2 are both open ends. For other structures, please refer to the relevant introduction in the aforementioned embodiment.

[0072] In some embodiments, Figure 1-Figure 4 As described, the first antenna branch 2 and the second antenna branch 3 are both in the shape of straight strips, the first antenna branch 2 is parallel to the second antenna branch 3, and at least part of the first antenna branch 2 is adjacent to at least part of the second antenna branch 3 and is arranged at intervals. In some embodiments, as Figure 3 and Figure 4As shown, when the electronic device 100 further includes the third antenna branch 6, the third antenna branch 6 is also in a straight strip shape and is also parallel to the first antenna branch 2, and a portion of the first antenna branch 2 is also adjacent to and spaced from at least a portion of the second antenna branch 3. Figure 3-Figure 4 As shown, the extension direction of the third antenna branch 6 can be the same as the extension direction of the second antenna branch 3, and the third antenna branch 6 and the second antenna branch 3 can be arranged at intervals along their extension directions, that is, the third antenna branch 6 and the second antenna branch 3 are arranged roughly in a "one" shape, and the third antenna branch 6 and the second antenna branch 3 are spaced apart with a gap between them.

[0073] In some embodiments, Figure 3 and Figure 4 As shown, the third antenna branch 6 may include a fifth end 6a and a sixth end 6b opposite to each other, wherein the fifth end 6a is adjacent to and spaced from the first end 3a of the second antenna branch 3. The projection of the first antenna branch 2 on the frame 1 may overlap with the first target branch portion Z1 of the second antenna branch 3 including the first end 3a, and may also overlap with the branch portion of the third antenna branch 6 including the fifth end 6a, so that the first antenna branch 2 is coupled with the second antenna branch 3 and the third antenna branch 6.

[0074] Wherein, in some embodiments, Figure 3 and Figure 4 As shown, the third antenna branch 6 includes a third feeding point F3, the third feeding point F3 is located between the fifth end 6a and the sixth end 6b, and the third feeding point F3 is connected to the third feed source 7. The third antenna branch 6 operates in the third frequency band under the excitation of the third feed source 7.

[0075] Wherein, in some embodiments, Figure 3 and Figure 4 As shown, the fifth end 6a is an open-circuit end, the sixth end 6b is a ground end, the third antenna branch 6 can also constitute an inverted F antenna, and the third antenna branch 6 can operate in a quarter-wavelength resonance mode and operate in the third frequency band. That is, the electrical length of the third antenna branch 6 can be 1 / 4 of the wavelength corresponding to the third frequency band, and can resonate in the third frequency band.

[0076] Among them, in the present application, by setting a number of antenna branches as inverted-F antennas, since the inverted-F antennas work in a quarter-wavelength resonance mode, the size of the antenna branches can be effectively reduced and the space occupied can be reduced.

[0077] Among them, Figure 3 and Figure 4 As shown in the figures, the electronic device 100 includes a top end D1, a bottom end D2 and two side ends D3, and the third antenna branch 6 and the second antenna branch 3 can be disposed at one of the side ends D3.

[0078] That is, in some embodiments, taking the third antenna branch 6 and the second antenna branch 3 as an example, both of which are straight strips, the third antenna branch 6 and the second antenna branch 3 can be set at one of the side ends D3. Since the side end D3 of the electronic device 100 is longer, it can meet the setting requirements of the multiple branches.

[0079] In some embodiments, Figure 3 and Figure 4 As shown in the figure, the third antenna branch 6 is closer to the top D1 of the electronic device 100 than the second antenna branch 3 .

[0080] In some embodiments, the third frequency band may include medium and high frequency bands and / or 5G NR frequency bands such as N77 and N78.

[0081] Obviously, the specific frequency bands of the aforementioned first frequency band, second frequency band and third frequency band are only examples, and the first frequency band, second frequency band and third frequency band can be any suitable frequency bands.

[0082] See also Figure 5 , is yet another plan view schematic diagram of the electronic device 100 in some embodiments of the present application.

[0083] Among them, Figure 5 As shown, the electronic device 100 also includes a coupling transition branch 8, and the coupling transition branch 8 is located at least between the first antenna branch 2 and the second antenna branch 3, and is used to at least improve the coupling degree between the first antenna branch 2 and the second antenna branch 3, thereby improving the coupling energy and improving the efficiency of the coupling excitation.

[0084] That is, in some embodiments, the coupling transition branch 8 may be located at least in the coupling gap between the first antenna branch 2 and the second antenna branch 3 .

[0085] in, Figure 5 For Figure 3 Based on the structure of the electronic device 100 shown in FIG. Figure 5As shown, the electronic device 100 also includes the aforementioned third antenna branch 3, and the coupling transition branch 8 can also extend between the first antenna branch 2 and the third antenna branch 6, and is used to further improve the coupling degree between the first antenna branch 2 and the third antenna branch 6, thereby improving the efficiency of the coupling excitation between the first antenna branch 2 and the third antenna branch 6.

[0086] Obviously, the coupling transition branch 8 can be added on the basis of any of the above embodiments. Figure 5 Only in Figure 3 The structure of the electronic device 100 shown is illustrated by taking an example where the coupling transition branch 8 is further added to the structure of the electronic device 100.

[0087] The coupling transition branch 8 may be a suspended branch, that is, not electrically connected to other structures. The coupling transition branch 8 may be supported on an insulating support and at least located in the coupling gap between the first antenna branch 2 and the second antenna branch 3 .

[0088] In some embodiments, the longer the length of the coupling transition branch 8 in the coupling gap between the first antenna branch 2 and the second antenna branch 3 is, the better the coupling degree is improved, so that the energy coupled thereto is larger. Similarly, the longer the length of the coupling transition branch 8 in the coupling gap between the first antenna branch 2 and the third antenna branch 6 is, the better the coupling degree is improved, so that the energy coupled thereto is larger. Therefore, in some embodiments, the coupling transition branch 8 may extend in the entire coupling gap between the first antenna branch 2 and the second antenna branch 3, that is, in the coupling gap formed by the branch portions directly facing the first antenna branch 2 and the second antenna branch 3, at least a portion of the coupling transition branch 8 is completely provided, and the projection of the branch portions directly facing the first antenna branch 2 and the second antenna branch 3 on the frame 1 may coincide with the projection of the portion of the coupling transition branch 8 located in the coupling gap on the frame 1. In some embodiments, when the coupling transition branch 8 also extends between the first antenna branch 2 and the third antenna branch 6, the coupling transition branch 8 may also extend in the entire coupling gap between the first antenna branch 2 and the third antenna branch 6, that is, in another coupling gap formed by the branch parts directly opposite to the first antenna branch 2 and the third antenna branch 6, at least another part of the coupling transition branch 8 is completely arranged, and the projection of the branch parts directly opposite to the first antenna branch 2 and the third antenna branch 6 on the frame 1 may coincide with the projection of the part of the coupling transition branch 8 located in the other coupling gap on the frame 1.

[0089] Please also read Figure 6 as well as Figure 7,in, Figure 6 is a schematic diagram of coupling energy formed at the second antenna branch 3 when the first antenna branch 2 in the electronic device 100 couples and excites the second antenna branch 3, Figure 7 It is another schematic diagram of the coupling energy formed at the second antenna branch 3 when the first antenna branch 2 in the electronic device 100 couples and excites the second antenna branch 3 .

[0090] in, Figure 6 and Figure 7 Schematic diagrams of coupling energy obtained by simulation tests when the electronic device 100 includes coupling transition branches 8 of different lengths.

[0091] in, Figure 6 In the embodiment, the coupling transition branch 8 included in the electronic device 100 is shorter in length and may only extend to a portion of the coupling gap between the first antenna branch 2 and the second antenna branch 3. Figure 7 In the embodiment, the coupling transition branch 8 included in the electronic device 100 is longer and extends in the entire coupling gap between the first antenna branch 2 and the second antenna branch 3 .

[0092] in, Figure 6 and Figure 7 In FIG. 1 , the redder the color of the area corresponding to the second antenna branch 3, the greater the coupled radiation energy. Figure 6 and Figure 7 It can be seen that when Figure 7 When the coupling transition branch included in the electronic device 100 extends in the entire coupling gap between the first antenna branch 2 and the second antenna branch 3, the coupling energy / radiation energy coupled to the second antenna branch 3 is significantly increased.

[0093] Therefore, in some embodiments, the coupling transition branch 8 may extend in the entire coupling gap between the first antenna branch 2 and the second antenna branch 3, thereby effectively increasing the coupling energy between the two. Wherein, when the coupling transition branch 8 also extends between the first antenna branch 2 and the third antenna branch 6, the coupling transition branch 8 may also extend in the entire coupling gap between the first antenna branch 2 and the third antenna branch 6.

[0094] See also Figure 8 , which is a schematic diagram comparing the radiation efficiency of the electronic device 100 in some embodiments of the present application and a reference electronic device when operating in the first frequency band.

[0095] in, Figure 8The radiation efficiency curve L1 obtained by simulation test of the electronic device 100 in any of the above embodiments when the electronic device 100 works in the first frequency band is shown. Figure 3 The radiation efficiency curve L1 obtained by simulation test of the electronic device 100 shown in the figure also illustrates a radiation efficiency curve L2 of a reference electronic device operating in the first frequency band.

[0096] Specifically, the radiation efficiency curve L1 may be a radiation efficiency curve obtained by simulation test using a structure in which the first antenna branch 2 located inside the electronic device 100 is connected to the first feed source 4, and operates in the first frequency band under the excitation of the first feed source 4, and the second antenna branch 3 located in the frame 1 is coupled to operate in the first frequency band as an example. The reference electronic device includes a built-in antenna branch located in the reference electronic device, and the built-in antenna branch may be the same as the first antenna branch 2 of the present application, and operates in the first frequency band under the excitation of the corresponding feed source, but the antenna branch at the frame of the reference electronic device cannot be coupled to operate in the first frequency band.

[0097] in, Figure 8 In the figure, the first frequency band is taken as the WiFi 2.4G frequency band as an example.

[0098] Among them, in a certain frequency band, the frequency corresponding to the highest point of the same radiation efficiency curve is the resonant frequency point. Figure 8 The radiation efficiency of the reference electronic device in the WiFi 2.4G frequency band is approximately -10.2dB, while the radiation efficiency of the electronic device 100 of the present application in the WiFi 2.4G frequency band is approximately -7.7dB, which is improved by approximately 2.5dB.

[0099] It can be seen that in the present application, by coupling excitation, the second antenna branch 3 also works in the first frequency band, which can effectively improve the radiation efficiency of the first antenna branch 2 arranged inside the electronic device 100 and effectively improve the antenna performance.

[0100] See also Fig. 9 , are antenna radiation patterns of the electronic device 100 in some embodiments of the present application and a reference electronic device when operating in the third frequency band.

[0101] in, Fig. 9 Schematically illustrates the antenna pattern (a) of the electronic device 100 of the present application when operating in the third frequency band and the antenna pattern (b) of a reference electronic device when operating in the third frequency band.

[0102] The antenna pattern (a) may be: Figure 3The antenna pattern obtained by simulation test using the electronic device 100 as an example. That is, as mentioned above, the electronic device 100 also includes a third antenna branch 6 and a third feed source 7, the third antenna branch 6 is arranged on the frame 1 and is spaced and coupled with the first antenna branch 2, the third antenna branch 6 operates in the third frequency band under the excitation of the third feed source 7, and couples and excites the first antenna branch 2 to operate in the third frequency band, at this time, the antenna pattern of the electronic device 100 operating in the third frequency band will be more towards Fig. 9 Y direction shown in .

[0103] in, Fig. 9 The Y direction is the direction toward the top D1 of the electronic device 100 .

[0104] The reference electronic device may include an antenna branch located at the frame and a feed source connected to the antenna branch. The antenna branch may be the same as the third antenna branch 6 of the present application. The feed source may be the same as the third feed source of the present application. The antenna branch of the reference electronic device may operate in the third frequency band under the excitation of the corresponding feed source. However, the antenna branch cannot couple and excite the antenna branch located inside the reference electronic device 100 to also operate in the third frequency band. Fig. 9 It can be seen from the antenna pattern (b) in FIG. 1 that the reference electronic device has a pattern when operating in the third frequency band that is obviously oriented toward Fig. 9 The X direction shown in .

[0105] in, Fig. 9 The X direction is the direction toward the side end D3 of the electronic device 100, that is, the direction perpendicular to the antenna branch.

[0106] Therefore, referring to the third frequency band of the electronic device, the radiation energy is mostly directed outwards toward the side end D3 of the electronic device 100, and when the user is holding it, it is easily blocked by the user's hand, thus affecting the antenna performance. Fig. 9 In the Y direction shown in the figure, when held by the user's hand, it can radiate from the holding gap toward the top end D1, so the impact on the antenna performance in the holding state is small.

[0107] Therefore, the electronic device 100 in the present application can also effectively improve the radiation efficiency in the gripping state through the above structure.

[0108] Among them, improving antenna performance or radiation efficiency in the present application also includes improving antenna performance or radiation efficiency by changing the form of the antenna radiation pattern.

[0109] In some embodiments, at least the second antenna branch 3 is a metal segment disposed at the frame 1. When the electronic device 100 further includes the third antenna branch 6, the third antenna branch 6 is also a metal segment disposed at the frame 1.

[0110] In some embodiments, the frame 1 of the electronic device 100 is a metal frame, and the second antenna branch 3 and the third antenna branch 6 may be metal frame segments formed by opening the gap X1 in the metal frame of the electronic device 100 .

[0111] In some other embodiments, the frame 1 of the electronic device 100 is a non-metal frame, the second antenna branch 3 and the third antenna branch 6 are metal segments arranged in the frame of the electronic device 100, and the second antenna branch 3 and the third antenna branch 6 are arranged at intervals.

[0112] That is, in other embodiments, the frame 1 of the electronic device 100 may also be a non-metal frame with low conductivity such as plastic, ceramic, etc. The second antenna branch 3 and the third antenna branch 6 are metal segments arranged in the frame 1 of the electronic device 100 .

[0113] The second antenna branch 3 and the third antenna branch 6 and other branches may be metal segments embedded in the frame of the electronic device 100 , or metal segments arranged on the inner side of the frame of the electronic device 100 .

[0114] In some embodiments, the second antenna branch 3 and the third antenna branch 6 and other branches are in the shape of long strips, and the surface with the largest area of ​​the second antenna branch 3 and the third antenna branch 6 is a surface parallel to the frame surface of the frame 1, wherein the frame surface of the frame 1 is approximately perpendicular to the plane of the display screen of the electronic device 100.

[0115] Among them, in some implementations, when the second end 3b of the second antenna branch 3 is a grounding end and is grounded, the second end 3b of the second antenna branch 3 can also be connected to an adjacent branch, and the second end 3b of the second antenna branch 3 is grounded and isolated from the adjacent branch. Similarly, when the sixth end 6b of the third antenna branch 6 is a grounding end and is grounded, the sixth end 6b of the third antenna branch 6 can also be connected to an adjacent branch, and the sixth end 6b of the third antenna branch 6 is grounded and isolated from the adjacent branch. In some embodiments, even if the second end 3b of the second antenna branch 3 and the sixth end 6b of the third antenna branch 6 are grounding ends, they can be spaced from the adjacent branches by the gap X1 to increase isolation.

[0116] like Figure 1-Figure 5As shown in the figures, the electronic device 100 also includes a mainboard 201, wherein the first feed source 4 and other feed sources can be specifically arranged on the mainboard 201. The drawings of the present application are only schematic diagrams, and in some drawings, at least some feed sources are not located on the mainboard 201 due to layout problems. The aforementioned grounding can be electrically connected to the ground on the mainboard 201 to achieve grounding.

[0117] Among them, Figure 1-Figure 5 As shown in the figures, the electronic device 100 also includes a middle frame 202, which is used to support structures such as a display screen, and the middle frame 202 is used as a ground for the entire device. The ground on the mainboard 201 is connected to the middle frame 202 to provide a ground potential.

[0118] The aforementioned grounding may also be achieved by directly connecting to the middle frame 202 .

[0119] Please also read Fig.10 , which is a partial schematic diagram of an electronic device 100 in some embodiments of the present application.

[0120] In some instances, such as Fig.10 As shown in the figure, the electronic device 100 further includes an antenna bracket 9, and the first antenna branch 2 is fixed inside the electronic device 100 through the antenna bracket 9. Fig.10 As shown, the antenna bracket 9 is as follows Fig.10 The object shown in the blue area, the first antenna branch 2 may be Fig.10 The objects are shown in the white area.

[0121] In some embodiments, the antenna bracket is made of insulating material, and the first antenna branch 2 can be fixed on the antenna bracket 9 and fixed to the corresponding position of the electronic device 100 close to the frame 1 through the antenna bracket 9, and is at least adjacent to and spaced from the second antenna branch 3 arranged on the frame 1.

[0122] In some embodiments, the first antenna branch 2 etc. may be an FPC (flexible printed circuit) fixedly arranged on the antenna bracket 9 or an LDS (Laser-Direct-structuring) metal segment formed on the antenna bracket 9 by laser technology, or a PDS metal segment formed on the antenna bracket 9 by PDS (Printing Direct Structure) technology (for example, a metal segment is formed by printing conductive ink, conductive silver paste, etc. on the antenna bracket), and is fixed to a corresponding position in the electronic device 100 by the antenna bracket, for example, a corresponding position close to the frame 1.

[0123] The electronic device 100 may be any device including an antenna, such as a mobile phone, a tablet computer, a smart watch, a laptop computer, etc. The electronic device 100 may be a tablet electronic device or a foldable electronic device. The electronic device 100 may also include other structures, such as a processor, a memory, a speaker, a USB interface, etc., which are irrelevant to the improvement of the present application and are not described in detail here.

[0124] Thus, in the present application, the first antenna branch 2 is arranged inside the electronic device 100, the second antenna branch 3 is arranged in the frame 1, and the first feed source 4 is connected to the first antenna branch 2 and one of the second antenna branch 3. One of the first antenna branch 2 and the second antenna branch 3 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the other of the first antenna branch 2 and the second antenna branch 3 to operate in the first frequency band. Thus, when the first antenna branch 2 operates in the first frequency band, the second antenna branch 3 can be used as a coupled resonant branch of the first antenna branch 2 and also resonate in the first frequency band, thereby improving the radiation performance of the first antenna branch 2 arranged inside the electronic device 100. Alternatively, when the second antenna branch 3 operates in the first frequency band, the first antenna branch 2 can be used as a coupled resonant branch of the second antenna branch 3 and also resonate in the first frequency band, thereby improving the radiation performance of the second antenna branch 3 arranged in the frame 1. Therefore, even if the electronic device 100 is in a holding state and the second antenna branch 3 is held, it can be ensured that the radiation performance meets the requirements.

[0125] The electronic device 100 of the present application further includes other antenna branches arranged on the frame 1 and inside the electronic device 100.

[0126] See also Fig.11 , is a structural block diagram of an electronic device 100 in some embodiments of the present application. In some embodiments, the electronic device 100 includes an antenna assembly 200.

[0127] In some embodiments, the antenna assembly 200 may include the aforementioned first antenna branch 2, second antenna branch 3 and first feed 4. The second antenna branch 3 is spaced apart and coupled with the first antenna branch 2. The first feed 4 is connected to one of the first antenna branch 2 and the second antenna branch 3, and one of the first antenna branch 2 and the second antenna branch 3 operates in the first frequency band under the excitation of the first feed 4, and couples and excites the other of the first antenna branch 2 and the second antenna branch 3 to operate in the first frequency band.

[0128] Thus, through the coupling between the first antenna branch 2 and the second antenna branch 3, a dual resonance effect can be achieved by serving as a coupled resonant branch of another antenna branch, which can effectively improve the radiation efficiency / radiation performance / antenna performance in the first frequency band.

[0129] In some embodiments, a projection of the first antenna branch 2 on one side of the second antenna branch 3 at least partially overlaps with the second antenna branch 3 .

[0130] In some embodiments, the antenna assembly 200 also includes a second feed source 5, which is connected to the first antenna branch 2 and the other of the second antenna branch 3, and the other of the first antenna branch 2 and the second antenna branch 3 also operates in the second frequency band under the excitation of the second feed source 5.

[0131] In some embodiments, the first antenna branch 2 includes a first feeding point F1, the first feed source 4 is connected to the first feeding point F1 of the first antenna branch 2, the first antenna branch 2 operates in a first frequency band under the excitation of the first feed source 4, and couples to excite the second antenna branch 3 to operate in the first frequency band, the second antenna branch 3 includes a first end 3a and a second end 3b relative to each other, at least the first end 3a is an open end, at least a portion of the first antenna branch 2 is adjacent to and coupled with a first target branch portion Z1 of the second antenna branch 3 including the first end 3a, so as to excite the first target branch portion Z of the second antenna branch 3 to operate in the first frequency band.

[0132] In some embodiments, the second end 3b of the second antenna branch 3 is grounded, the second antenna branch 3 includes a second feeding point F2, the second feeding point F2 is used to connect to the second feed source 5, the second feeding point F2 is located between the first end 3a and the second end 3b, the first target branch portion Z1 is the target branch portion between the second feeding point F2 and the first end 3a of the second antenna branch 3, and the second antenna branch 3 operates in the second frequency band under the excitation of the second feed source 5.

[0133] In some embodiments, the first antenna branch 2 includes a third end 2a and a fourth end 2b relative to each other, at least the third end 2a is an open end, at least the second target branch portion Z2 in the first antenna branch 2 is adjacent to and coupled with the first target branch portion Z1, and the second target branch portion Z2 also operates in the second frequency band under the coupling excitation of the first target branch portion Z1, wherein the second target branch portion Z2 is the portion including the third end 2a.

[0134] In some embodiments, the antenna assembly 200 also includes a third antenna branch 6 and a third feed source 7. The third antenna branch 6 is spaced apart and coupled with the first antenna branch. The third antenna branch 6 operates in a third frequency band under the excitation of the third feed source 7, and couples and excites the first antenna branch 2 to operate in the third frequency band.

[0135] In some embodiments, the antenna assembly 200 further includes a coupling transition branch 8, wherein the coupling transition branch 8 is located at least between the first antenna branch 2 and the second antenna branch 3, and is used to at least improve the coupling degree between the first antenna branch 2 and the second antenna branch 3.

[0136] The antenna assembly 200 may further include the aforementioned structures related to the corresponding branches and feed sources. The more specific structure of the antenna assembly 200 may refer to the relevant contents of the aforementioned electronic device 100 and will not be described in detail here.

[0137] in, Fig.11 In the structural block diagram, it is only for illustrating that the electronic device 100 includes the antenna assembly 200. Obviously, the electronic device 100 is the electronic device 100 in any of the aforementioned embodiments, and may also include other required structures.

[0138] The electronic device 100 and antenna assembly 200 of the present application, the first antenna branch 2 is arranged inside the electronic device 100, the second antenna branch 3 is arranged on the frame 1, and the first feed source 4 is connected to the first antenna branch 2 and one of the second antenna branch 3, and one of the first antenna branch 2 and the second antenna branch 3 operates in the first frequency band under the excitation of the first feed source 4, and couples to excite the other of the first antenna branch 2 and the second antenna branch 3 to operate in the first frequency band. Thus, when the first antenna branch 2 operates in the first frequency band, the second antenna branch 3 can be used as a coupled resonant branch of the first antenna branch 2 and also resonate in the first frequency band, thereby improving the radiation performance of the first antenna branch 2 arranged inside the electronic device 100. Alternatively, when the second antenna branch 3 operates in the first frequency band, the first antenna branch 2 can be used as a coupled resonant branch of the second antenna branch 3 and also resonate in the first frequency band, thereby improving the radiation performance of the second antenna branch 3 arranged in the frame 1. Therefore, even if the electronic device 100 is in a holding state and the second antenna branch 3 is held, it can be ensured that the radiation performance meets the requirements.

[0139] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0140] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: frame; A first antenna branch is arranged inside the electronic device; A second antenna branch, arranged on the frame, wherein the second antenna branch is spaced apart and coupled with the first antenna branch; A first feed source is connected to one of the first antenna branch and the second antenna branch. One of the first antenna branch and the second antenna branch operates in a first frequency band under the excitation of the first feed source, and coupling excites the other of the first antenna branch and the second antenna branch to operate in the first frequency band.

2. The electronic device according to claim 1, characterized in that: The projection of the first antenna branch on the frame at least partially overlaps with the second antenna branch.

3. The electronic device according to claim 1, characterized in that: The electronic device also includes a second feed source, which is connected to the first antenna branch and the other one of the second antenna branches. The first antenna branch and the other one of the second antenna branch also operate in the second frequency band under the excitation of the second feed source.

4. The electronic device according to claim 1, characterized in that: The first antenna branch includes a first feeding point, the first feed source is connected to the first feeding point of the first antenna branch, the first antenna branch operates in a first frequency band under the excitation of the first feed source, and couples to excite the second antenna branch to operate in the first frequency band, the second antenna branch includes a first end and a second end relative to each other, at least the first end is an open end, at least a portion of the first antenna branch is adjacent to and coupled to a first target branch portion of the second antenna branch including the first end, so as to excite the first target branch portion of the second antenna branch to operate in the first frequency band.

5. The electronic device according to claim 4, characterized in that: The electrical length of the first antenna branch and the electrical length of the first target branch both satisfy resonance in the first frequency band.

6. The electronic device according to claim 4, characterized in that: The second end of the second antenna branch is grounded, the second antenna branch includes a second feeding point, the second feeding point is used to connect to a second feed source, the second feeding point is located between the first end and the second end, and the first target branch part is the branch part between the second feeding point and the first end of the second antenna branch.

7. The electronic device according to claim 6, characterized in that: The second antenna branch operates in a second frequency band under the excitation of the second feed source.

8. The electronic device according to claim 7, characterized in that: The first antenna branch includes a third end and a fourth end relative to each other, at least the third end is an open end, at least the second target branch portion in the first antenna branch is adjacent to and coupled with the first target branch portion, and the second target branch portion also operates in the second frequency band under the coupling excitation of the first target branch portion, wherein the second target branch portion is the portion including the third end.

9. The electronic device according to claim 1, characterized in that: The electronic device also includes a third antenna branch and a third feed source. The third antenna branch is arranged on the frame and is spaced apart and coupled with the first antenna branch. The third antenna branch operates in a third frequency band under the excitation of the third feed source and couples to excite the first antenna branch to operate in the third frequency band.

10. The electronic device according to any one of claims 1 to 9, characterized in that: The electronic device further includes a coupling transition branch, which is located at least between the first antenna branch and the second antenna branch and is used to at least improve the coupling degree between the first antenna branch and the second antenna branch.

11. The electronic device according to any one of claims 1 to 9, characterized in that: The second antenna branch is a metal segment arranged at the frame.

12. The electronic device according to claim 11, characterized in that: The frame is a metal frame, and the second antenna branch is a metal frame segment formed by opening a gap in the frame.

13. The electronic device according to claim 11, characterized in that: The frame of the electronic device is made of non-metallic material, and the second antenna branch is a metal segment arranged in the frame of the electronic device.

14. The electronic device according to any one of claims 1 to 9, characterized in that: The electronic device further comprises an antenna bracket, and the first antenna branch is fixed inside the electronic device through the antenna bracket.

15. The electronic device according to claim 14, characterized in that: The first antenna branch is an FPC antenna fixedly arranged on the antenna bracket or an LDS metal segment formed on the antenna bracket by laser technology, or a PDS metal segment formed on the antenna bracket by PDS technology.

16. An antenna assembly, characterized in that: include: First antenna branch; a second antenna branch, the second antenna branch being spaced apart and coupled to the first antenna branch; A first feed source is connected to one of the first antenna branch and the second antenna branch. One of the first antenna branch and the second antenna branch operates in a first frequency band under the excitation of the first feed source, and coupling excites the other of the first antenna branch and the second antenna branch to operate in the first frequency band.

17. The antenna assembly according to claim 16, characterized in that: A projection of the first antenna branch on one side of the second antenna branch at least partially overlaps with the second antenna branch.

18. The antenna assembly according to claim 16, wherein: The antenna assembly also includes a second feed source, which is connected to the first antenna branch and the other one of the second antenna branches. The first antenna branch and the other one of the second antenna branch also operate in the second frequency band under the excitation of the second feed source.

19. The antenna assembly according to claim 18, characterized in that The first antenna branch includes a first feeding point, the first feed source is connected to the first feeding point of the first antenna branch, the first antenna branch operates in a first frequency band under the excitation of the first feed source, and couples to excite the second antenna branch to operate in the first frequency band, the second antenna branch includes a first end and a second end relative to each other, at least the first end is an open end, at least a portion of the first antenna branch is adjacent to and coupled to a first target branch portion of the second antenna branch including the first end, so as to excite the first target branch portion of the second antenna branch to operate in the first frequency band.

20. The antenna assembly according to claim 19, wherein: The second end of the second antenna branch is grounded, the second antenna branch includes a second feeding point, the second feeding point is used to connect to a second feed source, the second feeding point is located between the first end and the second end, the first target branch part is the branch part between the second feeding point and the first end of the second antenna branch, and the second antenna branch operates in a second frequency band under the excitation of the second feed source.

21. The antenna assembly according to claim 20, characterized in that The first antenna branch includes a third end and a fourth end relative to each other, at least the third end is an open end, at least the second target branch portion in the first antenna branch is adjacent to and coupled with the first target branch portion, and the second target branch portion also operates in the second frequency band under the coupling excitation of the first target branch portion, wherein the second target branch portion is the portion including the third end.

22. The antenna assembly according to claim 16, wherein: The antenna assembly also includes a third antenna branch and a third feed source. The third antenna branch is spaced apart and coupled with the first antenna branch. The third antenna branch operates in a third frequency band under the excitation of the third feed source and couples to excite the first antenna branch to operate in the third frequency band.

23. The antenna assembly according to any one of claims 16 to 22, characterized in that: The antenna assembly further includes a coupling transition branch, which is located at least between the first antenna branch and the second antenna branch and is used to at least improve the coupling degree between the first antenna branch and the second antenna branch.

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