Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly. The antenna assembly comprises a first radiation unit, a second radiation unit and a feed source. The first radiation unit comprises a first radiation branch knot, the first radiation branch knot comprises a first end, a second end and a feeding point, and the first end is an open circuit end. The second radiation unit comprises a second radiation branch knot, the second radiation branch knot comprises a third end and a fourth end, the third end is connected with the second end of the first radiation branch knot, and the fourth end is an open circuit end. The feed source is connected with the feed point of the first radiation branch knot and is used for feeding in a first feed signal through the feed point. Wherein the electrical length of the first radiation unit and the electrical length of the second radiation unit are both lambda 1 / 4, and lambda 1 is the wavelength corresponding to the first frequency band supported by the antenna assembly under excitation of the first feed signal. The invention further provides electronic equipment. According to the invention, the antenna pattern can be in an expected direction, and the overall radiation performance of the antenna is effectively improved.

Description

Technical Field

[0001] The present application 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 antennas, the number of antennas included in electronic devices is increasing. However, due to the gradual popularization of full-screen and curved screens, the clearance space left for antennas is getting smaller and smaller. The current antenna structure generally includes a grounding point. For example, the PIFA antenna structure includes a grounding point for grounding and a feeding point for feeding, so as to support the transmission and reception of electromagnetic wave signals such as intermediate frequency through a smaller size. For some antennas, for example, for GPS antennas, the metal ground participates in a larger radiation, and the metal ground often affects the antenna pattern, causing the antenna pattern to deviate from the desired direction, thereby affecting the overall radiation performance of the antenna. 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 antenna assembly is provided, the antenna assembly comprising a first radiation unit, a second radiation unit and a feed source. The first radiation unit comprises a first radiation branch, the first radiation branch comprises a first end, a second end and a feed point, and the first end is an open end. The second radiation unit comprises a second radiation branch, the second radiation branch comprises a third end and a fourth end, the third end is connected to the second end of the first radiation branch, and the fourth end is an open end. The feed source is connected to the feed point of the first radiation branch, and is used to feed a first feed signal through the feed point. The electrical lengths of the first radiation unit and the second radiation unit are both λ1 / 4, wherein λ1 is the wavelength corresponding to the first frequency band supported by the antenna assembly under the excitation of the first feed signal.

[0005] In the second aspect, an electronic device is also provided, the electronic device comprising an antenna assembly. The antenna assembly comprises a first radiation unit, a second radiation unit and a feed source. The first radiation unit comprises a first radiation branch, the first radiation branch comprises a first end, a second end and a feeding point, and the first end is an open end. The second radiation unit comprises a second radiation branch, the second radiation branch comprises a third end and a fourth end, the third end is connected to the second end of the first radiation branch, and the fourth end is an open end. The feed source is connected to the feeding point of the first radiation branch, and is used to feed a first feed signal through the feeding point. The electrical lengths of the first radiation unit and the second radiation unit are both λ1 / 4, wherein λ1 is the wavelength corresponding to the first frequency band supported by the antenna assembly under the excitation of the first feed signal.

[0006] The antenna assembly and electronic device of the present application are designed with two radiating units each having an electrical length of λ1 / 4, so that a balanced mode can be effectively excited through the two radiating units each having an electrical length of λ1 / 4, thereby not and need not participate in radiation through a metal ground. Thus, the problem of the antenna radiation pattern being significantly deviated from the desired direction when radiation is participated in through a metal ground in the prior art is avoided, and the overall radiation performance of the antenna can be effectively improved. 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 This is a schematic structural diagram of an antenna assembly in some embodiments of the present application in an example.

[0009] Figure 2 Schematic diagram of current distribution of an equivalent balanced mode of an antenna assembly in some embodiments of the present application.

[0010] Figure 3 This is another structural schematic diagram of an antenna assembly in some embodiments of the present application in an example.

[0011] Figure 4 This is another structural schematic diagram of the antenna assembly in some embodiments of the present application in an example.

[0012] Figure 5 It is a schematic diagram of the structure of the antenna assembly in some embodiments of the present application in another example.

[0013] Figure 6 It is a schematic structural diagram of the antenna assembly in some embodiments of the present application in yet another example.

[0014] Figure 7 This is a schematic structural diagram of the antenna assembly in some embodiments of the present application in yet another example.

[0015] Figure 8 This is a structural block diagram of an electronic device in some embodiments of the present application.

[0016] Fig. 9 It is a schematic plan view of an electronic device in some embodiments of the present application.

[0017] Fig.10 A schematic diagram of the return loss and total system efficiency of an antenna assembly of an electronic device in some embodiments of the present application.

[0018] Fig.11The three-dimensional radiation diagram, antenna radiation cross-sectional diagram and upper hemisphere ratio diagram of the antenna assembly of the electronic device in some embodiments of the present application are shown.

[0019] Fig.12 Another schematic plan view of an electronic device in some embodiments of the present application.

[0020] Fig.13 Another schematic diagram of return loss and total system efficiency of an antenna assembly of an electronic device in some embodiments of the present application.

[0021] Fig.14 The three-dimensional radiation pattern and antenna radiation cross-sectional diagram of the antenna assembly of the electronic device in some embodiments of the present application at 1.57 GHz.

[0022] Fig.15 The three-dimensional radiation pattern and antenna radiation cross-sectional diagram of the antenna assembly of the electronic device in some embodiments of the present application at 1.575 GHz.

[0023] Fig.16 Schematic diagram of the upper hemisphere occupancy of the antenna assembly of the electronic device in some embodiments of the present application at 1.58 GHz.

[0024] Fig.17 Another upper hemisphere ratio diagram of the antenna assembly of the electronic device in some embodiments of the present application.

[0025] Fig.18 It is another schematic plan view of an electronic device in some embodiments of the present application.

[0026] Fig.19 It is another schematic diagram of return loss and total system efficiency of the antenna assembly of the electronic device in some embodiments of the present application.

[0027] Fig. 20 It is another three-dimensional radiation diagram, antenna radiation cross-sectional diagram and upper hemisphere ratio diagram of the antenna assembly of the electronic device in some embodiments of the present application.

[0028] Fig.21 It is another schematic plan view of the electronic device in some embodiments of the present application.

[0029] Fig. 22 It is another schematic diagram of return loss and total system efficiency of the antenna assembly of the electronic device in some embodiments of the present application.

[0030] Fig.23 It is another three-dimensional radiation diagram, antenna radiation cross-sectional diagram and upper hemisphere ratio diagram of the antenna assembly of the electronic device in some embodiments of the present application.

[0031] Fig.24Schematic diagram of other return losses and total system efficiency of the antenna assembly of the electronic device in some embodiments of the present application.

[0032] Fig.25 Other three-dimensional directional diagrams, antenna directional cross-sectional diagrams and upper hemisphere ratio diagrams of the antenna assembly of the electronic device in some embodiments of the present application.

[0033] Fig.26 Schematic diagram of another return loss and system total efficiency of an antenna assembly of an electronic device in some embodiments of the present application.

[0034] Fig. 27 Another three-dimensional directional diagram, antenna directional cross-sectional diagram and upper hemisphere ratio diagram of the antenna assembly of the electronic device in some embodiments of the present application. DETAILED DESCRIPTION

[0035] 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.

[0036] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "thickness", "width", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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 on the present invention. The term "connection" in this application includes the meanings of physical structural connection, electrical connection, direct connection or indirect connection, and can be determined specifically according to the required connection situation. In the description of the embodiments of the present invention, the terms "first", "second", etc. are not specific, but are used to distinguish objects with the same name. If there is a description in the specification, the objects with the same name referred to by the terms "first", "second", etc. may be the same objects.

[0037] See also Figure 1 , is a schematic diagram of the structure of the antenna assembly 1 in some embodiments of the present application in an example. Figure 1As shown, the antenna component 1 includes a first radiation unit 11, a second radiation unit 12, and a feed source 13. The first radiation unit 11 includes a first radiation branch 111, the first radiation branch 111 includes a first end D1, a second end D2 and a feed point F1, and the first end D1 is an open end. The second radiation unit 12 includes a second radiation branch 121, the second radiation branch 121 includes a third end D3 and a fourth end D4, the third end D3 is connected to the second end D2 of the first radiation branch 111, and the fourth end D4 is an open end. The feed source 13 is connected to the feed point F1 of the first radiation branch 111, and is used to feed a first feed signal through the feed point F1. The electrical lengths of the first radiation unit 11 and the second radiation unit 12 are both λ1 / 4, and λ1 is the wavelength corresponding to the first frequency band supported by the antenna component 1 under the excitation of the first feed signal.

[0038] Therefore, the antenna component 1 in the present application is designed with two radiating units whose electrical length is λ1 / 4, so that the balanced mode can be effectively excited through the two radiating units whose electrical length is λ1 / 4, and there is no need to radiate through the metal ground. Therefore, the problem in the prior art that the antenna radiation pattern deviates significantly from the desired direction when the metal ground is used to participate in radiation is avoided, and the overall radiation performance of the antenna can be effectively improved.

[0039] In some embodiments, the electrical lengths of the first radiation unit 11 and the second radiation unit 12 are both λ1 / 4, so that the overall electrical length of the first radiation unit 11 and the second radiation unit 12 is λ1 / 2. In some embodiments, the connection position of the first radiation branch 111 and the second radiation branch 121 is the middle position of the overall electrical length. In some embodiments, the first radiation branch 111 and the second radiation branch 121 may be an integrally formed structure, and the first radiation branch 111 and the second radiation branch 121 are two radiation branches divided by the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12. In some embodiments, the first radiation unit 11 and the second radiation unit 12 may respectively include only the first radiation unit 11 and the second radiation unit 12, or the first radiation unit 11 or the second radiation unit 12 may also include a matching unit. Therefore, the electrical length of the first radiation unit 11 or the second radiation unit 12 can be the electrical length of the first radiation branch 111 and the second radiation branch 121, or further add the electrical length equivalent to the matching unit, and more specific content will be explained later. However, no matter which case, the connection position of the first radiation branch 111 and the second radiation branch 121 is the middle position of the overall electrical length, and the first radiation branch 111 and the second radiation branch 121 can be two radiation branches connected at the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12. In this way, the electrical length of the first radiation branch 111 can be λ1 / 4 or the sum of the electrical lengths equivalent to the first radiation branch 111 and the corresponding matching unit is λ1 / 4, and the electrical length of the second radiation branch 121 can be λ1 / 4 or the sum of the electrical lengths equivalent to the second radiation branch 121 and the corresponding matching unit is λ1 / 4.

[0040] See also Figure 2 , is a schematic diagram of current distribution of an equivalent balanced mode of the antenna assembly 1 in some embodiments of the present application. Figure 2 As shown, after the feed source 13 feeds the first feed signal through the feed point F1, it will stimulate the current I1 from the first end D1 of the first radiation branch 111 to the fourth end D4 of the second radiation branch 121. Figure 2 In FIG. 1 , the first radiation branch 111 and the second radiation branch 121 are separated by dotted lines.

[0041] Among them, the current I1 has a maximum current value at the connection position P0 between the first radiation branch 111 and the second radiation branch 121, that is, the second end D2 of the first radiation branch 111 or the third end D3 of the second radiation branch 121, and has a minimum current value at the first end D1 of the first radiation branch 111 and the fourth end D4 of the second radiation branch 121, which is approximately zero, thereby effectively exciting a balanced mode.

[0042] Among them, by exciting the balanced mode, the current can flow through the connection position of the first radiation branch 111 and the second radiation branch 121 without flowing to the metal ground, but basically all flows into the second radiation branch 121, thereby avoiding the problem that the excitation current flows into the metal ground and causes the antenna radiation pattern to deviate significantly from the desired direction when participating in radiation through the metal ground, and can effectively improve the overall radiation performance of the antenna.

[0043] Among them, in some embodiments, the first radiating branch 111 connected to the feed source 13 plays a major radiating role, so the side where the first radiating branch 111 is located can be the side where the desired antenna pattern is directed. That is, through the antenna assembly 1 of the present application, when the desired antenna pattern is a certain target direction, the first radiating branch 111 and the second radiating branch 121 can be roughly arranged in sequence along the target direction. Thereby, it can be effectively ensured that the antenna pattern is in the desired direction.

[0044] In some embodiments, the antenna assembly 1 supports the first frequency band under the excitation of the first feed signal, which means that under the excitation of the first feed signal, the first radiation branch 111 and the second radiation branch 121 cooperate to support the first frequency band, and only the first radiation branch 111 connected to the feed source 13 plays the main radiation role. For example, the first radiation branch 111 mainly resonates at the center frequency corresponding to the first frequency band to support the transmission and reception of electromagnetic wave signals in the first frequency band.

[0045] In some embodiments, the first radiating branch 111 and the second radiating branch 121 form a bent structure as a whole, for example, an "L"-shaped structure as a whole; and one of the first radiating branch 111 and the second radiating branch 121 is a straight bar, and the other is a bent shape, for example, an "L"-shaped structure, or the first radiating branch 111 and the second radiating branch 121 are both straight bars, and a bent structure is formed by connection.

[0046] For example, Figure 1 As shown, the first radiation branch 111 is bendable, that is, Figure 1The "L" shape shown in FIG. 1 and the second radiation branch 121 are straight strips. Figure 1 As shown, the first radiation branch 111 includes a first sub-radiation branch 111a and a second sub-radiation branch 111b. The first sub-radiation branch 111a and the second sub-radiation branch 111b are straight strips and are substantially vertically connected to form a Figure 1 The "L"-shaped first radiation branch 111 is shown in FIG. The end of the first sub-radiation branch 111a away from the second sub-radiation branch 111b is the first end D1 of the first radiation branch 111, and the end of the second sub-radiation branch 111b away from the first sub-radiation branch 111a is the second end D2 of the first radiation branch 111. The second sub-radiation branch 111b is connected between the first sub-radiation branch 111a and the second radiation branch 121, and the length direction of the second sub-radiation branch 111b is parallel to the length direction of the second radiation branch 121.

[0047] In the present application, the length direction of each radiation branch or sub-radiation branch refers to the extension direction of the long side of the radiation branch or sub-radiation branch.

[0048] In some embodiments, the first radiation branch 111 and the second radiation branch 121 may be an integrally formed structure, and only the first sub-radiation branch 111a and the second sub-radiation branch 111b are bent at the connection position to form the bent structure. In some embodiments, the second end D2 of the first radiation branch 111 in an "L" shape and the third end D3 of the second radiation branch 121 in a straight strip shape may be fixedly connected by welding or the like.

[0049] See also Figure 3 , is another structural schematic diagram of the antenna assembly 1 in some embodiments of the present application in an example. Figure 3 As shown, in some embodiments, the first radiation branch 111 is in a straight strip shape, and the second radiation branch 121 is in a bent shape. Figure 3 The "L" shape shown in FIG. Figure 3 As shown, the second radiation branch 121 includes a third sub-radiation branch 121a and a fourth sub-radiation branch 121b, and the third sub-radiation branch 121a and the fourth sub-radiation branch 121b are straight strips and are substantially vertically connected to form Figure 3The "L"-shaped second radiation branch 121 shown in FIG. The end of the third sub-radiation branch 121a away from the fourth sub-radiation branch 121b is the fourth end D4 of the second radiation branch 121, and the end of the fourth sub-radiation branch 121b away from the third sub-radiation branch 121a is the third end D3 of the second radiation branch 121. That is, Figure 3 As shown, the fourth sub-radiation branch 121 b is connected between the third sub-radiation branch 121 a and the first radiation branch 111 , and the length direction of the fourth sub-radiation branch 121 b is parallel to the length direction of the first radiation branch 111 .

[0050] Similarly, the first radiation branch 111 and the second radiation branch 121 can be an integrally formed structure, and only the connection position of the third sub-radiation branch 121a and the fourth sub-radiation branch 121b is bent to form the bent structure. In some embodiments, the third end D3 of the second radiation branch 121 in an "L" shape can be fixedly connected to the second end D2 of the first radiation branch 111 in a straight strip shape by welding or the like.

[0051] See also Figure 4 , is another structural diagram of the antenna assembly 1 in some embodiments of the present application in an example. Figure 4 As shown, in some embodiments, the first radiation branch 111 and the second radiation branch 121 are both straight strips and are substantially vertically connected to form Figure 4 The "L" shaped structure shown in .

[0052] Similarly, in some embodiments, the first radiating branch 111 and the second radiating branch 121 may be an integrally formed structure, and the bent structure is formed by bending only at the connection position between the first radiating branch 111 and the second radiating branch 121. In some embodiments, the second end D2 of the first radiating branch 111 and the third end D3 of the second radiating branch 121 may be fixedly connected by welding or the like.

[0053] in, Figure 3 and Figure 4 Just to further illustrate that when the first radiating branch 111 and the second radiating branch 121 form a bent structure, one of the first radiating branch 111 and the second radiating branch 121 can be a straight bar and the other can be a bent shape, or both of the first radiating branch 111 and the second radiating branch 121 are straight bars, and the shape structure of the first radiating branch 111 and the second radiating branch 121 is also applicable to any subsequent embodiments.

[0054] In other embodiments, the first radiating branch 111 and the second radiating branch 121 may both be straight strips, and the first radiating branch 111 and the second radiating branch 121 are arranged along the length direction of the first radiating branch 111 and the second radiating branch 121 to form a linear structure as a whole, and the third end D3 of the second radiating branch 121 is connected to the second end D2 of the first radiating branch 111. The length direction of the first radiating branch 111 and the second radiating branch 121 is the extension direction of the longest side of the first radiating branch 111 and the second radiating branch 121.

[0055] Wherein, in some embodiments, Figure 1 As shown in the figure, the first radiation unit 11 only includes the first radiation branch 111, the second radiation unit 12 only includes the second radiation branch 121, and the electrical lengths of the first radiation branch 111 and the second radiation branch 121 are both λ1 / 4.

[0056] That is, in some embodiments, the first radiation unit 11 only includes the first radiation branch 111, the second radiation unit 12 only includes the second radiation branch 121, the electrical length of the first radiation unit 11 is the electrical length of the first radiation branch 111, the electrical length of the second radiation unit 12 is the electrical length of the second radiation branch 121, and both are λ1 / 4, and the total electrical length of the first radiation branch 111 and the second radiation branch 121, that is, the overall electrical length is λ1 / 2.

[0057] In some embodiments, the electrical length of the first radiation branch 111 and the second radiation branch 121 is approximately equal to the length of the first radiation branch 111 and the second radiation branch 121. Therefore, in some embodiments, the length of the first radiation branch 111 and the second radiation branch 121 are approximately equal, and the connection position of the first radiation branch 111 and the second radiation branch 121 may also be the middle position of the overall length of the first radiation branch 111 and the second radiation branch 121, that is, the position equal to the distance from the first end D1 or the fourth end D4.

[0058] See also Figure 5 , is a schematic diagram of the structure of the antenna assembly 1 in some embodiments of the present application in another example. Figure 5As shown, in some embodiments, the antenna assembly 1 further includes a grounding member 14, and the grounding member 14 is connected between a connection position P0 of the first radiation branch 111 and the second radiation branch 121 and the ground. The connection position P0 of the first radiation branch 111 and the second radiation branch 121 is also the position of the second end D2 of the first radiation branch 111 or the third end D3 of the second radiation branch 121, that is, the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12.

[0059] Thus, the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12 is grounded through the grounding piece 14, which can better meet the boundary conditions of the balanced mode, that is, the middle position is the current peak, and the first end D1 of the first radiation branch 111 and the fourth end D4 of the second radiation branch 121 are the current zero points.

[0060] As mentioned above, by exciting the balanced mode, the current can flow through the connection position P0 of the first radiation branch 111 and the second radiation branch 121 without flowing to the metal ground, and basically all flows into the second radiation branch 121, thereby avoiding the problem that the excitation current flows into the metal ground, and the antenna pattern deviates significantly from the desired direction when participating in radiation through the metal ground. Therefore, in some embodiments, when the first radiation unit 11 and the second radiation unit 12 are grounded at the middle position of the overall electrical length through the grounding member 14, the balanced mode can be well excited, and the excited current will not flow to the metal ground.

[0061] The grounding / returning of the grounding piece is added at the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12 only to better meet the boundary condition that the middle position is the maximum current when the antenna working mode is the balanced mode, but it does not mean that the balanced mode of the antenna cannot be excited when there is no return. Obviously, in some embodiments, such as Figure 1 As shown in the figure, when the electrical length of the first radiation unit 11 and the second radiation unit 12 is ensured to be λ1 / 4, the balanced mode of the antenna can actually be excited, and the boundary condition that the middle position is the current peak and the first end D1 of the first radiation branch 111 and the fourth end D4 of the second radiation branch 121 are the current zero point can be roughly satisfied.

[0062] The grounding member 14 may be an electrical connector such as a conductive wire, an FPC (flexible printed circuit), a metal spring, or solder. In some embodiments, the feed source 13 may also be connected to the feed point F1 via a feed line, and the feed line may also be an electrical connector such as a conductive wire, an FPC, a metal spring, or solder.

[0063] See also Figure 6 , is a schematic diagram of the structure of the antenna assembly 1 in some embodiments of the present application in another example. In some embodiments, at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15. When the first radiation unit 11 or the second radiation unit 12 includes the matching unit 15, the matching unit 15 is used to perform impedance matching adjustment on the first radiation branch 111 or the second radiation branch 121. The sum of the equivalent electrical length of the matching unit 15 and the electrical length of the first radiation branch 111 or the second radiation branch 121 is equal to λ1 / 4.

[0064] That is, in some embodiments, at least one of the first radiation unit 11 and the second radiation unit 12 also includes a matching unit 15, and the matching unit 15 can be equivalent to a part of the electrical length when performing impedance matching adjustment, so that the electrical length of at least one of the first radiation branch 111 and the second radiation branch 121 can be less than λ1 / 4, which can effectively reduce the size of at least one of the first radiation branch 111 and the second radiation branch 121, and can reduce the overall volume.

[0065] In some embodiments, when the first radiation unit 11 includes the matching unit 15, the matching unit 15 is connected between the feed point F1 and the feed source 13. When the second radiation unit 12 includes the matching unit 15, the matching unit 15 is connected between a preset position P1 of the second radiation branch 121 and the ground, and the preset position P1 is a position between the third end D3 and the fourth end D4 of the second radiation branch 121. In some embodiments, the preset position P1 is a position on the second radiation branch 121 other than the third end D3 and the fourth end D4. Preferably, the position of the feed point F1 may be close to the first end D1 of the first radiation branch 111, and the preset position P1 may be close to the fourth end of the second radiation branch 121.

[0066] in, Figure 6 FIG. 1 schematically shows a structure in which both the first radiation unit 11 and the second radiation unit 12 include a matching unit 15. Figure 6 As shown, one matching unit 15 is connected between the feeding point F1 and the feed source 13, and the other matching unit 15 is connected between the preset position P1 of the second radiation branch 121 and the ground.

[0067] In some embodiments, the matching unit 15 may include elements such as an inductor and / or a capacitor, wherein when the first radiation unit 11 includes the matching unit 15, the matching unit 15 may be equivalent to a partial electrical length, and the sum of the electrical length equivalent to the matching unit and the current electrical length of the first radiation branch 111 satisfies to be equal to λ1 / 4. Similarly, when the second radiation unit 12 includes the matching unit 15, the matching unit 15 may be equivalent to a partial electrical length, and the sum of the electrical length equivalent to the matching unit and the current electrical length of the second radiation branch 121 satisfies to be equal to λ1 / 4.

[0068] See also Figure 7 , is a schematic diagram of the structure of the antenna assembly 1 in some embodiments of the present application in another example. In some embodiments, at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15, and the antenna assembly further includes a grounding member 14, and the grounding member 14 is connected between the connection position P0 of the first radiation branch 111 and the second radiation branch 121 and the ground.

[0069] That is, in some embodiments, when at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15 , the antenna assembly further includes a grounding member 14 .

[0070] Thus, as mentioned above, the electrical length of at least one of the first radiation branch 111 and the second radiation branch 121 can be less than λ1 / 4, which can effectively reduce the size of at least one of the first radiation branch 111 and the second radiation branch 121, and can reduce the overall volume. In addition, as mentioned above, the connection position P0 of the first radiation branch 111 and the second radiation branch 121 is the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12, so that the middle position of the overall electrical length of the first radiation unit 11 and the second radiation unit 12 is grounded through the grounding member 14, which can better meet the boundary conditions of the balanced mode, that is, the middle position is the current peak, and the first end D1 of the first radiation branch 111 and the fourth end D4 of the second radiation branch 121 are the current zero points.

[0071] In some embodiments, the feed source 13 is further used to feed a second feed signal through the feed point F1, and the electrical length between the feed point F1 and the first end D1 of the first radiation branch 111 is λ2 / 4, where λ2 is the wavelength corresponding to the second frequency band supported by the antenna assembly 1 under the excitation of the second feed signal. That is, in some embodiments, the feed source 13 can output the first feed signal and the second feed signal at the same time, and simultaneously excite electromagnetic wave signals of two frequency bands.

[0072] That is, in some embodiments, the electrical length between the feeding point F1 and the first end D1 of the first radiating branch 111 can be designed to be λ2 / 4, so that the antenna assembly 1 can further support the second frequency band under the excitation of the second feeding signal. Thus, the antenna assembly 1 can achieve coverage of multiple frequency bands.

[0073] In some embodiments, the antenna assembly 1 further supports the second frequency band under the excitation of the second feed signal, specifically, the first radiating branch 111 supports the second frequency band under the excitation of the second feed signal, and more specifically, the portion between the feed point F1 and the first end D1 of the first radiating branch 111 supports the second frequency band under the excitation of the second feed signal. For example, the portion between the feed point F1 and the first end D1 of the first radiating branch 111 resonates at the center frequency corresponding to the second frequency band, and supports the transmission and reception of electromagnetic wave signals in the second frequency band.

[0074] In some embodiments, the first frequency band is a GPS frequency band, and the second frequency band is an N78 frequency band or a WiFi 5G frequency band.

[0075] That is, in some embodiments, the antenna assembly 1 may support the GPS frequency band and the N78 frequency band, or the antenna assembly 1 may support the GPS frequency band and the WiFi 5G frequency band.

[0076] Obviously, the second frequency band can also be other frequency bands, for example, other frequency bands with higher frequencies than the first frequency band, such as Bluetooth 5G band, N79 band, etc., and the electrical length between the feeding point F1 and the first end D1 of the first radiation branch 111 can be designed to be 1 / 4 of the wavelength corresponding to the corresponding frequency band.

[0077] In some embodiments, the first frequency band is a GPS frequency band, and may be a GPS-L1, GPS-L2, or GPS-L5 frequency band.

[0078] Among them, the antenna component 1 further supports the second frequency band under the excitation of the second feeding signal, which can be implemented in the structure of the antenna component 1 shown in any of the aforementioned embodiments. It only needs to design the electrical length between the feeding point F1 and the first end D1 of the first radiation branch 111 of the antenna component 1 in any of the aforementioned embodiments to be λ2 / 4.

[0079] In some embodiments, the feed source 13 may be a feed signal source obtained by mixing the first feed signal and the second feed signal through a combiner (not shown) by a radio frequency front-end circuit (not shown). In other embodiments, the feed source 13 may also include two feed sources, which are used to output the first feed signal and the second feed signal respectively.

[0080] The first radiation branch 111 and the second radiation branch 121 can be made of conductive materials such as metal materials.

[0081] In some embodiments, the antenna assembly 1 may also include the aforementioned metal ground, which may reflect the aforementioned first radiation branch 111 and the second radiation branch 121 to a certain extent, thereby improving the radiation performance. Thus, the metal ground may reflect the aforementioned first radiation branch 111 and the second radiation branch 121 to a certain extent, thereby effectively improving the radiation performance.

[0082] Therefore, the antenna component 1 of the present application, by designing two radiating units with an electrical length of λ1 / 4, can effectively excite a balanced mode through the two radiating units with an electrical length of λ1 / 4, so that radiation will not and does not need to be participated in by the metal ground, thereby ensuring that the antenna radiation pattern is consistent with the desired direction, and effectively improving the overall radiation performance of the antenna.

[0083] See also Figure 8 , is a structural block diagram of an electronic device 100 in some embodiments of the present application. Figure 8 As shown, the electronic device 100 may include the antenna assembly 1 described in any of the above embodiments. Therefore, when the electronic device 100 is equipped with the antenna assembly 1 in any of the above embodiments, the radiation does not need to be carried out through the metal ground of the electronic device 100, thereby ensuring that the antenna pattern is consistent with the desired direction, and effectively improving the overall radiation performance of the antenna.

[0084] See also Fig. 9 , is a schematic plan view of an electronic device 100 in some embodiments of the present application. Fig. 9 As shown, the electronic device 100 further includes a display screen 2. Fig. 9 FIG. 1 is a top view schematically showing the structure of the antenna assembly 1 as viewed from the display screen 2 side of the electronic device 100. Figure 1 as well as Figure 3-Figure 7 The antenna assembly 1 shown in the above figure may also be the antenna assembly 1 viewed from the side of the display screen 2 of the electronic device 100 .

[0085] The electronic device 100 further includes a frame B1 , and the first radiation branch 111 and the second radiation branch 121 are disposed on the frame B1 of the electronic device 100 and are spaced apart by a gap X1 .

[0086] In some embodiments, the frame B1 of the electronic device 100 is a metal frame, and the first radiation branch 111 and the second radiation branch 121 are metal frame segments formed by opening the gap X1 in the metal frame of the electronic device 100 .

[0087] In other embodiments, the frame B1 of the electronic device 100 is a non-metal frame, the first radiation branch 111 and the second radiation branch 121 are metal segments arranged in the frame of the electronic device 100, and the feeding branch 11 and the parasitic branch 12 are spaced apart by the gap X1.

[0088] That is, in other embodiments, the frame B1 of the electronic device 100 may also be a non-metal frame with low conductivity such as plastic, ceramic, etc. The first radiation branch 111 and the second radiation branch 121 are metal segments disposed in the frame B1 of the electronic device 100 .

[0089] The first radiation branch nodes 111 and the second radiation branch nodes 121 may be embedded in the frame of the electronic device 100 , or may be disposed on the inner side of the frame of the electronic device 100 .

[0090] like Fig. 9 As shown, the frame B1 includes two opposite long frames B11 and two opposite short frames B12. In some embodiments, the antenna assembly 1 can be arranged on the adjacent long frames B11 and short frames B12 of the electronic device 100, that is, the first radiation branch 111 and the second radiation branch 121 are arranged on the adjacent long frames B11 and short frames B12. Fig. 9 The electronic device 100 includes Figure 1 The antenna assembly 1 shown is used as an example. In other embodiments, when the first radiation branch 111 and the second radiation branch 121 are in a linear structure, the first radiation branch 111 and the second radiation branch 121 can also be arranged on one of the short borders B12, or one of the long borders B11.

[0091] The arrangement direction of the first radiation branches 111 and the second radiation branches 121 may be substantially parallel to the extension direction of the long frame B11 .

[0092] In some embodiments, the first radiation branch 111 and the second radiation branch 121 are both long strips, and the surface with the largest area of ​​the first radiation branch 111 and the second radiation branch 121 is a surface parallel to the frame surface of the frame B1, wherein the frame surface of the frame B1 is approximately perpendicular to the plane of the display screen 2 of the electronic device 100.

[0093] Among them, Fig. 9 The electronic device 100 includes a top D11, a bottom D12, and two side edges D13 and D14. The two long frames B11 are frames located at the two side edges D13 and D14 of the electronic device 100, respectively, and the two short frames B12 are frames located at the top D11 and the bottom D12 of the electronic device 100, respectively.

[0094] Among them, the directional terms such as "top" and "bottom" used in the embodiments of the present application to describe the electronic device 100 are mainly explained based on the orientation when the user holds the electronic device 100 and uses it. The position facing the top side of the electronic device 100 is the "top", and the position facing the bottom side of the electronic device 100 is the "bottom". It does not indicate or imply 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 on the orientation of the electronic device 100 in actual application scenarios. In some embodiments, the bottom D12 of the electronic device 100 is the end where the headphone jack and the charging port (such as a USB port) are provided, and the top D11 of the electronic device 100 is the other end opposite to the end where the headphone jack and the charging port are provided, and may also refer to the end where a camera, a receiver, etc. are provided.

[0095] In some embodiments, at least a portion of the first radiation branch 111 is disposed on the short frame B12 at the top D11 of the electronic device 100, and at least a portion of the second radiation branch 121 is disposed on the long frame B11 at the side of the electronic device 100, and at least a portion of the second radiation branch 121 is further away from the top D11 of the electronic device 100 than the first radiation branch 111. Thus, the second radiation branch 121 and the first radiation branch 111 are arranged substantially along the direction from the bottom D12 to the top D11 of the electronic device 100.

[0096] As mentioned above, since the first radiating branch 111 connected to the feed source 13 plays a major radiating role, the side where the first radiating branch 111 is located can be the side where the desired antenna pattern is directed. Therefore, the second radiating branch 121 and the first radiating branch 111 are arranged roughly along the direction from the bottom D12 to the top D11 of the electronic device 100, so that the antenna pattern can be directed toward the top D11 of the electronic device 100. Therefore, when the first frequency band supported by the antenna assembly 1 is the GPS frequency band, it can effectively ensure that when the user uses the electronic device 100 normally, the antenna pattern is upward, which can ensure the communication quality with the GPS satellite in the sky above, and improve the antenna performance.

[0097] In some embodiments, when the first radiation branch nodes 111 and the second radiation branch nodes 121 are in a linear structure, the first radiation branch nodes 111 and the second radiation branch nodes 121 may be disposed on a short border B12 located at the top D11 of the electronic device 100 .

[0098] Therefore, in some embodiments, the antenna assembly 1 of the present application may be disposed at a position at the top D11 of the electronic device 100 or a position close to the top D11 .

[0099] in, Fig. 9 China Figure 1 The structure of the antenna assembly 1 shown in FIG. 1 is used as an example, that is, the first radiation branch 111 is bent, and the second radiation branch 121 is a straight strip. The first radiation branch 111 includes a first sub-radiation branch 111a and a second sub-radiation branch 111b, and the first sub-radiation branch 111a and the second sub-radiation branch 111b are straight strips and are substantially vertically connected to form Fig. 9 The "L"-shaped first radiation branch 111 shown in FIG. The end of the first sub-radiation branch 111a away from the second sub-radiation branch 111b is the first end D1 of the first radiation branch 111, and the first sub-radiation branch 111a is arranged at the short frame B12 located at the top D11 of the electronic device 100, the end of the second sub-radiation branch 111b away from the first sub-radiation branch 111a is the second end D2 of the first radiation branch 111, and the second sub-radiation branch 111b is arranged at the long frame B11 located at the side of the electronic device 100. The second radiation branch 121 is arranged at the long frame B11 where the second sub-radiation branch 111b is located and is connected to the second sub-radiation branch 111b.

[0100] Therefore, the first sub-radiation branch 111 a and the second sub-radiation branch 111 b can be disposed at the top corners of the electronic device 100 , which can effectively avoid occupying too much space of the electronic device 100 and achieve a better radiation effect.

[0101] The first radiation branch 111 and the second radiation branch 121 may also be Figure 3 or Figure 4 In the structure, for example, Figure 4 In the structure shown, the first radiation branch 111 and the second radiation branch 121 are in the shape of straight strips and are respectively arranged on the short frame B12 located at the top D11 and the long frame B11 located at the side of the electronic device 100 .

[0102] like Fig. 9 As shown, the electronic device 100 further includes a mainboard 101, wherein the aforementioned feed source 13 and matching unit 15 etc. may be arranged on the mainboard 101. The aforementioned metal ground etc. may be a metal ground layer on the mainboard 101, and the aforementioned grounding member 14 may be electrically connected to the metal ground layer on the mainboard 101 to be grounded.

[0103] Among them, Fig. 9 As shown, the electronic device 100 further includes a middle frame 102, which is used to support structures such as a display screen, and the middle frame 102 is used as a whole machine ground, and the metal ground layer on the mainboard 101 is connected to the middle frame 102 to provide a ground potential, and the aforementioned metal ground etc. may also refer to the middle frame 102. Among them, the aforementioned grounding member 14 may also be directly electrically connected to the middle frame 102 to be grounded.

[0104] In some embodiments, the first radiation branch 111 and the second radiation branch 121 may also be fixed on an antenna bracket made of insulating material, and fixed in the electronic device 100 through the antenna bracket.

[0105] For example, the first radiation branch 111 and the second radiation branch 121 can be an FPC (flexible printed circuit) fixedly arranged on the antenna bracket or an LDS (Laser-Direct-structuring) metal segment formed on the antenna bracket by laser technology, or a PDS metal segment formed on the antenna bracket 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 8), and fixed in the electronic device 100 through the antenna bracket.

[0106] That is, in some other embodiments, the first radiation branch 111 and the second radiation branch 121 are fixedly disposed on the antenna bracket formed of an insulating material, and then fixed in the electronic device 100 through the antenna bracket.

[0107] The first radiation branch 111 and the second radiation branch 121 may be fixed on the mainboard 101 of the electronic device 100 via the antenna bracket.

[0108] See also Fig.10 , is a schematic diagram of the return loss and total system efficiency of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Fig.10 For Fig. 9 A schematic diagram of return loss and total system efficiency obtained by simulation test is shown, taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 being the GPS L1 frequency band as an example.

[0109] in, Fig.10 The return loss curve S11-1 and the system total efficiency curve St1 are shown in the figure. The resonant frequency of GPS L1 is about 1.575GHz. It can be seen from the figure that at the resonant frequency of 1.575GHz, the return loss corresponding to the return loss curve S11-1 is about -22dB, which is very low; the system total efficiency corresponding to the system total efficiency curve St1 is about -0.1dB, which is relatively high.

[0110] See also Fig.11 , are three-dimensional directional diagrams, antenna directional cross-sectional diagrams, and upper hemisphere proportion diagrams of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Among them, Fig.11 Likewise Fig. 9 Taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 as the GPS L1 frequency band as an example, a three-dimensional directional diagram, an antenna directional cross-sectional diagram and a schematic diagram of the upper hemisphere ratio obtained by simulation test.

[0111] in, Fig.11 The 3D directional diagram T11, the antenna directional cross-sectional diagram T21 and the upper hemisphere ratio diagram T31 are also shown. The 3D directional diagram is an antenna directional cross-sectional diagram obtained by cutting the 3D directional diagram in a plane parallel to the display screen 2 of the electronic device 100. The 3D directional diagram T11 may be a schematic diagram viewed from the front of the electronic device 100, that is, the side where the display screen 2 is located, and the antenna directional cross-sectional diagram T21 may be a schematic diagram viewed from the back of the electronic device 100.

[0112] Among them, from Fig.11It can be seen from the three-dimensional radiation pattern T11 and the antenna radiation cross-sectional pattern T21 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, this structure effectively ensures that the antenna radiation pattern is toward the top D11 of the electronic device.

[0113] The upper hemisphere proportion diagram T31 illustrates the total radiation energy A11 and the upper hemisphere radiation energy A21. The smaller the absolute value of the difference between the upper hemisphere radiation energy and the total radiation energy, the closer the upper hemisphere radiation energy is to the total radiation energy, and the higher the upper hemisphere proportion. The upper hemisphere proportion refers to the upper hemisphere radiation energy, that is, the ratio of the radiation energy of the antenna component 1 toward the top D11 of the electronic device 100 to the total radiation energy radiated by the antenna component 1 in all directions.

[0114] like Fig.11 As shown, at the resonant frequency of 1.575 GHz, the total radiation energy A11 is approximately -0.4 dB, and the upper hemisphere radiation energy A21 is approximately -2.3 dB. The difference between the two is -1.9 dB. Under normal circumstances, in the existing method of radiation through metal ground, the difference between the upper hemisphere radiation energy A21 and the total radiation energy A11 is approximately -3 dB. It can be seen that the structure of the antenna assembly 1 of the present application can effectively increase the proportion of the upper hemisphere.

[0115] See also Fig.12 , is another plan view of the electronic device 100 in some embodiments of the present application. Fig.12 The electronic device 100 shown includes Figure 5 The structure of the antenna assembly 1 shown is used as an example. Figure 5 and Fig.12 As shown, in some embodiments, the antenna assembly 1 further includes a grounding member 14 , and the grounding member 14 is connected between a connection position P0 of the first radiation branch 111 and the second radiation branch 121 and the ground.

[0116] in, Fig.12 The structure and Fig. 9 The difference is that it is further grounded through the grounding member 14. For details of other structural position relationships, please refer to Fig. 9 The relevant content will not be repeated here.

[0117] See also Fig.13 , is another schematic diagram of return loss and system total efficiency of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Fig.13 For Fig.12A schematic diagram of return loss and total system efficiency obtained by simulation test is shown, taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 being the GPS L1 frequency band as an example.

[0118] in, Fig.13 The return loss curve S11-2 and the system total efficiency curve St2 are shown in the figure. The resonant frequency of GPS L1 is about 1.575GHz. It can be seen from the figure that at the resonant frequency of 1.575GHz, the return loss corresponding to the return loss curve S11-2 is about -17dB, which is very low; the system total efficiency corresponding to the system total efficiency curve St1 is about -02dB, which is also relatively high.

[0119] See also Fig.14 , are the three-dimensional directional diagram and antenna directional cross-sectional diagram of the antenna assembly 1 of the electronic device 100 at 1.57 GHz in some embodiments of the present application. Among them, Fig.14 For Fig.12 Taking the structure of the electronic device 100 shown in the figure, in which the first frequency band supported by the antenna assembly 1 is the GPS L1 frequency band and operates at the frequency point of 1.57 GHz as an example, a three-dimensional directional diagram and an antenna directional cross-sectional diagram are obtained by simulation test.

[0120] The figure shows a three-dimensional directional diagram T12 and an antenna directional cross-sectional diagram T22. Fig.14 It can be seen from the three-dimensional radiation pattern T12 and the antenna radiation cross-sectional pattern T22 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, this structure effectively ensures that when working at 1.57Ghz, the antenna radiation pattern is toward the top D11 of the electronic device.

[0121] See also Fig.15 , are the three-dimensional directional diagram and antenna directional cross-sectional diagram of the antenna assembly 1 of the electronic device 100 at 1.575 GHz in some embodiments of the present application. Among them, Fig.15 For Fig.12 Taking the structure of the electronic device 100 shown in the figure, in which the first frequency band supported by the antenna assembly 1 is the GPS L1 frequency band and operates at the frequency point of 1.575 GHz as an example, a three-dimensional directional diagram and an antenna directional cross-sectional diagram are obtained by simulation test.

[0122] The figure shows a three-dimensional directional diagram T13 and an antenna directional cross-sectional diagram T23. Fig.15It can be seen from the three-dimensional radiation pattern T13 and the antenna radiation cross-sectional pattern T23 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, this structure effectively ensures that when working at 1.575Ghz, the antenna radiation pattern is toward the top D11 of the electronic device.

[0123] See also Fig.16 , is a schematic diagram of the upper hemisphere ratio of the antenna assembly 1 of the electronic device 100 at 1.58 GHz in some embodiments of the present application. Fig.16 Likewise Fig.12 Taking the structure of the electronic device 100 shown in the figure, in which the first frequency band supported by the antenna assembly 1 is the GPS L1 frequency band and operates at the frequency point of 1.58 GHz as an example, a three-dimensional directional diagram and an antenna directional cross-sectional diagram are obtained by simulation test.

[0124] in, Fig.16 The three-dimensional directional diagram T14 and the antenna directional cross-sectional diagram T24 are shown in FIG. Fig.16 It can be seen from the three-dimensional radiation pattern T14 and the antenna radiation cross-sectional pattern T24 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, this structure effectively ensures that when working at 1.58Ghz, the antenna radiation pattern is toward the top D11 of the electronic device.

[0125] See also Fig.17 , is another upper hemisphere proportion diagram of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Fig.17 Likewise Fig.12 Taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 as the GPS L1 frequency band as an example, and when working at multiple frequency points, a schematic diagram of the upper hemisphere proportion obtained by simulation test is shown.

[0126] in, Fig.17 It illustrates the total radiation energy A12 and upper hemisphere radiation energy A22 when working at 1.57 GHz, the total radiation energy A13 and upper hemisphere radiation energy A23 when working at 1.575 GHz, and the total radiation energy A14 and upper hemisphere radiation energy A24 when working at 1.58 GHz.

[0127] from Fig.17It can be seen that at 1.57Ghz, the total radiation energy A12 is approximately -0.2, and the upper hemisphere radiation energy A22 is approximately -2.25dB, and the difference between the two is -2.05dB; at 1.575Ghz, the total radiation energy A13 is approximately -0.2, and the upper hemisphere radiation energy A23 is approximately -2.3dB, and the difference between the two is -2.1dB; at 1.58Ghz, the total radiation energy A14 is approximately -0.25, and the upper hemisphere radiation energy A24 is approximately -2.35dB, and the difference between the two is -2.1dB. As mentioned above, in the existing method of radiation through metal ground, the difference between the upper hemisphere radiation energy A2 and the total radiation energy A1 is approximately -3dB, and the smaller the absolute value of the difference, the higher the proportion of the upper hemisphere. It can be seen that through Fig.14 The structure shown can effectively increase the upper hemisphere proportion at multiple frequency points / frequencies.

[0128] Generally speaking, the resonant frequency of the GPS L1 band is 1.575 GHz. Fig.12 The structure of the antenna assembly 1 included in the electronic device 100 shown has an antenna radiation pattern at 1.57 GHz and 1.58 GHz that is basically oriented toward the top D11 of the electronic device 100 , and the upper hemisphere accounts for a relatively high proportion, thereby effectively widening the bandwidth.

[0129] See also Fig.18 , is another plan view of the electronic device 100 in some embodiments of the present application. Fig.18 The electronic device 100 shown includes Figure 6 The structure of the antenna assembly 1 shown is used as an example. Figure 6 and Fig.18 As shown, in some embodiments, at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15. Figure 6 and Fig.18 It is illustrated that both the first radiation unit 11 and the second radiation unit 12 include a matching unit 15 .

[0130] in, Fig.18 The structure and Fig. 9 The difference is that at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15, and the sum of the equivalent electrical length of the matching unit 15 and the electrical length of the first radiation branch 111 or the second radiation branch 121 is equal to λ1 / 4, thereby effectively reducing the size of the first radiation branch 111 and / or the second radiation branch 121; For details of other structural position relationships, please refer to Fig. 9 The relevant content will not be repeated here.

[0131] See also Fig.19 , is another schematic diagram of return loss and system total efficiency of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Fig.19 For Fig.18 A schematic diagram of return loss and total system efficiency obtained by simulation test is shown, taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 being the GPS L1 frequency band as an example.

[0132] in, Fig.19 The return loss curve S11-3 and the system total efficiency curve St3 are shown in the figure. The resonant frequency of GPS L1 is about 1.575GHz. It can be seen from the figure that at the resonant frequency of 1.575GHz, the return loss corresponding to the return loss curve S11-1 is about -17.5dB, which is very low; the system total efficiency corresponding to the system total efficiency curve St1 is about -2dB, which is relatively high.

[0133] See also Fig. 20 , is another three-dimensional directional diagram, antenna directional cross-sectional diagram and upper hemisphere ratio diagram of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Among them, Fig. 20 Likewise Fig.18 Taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 as the GPS L1 frequency band as an example, a three-dimensional directional diagram, an antenna directional cross-sectional diagram and a schematic diagram of the upper hemisphere ratio obtained by simulation test.

[0134] in, Fig. 20 The three-dimensional radiation pattern T15, the antenna radiation cross-sectional diagram T25 and the upper hemisphere proportion diagram T32 are also shown.

[0135] Among them, from Fig. 20 It can be seen from the three-dimensional radiation pattern T15 and the antenna radiation cross-sectional pattern T25 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, this structure can also effectively ensure that the antenna radiation pattern is toward the top D11 of the electronic device.

[0136] The upper hemisphere ratio diagram T32 shows the total radiation energy A15 and the upper hemisphere radiation energy A25. Fig. 20 As shown in the figure, at the resonant frequency of 1.575 GHz, the total radiation energy A15 is approximately -0.3 dB, the upper hemisphere radiation energy A25 is approximately -2.1 dB, and the difference between the two is -1.8 dB. As mentioned above, in general, in the existing method of radiation through metal ground, the difference between the upper hemisphere radiation energy A25 and the total radiation energy A15 is approximately -3 dB. Fig.18The structure of the antenna assembly 1 included in the electronic device 100 shown can effectively increase the proportion of the upper hemisphere.

[0137] See also Fig.21 , is another schematic plan view of the electronic device 100 in some embodiments of the present application. Fig.21 The electronic device 100 shown includes Figure 7 The structure of the antenna assembly 1 shown is used as an example. Figure 7 and Fig.21 As shown, in some embodiments, at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15, and the antenna assembly further includes a grounding member 14, and the grounding member 14 is connected between the connection position P0 of the first radiation branch 111 and the second radiation branch 121 and the ground. That is, in some embodiments, when at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15, the antenna assembly further includes a grounding member 14.

[0138] Among them, regarding the matching unit 15, Figure 7 and Fig.21 It is also illustrated that both the first radiation unit 11 and the second radiation unit 12 include a matching unit 15 .

[0139] in, Fig.21 The structure and Fig. 9 The difference is that at least one of the first radiation unit 11 and the second radiation unit 12 further includes a matching unit 15, and the connection position P0 of the first radiation branch 111 and the second radiation branch 121 is also grounded through the grounding member 14; the specific relationship of other structural positions can be found in Fig. 9 The relevant content will not be repeated here.

[0140] See also Fig. 22 , is another schematic diagram of return loss and system total efficiency of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Fig. 22 For Fig.21 A schematic diagram of return loss and total system efficiency obtained by simulation test is shown, taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 being the GPS L1 frequency band as an example.

[0141] in, Fig. 22 The return loss curve S11-4 and the system total efficiency curve St4 are shown in FIG. Among them, the resonant frequency of GPS L1 is about 1.575 GHz. Fig. 22It can be seen that at the resonant frequency of 1.575 GHz, the return loss corresponding to the return loss curve S11-4 is approximately -10.5 dB, and the return loss is very low; the system total efficiency corresponding to the system total efficiency curve St4 is approximately -1.5 dB, and the system total efficiency is relatively high.

[0142] See also Fig.23 , is another three-dimensional directional diagram, antenna directional cross-sectional diagram and upper hemisphere ratio diagram of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Among them, Fig.23 Likewise Fig.21 Taking the structure of the electronic device 100 shown in the figure and the first frequency band supported by the antenna assembly 1 as the GPS L1 frequency band as an example, a three-dimensional directional diagram, an antenna directional cross-sectional diagram and a schematic diagram of the upper hemisphere ratio obtained by simulation test.

[0143] in, Fig.23 The three-dimensional radiation pattern T16, the antenna radiation cross-sectional pattern T26 and the upper hemisphere proportion pattern T33 are also shown.

[0144] Among them, from Fig.23 It can be seen from the three-dimensional radiation pattern T16 and the antenna radiation cross-sectional pattern T26 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, this structure can also effectively ensure that the antenna radiation pattern is toward the top D11 of the electronic device.

[0145] The upper hemisphere ratio diagram T33 shows the total radiation energy A16 and the upper hemisphere radiation energy A26. Fig.23 As shown in the figure, at the resonant frequency of 1.575 GHz, the total radiation energy A16 is approximately -0.3 dB, and the upper hemisphere radiation energy A26 is approximately -2.1 dB, with a difference of -1.8 dB. As mentioned above, in general, in the existing method of radiation through metal ground, the difference between the upper hemisphere radiation energy and the total radiation energy is approximately -3 dB. Fig.21 The structure of the antenna assembly 1 included in the electronic device 100 shown can also effectively increase the proportion of the upper hemisphere.

[0146] See also Fig.24 , is a schematic diagram of other return losses and system total efficiency of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Among them, Fig.24 For Fig.21Taking the structure of the electronic device 100 shown, in which the first frequency band supported by the antenna component 1 is the GPS L1 frequency band, and the antenna component 1 also supports the second frequency band and the second frequency band is the N78 frequency band as an example, a schematic diagram of the return loss and the total system efficiency obtained by simulation test is shown. Wherein, as mentioned above, when the electrical length between the feeding point F1 and the first end D1 of the first radiating branch 111 is designed to be λ2 / 4, the antenna component 1 can further support the second frequency band under the excitation of the second feeding signal. Wherein, λ2 is the wavelength corresponding to the second frequency band supported by the antenna component 1 under the excitation of the second feeding signal, for example, when the second frequency band is the N78 frequency band, it is the wavelength corresponding to the resonant frequency of the N78 frequency band.

[0147] in, Fig.24 The return loss curve S11-5 and the system total efficiency curve St5 are shown in FIG. Among them, the resonant frequency of GPS L1 is about 1.575 GHz, and the resonant frequency of the N78 band is about 3.55 GHz. Fig.24 It can be seen that at the resonant frequency of 1.575GHz, the return loss corresponding to the return loss curve S11-5 is about -23dB, which is very low; the total system efficiency corresponding to the system total efficiency curve St5 is about -0.1dB, which is very high. At the resonant frequency of 3.55GHz, the return loss corresponding to the return loss curve S11-5 is about -8dB, which is relatively low; the total system efficiency corresponding to the system total efficiency curve St5 is about -1dB, which is very high.

[0148] It can be seen that in Fig.21 Under the structure of the electronic device 100 shown, and the first frequency band supported by the antenna component 1 is the GPS L1 frequency band, and the antenna component 1 also supports the second frequency band and the second frequency band is the N78 frequency band, the return loss in the first frequency band and the second frequency band are both low, and the overall system efficiency is very high.

[0149] See also Fig.25 , are other three-dimensional directional diagrams, antenna directional cross-sectional diagrams, and upper hemisphere proportion diagrams of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Among them, Fig.25 Likewise Fig.21 Taking the structure of the electronic device 100 shown in the figure, in which the first frequency band supported by the antenna component 1 is the GPS L1 frequency band, and the antenna component 1 also supports a second frequency band and the second frequency band is the N78 frequency band as an example, a three-dimensional directional diagram, an antenna directional cross-sectional diagram and a schematic diagram of the upper hemisphere proportion obtained by simulation tests.

[0150] in, Fig.25Also illustrated are the three-dimensional radiation diagram T17 of the GPS L1 frequency band, the antenna radiation cross-sectional diagram T27, and the upper hemisphere proportion diagram T34.

[0151] Among them, from Fig.25 It can be seen from the three-dimensional radiation pattern T17 and the antenna radiation cross-sectional pattern T27 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, when the antenna assembly 1 supports the first frequency band and the second frequency band at the same time and the second frequency band is the N78 frequency band, this structure can also effectively ensure that the antenna radiation pattern of the GPSL1 frequency band is toward the top D11 of the electronic device.

[0152] The upper hemisphere ratio diagram T34 shows the total radiation energy A17 and the upper hemisphere radiation energy A27. Fig.25 As shown in FIG. 1 , at the resonant frequency of 1.575 GHz, the total radiation energy A17 is approximately -0.4 dB, and the upper hemisphere radiation energy A27 is approximately -2.3 dB, with a difference of -1.9 dB. Fig.21 The electronic device 100 shown includes an antenna assembly 1 structure, and when the antenna assembly 1 supports both the first frequency band and the second frequency band and the second frequency band is the N78 frequency band, the first frequency band, that is, the upper hemisphere share of the GPS L1, can also be effectively improved.

[0153] See also Fig.26 , is another schematic diagram of the return loss and total system efficiency of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Fig.26 For Fig.21 Taking the structure of the electronic device 100 shown, in which the first frequency band supported by the antenna assembly 1 is the GPS L1 frequency band, and the antenna assembly 1 also supports the second frequency band and the second frequency band is the WiFi5G frequency band as an example, a schematic diagram of the return loss and the total system efficiency obtained by simulation test. Wherein, as mentioned above, when the electrical length between the feeding point F1 and the first end D1 of the first radiation branch 111 is designed to be λ2 / 4, the antenna assembly 1 can further support the second frequency band under the excitation of the second feed signal. Wherein, λ2 is the wavelength corresponding to the second frequency band supported by the antenna assembly 1 under the excitation of the second feed signal, for example, when the second frequency band is the WiFi 5G frequency band, it is the wavelength corresponding to the resonant frequency of the WiFi 5G frequency band.

[0154] in, Fig.26 The return loss curve S11-6 and the system total efficiency curve St6 are shown in FIG. Among them, the resonant frequency of GPS L1 is approximately 1.575 GHz, and the resonant frequency of the WiFi 5G band is approximately 5.5 GHz. Fig.26 It can be seen that at the resonant frequency of 1.575GHz, the return loss corresponding to the return loss curve S11-6 is approximately -17.5dB, which is very low; the total system efficiency corresponding to the system total efficiency curve St6 is approximately -0.2dB, which is very high. At the resonant frequency of 5.5GHz, the return loss corresponding to the return loss curve S11-6 is approximately -17dB, which is very low; the total system efficiency corresponding to the system total efficiency curve St6 is approximately -0.1dB, which is very high.

[0155] It can be seen that in Fig.21 Under the structure of the electronic device 100 shown, when the first frequency band supported by the antenna component 1 is the GPS L1 frequency band, and the antenna component 1 also supports a second frequency band and the second frequency band is a WiFi 5G frequency band, the return losses in the first frequency band and the second frequency band are both very low, and the overall system efficiency is very high.

[0156] See also Fig. 27 , is another three-dimensional directional diagram, antenna directional cross-sectional diagram and upper hemisphere proportion diagram of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application. Among them, Fig. 27 Likewise Fig.21 Taking the structure of the electronic device 100 shown in the figure, in which the first frequency band supported by the antenna component 1 is the GPS L1 frequency band, and the antenna component 1 also supports a second frequency band and the second frequency band is the WiFi 5G frequency band as an example, a three-dimensional directional diagram, an antenna directional cross-sectional diagram and a schematic diagram of the upper hemisphere proportion obtained by simulation tests are performed.

[0157] in, Fig. 27 Also illustrated are the three-dimensional radiation diagram T18 of the GPS L1 frequency band, the antenna radiation cross-sectional diagram T28, and the upper hemisphere proportion diagram T35.

[0158] Among them, from Fig. 27 It can be seen from the three-dimensional radiation pattern T18 and the antenna radiation cross-sectional pattern T28 that the antenna direction of the electronic device 100 is roughly toward the top D11 of the electronic device 100. Therefore, when the antenna assembly 1 supports the first frequency band and the second frequency band at the same time and the second frequency band is the N78 frequency band, this structure can also effectively ensure that the antenna radiation pattern of the GPSL1 frequency band is toward the top D11 of the electronic device.

[0159] The upper hemisphere ratio diagram T35 shows the total radiation energy A18 and the upper hemisphere radiation energy A28. Fig. 27As shown in FIG. 1 , at the resonant frequency of 1.575 GHz, the total radiation energy A18 is approximately -0.5 dB, and the upper hemisphere radiation energy A28 is approximately -2.36 dB, and the difference between the two is -1.86 dB. Fig.21 The electronic device 100 shown includes the structure of an antenna component 1, and when the antenna component 1 supports the first frequency band and the second frequency band at the same time and the second frequency band is the WiFi 5G frequency band, it can also effectively improve the upper hemisphere share of the first frequency band, that is, the GPS L1.

[0160] 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.

[0161] The antenna assembly 1 and electronic device 100 of the present application are designed with two radiating units each having an electrical length of λ1 / 4, so that the balanced mode can be effectively excited through the two radiating units each having an electrical length of λ1 / 4, so that the radiation will not be involved through the metal ground and there is no need to participate in the radiation. Thus, the problem of the antenna pattern being significantly deviated from the desired direction when the metal ground is used to participate in the radiation in the prior art is avoided, and the overall radiation performance of the antenna can be effectively improved. In addition, the antenna assembly 1 and electronic device 100 of the present application can also effectively reduce the electrical length of the radiating branch by configuring a matching unit, and can also support multiple frequency bands, effectively improving the antenna utilization rate through a simple structure.

[0162] 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.

[0163] 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 antenna assembly, characterized in that: include: A first radiation unit, comprising a first radiation branch, wherein the first radiation branch comprises a first end, a second end and a feeding point, and the first end is an open-circuit end; A second radiation unit includes a second radiation branch, wherein the second radiation branch includes a third end and a fourth end, the third end is connected to the second end of the first radiation branch, and the fourth end is an open end; A feed source, connected to a feeding point of the first radiation branch, and used for feeding a first feeding signal through the feeding point; The electrical lengths of the first radiation unit and the second radiation unit are both λ1 / 4, wherein λ1 is the wavelength corresponding to the first frequency band supported by the antenna assembly under the excitation of the first feeding signal.

2. The antenna assembly according to claim 1, characterized in that: The first radiating branch and the second radiating branch form a bent structure as a whole; and one of the first radiating branch and the second radiating branch is in a straight bar shape, and the other is in a bent shape, or the first radiating branch and the second radiating branch are both in a straight bar shape.

3. The antenna assembly according to claim 1, characterized in that: The first radiation unit only includes the first radiation branch, the second radiation unit only includes the second radiation branch, and the electrical lengths of the first radiation branch and the second radiation branch are both λ1 / 4.

4. The antenna assembly according to claim 3, characterized in that: The antenna assembly further includes a grounding element connected between a connection position between the first radiation branch and the second radiation branch and a ground.

5. The antenna assembly according to claim 1, characterized in that: At least one of the first radiation unit and the second radiation unit also includes a matching unit. When the first radiation unit or the second radiation unit includes the matching unit, the matching unit is used to perform impedance matching adjustment on the first radiation branch or the second radiation branch, and the sum of the equivalent electrical length of the matching unit and the electrical length of the first radiation branch or the second radiation branch is equal to λ1 / 4.

6. The antenna assembly according to claim 5, characterized in that: When the first radiating unit includes the matching unit, the matching unit is connected between the feeding point and the feed source; when the second radiating unit includes the matching unit, the matching unit is connected between a preset position of the second radiating branch and the ground, and the preset position is a position between the third end and the fourth end of the second radiating branch.

7. The antenna assembly according to claim 5, characterized in that: The antenna assembly further includes a grounding element connected between a connection position between the first radiation branch and the second radiation branch and a ground.

8. The antenna assembly according to any one of claims 1 to 7, characterized in that: The feed source is also used to feed a second feed signal through the feed point, and the electrical length between the feed point and the first end of the first radiating branch is λ2 / 4, wherein λ2 is the wavelength corresponding to the second frequency band supported by the antenna assembly under the excitation of the second feed signal.

9. The antenna assembly according to claim 8, characterized in that: The second frequency band is the N78 frequency band or the WiFi 5G frequency band.

10. The antenna assembly according to claim 1, characterized in that: The first frequency band is a GPS frequency band.

11. The antenna assembly according to claim 10, characterized in that: The GPS frequency band is GPS-L1, GPS-L2 or GPS-L5.

12. An electronic device, characterized in that: The electronic device comprises the antenna assembly as described in any one of claims 1-11.

13. The electronic device according to claim 12, characterized in that: The electronic device further includes a frame, and the first radiation branch and the second radiation branch are arranged on the frame of the electronic device and are spaced apart by gaps.

14. The electronic device according to claim 13, characterized in that: The frame is a metal frame, and the first radiation branch and the second radiation branch are two metal frame segments formed by opening gaps in the metal frame of the electronic device.

15. The electronic device according to claim 13, characterized in that: The frame is a non-metal frame, and the first radiation branch and the second radiation branch are metal segments arranged in the frame of the electronic device.

16. The electronic device according to claim 13, characterized in that: The frame includes two opposite long frames and two opposite short frames, and the first radiation branches and the second radiation branches are arranged on adjacent long frames and short frames.

17. The electronic device according to claim 13, characterized in that: The antenna assembly is disposed on the top of the electronic device and / or at a position close to the top of the electronic device.

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