Antenna and electronic equipment

Abstract

The invention discloses an antenna and electronic equipment, and relates to the technical field of antennas. The antenna comprises a feed circuit, a first matching assembly, a second matching assembly and a radiation assembly, the feed circuit is electrically connected with the radiation assembly, the radiation assembly comprises a first radiation body, a second radiation body, a third radiation body and a fourth radiation body which are sequentially arranged at intervals, and a first fracture is formed between the first radiation body and the second radiation body. A second fracture is arranged between the second radiator and the third radiator, and a third fracture is arranged between the third radiator and the fourth radiator; the first matching assembly is bridged to the first fracture, and the second matching assembly is bridged to the third fracture; wherein the first radiating body, the second radiating body, the third radiating body and the fourth radiating body form six effective radiating bodies, and different effective radiating bodies in the six effective radiating bodies have different working frequency bands.

Description

Technical Field

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

[0002] With the development of modern communication technology, the performance, functions, and integration of terminal equipment are constantly improving to meet the increasingly rich and varied usage scenarios and user needs. The performance of metal frame antennas, which are currently widely used in terminal equipment, is generally subject to the high integration and extreme appearance design of the equipment. With the continuous development of the fifth generation (5th Generation, 5G) mobile communication technology and the enrichment of communication scenarios, the number of antennas contained in terminal equipment is increasing to meet the ever-expanding operating frequency range. At the same time, ultra-thin and long battery life of terminal equipment are experience requirements that consumers are very concerned about. Ultra-thin and ultra-long battery life will inevitably lead to an increase in battery space, which in turn leads to compression of the main board and sub-board space, as well as extreme compression of the antenna layout space. It can be seen that the existing terminal equipment has insufficient antenna layout space. Summary of the invention

[0003] The present application provides an antenna and an electronic device, which are helpful in alleviating the problem of insufficient antenna layout space in existing terminal devices.

[0004] In a first aspect, the present application provides an antenna, comprising: a feeding circuit, a first matching component, a second matching component and a radiating component, wherein the feeding circuit is electrically connected to the radiating component, the radiating component comprises a first radiator, a second radiator, a third radiator and a fourth radiator which are sequentially arranged at intervals, a first break is provided between the first radiator and the second radiator, a second break is provided between the second radiator and the third radiator, and a third break is provided between the third radiator and the fourth radiator; the first matching component is bridged across the first break, and the second matching component is bridged across the third break;

[0005] Among them, the first radiator, the second radiator, the third radiator and the fourth radiator constitute six effective radiators, among which different effective radiators have different operating frequency bands, and the six effective radiators include: the first radiator, the second radiator, the third radiator, the fourth radiator, an equivalent radiator formed by connecting the first radiator and the second radiator through the first matching component, and an equivalent radiator formed by connecting the third radiator and the fourth radiator through the second matching component.

[0006] In a second aspect, the present application provides an electronic device, comprising the antenna described in the first aspect.

[0007] In the embodiment of the present application, since the radiation component includes a first radiator, a second radiator, a third radiator and a fourth radiator arranged in sequence, by bridging the first matching component at the first break between the first radiator and the second radiator, and bridging the second matching component at the third break between the third radiator and the fourth radiator, six effective radiators can be formed based on four radiators, thereby covering 6 different frequency bands, which is conducive to the layout of more antennas in a smaller antenna space, thereby alleviating the problem of insufficient antenna layout space in existing terminal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is one of the structural schematic diagrams of an antenna provided in an embodiment of the present application;

[0009] Figure 2 This is a second structural diagram of an antenna provided in an embodiment of the present application;

[0010] Figure 3 This is a third structural diagram of an antenna provided in an embodiment of the present application;

[0011] Figure 4 This is a fourth structural diagram of an antenna provided in an embodiment of the present application;

[0012] Figure 5 In the embodiment of the present application Figure 1 A simulation schematic diagram obtained by simulating the antenna shown;

[0013] Figure 6 is a simulation schematic diagram obtained by simulating the antenna after a third matching circuit is provided between the feeding circuit and the radiating component;

[0014] Figure 7 is a simulation schematic diagram obtained after a third matching circuit is provided between the feeding circuit and the radiating component, and a tuning circuit is provided in the radiator of the radiating component as required;

[0015] Figure 8 yes Figure 7 Simulation diagram of the corresponding fundamental modes. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0017] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0018] In the following, in conjunction with the accompanying drawings, an antenna and an electronic device provided in an embodiment of the present application are described in detail through specific embodiments and their application scenarios.

[0019] See also Figure 1-4 , Figure 1-4 A schematic diagram of the structure of an antenna provided in an embodiment of the present application, the antenna comprising a feeding circuit 100, a first matching component 200, a second matching component 300 and a radiating component 400, the feeding circuit 100 is electrically connected to the radiating component 400, the radiating component 400 comprises a first radiator 410, a second radiator 420, a third radiator 430 and a fourth radiator 440 arranged in sequence, a first break 450 is provided between the first radiator 410 and the second radiator 420, a second break 460 is provided between the second radiator 420 and the third radiator 430, and a third break 470 is provided between the third radiator 430 and the fourth radiator 440; the first matching component 200 is bridged across the first break 450, and the second matching component 300 is bridged across the third break 470;

[0020] Among them, the first radiator 410, the second radiator 420, the third radiator 430 and the fourth radiator 440 constitute six effective radiators, among which different effective radiators have different operating frequency bands. The six effective radiators include: the first radiator 410, the second radiator 420, the third radiator 430, the fourth radiator 440, an equivalent radiator formed by connecting the first radiator 410 with the second radiator 420 through the first matching component 200, and an equivalent radiator formed by connecting the third radiator 430 with the fourth radiator 440 through the second matching component 300.

[0021] The shapes of the first radiator 410 , the second radiator 420 , the third radiator 430 and the fourth radiator 440 can be set according to needs or specific scenarios. For example, they can be various common antenna radiator shapes such as strips or plates.

[0022] In some embodiments of the present application, the first radiator 410, the second radiator 420, the third radiator 430, and the fourth radiator 440 may be strip-shaped metal branches in various antenna scenarios. For example, the first radiator 410, the second radiator 420, the third radiator 430, and the fourth radiator 440 may be four strip-shaped metal branches arranged in sequence in a metal frame of an electronic device. For another example, the first radiator 410, the second radiator 420, the third radiator 430, and the fourth radiator 440 may also be strip-shaped metal branches of an antenna inside an electronic device.

[0023] The first matching component 200 is connected across the first break 450, which means that one end of the first matching component 200 is connected to the first radiator 410, and the other end of the first matching component 200 is connected to the second radiator 420. Correspondingly, the second matching component 300 is connected across the third break 470, which means that one end of the second matching component 300 is connected to the third radiator 430, and the other end of the second matching component 300 is connected to the fourth radiator 440.

[0024] The number of radiators included in the radiation component 400 may be 4 or more than 4, and may be specifically set according to actual needs.

[0025] For ease of understanding, the six effective radiators are referred to as L1, L2, L3, L4, L5 and L6 below. Among them, L1 is the effective radiator formed by the first radiator 410; L2 is the effective radiator formed by the second radiator 420; L3 is the effective radiator formed by the third radiator 430; L4 is the effective radiator formed by the fourth radiator 440; L5 is the equivalent radiator formed by the first radiator 410 connected to the second radiator 420 through the first matching component 200; L6 is the equivalent radiator formed by the third radiator 430 connected to the fourth radiator 440 through the second matching component 300.

[0026] The first matching component 200 and the second matching component 300 can generate different states for antenna signals of different frequency bands. For example, for antenna signals of frequency bands corresponding to L1, L2, L3, and L4, the first matching component 200 and the second matching component 300 can be in an open circuit state, so that L1, L2, L3, and L4 can each independently generate a fundamental mode; correspondingly, for antenna signals of frequency bands corresponding to L5 and L6, the first matching component 200 and the second matching component 300 can be in a connected state, so that the L1 and L2 can be conducted as a whole through the first matching component 200 to form L5. At this time, the fundamental modes of L1 and L2 exist while the fundamental modes of L5 are additionally generated, thereby adding a mode L5. At the same time, ensure that L3 and L4 can be conducted as a whole through the second matching component 300 to form L6. At this time, the fundamental modes of L3 and L4 exist while the fundamental modes of L6 are additionally generated, thereby adding a mode L6. In this way, through the action of the two matching components, 2 additional fundamental modes can be added to the original 4 fundamental modes, thereby achieving the coexistence of 6 fundamental modes.

[0027] It can be understood that the specific structure of the first matching component 200 and the second matching component 300 as a frequency selection network can be set as needed, and it is only necessary to ensure that the first matching component 200 and the second matching component 300 can be in an open circuit state for the antenna signals of the frequency bands corresponding to L1, L2, L3, and L4, and the first matching component 200 and the second matching component 300 can be in a closed state for the antenna signals of the frequency bands corresponding to L5 and L6.

[0028] Specifically, during the operation of the antenna, antenna signals of the six working frequency bands corresponding to the six effective radiators can be fed to the radiation component 400 through the feeding circuit 100, so that the antenna can cover six different frequency bands at the same time. The specific frequency band ranges of the six working frequency bands can be set as needed. In theory, the antenna provided by the embodiment of the present application can cover any frequency band at the same time.

[0029] In some embodiments of the present application, taking the working frequency band corresponding to L1, L2, L3, and L4 as the middle-high frequency band (Middle-High Band, MHB), and the working frequency band corresponding to L5 and L6 as the low frequency band (Low Band, LB) as an example, the working principle of the antenna provided in the embodiment of the present application is further explained. Among them, the above-mentioned first matching component 200 and the second matching component 300 can be used for the antenna signal disconnection of MHB and the antenna signal path of LB. Specifically, for the antenna signal of LB, the first matching component 200 and the second matching component 300 can be equivalent to a small inductor to achieve the conduction of the antenna signal of LB. Correspondingly, for the antenna signal of MHB, the first matching component 200 and the second matching component 300 can be equivalent to a large inductor or a small capacitor to achieve the antenna signal disconnection of MHB.

[0030] The reason why the embodiment of the present application bridges the matching components at the first break 450 and the third break 470, but does not bridge the matching components at the second break 460, is that: if the matching components are bridged at the second break 460, the coexistence state of the above six fundamental modes will be destroyed. The reason is that: since the matching components are configured to disconnect the antenna signal for MHB and the antenna signal for LB, if the matching components are bridged at the second break 460, since the two low-frequency frequency selection networks of the first matching component 200 and the second matching component 300 are turned on in the antenna frequency band corresponding to L5 and L6, therefore, in this case, it is necessary to ensure The matching component connected across the second break 460 is not turned on, so that the two fundamental modes of L5 and L6 are not destroyed, that is, the second break 460 can only be connected across a lower frequency frequency selection network, and if the second break 460 is connected across a lower frequency frequency selection network, the capacitor in the frequency selection network has the function of passing high frequency, so it often causes the high frequency at the second break 460 to be turned on, that is, L2 and L3 are turned on by the matching component at the second break 460 in the high frequency state, so that the L2 and L3 modes disappear, and there are five modes of L1, L4, L5, L6 and L7 at this time, among which L7 is a lower frequency mode newly added after L2 and L3 are turned on. Based on this, in the embodiment of the present application, no matching component is set at the second break 460 to increase the number of fundamental modes of the antenna.

[0031] The above-mentioned feeding circuit 100 is electrically connected to the radiating component 400, which may mean that the feeding circuit 100 is electrically connected to any radiator in the radiating component 400. For example, see Figure 1In some embodiments of the present application, the feed circuit 100 is electrically connected to one end of the first radiator 410, and the other end of the first radiator 410 is suspended. In addition, all other radiators are suspended, wherein the radiator suspension means that it is not connected to the floor. It should be noted that one or more radiators in the radiation component 400 may be grounded as long as the corresponding fundamental mode can be excited.

[0032] In this embodiment, since the radiation component 400 includes a first radiator 410, a second radiator 420, a third radiator 430 and a fourth radiator 440 which are arranged in sequence, by bridging the first matching component 200 at the first break 450 between the first radiator 410 and the second radiator 420, and bridging the second matching component 300 at the third break 470 between the third radiator 430 and the fourth radiator 440, six effective radiators can be formed based on four radiators, thereby covering six different frequency bands, which is conducive to the layout of more antennas in a smaller antenna space, thereby alleviating the problem of insufficient antenna layout space in existing terminal devices.

[0033] Optionally, the first matching component 200 is a first matching circuit 240; or, the first matching component 200 includes a first connecting branch 210, a first coupling branch 220 and a second coupling branch 230, the first connecting branch 210 is bridged across the first break 450, the first coupling branch 220 is connected to the first radiator 410, the second coupling branch 230 is connected to the second radiator 420, and the first coupling branch 220 is coupled to the second coupling branch 230, and the length of the first connecting branch 210 is greater than a first distance value, wherein the first distance value is the distance between the first radiator 410 and the second radiator 420.

[0034] In some embodiments of the present application, the first matching component 200 may be a first matching circuit 240, and the first matching circuit 240 may be various matching circuits capable of realizing "antenna signal disconnection for MHB and antenna signal path for LB". For example, the first matching circuit 240 may be a matching circuit formed by a capacitor and an inductor in parallel. For example, the first matching circuit 240 is a matching circuit formed by a 10NH inductor and a 0.8P capacitor in parallel. For another example, the first matching circuit 240 is a matching circuit formed by a 11NH inductor and a 0.9P capacitor in parallel.

[0035] In some other embodiments of the present application, the first matching component 200 may also be a structure having the function of a matching circuit formed by connections between metal branches. For example, the first matching component 200 includes a first connecting branch 210, a first coupling branch 220, and a second coupling branch 230. Since the first connecting branch 210 is connected across the first break 450, and the length of the first connecting branch 210 is greater than the first distance value, the first connecting branch 210 may be equivalent to an inductor connected across the first break 450. The inductance value of the inductor equivalent to the first connecting branch 210 may be adjusted by adjusting the length of the first connecting branch 210. Specifically, the length of the first connecting branch 210 may be adjusted by bending or twisting the first connecting branch 210. For example, see Figure 2 , the first connecting branch 210 can be in a triangular shape. In addition, the first connecting branch 210 can also be in other shapes, such as an arc shape, a snake shape, etc. Correspondingly, since the first coupling branch 220 is connected to the first radiator 410, the second coupling branch 230 is connected to the second radiator 420, and the first coupling branch 220 is coupled to the second coupling branch 230, the first coupling branch 220 and the second coupling branch 230 can be equivalent to a capacitor across the first break 450. Specifically, the capacitance value of the capacitor equivalent to the first coupling branch 220 and the second coupling branch 230 can be adjusted by adjusting the spacing or coupling area between the first coupling branch 220 and the second coupling branch 230. In this way, the first connecting branch 210, the first coupling branch 220 and the second coupling branch 230 can be equivalent to a capacitor and an inductor connected in parallel at the first break 450.

[0036] The first coupling branch 220 and the second coupling branch 230 may be coupled via a gap therebetween. Specifically, in order to achieve coupling between the first coupling branch 220 and the second coupling branch 230, the first coupling branch 220 and the second coupling branch 230 may form a structure similar to a capacitor, for example, see Figure 2The first coupling branch 220 includes a first connecting segment 221 and a first coupling segment 222, and the second coupling branch 230 includes a second connecting segment 231 and a second coupling segment 232. The first connecting segment 221 is perpendicular to the first radiator 410 and connected to the first radiator 410, and the second connecting segment 231 is perpendicular to the second radiator 420 and connected to the second radiator 420. The first connecting segment 221 is opposite to the second connecting segment 231, and the first coupling segment 222 is perpendicular to the first connecting segment 221 and connected to the first connecting segment 221. At the same time, the first coupling segment 222 faces The second connection segment 231 extends on one side; the second coupling segment 232 is arranged perpendicular to the second connection segment 231 and connected to the second connection segment 231, and at the same time, the second coupling segment 232 extends toward one side of the first connection segment 221, the first coupling segment 222 and the second coupling segment 232 are arranged at intervals, and the first coupling segment 222 and the second coupling segment 232 are opposite, at this time, the first coupling branch 220 and the second coupling branch 230 can be coupled through the gap between the first coupling segment 222 and the second coupling segment 232, so that the first coupling segment 222 and the second coupling segment 232 can be equivalent to a capacitor. Specifically, the capacitance value of the capacitor equivalent to the first coupling segment 222 and the second coupling segment 232 can be adjusted by adjusting the spacing and the facing area between the first coupling segment 222 and the second coupling segment 232.

[0037] It can be understood that the equivalent circuit structure of the first connecting branch 210, the first coupling branch 220 and the second coupling branch 230 can achieve "antenna signal disconnection for MHB and antenna signal path for LB".

[0038] In this embodiment, by making the first matching component 200 a matching circuit, or making the first matching component 200 a structure with the function of a matching circuit formed by connections between metal branches, the first matching component 200 can be in an open-circuit state for antenna signals in the frequency bands corresponding to L1, L2, L3, and L4, and in a path state for antenna signals in the frequency bands corresponding to L5 and L6.

[0039] Optionally, the second matching component 300 is a second matching circuit 340; or, the second matching component 300 includes a second connecting branch 310, a third coupling branch 320 and a fourth coupling branch 330, the second connecting branch 310 is bridged across the third break 470, the third coupling branch 320 is connected to the third radiator 430, the fourth coupling branch 330 is connected to the fourth radiator 440, and the third coupling branch 320 is coupled to the fourth coupling branch 330, and the length of the second connecting branch 310 is greater than the second distance value, wherein the second distance value is the distance between the third radiator 430 and the fourth radiator 440.

[0040] In some embodiments of the present application, the second matching component 300 may be a second matching circuit 340, and the second matching circuit 340 may be various matching circuits capable of realizing "antenna signal disconnection for MHB and antenna signal path for LB". For example, the second matching circuit 340 may be a matching circuit formed by connecting a capacitor and an inductor in parallel. For example, the second matching circuit 340 is a matching circuit formed by connecting a 6.8NH inductor and a 0.3P capacitor in parallel. For another example, the second matching circuit 340 is a matching circuit formed by connecting a 7NH inductor and a 0.35P capacitor in parallel.

[0041] In some other embodiments of the present application, the second matching component 300 may also be a structure having the function of a matching circuit formed by connections between metal branches. For example, the second matching component 300 includes a second connection branch 310, a third coupling branch 320, and a fourth coupling branch 330. Since the second connection branch 310 is connected across the third break 470, and the length of the second connection branch 310 is greater than the second distance value, the second connection branch 310 may be equivalent to an inductor connected across the third break 470. The inductance value of the inductor equivalent to the second connection branch 310 may be adjusted by adjusting the length of the second connection branch 310. Specifically, the length of the second connection branch 310 may be adjusted by bending or twisting the second connection branch 310. For example, see Figure 2, the second connection branch 310 can be in a triangular shape. In addition, the second connection branch 310 can also be in other shapes, such as an arc shape, a snake shape, etc. Correspondingly, since the third coupling branch 320 is connected to the first radiator 410, the fourth coupling branch 330 is connected to the second radiator 420, and the third coupling branch 320 is coupled to the fourth coupling branch 330, the third coupling branch 320 and the fourth coupling branch 330 can be equivalent to a capacitor across the third break 470. Specifically, the capacitance value of the capacitor equivalent to the third coupling branch 320 and the fourth coupling branch 330 can be adjusted by adjusting the spacing or coupling area between the third coupling branch 320 and the fourth coupling branch 330. In this way, the second connection branch 310, the third coupling branch 320 and the fourth coupling branch 330 can be equivalent to a capacitor and an inductor connected in parallel at the third break 470.

[0042] The third coupling branch 320 and the fourth coupling branch 330 may be coupled via a gap therebetween. Specifically, in order to achieve coupling between the third coupling branch 320 and the fourth coupling branch 330, the third coupling branch 320 and the fourth coupling branch 330 may form a structure similar to a capacitor, for example, see Figure 2The third coupling branch 320 includes a third connecting segment 321 and a third coupling segment 322. The fourth coupling branch 330 includes a fourth connecting segment 331 and a fourth coupling segment 332. The third connecting segment 321 is perpendicular to the first radiator 410 and connected to the first radiator 410. The fourth connecting segment 331 is perpendicular to the second radiator 420 and connected to the second radiator 420. The third connecting segment 321 is opposite to the fourth connecting segment 331. The third coupling segment 322 is perpendicular to the third connecting segment 321 and connected to the third connecting segment 321. At the same time, the third coupling segment 322 is disposed toward the The fourth coupling segment 332 is arranged perpendicular to the fourth connecting segment 331 and connected to the fourth connecting segment 331. Meanwhile, the fourth coupling segment 332 extends toward the third connecting segment 321. The third coupling segment 322 and the fourth coupling segment 332 are arranged at intervals, and the third coupling segment 322 and the fourth coupling segment 332 are opposite to each other. At this time, the third coupling branch 320 and the fourth coupling branch 330 can be coupled through the gap between the third coupling segment 322 and the fourth coupling segment 332, so that the third coupling segment 322 and the fourth coupling segment 332 can be equivalent to a capacitor. Specifically, the capacitance value of the capacitor equivalent to the third coupling segment 322 and the fourth coupling segment 332 can be adjusted by adjusting the spacing and the facing area between the third coupling segment 322 and the fourth coupling segment 332.

[0043] It can be understood that the equivalent circuit structure of the second connecting branch 310, the third coupling branch 320 and the fourth coupling branch 330 can achieve "antenna signal disconnection for MHB and antenna signal path for LB".

[0044] In this embodiment, by making the second matching component 300 a matching circuit, or making the second matching component 300 a structure with the function of a matching circuit formed by connections between metal branches, the second matching component 300 can be in an open-circuit state for antenna signals in the frequency bands corresponding to L1, L2, L3, and L4, and in a path state for antenna signals in the frequency bands corresponding to L5 and L6.

[0045] Optionally, the first matching component 200 is a first matching circuit 240, and the second matching component 300 is a second matching circuit 340; or,

[0046] The first matching component 200 includes a first connecting branch 210, a first coupling branch 220 and a second coupling branch 230, wherein the first connecting branch 210 is connected across the first break 450, the first coupling branch 220 is connected to the first radiator 410, the second coupling branch 230 is connected to the second radiator 420, and the first coupling branch 220 is coupled to the second coupling branch 230; the second matching component 300 includes a second connecting branch 310, a third coupling branch 320 and a fourth coupling branch 330, wherein the second connecting branch 310 is connected across the first break 450, the first coupling branch 220 is connected to the first radiator 410, the second coupling branch 230 is connected to the second radiator 420, and the first coupling branch 220 is coupled to the second coupling branch 230; Three breaks 470, the third coupling branch 320 is connected to the third radiator 430, the fourth coupling branch 330 is connected to the fourth radiator 440, and the third coupling branch 320 is coupled to the fourth coupling branch 330, the length of the first connection branch 210 is greater than the first distance value, wherein the first distance value is the distance between the first radiator 410 and the second radiator 420, and the length of the second connection branch 310 is greater than the second distance value, wherein the second distance value is the distance between the third radiator 430 and the fourth radiator 440.

[0047] In some embodiments of the present application, when the first matching component 200 is a first matching circuit 240 and the second matching component 300 is a second matching circuit 340, the first matching circuit 240 is a matching circuit formed by connecting a 10NH inductor and a 0.8P capacitor in parallel, and the second matching circuit 340 is a matching circuit formed by connecting a 6.8NH inductor and a 0.3P capacitor in parallel. In other embodiments of the present application, when the first matching component 200 is a first matching circuit 240 and the second matching component 300 is a second matching circuit 340, the first matching circuit 240 is a matching circuit formed by connecting a 11NH inductor and a 0.9P capacitor in parallel, and the second matching circuit 340 is a matching circuit formed by connecting a 7NH inductor and a 0.35P capacitor in parallel.

[0048] In this embodiment, by making the first matching component 200 and the second matching component 300 both matching circuits, or making the first matching component 200 and the second matching component 300 both structures with matching circuit functions formed by connections between metal branches, the first matching component 200 and the second matching component 300 can achieve an open-circuit state for antenna signals in the frequency bands corresponding to L1, L2, L3, and L4, and a path state for antenna signals in the frequency bands corresponding to L5 and L6.

[0049] Optionally, the operating frequency bands of the first radiator 410, the second radiator 420, the third radiator 430 and the fourth radiator 440 are respectively located in the first frequency band; the operating frequency band of the equivalent radiator formed by connecting the first radiator 410 and the second radiator 420 through the first matching component 200 is located in the second frequency band, and the operating frequency band of the equivalent radiator formed by connecting the third radiator 430 and the fourth radiator 440 through the second matching component 300 is located in the second frequency band, wherein the minimum frequency value in the first frequency band is greater than the maximum frequency value in the second frequency band;

[0050] The stopband of the first matching component 200 includes the first frequency band, and the passband of the first matching component 200 includes the second frequency band;

[0051] The stopband of the second matching component 300 includes the first frequency band, and the passband of the second matching component 300 includes the second frequency band.

[0052] The first frequency band may be MHB, and the second frequency band may be LB. Specifically, the first frequency band may be in the range of 1710 MHz to 2690 MHz, and the second frequency band may be in the range of 617 MHz to 960 MHz.

[0053] The stopband of the first matching component 200 may refer to: a signal frequency band attenuated by the first matching component 200. The passband of the first matching component 200 may refer to: a signal frequency band that can pass through the first matching component 200 without attenuation. Specifically, for the first matching component 200, the signal within the passband of the first matching component 200 can pass through the first matching component 200, and the amplitude of the signal within the passband of the first matching component 200 will not be attenuated when passing through the first matching component 200. Accordingly, the signal within the stopband of the first matching component 200 is filtered out or greatly weakened when passing through the first matching component 200, and finally weakened to a negligible level.

[0054] Accordingly, the stopband of the second matching component 300 may refer to: a signal frequency band attenuated by the second matching component 300. The passband of the second matching component 300 may refer to: a signal frequency band that can pass through the second matching component 300 without attenuation. Specifically, for the second matching component 300, the signal within the passband of the second matching component 300 can pass through the second matching component 300, and the amplitude of the signal within the passband of the second matching component 300 will not be attenuated when passing through the second matching component 300. Accordingly, the signal within the stopband of the second matching component 300 is filtered out or greatly weakened when passing through the second matching component 300, and finally weakened to a negligible level.

[0055] Since the stopband of the first matching component 200 includes the first frequency band, and the passband of the first matching component 200 includes the second frequency band, the first matching component 200 can allow the signal of the second frequency band to pass through, and at the same time, the first matching component 200 does not allow or blocks the signal of the first frequency band to pass through. Correspondingly, the stopband of the second matching component 300 includes the first frequency band, and the passband of the second matching component 300 includes the second frequency band, so the second matching component 300 can allow the signal of the second frequency band to pass through, and at the same time, the second matching component 300 does not allow or blocks the signal of the first frequency band to pass through.

[0056] In some embodiments of the present application, without adding adjustment devices such as switches, the operating frequency bands corresponding to each equivalent radiator can be configured as: L1: B3, L2: B1, L3: B40, L4: B41. In this way, the low-efficiency mode can be staggered, specifically: L1 (1 / 4λ≤L1≤1 / 2λ) loads the equivalent capacitance of the first break 450 to generate the fundamental mode of B3; L2 (1 / 4λ≤L2≤1 / 2λ) loads the first break 450 and the second break The equivalent capacitance of the first break 450 and the equivalent capacitance of the third break 470 generate the fundamental mode of B1; L3 (1 / 4λ≤L3≤1 / 2λ) loads the equivalent capacitance of the second break 460 and the third break 470 to generate the fundamental mode of B40; L4 (1 / 4λ≤L4≤1 / 2λ) loads the equivalent capacitance of the third break 470 to generate the fundamental mode of B41; wherein, since the working frequency bands corresponding to different equivalent radiators are different, the wavelengths λ of the working frequency bands corresponding to the various equivalent radiators are also different. The equivalent inductance of the first break 450 is often different from the equivalent inductance of the third break 470, because the wavelengths of the fundamental modes are different. In this embodiment, the first matching circuit 240 is a matching circuit formed by a 10NH inductor in parallel with a 0.8P capacitor, and the second matching circuit 340 is a matching circuit formed by a 0.3P capacitor in parallel with a 6.8NH inductor. Among them, the frequency range corresponding to B3 is: 1710MHz-1880 MHz; the frequency range corresponding to B1 is: 1920MHz-2170 MHz; the frequency range corresponding to B40 is: 2300MHz-2400MHz; the frequency range corresponding to B41 is: 2500MHz-2700 MHz.

[0057] In this embodiment, since the operating frequency bands of the first radiator 410 and the second radiator 420 are respectively located in the first frequency band, and the stopband of the first matching component 200 includes the first frequency band, the first matching component 200 can relatively isolate the antenna signals of the first frequency band in L1 and L2 to ensure that L1 and L2 can generate two independent fundamental modes; since the operating frequency band of the equivalent radiator formed by connecting the first radiator 410 and the second radiator 420 through the first matching component 200 is located in the second frequency band, and the passband of the first matching component 200 includes the second frequency band, the first matching component 200 can make the antenna signals of the second frequency band in L1 and L2 conduct with each other, so that L1 and L2 can be conducted through the first matching component 200 to be equivalent to a whole to form L5. Correspondingly, since the operating frequency bands of the third radiator 430 and the fourth radiator 440 are respectively located in the first frequency band, and the stop band of the second matching component 300 includes the first frequency band, the second matching component 300 can make the antenna signals of the first frequency band in L3 and L4 relatively isolated to ensure that L3 and L4 can generate two independent fundamental modes; since the operating frequency band of the equivalent radiator formed by connecting the third radiator 430 and the fourth radiator 440 through the second matching component 300 is located in the second frequency band, and the passband of the second matching component 300 includes the second frequency band, the second matching component 300 can make the antenna signals of the second frequency band in L3 and L4 conduct with each other, so that L3 and L4 can be conducted through the second matching component 300 to be equivalent to a whole to form L6, thereby realizing the coexistence of 6 fundamental modes.

[0058] Optionally, the feeding circuit 100 is electrically connected to the first radiator 410, the second frequency band includes a first sub-frequency band and a second sub-frequency band, and the maximum frequency value in the first sub-frequency band is less than the minimum frequency value in the second sub-frequency band;

[0059] The working frequency band of the equivalent radiator formed by connecting the first radiator 410 with the second radiator 420 through the first matching component 200 is in the first sub-frequency band;

[0060] The working frequency band of the equivalent radiator formed by connecting the third radiator 430 and the fourth radiator 440 through the second matching component 300 is located in the second sub-frequency band.

[0061] Specifically, based on the principle of maximum co-directional current, the mode frequency of L6 can be made slightly higher than the mode frequency of L5 to utilize the maximum co-directional current and obtain higher radiation efficiency; for example: L5: 700-800MHz, L6: 960-1000MHz, that is, the range of the first sub-band is 700-800MHz, and the range of the second sub-band is 960-1000MHz. In addition, if a tuning circuit 600 is added to the L6 mode, for example, the third radiator 430 or the fourth radiator 440 is connected to the tuning circuit 600, at this time, different capacitors can be loaded for different frequency bands, so that the two modes of L5 and L6 can be further brought closer, for example, L5: 700-800MHz, L6: 800-900MHz, so as to obtain a higher radiation efficiency for each frequency band.

[0062] In this implementation, by making the operating frequency band of L6 higher than the operating frequency band of L5, the radiation efficiency of L5 and L6 can be better improved by utilizing the maximum co-directional current.

[0063] Optionally, at least one of the first radiator 410 , the second radiator 420 , the third radiator 430 , and the fourth radiator 440 is connected to a tuning circuit 600 .

[0064] It can be understood that any radiator in the radiation component 400 can be connected to the tuning circuit 600, and it can be determined whether each radiator is connected to a corresponding tuning circuit 600 as needed. When a radiator needs to be connected to the tuning circuit 600, the radiator can be grounded through the tuning circuit 600. The tuning circuit 600 can be a tuning circuit 600 formed by connecting capacitors, inductors and other devices in parallel or in series.

[0065] Specifically, if a tuning circuit 600 is connected to a certain radiator, the antenna layout may not be performed in the manner of “: L1: B3, L2: B1, L3: B40, L4: B41” described above. Specifically, the reverse current may be adjusted by the tuning circuit 600 to cover the required frequency. For example, see Figure 3If the second radiator 420 is grounded through the tuning circuit 600, the reverse current can be adjusted through the tuning circuit 600 so that L1 covers B41, L2 covers B3, L2, the tuning circuit 600 and L3 cover B1 at the same time, wherein L2 can cover the first half of B1, L3 covers the second half of B1, and L4 covers B40, thereby expanding the bandwidth and optimizing the antenna performance. Among them, the two modes of L5 (1 / 4λ≤L2≤1 / 2λ) and L6 (1 / 4λ≤L2≤1 / 2λ) cover 700MHz-960MHz. It can be understood that the tuning circuit 600 can also be connected at L5 and L6 when necessary to optimize the antenna performance.

[0066] In this embodiment, by connecting at least one of the first radiator 410, the second radiator 420, the third radiator 430 and the fourth radiator 440 to the tuning circuit 600, since the tuning circuit 600 can adjust the reverse current, the performance of the antenna can be further optimized.

[0067] Optionally, the antenna further includes a third matching circuit 700 , and the feeding circuit 100 is electrically connected to the radiation component 400 via the third matching circuit 700 .

[0068] The third matching circuit 700 may be any matching circuit for impedance tuning of an antenna. Specifically, the third matching circuit 700 may be a matching circuit formed by connecting capacitors, inductors and other devices in parallel or in series.

[0069] See also Figure 5 , for Figure 1 , at this time, the third matching circuit 700 is not provided between the feeding circuit 100 and the radiating component 400, and each radiator in the radiating component 400 is not connected to the tuning circuit 600, so as to obtain Figure 5 The basic mode distribution of the illustrated embodiment. Figure 6 , is a simulation schematic diagram obtained by simulating the antenna after the third matching circuit 700 is set between the feeding circuit 100 and the radiating component 400. It can be seen that by setting the third matching circuit 700 between the feeding circuit 100 and the radiating component 400, it is beneficial to expand the bandwidth coverage of each mode in the antenna.

[0070] See also Figure 7 , is a simulation schematic diagram obtained after a third matching circuit 700 is provided between the feeding circuit 100 and the radiating component 400, and a tuning circuit 600 is provided in the radiator of the radiating component 400 as required, Figure 8 is a simulation diagram of each fundamental mode in this case. Figure 7 It can be seen that each fundamental mode of L1, L2, L3 and L4 has a higher-order mode, which can further increase the high-frequency coverage. Among them, the two fundamental modes of L1 and L5, with capacitors connected in series in the feeding path, can effectively excite the 1\2 resonant mode of L1 and L5 to further expand the bandwidth coverage of the fundamental mode coverage frequency band. Figure 8 It can be seen that the upper and lower hemispheres of each fundamental mode are basically aligned, so that each fundamental mode has a relatively uniform directionality.

[0071] In this implementation, the feeding circuit 100 is electrically connected to the radiation component 400 through the third matching circuit 700, which is helpful to expand the bandwidth coverage of each mode in the antenna.

[0072] Optionally, the antenna further includes a third matching component 500, the radiation component 400 further includes a fifth radiator 480 and a sixth radiator 490, the first radiator 410, the second radiator 420, the third radiator 430, the fourth radiator 440, the fifth radiator 480 and the sixth radiator 490 are arranged in sequence, a fourth break 411 is provided between the fourth radiator 440 and the fifth radiator 480, a fifth break 412 is provided between the fifth radiator 480 and the sixth radiator 490, and the third matching component 500 is connected across the fifth break 412;

[0073] The fifth radiator 480 and the sixth radiator 490 form three effective radiators, and the three effective radiators include: the fifth radiator 480, the sixth radiator 490, and an equivalent radiator formed by connecting the fifth radiator 480 and the sixth radiator 490 via the third matching component 500.

[0074] The shapes of the fifth radiator 480 and the sixth radiator 490 can be set according to needs or specific scenarios, for example, they can be strip-shaped or plate-shaped, or other common antenna radiator shapes. Figure 1 and Figure 2 In some embodiments of the present application, the first radiator 410, the second radiator 420, the third radiator 430, the fourth radiator 440, the fifth radiator 480 and the sixth radiator 490 are all strip radiators.

[0075] It can be understood that in the embodiment of the present application, in addition to adding the fifth radiator 480 and the sixth radiator 490 on the side of the fourth radiator 440, a radiator can be added on the side of the first radiator 410 away from the second radiator 420 to generate more fundamental modes. In addition, a radiator can be further added on the side of the sixth radiator 490 away from the fifth radiator 480 to further increase the number of fundamental modes. The number of the tuned radiators can be set as needed, and a matching component can be connected across the corresponding break at each interval to generate more additional fundamental modes.

[0076] The third matching component 500 being connected across the fifth break 412 means that one end of the third matching component 500 is connected to the fifth radiator 480 , and the other end of the third matching component 500 is connected to the sixth radiator 490 .

[0077] The third matching component 500 can generate different states for antenna signals of different frequency bands. For example, for antenna signals of frequency bands corresponding to L1, L2, L3, and L4, the first matching component 200 and the second matching component 300 can be in an open circuit state. The third matching component 500 can be similar to the structure of the first matching component 200. For example, the third matching component 500 is a fourth matching circuit. Alternatively, the third matching component 500 includes a third connecting branch, a fifth coupling branch, and a sixth coupling branch. The third connecting branch is connected across the fifth break 412. The fifth coupling branch is connected to the fifth radiator 480. The sixth coupling branch is connected to the sixth radiator 490. The fifth coupling branch is coupled to the sixth coupling branch. The length of the third connecting branch is greater than the third distance value. The third distance value is the distance between the fifth radiator 480 and the sixth radiator 490.

[0078] It is understandable that the above six radiators can generate nine fundamental modes, thereby achieving the coexistence of six fundamental modes. The nine fundamental modes can correspond to nine different operating frequency bands, so as to achieve coverage of more frequency bands.

[0079] In this embodiment, by further adding a third matching component 500, a fifth radiator 480 and a sixth radiator 490, it is helpful to further increase the number of fundamental modes that can be generated by the above-mentioned antenna, so as to further alleviate the problem of insufficient layout space of the existing terminal device antenna.

[0080] Some embodiments of the present application further provide an electronic device, which includes the antenna in the above embodiment.

[0081] The electronic device may be various terminal devices, for example, a mobile phone, a tablet computer, a smart watch, smart glasses, or other various wearable devices.

[0082] In this implementation manner, since the electronic device includes the antenna in the above embodiment, the electronic device can implement various processes of the above antenna and has the same beneficial effects, which will not be described again to avoid repetition.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An antenna, characterized in that: include: A feeding circuit, a first matching component, a second matching component and a radiating component, wherein the feeding circuit is electrically connected to the radiating component, the radiating component comprises a first radiator, a second radiator, a third radiator and a fourth radiator which are arranged in sequence and spaced apart from each other, a first break is provided between the first radiator and the second radiator, a second break is provided between the second radiator and the third radiator, and a third break is provided between the third radiator and the fourth radiator; the first matching component is bridged across the first break, and the second matching component is bridged across the third break; Among them, the first radiator, the second radiator, the third radiator and the fourth radiator constitute six effective radiators, among which different effective radiators have different operating frequency bands, and the six effective radiators include: the first radiator, the second radiator, the third radiator, the fourth radiator, an equivalent radiator formed by connecting the first radiator and the second radiator through the first matching component, and an equivalent radiator formed by connecting the third radiator and the fourth radiator through the second matching component.

2. The antenna according to claim 1, characterized in that The first matching component is a first matching circuit; or, the first matching component includes a first connecting branch, a first coupling branch and a second coupling branch, the first connecting branch is connected across the first break, the first coupling branch is connected to the first radiator, the second coupling branch is connected to the second radiator, and the first coupling branch is coupled to the second coupling branch, and the length of the first connecting branch is greater than a first distance value, wherein the first distance value is the distance between the first radiator and the second radiator.

3. The antenna according to claim 2, characterized in that: The second matching component is a second matching circuit; or, the second matching component includes a second connecting branch, a third coupling branch and a fourth coupling branch, the second connecting branch is connected across the third break, the third coupling branch is connected to the third radiator, the fourth coupling branch is connected to the fourth radiator, and the third coupling branch is coupled to the fourth coupling branch, and the length of the second connecting branch is greater than a second distance value, wherein the second distance value is the distance between the third radiator and the fourth radiator.

4. The antenna according to claim 1, characterized in that: The first matching component is a first matching circuit, and the second matching component is a second matching circuit; or, The first matching component includes a first connecting branch, a first coupling branch and a second coupling branch, the first connecting branch is connected across the first break, the first coupling branch is connected to the first radiator, the second coupling branch is connected to the second radiator, and the first coupling branch is coupled to the second coupling branch; the second matching component includes a second connecting branch, a third coupling branch and a fourth coupling branch, the second connecting branch is connected across the third break, the third coupling branch is connected to the third radiator, the fourth coupling branch is connected to the fourth radiator, and the third coupling branch is coupled to the fourth coupling branch, the length of the first connecting branch is greater than the first distance value, wherein the first distance value is the distance between the first radiator and the second radiator, and the length of the second connecting branch is greater than the second distance value, wherein the second distance value is the distance between the third radiator and the fourth radiator.

5. The antenna according to any one of claims 1 to 4, characterized in that: The operating frequency bands of the first radiator, the second radiator, the third radiator and the fourth radiator are respectively in the first frequency band; the operating frequency band of the equivalent radiator formed by connecting the first radiator and the second radiator through the first matching component is in the second frequency band, and the operating frequency band of the equivalent radiator formed by connecting the third radiator and the fourth radiator through the second matching component is in the second frequency band, wherein the minimum frequency value in the first frequency band is greater than the maximum frequency value in the second frequency band; The stopband of the first matching component includes the first frequency band, and the passband of the first matching component includes the second frequency band; The stop band of the second matching component includes the first frequency band, and the pass band of the second matching component includes the second frequency band.

6. The antenna according to claim 5, characterized in that The feeding circuit is electrically connected to the first radiator, the second frequency band includes a first sub-frequency band and a second sub-frequency band, and the maximum frequency value in the first sub-frequency band is less than the minimum frequency value in the second sub-frequency band; The working frequency band of the equivalent radiator formed by connecting the first radiator and the second radiator through the first matching component is in the first sub-frequency band; The operating frequency band of the equivalent radiator formed by connecting the third radiator with the fourth radiator through the second matching component is located in the second sub-frequency band.

7. The antenna according to claim 1, characterized in that: At least one of the first radiator, the second radiator, the third radiator, and the fourth radiator is connected to a tuning circuit.

8. The antenna according to claim 1, characterized in that: The antenna further includes a third matching circuit, and the feeding circuit is electrically connected to the radiation component through the third matching circuit.

9. The antenna according to claim 1, characterized in that: The antenna further includes a third matching component, the radiation component further includes a fifth radiator and a sixth radiator, the first radiator, the second radiator, the third radiator, the fourth radiator, the fifth radiator and the sixth radiator are arranged in sequence, a fourth break is provided between the fourth radiator and the fifth radiator, a fifth break is provided between the fifth radiator and the sixth radiator, and the third matching component is connected across the fifth break; The fifth radiator and the sixth radiator form three effective radiators, and the three effective radiators include: the fifth radiator, the sixth radiator, and an equivalent radiator formed by connecting the fifth radiator and the sixth radiator via the third matching component.

10. An electronic device, characterized in that: The invention comprises the antenna according to any one of claims 1 to 9.

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