An electronic device

Abstract

The application discloses an electronic device, comprising a first antenna radiator, a second antenna radiator and a third antenna radiator; a first coupling interval is arranged between the first end of the second antenna radiator and the third antenna radiator, and a second coupling interval is arranged between the second end of the second antenna radiator and the first antenna radiator; a first feeding point, a first grounding point and a second grounding point are sequentially arranged on the first antenna radiator, the first grounding point and the second grounding point are connected with an antenna ground plate, a first part of the first antenna radiator between the first grounding point and the second grounding point forms a first slot structure antenna, the distance from the first feeding point to the second coupling interval is smaller than the distance from the second grounding point to the second coupling interval; the first antenna radiator is used for working in a GPS frequency band; a second part of the first antenna radiator between the first grounding point and the second coupling interval, the second antenna radiator and the third antenna radiator are used for working in a medium-high frequency band.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0002] As smart electronic devices become more feature-rich, their batteries become larger, their motherboards become smaller, and the space available for antennas becomes smaller. This leads to a greater shortage of space for antenna layout, resulting in performance degradation caused by layout conflicts between antennas.

[0003] Current solutions primarily include adding side panels, using a common-aperture antenna design, and employing RF channel switching technology. However, side panels encroach on battery space, and flexible transmission lines suffer from high insertion loss and unstable connections. The common-aperture design, by de-isolating, easily leads to performance degradation, and coexisting frequency bands (such as GPS L5) experience significant fluctuations during cellular handover. RF channel switching not only increases costs but also makes it difficult to guarantee multi-standard coexistence, severely impacting the experience of dual-SIM and carrier aggregation. Therefore, current design solutions struggle to achieve high-performance coexistence of multiple frequency bands within a limited space. Summary of the Invention

[0004] This application provides an electronic device to solve the problem that the prior art cannot achieve high-performance coexistence of multiple frequency band antennas within a limited space.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide an electronic device, including: a first antenna radiator, a second antenna radiator, and a third antenna radiator;

[0007] The first end of the second antenna radiator has a first coupling interval with the third antenna radiator, and the second end of the second antenna radiator has a second coupling interval with the first antenna radiator;

[0008] The first antenna radiator is provided with a first feed point, a first ground point and a second ground point in sequence. Both the first ground point and the second ground point are connected to the antenna ground plane. The first part of the first antenna radiator between the first ground point and the second ground point forms a first slot structure antenna. The distance from the first feed point to the second coupling interval is less than the distance from the second ground point to the second coupling interval.

[0009] The first antenna radiator is designed to operate in the GPS frequency band.

[0010] The second portion of the first antenna radiator between the first grounding point and the second coupling interval, the second antenna radiator, and the third antenna radiator are used to operate in the mid-to-high frequency band.

[0011] Thus, in the above-described scheme of this application, by setting a first coupling interval between the first end of the second antenna radiator and the third antenna radiator, and a second coupling interval between the second end of the second antenna radiator and the first antenna radiator, and by providing a first feed point, a first ground point, and a second ground point on the first antenna radiator, both the first and second ground points being connected to the antenna ground plane, and the first portion of the radiator on the first antenna radiator forming a first slot structure antenna from the first ground point to the second ground point, the distance from the first feed point to the second coupling interval being less than the distance from the second ground point to the second coupling interval; in the mid-to-high frequency band, by utilizing the second portion of the radiator, the second antenna radiator, and the third antenna radiator, in conjunction with the first and second coupling intervals, a multi-segment radiation structure is formed, improving the radiation efficiency of the mid-to-high frequency band; in the GPS frequency band, by utilizing the structure of the first antenna radiator to form a radiation mode, the characteristics of the GPS frequency band are optimized; at the same time, by setting the first feed point on the first antenna radiator, the combined feed design of the GPS frequency band and the mid-to-high frequency band is cleverly realized, taking into account the high-performance coexistence of multiple frequency bands within a limited space. Attached Figure Description

[0012] Figure 1 One of the schematic diagrams illustrating an electronic device according to an embodiment of this application;

[0013] Figure 2 A second schematic diagram illustrating an electronic device according to an embodiment of this application;

[0014] Figure 3 A schematic diagram illustrating the current operation of the electronic device in various frequency bands according to embodiments of this application;

[0015] Figure 4 A third schematic diagram illustrating an electronic device according to an embodiment of this application;

[0016] Figure 5 Fourth schematic diagram illustrating an electronic device according to an embodiment of this application;

[0017] Figure 6 One of the circuit structure schematic diagrams of the first tuning circuit in an embodiment of this application;

[0018] Figure 7 The S11 curve diagram shows how the electronic device in this application realizes cellular MHB switching of different frequency bands through the first adjustment module;

[0019] Figure 8This diagram illustrates the overall efficiency curve of the electronic device in this application, which achieves cellular MHB switching between different frequency bands through the first adjustment module.

[0020] Figure 9 Fifth schematic diagram illustrating an electronic device according to an embodiment of this application;

[0021] Figure 10 This is a schematic diagram of the initial impedance circle of the antenna of the electronic device in the B3 cellular state of this application without the first feeder matching circuit.

[0022] Figure 11 A schematic diagram illustrating the first feeder matching circuit according to an embodiment of this application;

[0023] Figure 12 A second schematic diagram illustrating the circuit structure of the first tuning circuit according to an embodiment of this application;

[0024] Figure 13 This application illustrates an embodiment of the invention. Figure 12 A schematic diagram of the current distribution in the corresponding electronic device;

[0025] Figure 14 This application illustrates an embodiment of the invention. Figure 12 The corresponding antenna S11 curve for the electronic device;

[0026] Figure 15 Sixth schematic diagram illustrating an electronic device according to an embodiment of this application;

[0027] Figure 16 This application illustrates an embodiment of the invention. Figure 15 S11 curves of the corresponding electronic devices in the LB, MHB and GPS L5 bands;

[0028] Figure 17 This application illustrates an embodiment of the invention. Figure 15 The overall efficiency curves of the corresponding electronic devices in the LB, MHB and GPS L5 bands;

[0029] Figure 18 A schematic diagram illustrating the second feeder matching circuit according to an embodiment of this application;

[0030] Figure 19 Schematic diagram seven illustrating an electronic device according to an embodiment of this application;

[0031] Figure 20 Eighth schematic diagram illustrating an electronic device according to an embodiment of this application;

[0032] Figure 21 Schematic diagram nine illustrating an electronic device according to an embodiment of this application;

[0033] Figure 22 This application illustrates an embodiment of the invention. Figure 1 A schematic diagram of the corresponding electronic device without the first slot antenna structure;

[0034] Figure 23 This application illustrates an embodiment of the invention. Figure 1 Corresponding electronic devices and Figure 22 Schematic diagrams of the initial input impedance of the corresponding electronic devices in state B3;

[0035] Figure 24 This application illustrates an embodiment of the invention. Figure 1 Corresponding electronic devices and Figure 22 A comparative diagram of the efficiency curves of the corresponding electronic devices in state B3. Detailed Implementation

[0036] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0037] like Figure 1 As shown, this application provides an electronic device, including: a first antenna radiator A0, a second antenna radiator A2, and a third antenna radiator A3;

[0038] The first end A21 of the second antenna radiator A2 and the third antenna radiator A3 have a first coupling interval SL1, and the second end A22 of the second antenna radiator A2 and the first antenna radiator A0 have a second coupling interval SL2.

[0039] The first antenna radiator A0 is provided with a first feed point F1, a first ground point G1 and a second ground point G2 in sequence. The first ground point G1 and the second ground point G2 are both connected to the antenna floor G0. The first part of the radiator A4 on the first antenna radiator A0 from the first ground point G1 to the second ground point G2 forms a first slot structure antenna. The distance from the first feed point F1 to the second coupling interval SL2 is less than the distance from the second ground point G2 to the second coupling interval SL2.

[0040] The first antenna radiator A0 is used to operate in the Global Positioning System (GPS) frequency band;

[0041] The second portion of the first antenna radiator A0, between the first grounding point G1 and the second coupling interval SL2, the second antenna radiator A2, and the third antenna radiator A3 are used to operate in the mid-to-high frequency band.

[0042] In this embodiment, a first coupling interval SL1 is provided between the first end A21 of the second antenna radiator A2 and the third antenna radiator A3, and a second coupling interval SL2 is provided between the second end A22 of the second antenna radiator A2 and the first antenna radiator A0. A first feed point F1, a first ground point G1, and a second ground point G2 are provided on the first antenna radiator A0. Both the first ground point G1 and the second ground point G2 are connected to the antenna ground plane G0. A first portion of the radiator A4 on the first antenna radiator A0, from the first ground point G1 to the second ground point G2, forms a first slot structure antenna. The distance from the first feed point F1 to the second coupling point G2 is... The distance of the interval SL2 is less than the distance from the second grounding point G2 to the second coupling interval SL2. In the mid-to-high frequency band, the second part radiator A1, the second antenna radiator A2 and the third antenna radiator A3, together with the first coupling interval SL1 and the second coupling interval SL2, form a multi-segment radiation structure, which improves the radiation efficiency of the mid-to-high frequency band. In the GPS frequency band, the structure of the first antenna radiator A0 is used to form a radiation mode, which optimizes the characteristics of the GPS frequency band. At the same time, by setting the first feed point F1 on the first antenna radiator A0, the combined feed design of the GPS frequency band and the mid-to-high frequency band is cleverly realized, which takes into account the high performance coexistence of multiple frequency bands in a limited space.

[0043] For example, the first antenna radiator A0 can operate in both the GPS band and the cellular MHB band. The second part radiator A1 constitutes the main operating mode of GPS L5. The first part radiator A4 forms the first slot structure antenna, which excites the slot mode through magnetic field coupling as the auxiliary mode of GPS L5. The second part radiator A1, the second antenna radiator A2, and the third antenna radiator A3, together with the first coupling interval SL1 and the second coupling interval SL2, form a multi-segment radiation structure for radiating cellular MHB band signals.

[0044] In one specific implementation, the first grounding point G1 is directly connected to the antenna floor G0, meaning the first grounding point G1 is designed as a direct ground loop. This ground loop is crucial for ensuring mode magnetic field coupling and requires a certain inductance. The inductance can be adjusted based on actual needs and the impact on the mode from the first grounding point G1 to the first coupling interval SL1. Within a certain range, a larger equivalent inductance results in stronger magnetic field coupling, stronger slot mode excitation, and a lower mode offset from the first grounding point G1 to the first coupling interval SL1. The change in inductance here has a greater impact on slot mode coupling than on the frequency offset of the main mode. Moreover, the magnetic field coupling does not need to reach its strongest state here, so it is only necessary to control the equivalent inductance to be relatively small to appropriately strengthen the slot mode excitation. The impact on the frequency offset of the main mode remains within acceptable limits. In one specific implementation, the width and thickness of the ground loop at the first grounding point G1 can both be designed to be approximately 1 mm.

[0045] As one specific implementation method Figure 1 and Figure 2 The primary ground G0 in the diagram is the antenna floor G0.

[0046] As a specific implementation, the first antenna radiator A0, the second antenna radiator A2, and the third antenna radiator A3 can be disposed on the frame of the electronic device, or formed by the frame of the electronic device, such as... Figure 1 As shown, the electronic device includes a battery compartment, which can be considered as the antenna floor G0. Both the first grounding point G1 and the second grounding point G2 are connected to the antenna floor G0 via a metal retaining wall A6 on the right side of the battery compartment. The second portion radiator A1 of the first antenna radiator A0, the second antenna radiator A2, and the third antenna radiator A3 can all be located on the same side of the frame, such as the bottom side of the electronic device frame. The first portion radiator A4 of the first antenna radiator A0 can be located on the other side of the frame, such as the right side of the electronic device frame.

[0047] As a specific implementation: the first antenna radiator A0, the second antenna radiator A2 and the third antenna radiator A3 can be formed by opening a slit on each side of the bottom frame of the electronic device near the USB interface component (i.e. forming a first coupling interval SL1 and a second coupling interval SL2).

[0048] Optionally, such as Figure 1 and Figure 2 As shown, it also includes: a first coupling reinforcement structure A51 and / or a second coupling reinforcement structure A52;

[0049] The first coupling reinforcement structure A51 is disposed opposite to the second coupling interval SL2, and the second coupling reinforcement structure A52 is disposed opposite to the first coupling interval SL1.

[0050] In this embodiment, the first coupling reinforcement structure A51 and the second coupling reinforcement structure A52 can achieve stronger excitation of energy on the second antenna radiator A2 and the third antenna radiator A3.

[0051] For example, such as Figure 1-3 As shown, for the mid-band (MB) mode, the main mode of the MB is the slot common mode (third current I3) from the first ground point G1 to the third ground point G3 on the third antenna radiator (the third ground point G3 is connected to the antenna ground plane G0). The auxiliary mode is the slot differential mode (fourth current I51 and fifth current I52) of the corresponding path. The main structure of the above slot common mode is coupled from the first ground point G1 to the first coupling interval SL1 through the first coupling reinforcement structure A51. The length of this segment is itself longer than a quarter wavelength of the MB, but the first coupling reinforcement structure A51 is used to perform series loading in the strong magnetic field area, which can shorten the electrical length of this segment. At the same time, the parallel LC (equivalent inductance for MB) in the matching circuit of the first feed point F1 can also shorten the electrical length of this segment, so that the electrical length of this segment is about a quarter wavelength of the MB. Then, it is coupled to the third ground point G3 through the first coupling interval SL1, which can effectively excite the slot common and differential modes of the MB. Furthermore, the distance between the first coupling interval SL1 and the second coupling interval SL2 can be controlled between one-eighth and one-quarter of the wavelength of the MB. The electrical length between the first grounding point G1 and the second coupling interval SL2 is also between one-eighth and one-quarter of the wavelength of the MB. To ensure that the differential mode of the MB has sufficiently good radiation performance, the electrical length between the first coupling interval SL1 and the third grounding point G3 should be approximately one-quarter of the wavelength of the MB. The differential mode is also adjusted to be slightly higher than the operating frequency band to prevent differential mode pits from entering the band.

[0052] For example, such as Figure 1-3 As shown, for the high-band (HB) mode, the position of the first feed point F1 needs to be between one-eighth and one-quarter wavelengths of HB from the second coupling interval SL2. After coupling through the first coupling enhancement structure A51, the first feed point F1 to the first coupling interval SL1 forms an electrical length dimension of about one-quarter wavelength of HB. At this time, the distance between the first coupling interval SL1 and the second coupling interval SL2 is also controlled between one-eighth and one-quarter wavelengths of HB, and the differential mode is adjusted to be slightly higher than the operating frequency band to avoid differential mode pits entering the band.

[0053] For example, such as Figure 1-3As shown, for GPS L5, the equivalent coupling capacitance generated by the same first coupling enhancement structure A51 in the GPS L5 frequency band is much smaller than that in the MB frequency band. Therefore, the energy of GPS L5 cannot be effectively coupled to the first coupling interval SL1 and the second coupling interval SL2. Its radiation body is from the first grounding point G1 to the second coupling interval SL2. The electrical length is lengthened by the small amount of capacitive coupling of the first coupling enhancement structure A51 in the electric field strong region. Then, the electrical length is further lengthened by the parallel LC (equivalent capacitance for L5) of the first feed point F1, so that the electrical length of this segment is about one-quarter wavelength of L5.

[0054] For example, such as Figure 3 The diagram shows the operating current of the above electronic device in various frequency bands. For the GPSL5 frequency band, the main operating mode of GPSL5 is the loaded quarter-wavelength inverted-F antenna (IFA) mode formed by the first grounding point G1 to the second coupling interval SL2. The auxiliary mode of GPSL5 is the slot mode half-wavelength mode formed by the first current I11 and the second current I12 between the first grounding point G1 and the second grounding point G2. This slot mode needs to be adjusted to a frequency band slightly higher than that of GPSL5. This slot mode offers two advantages for GPS L5: first, it improves the aperture radiation efficiency of GPS L5; second, when the length from the first grounding point G1 to the second coupling interval SL2 is insufficient, the introduction of this slot mode can improve the impedance position of GPS L5, significantly reduce the matching device losses of GPS L5, and increase the impedance bandwidth of L5. For example, if the length from the first grounding point G1 to the second coupling interval SL2 is less than a quarter wavelength of L5, the electrical length of this size needs to be adjusted to a quarter wavelength of GPS L5 through the loading of the first coupling reinforcement structure A51 and power supply matching. The slot mode corresponding to the first slot structure is an auxiliary mode of GPS L5 generated by magnetic field coupling. This mode will follow the efficiency dip and needs to be adjusted to a frequency position slightly higher than L5 to improve the impedance position of GPS L5, significantly reduce the matching device losses of GPS L5, and increase the impedance bandwidth of GPS L5.

[0055] For example, such as Figure 3As shown, for the cellular MHB band, the MB band operating mode includes a third current I3 in the double-slot three-segment common mode, which is coupled from the first ground point G1 through the second part of the first antenna radiator A0 via the second coupling interval SL2 to the second antenna radiator A2, and then through the first coupling interval SL1 to the third antenna radiator A3, grounded at the third ground point G3. It also includes a slot differential mode composed of the fourth current I51 and the fifth current I52. The frequency of the differential mode is slightly higher than the MB operating frequency to prevent differential mode pits from entering the in-band. The High Band (HB) band operating mode includes a sixth current I4 in the double-slot three-segment common mode, which is coupled from the first feed point F1 through the first antenna radiator A0 via the second coupling interval SL2 to the second antenna radiator A2, and then through the first coupling interval SL1 to the third antenna radiator A3, grounded at the second ground point G2. It also includes a slot differential mode (a reverse current mode with the same path as the sixth current I4). The frequency of the differential mode is slightly higher than the HB operating frequency to prevent differential mode pits from entering the in-band. Therefore, it can be seen that the MHB band of the cell excites a strong current in the three radiators (the second part of the first antenna radiator A0, the second antenna radiator A2, and the third antenna radiator A3), which increases the antenna aperture and can obtain better radiation efficiency.

[0056] In addition, such as Figure 3 As shown, the first slot structure antenna will excite a wavelength-doubled mode consisting of the seventh current I21, the eighth current I22, and the ninth current I23 within the MHB range. In this mode, there is a first current reversal point between the seventh current I21 and the eighth current I22 with opposite current directions, and there is a second current reversal point between the eighth current I22 and the ninth current I23 with opposite current directions. This mode may have an adverse effect on the cellular MHB, and the two current reversal points can be used as loading bits for adjustment.

[0057] like Figure 4 As shown, optionally, it also includes: a first coupling structure A7 and / or a second coupling structure A8;

[0058] The first coupling structure A7 is positioned directly opposite the first region K1 of the first radiator A4;

[0059] The second coupling structure A8 is positioned directly opposite the second region K2 of the first radiator A4;

[0060] The first region and the second region are the regions where the current reversal point is formed on the first radiator A4 when the first radiator A4 is operating in the full wavelength mode of the mid-to-high frequency band.

[0061] In this embodiment, the current reversal point is the node where the current directions are opposite between two adjacent currents among the multiple currents formed on the first radiator A4. To avoid the adverse effects of the one-wavelength mode excited by the first slot structure antenna within the MHB range, the electric field strength is adjusted at the current reversal point of this mode through a coupling structure, such as... Figure 4 As shown, the first coupling structure A7 and the second coupling structure A8 are distributed ground inductors, which can also be understood as metal structures of a certain length connecting the first radiator A4 and the antenna ground G0. The first coupling structure A7 is positioned opposite the first region K1 of the first current reversal point of the first radiator A4; the second coupling structure A8 is positioned opposite the second region K2 of the second current reversal point of the first radiator A4. Through the first coupling structure A7 and the second coupling structure A8, the aforementioned unfavorable one-wavelength mode can be adjusted to a position higher than the N41 frequency band. Of course, while adjusting this one-wavelength mode, the resonant frequency of the half-wavelength GPS L5 auxiliary mode will also change. At this time, it is necessary to adjust the return position of the second grounding point G2 (for example, shorten the distance between the second grounding point G2 and the first grounding point G1) or adjust the half-wavelength mode back by adjusting the resonant frequency of the GPS L5 mode.

[0062] like Figure 5 As shown, optionally, it also includes: a first coupling structure A12 and / or a second coupling structure A13;

[0063] The first coupling structure A12 is positioned directly opposite the first region K1 of the first radiator A4;

[0064] The second coupling structure A13 is positioned directly opposite the second region K2 of the first radiator A4;

[0065] The first region and the second region are the regions where the current reversal point is located on the first part of the radiator A4 when the first part of the radiator A4 is operating in the full wavelength mode of the mid-to-high frequency band. The current reversal point is a node in which the current directions of two adjacent currents are opposite among the multiple currents formed on the first part of the radiator A4.

[0066] In this embodiment of the invention, to avoid the adverse effects of the one-wavelength mode excited by the first slot structure antenna within the MHB range, the coupling structure is used to adjust the load at the current reversal point (i.e., the electric field strength point) of this mode. The first coupling structure A12 and the second coupling structure A13 are distributed loading capacitors, which can also be understood as floating metal located between the first antenna radiator A0 and the antenna ground G0. Through the first coupling structure A12 and the second coupling structure A13, the aforementioned unfavorable one-wavelength mode can be adjusted to a position below the B3 frequency band or between the frequency band N1 and the frequency band B40. Of course, while adjusting the one-wavelength mode, the resonant frequency of the half-wavelength GPS L5 auxiliary mode will also change. At this time, it is necessary to adjust the return position of the second grounding point G2 (for example, shorten the distance between the second grounding point G2 and the first grounding point G1) or adjust the half-wavelength mode back by adjusting the resonant frequency of the GPS L5 mode.

[0067] Optionally, such as Figure 1-3 As shown, it also includes: a first tuning circuit M1;

[0068] The first tuning circuit M1 is connected to the first connection point P1 on the first antenna radiator A0, and the first connection point P1 is located between the first grounding point G1 and the second grounding point G2.

[0069] In this embodiment, the first tuning circuit M1 is used to adjust the resonant frequency of GPS L5 mode and the high-order mode resonant frequency of the first slot structure antenna, so as to avoid the high-order mode from having a significant impact on the cellular antenna.

[0070] As a specific implementation, when the first trench structure formed by the first ground point G1 and the first ground point G1 excites a wavelength-doubled mode within the MHB range, the coupling structure may not be provided in the first region and / or the second region corresponding to the current reversal point; adjustment can be achieved solely through the loading bit at the first tuning circuit M1. For example, such as Figure 6 As shown, the first tuning circuit M1 is designed as a tuning circuit that prevents the GPS L5 band from exhibiting capacitance to the HB band. Specifically, the first tuning circuit includes a first capacitor C1 and a first inductor L1 connected in parallel. This allows for the loading of a one-wavelength mode between the N1 and B40 bands while maintaining the half-wavelength L5 auxiliary mode essentially unchanged, thus eliminating its impact on the MHB band. As a specific implementation, the first inductor L1 can be an 8.2nH inductor, and the first capacitor C1 can be a 2pF capacitor.

[0071] Optionally, the electrical length of the radiator on the second radiator A1 from the first feed point F1 to the first ground point G1 satisfy: ;

[0072] And / or,

[0073] Part 1: Electrical Length of Radiation Body A4 satisfy: ;

[0074] in, It is the wavelength corresponding to the resonant frequency of the first sub-band of the GPS frequency band where the first antenna radiator operates.

[0075] In this embodiment of the application, for GPS L5 mode, the distance between the first power supply point F1 and the first ground point G1 is kept greater than or equal to one-tenth of the electrical length of the GPS L5 frequency band, so as to ensure that the initial impedance of the L5 frequency band does not deviate too much to the edge of the second quadrant; the distance between the second ground point G2 and the first ground point G1 is kept at about half the electrical length of the GPS L5.

[0076] Optionally, the first end P2 of the third antenna radiator A3 is connected to the first adjustment module 100, or the first end P2 of the third antenna radiator A3 is grounded, wherein the first end P2 of the third antenna radiator A3 is the end close to the first coupling interval SL1.

[0077] The first adjustment module 100 can be switched between multiple states. When the second radiator A1, the second antenna radiator A2, and the third antenna radiator A3 are operating in different sub-bands of the mid-to-high frequency band, the first adjustment module 100 is in different states.

[0078] In this embodiment of the application, the first end P2 of the third antenna radiator A3 can be connected to the first adjustment module 100, and the first end P2 of the third antenna radiator A3 can also be directly grounded. Figure 1 As shown, when the first end P2 of the third antenna radiator A3 is connected to the first adjustment module 100, the first adjustment module 100 is used to switch different operating frequency bands of MHB, and can also excite the differential mode of the MB band and the differential mode of HB; as Figure 9 As shown, when the first end P2 of the third antenna radiator A3 is directly grounded through the third grounding point G3, the working mode of GPS L5 is unaffected. The MB mode only has the common mode of the slot, while the HB mode still has the common mode and differential mode of the slot. The efficiency of MB will be slightly affected, but the performance of HB will be improved due to the reduction of switching losses.

[0079] A first adjustment module 100 is provided at the first end P2 of the third antenna radiator A3. This can mean that the first adjustment module 100 is located at the first end P2 of the third antenna radiator A3, that is, at the end of the third antenna radiator A3 near the first coupling interval SL1. Alternatively, it can mean that the first adjustment module 100 is located at a distance from the first end P2 of the third antenna radiator A3, that is, at a distance from the third antenna radiator A3 near the first coupling interval SL1. Here, "a distance" is less than the electrical length of the third antenna radiator A3, and this application embodiment is not limited thereto. Similarly, grounding the first end P2 of the third antenna radiator A3 can mean that the third grounding point G3 is located at the first end P2 of the third antenna radiator A3, that is, at the end of the third antenna radiator A3 near the first coupling interval SL1. This application embodiment is not limited thereto.

[0080] For example, the first adjustment module 100 can also excite the differential mode of the MB band and the differential mode of the HB band. For the MB mode, the differential mode can be effectively excited when the first adjustment module 100 is disconnected or when a large inductor is applied. For the HB mode, the differential mode can be effectively excited when the first adjustment module 100 is loaded with a small inductor, a 0-ohm capacitor, or a large capacitor, and the electrical length of the third antenna radiator A3 is adjusted to about a quarter wavelength of HB.

[0081] like Figure 7 As shown, with the first adjustment module 100 provided, the reflection coefficient (S11) curves of the cellular MHB switching to different frequency bands (B3, B39, B40, N1, N41) are obtained through the first adjustment module 100. It can be seen that the cellular can obtain a better S11 curve for each frequency band, and the S11 curves of GPS L5 are basically in a state of overlap. Figure 8 The diagram shows the overall efficiency curves when the first adjustment module 100 is provided, enabling cellular MHB switching to different frequency bands (B3, B39, B40, N1, N41), and the overall efficiency curve when the first adjustment module 100 is not provided (the first end P2 of the third antenna radiator A3 is grounded). It can be seen that the peak overall efficiency of the cellular frequency bands in this embodiment can reach approximately -2dB, and the peak overall efficiency of GPS L5 can reach approximately -5.5dB and is very stable.

[0082] Optionally, it also includes: combiner H1 and first feeder matching circuit 10;

[0083] The input terminal 110 of the combiner H1 is connected to at least one first feed source F01 and at least one second feed source F02. The output terminal 120 of the combiner H1 is connected to the first terminal 101 of the first feed matching circuit 10. The first feed point F1 is connected to the second terminal 102 of the first feed matching circuit 10. The third terminal 103 of the first feed matching circuit 10 is grounded.

[0084] The first feed source F01 is used to feed in signals in the GPS frequency band, and the second feed source F02 is used to feed in signals in the mid-to-high frequency band;

[0085] The first feeder matching circuit 10 is used to match the input impedance of the first feed point F1 in the GPS frequency band and the input impedance of the first feed point F1 in the mid-to-high frequency band.

[0086] In this embodiment, to match the input impedance of the first feed point F1 in the GPS band with its input impedance in the mid-to-high frequency band, adjustment is required via the first feed matching circuit 10. As a specific implementation, the first feed source F01 is a feed source in the GPS L5 band, and the second feed source F02 is a feed source in the B3 band. Figure 10 The figure shows the initial impedance circle diagram of the antenna in the B3 state of the cell without the first feed matching circuit 10. The area between Mark 1 and Mark 2 is the GPS L5 operating frequency band, and the area between Mark 3 and Mark 4 is the B3 operating frequency band. Obviously, if the impedance is to be matched, the first feed matching circuit 10 needs to be added.

[0087] Optionally, the first feeder matching circuit 10 includes a filter unit 11, at least one first loading element 12, and at least one second loading element 13;

[0088] The output terminal 120 of the combiner H1 is connected to the first feed point F1 through at least one second loading element 13. The first feed point F1 is grounded through the filter unit 11 and also through the first loading element 12.

[0089] The filtering unit 11 is capacitive for the GPS frequency band and inductive for a specific sub-band in the mid-to-high frequency band.

[0090] In this embodiment of the invention, the first loading element 12 may be capacitive or inductive, and different first loading elements 12 may have different electrical characteristics (including capacitive or inductive characteristics).

[0091] As a specific implementation method, such as Figure 11As shown, the first loading element 12 includes a second inductor element L2, the second loading element 13 includes a second capacitor element C2, and the filtering unit 11 includes a third inductor element L3 and a third capacitor element C3 (for example, the third capacitor element C3 can be a capacitor of about 0.8pF, and the third inductor element L3 can be an inductor of about 30nH). The filtering unit 11 acts as a capacitor for the GPS L5 band and an inductor for the B3 band. Through the filtering unit 11, the impedance of the GPS L5 band and the B3 band can be adjusted simultaneously. Figure 10 The circuit first enters the first quadrant of the circular diagram. Then, the impedance position is finely adjusted by the first loading element 12. Finally, the second loading element 13 is used to match the input impedance of the first feed point F1 in the GPS frequency band with the input impedance of the first feed point F1 in the mid-to-high frequency band to 50 ohms. It should be noted that the first feed matching circuit 10 does not have a switch for tuning; otherwise, the impedance of GPS L5 will be affected during the tuning process, causing significant fluctuations in GPS L5.

[0092] Alternatively, one embodiment, such as Figure 12 As shown, the first tuning circuit M1 includes a resonant unit 21 and a third loading element 22;

[0093] The first tuning circuit M1 exhibits high impedance in the first specific sub-frequency band of GPS, low impedance in the second specific sub-frequency band of GPS, and inductive in the mid-to-high frequency band.

[0094] In the embodiments of this application, Figure 1 or Figure 2 Based on the illustrated electronic device, the structure of the first tuning circuit M1 is defined. The first tuning circuit M1 exhibits different impedances in the first specific sub-frequency band, the second specific sub-frequency band, and the mid-to-high frequency band of GPS. Specifically, in the GPS L5 frequency band, the first tuning circuit M1 can be equivalently disconnected, or have a large inductor or a small capacitor, making the first tuning circuit M1 exhibit high impedance and ensuring that the auxiliary slot mode of L5 remains basically unchanged. In the GPS L1 frequency band, the first tuning circuit M1 can be equivalently short-circuited, or have a large capacitor or a small inductor grounded, making the first tuning circuit M1 exhibit low impedance and additionally exciting the slot half-wavelength mode from the first ground point G1 to the first tuning circuit M1 as the auxiliary mode of GPS L1. In the MHB frequency band, the first tuning circuit M1 can be equivalently small inductor, loading the double-wavelength mode from the first ground point G1 to the second ground point G2 at a higher frequency position than the N41 frequency band, eliminating its influence on MHB.

[0095] As a specific implementation method, such as Figure 12As shown, the resonant unit 21 is composed of a fourth capacitor element C4 and a fifth inductor element L5 connected in parallel. The third loading element 22 includes the fourth inductor element L4. Specifically, the fourth inductor element L4 can be a 7nH inductor, the fourth capacitor element C4 can be a 3.3pF capacitor, and the fifth inductor element L5 can be a 6nH inductor.

[0096] like Figure 13 The diagram shows the current distribution of the electronic device corresponding to this embodiment. At this time, the working mode of the GPS L5 band is mainly the quarter-IFA mode from the first ground point G1 to the second coupling interval SL2, which generates the tenth current I13. With the assistance of the slot half-wavelength mode formed from the first ground point G1 to the second ground point G2, the first current I11 and the second current I12 are generated. The working mode of the GPS L1 band is mainly the quarter-IFA mode from the first ground point G1 to the second coupling interval SL2, which generates the tenth current I13. With the assistance of the slot half-wavelength mode formed from the first ground point G1 to the first tuning circuit M1, the eleventh current I61 and the twelfth current I62 are generated.

[0097] like Figure 14 The diagram shows the antenna S11 curve for this embodiment (without the first adjustment module 100), which can simultaneously achieve coexistence of the GPS L5 band, GPS L1 band, and cellular MHB band. Dashed box A represents the GPS L5 operating band, dashed box B represents the GPS L1 operating band, and dashed box C represents the MHB operating band. It can be seen that there are good reflection coefficients within each operating frequency band. Furthermore, if the first adjustment module 100 is added to the third antenna radiator A3, the MHB can obtain even better reflection coefficients in each frequency band.

[0098] Optionally, it further includes: a third coupling structure A9, which is disposed opposite to the third antenna radiator A3, and the third coupling structure A9 and the third antenna radiator A3 have a third coupling interval SL3;

[0099] The third antenna radiator A3 is provided with a second feed point F2, which is located close to the first coupling interval SL1;

[0100] The third antenna radiator A3 is also used to operate in the low-frequency band.

[0101] In the embodiments of this application, such as Figure 15As shown, a cellular low-band (LB) antenna is added to the third antenna radiator A3, and a second feed point F2 for the low-frequency band is also provided on the third antenna radiator A3, so that the third antenna radiator A3 can also operate in the low-frequency band. As a specific implementation, the first end of the third antenna radiator A3 is provided with the second feed point F2, which can also be understood as the second feed point F2 being located at the first end of the third antenna radiator A3, that is, the second feed point F2 is provided at the end of the third antenna radiator A3 near the first coupling interval SL1. This embodiment of the application is not limited to this.

[0102] In this embodiment, if the third antenna radiator A3 is also used to operate in the low-frequency band, the electrical length of the third antenna radiator A3 needs to be adjusted according to the low-frequency wavelength. The adjusted length of the third antenna radiator A3 is too long for the MHB band, making it impossible to adjust to the quarter-wavelength electrical length of the MHB band via a switch. This results in the MHB band lacking the differential mode formed by the first antenna radiator A0, the second antenna radiator A2, and the third antenna radiator A3, leading to a decrease in efficiency. Furthermore, the higher-order modes of the third antenna radiator A3 will further affect the MHB band. To solve the above problems, a third coupling structure A9 is set at a distance from the first coupling interval SL1. The third coupling structure A9 is connected to the main ground and has a third coupling interval SL3 between it and the third antenna radiator A3. Capacitive coupling is achieved between the third coupling structure A9 and the third antenna radiator A3 through the third coupling interval SL3. By controlling the coupling spacing and coupling area of ​​the third coupling interval SL3, the third coupling interval SL3 is equivalent to a large capacitor in the MHB band, realizing the grounding function of MHB. The third coupling interval SL3 is equivalent to a small capacitor in the LB band, and for LB, it is only a fine adjustment of the resonant position. Thus, in the MHB mode, the effect of three-segment composite slot common mode (thirteenth current I50) and differential mode (fourth current I51 and fifth current I52) dual-mode operation is achieved through the coupling back to ground by the third coupling interval SL3 and the third coupling structure A9. In the LB operating mode, the quarter-wavelength mode (fourteenth current I70) from the third grounding point G3 to the first coupling interval SL1 is achieved.

[0103] In one specific implementation, the third coupling structure A9 is a distributed capacitive coupling structure and is an upright metal sheet structure. The distance between the third coupling structure A9 and the first coupling interval SL1 is an electrical length between a quarter wavelength of HB and a quarter wavelength of MB (approximately 10 mm), which is convenient for balancing the parasitic mode design of MB and HB. The slot width of the third coupling interval SL3 can be set to approximately 0.5 mm.

[0104] like Figure 16 As shown, Figure 15The corresponding S11 curves of electronic devices in the LB, MHB, and GPS L5 bands are shown below. Figure 17 As shown, Figure 15 The corresponding electronic equipment's overall efficiency curves in the LB, MHB, and GPS L5 bands; through Figure 16 and Figure 17 It can be seen that the electronic device in this embodiment still maintains a peak efficiency of about -2dB at high frequencies and about -6dB in the GPS L5 band, and the performance of the L5 band remains stable when switching between the LB and MHB bands. Furthermore, it should be noted that, to further improve low-frequency efficiency, the electrical length of the third antenna radiator A3 can be increased to increase the low-frequency radiating aperture.

[0105] Optionally, it also includes: a second feeder matching circuit 20;

[0106] The second feed point F2 is connected to the third feed source F03 through the second feed matching circuit 20;

[0107] The second feed matching circuit 20 can be switched between multiple states. When the third antenna radiator A3 is operating in the low frequency band or the mid-to-high frequency band, the second feed matching circuit 20 is in different states.

[0108] In the embodiments of this application, such as Figure 18 As shown, the first terminal 210 of the second feed matching circuit 20 is connected to the third feed source F03, the second terminal 220 of the second feed matching circuit 20 is connected to the second feed point F2, and the third terminal 230 of the second feed matching circuit 20 is grounded.

[0109] As a specific implementation method, such as Figure 18 As shown, the second feed matching circuit 20 includes a fourth loading element 31, a fifth loading element 32, and a first adjustment unit 33. The second feed point F2 is connected to the third feed source F03 through the fourth loading element 31 and the fifth loading element 32. One end of the first adjustment unit 33 is connected to a first node, and the other end of the first adjustment unit 33 is grounded. The first node is located between the fourth loading element 31 and the fifth loading element 32. The first adjustment unit 33 includes a second switch SW2 and at least one sixth loading element 34. The second switch SW2 can be switched between multiple conduction states. When the second switch SW2 is in different conduction states, the third antenna radiator A3 is connected to the third feed source F03 through the fifth loading element 32 and different fourth loading elements 31, and / or the third antenna radiator A3 is grounded through the fifth loading element 32 and different sixth loading elements 34, and the third feed source F03 is grounded through the fifth loading element 32 and different sixth loading elements 34.

[0110] As a specific implementation, the sixth loading element 34 may be capacitive, inductive, or 0 ohms, wherein different sixth loading elements 34 may have different electrical characteristics (including capacitive, inductive, or resistive characteristics).

[0111] In one specific implementation, the fourth loading element 31 includes a sixth inductor element L6 and a seventh inductor element L7. The seventh inductor element L7 can be switched to be connected or disconnected via the second switch SW2 to adjust the inductance value of the fourth loading element 31. Specifically, to ensure good isolation from the first feed point F1, the sixth inductor element L6 and the seventh inductor element L7 need to use large inductances. The fifth loading element 32 includes a first resistor R1 for fine-tuning the initial impedance. The sixth loading element 34 includes a fifth capacitor element C5, a sixth capacitor element C6, and a second resistor R2 connected in parallel. The connection of the fifth capacitor element C5, the sixth capacitor element C6, and the second resistor R2 can be switched via the second switch SW2 to adjust the low-frequency impedance and also to adjust the parasitic mode of the third antenna radiator A3 of the MHB or to adjust the influence of the higher-order modes of the third antenna radiator A3.

[0112] Optionally, the electrical length of the third antenna radiator A3 satisfy: ;

[0113] in, It is the wavelength corresponding to the resonant frequency of the third antenna radiator A3 operating in the low-frequency band.

[0114] In the embodiments of this application, Figure 15 In the electronic device shown, when the electrical length of the third antenna radiator A3 is about a quarter wavelength of the low frequency band, the radiation size of a quarter wavelength in the low frequency band can be well achieved.

[0115] As a specific implementation method, such as Figure 19As shown, when the first antenna radiator A0, the second antenna radiator A2, and the third antenna radiator A3 are mounted on or formed by the frame of the electronic device, the first coupling interval SL1 and the second coupling interval SL2 are located at the bottom of the frame of the electronic device. The first part of the third antenna radiator A3, radiator A31, the second antenna radiator A2, and the first part of the first antenna radiator A0, radiator A01, can all be located on the same side of the frame, such as the bottom side of the electronic device frame. The second part of the third antenna radiator A3... The radiator A32 can be set on the other side of the frame, such as the left side of the electronic device frame. The third antenna radiator A3 is also provided with a third grounding point G3. The distance between the third grounding point G3 and the first coupling interval SL1 is the length of the third antenna radiator A3. At this time, the distance from the third grounding point G3 to the bottom edge of the device frame can be set to about one-eighth of the wavelength of the LB band, and the distance from the first coupling interval SL1 to the left side of the device frame can be set to about one-eighth of the wavelength of the LB band. The combination of the two can better achieve a radiation size of one-quarter wavelength in the low frequency band.

[0116] Optionally, the electronic device further includes a fourth antenna radiator A10;

[0117] The fourth antenna radiator A10 is arranged along the extending direction of the first partial radiator A4, and there is a gap between the fourth antenna radiator A10 and the first partial radiator A4.

[0118] The length of the fourth antenna radiator A10 is less than the length of the first part radiator A4. The first end A101 of the fourth antenna radiator A10 is connected to the first grounding point G1, and the second end A102 of the fourth antenna radiator A10 is connected to the third connection point P3 on the first part radiator A4.

[0119] In the embodiments of this application, such as Figure 20 As shown, a fourth antenna radiator A10 is added to the electronic device. Through the fourth antenna radiator A10, an inner slot structure is added to the first slot structure formed by the first grounding point G1 and the second grounding point G2, realizing a double-slot structure. To better excite the inner slot structure, the first end A101 of the fourth antenna radiator A10 is connected to the first grounding point G1, and the second end A102 of the fourth antenna radiator A10 extends along the extension direction of the first part of the radiator A4 to the third connection point P3, and is connected to the first part of the radiator A4 at the third connection point P31. In a specific embodiment, the third connection point P3 is located between the first tuning circuit M1 and the second grounding point G2.

[0120] Optionally, it also includes: a second tuning circuit M2;

[0121] The second tuning circuit M2 is connected to the fourth connection point P4 on the fourth antenna radiator A10, and the fourth connection point P4 is located between the first grounding point G1 and the second grounding point G2.

[0122] In this embodiment, the fourth antenna radiator A10 is further provided with a second tuning circuit M2. The second tuning circuit M2 is used to adjust the electrical length of the fourth antenna radiator A10. In one specific implementation, by adjusting the size of the fourth antenna radiator A10 and the loading device of the second tuning circuit M2, the half-wavelength mode of the inner slot at a frequency slightly higher than GPS L1 can be excited, corresponding to the current generated (the thirteenth current I91 and the fourteenth current I92), and the tenth current I13 of the IFA mode that excites the body of the first antenna radiator A0 works together in the GPS L1 frequency band. At the same time, the working modes of GPS L5 and MHB of the electronic device are not affected. The feeding from the first feed point F1 enables the operation of more frequency bands such as GPS L5, GPS L1, and MHB.

[0123] Optionally, the electrical length of the fourth antenna radiator A10 satisfy: ;

[0124] in, The wavelength is the wavelength corresponding to the resonant frequency of the second sub-band of the GPS frequency band when the fourth antenna radiator A10 operates.

[0125] For example, when the electrical length of the fourth antenna radiator A10, i.e. the electrical length from the first ground point G1 to the third connection point P3, is half the wavelength of GPS L1, the half-wavelength mode of the inner slot, which is slightly higher than the GPS L1 frequency, can be excited, and the corresponding currents (the thirteenth current I91 and the fourteenth current I92) and the tenth current I13 of the IFA mode that excites the body of the first antenna radiator A0 work together in the GPS L1 frequency band.

[0126] Optionally, the third antenna radiator A3 is provided with a third grounding point G3 and a fourth grounding point G4 in sequence. Both the third grounding point G3 and the fourth grounding point G4 are connected to the antenna floor G0. The third part of the radiator A11 on the third antenna radiator A3, from the third grounding point G3 to the fourth grounding point G4, forms a second slot structure antenna.

[0127] In the embodiments of this application, such as Figure 21As shown, the third antenna radiator A3 is provided with a third grounding point G3 and a fourth grounding point G4 in sequence, and both the third grounding point G3 and the fourth grounding point G4 are connected to the antenna floor G0. The fourth grounding point G4 is farther away from the first coupling interval SL1 than the third grounding point G3. The third grounding point G3 and the fourth grounding point G4 form a second slot structure antenna. By adjusting the electrical length of the second slot structure antenna, it can be fed from the first feed point F1 to achieve multi-band operation.

[0128] Optionally, it also includes the third tuning circuit M3;

[0129] The third tuning circuit M3 is connected to the fourth connection point P4 on the third radiator A11, and the fourth connection point P4 is located between the third grounding point G3 and the fourth grounding point G4.

[0130] In this embodiment, a third tuning circuit M3 is provided on the second slot structure antenna. The third tuning circuit M3 can adjust the electrical length of the second slot structure, so that multi-band operation is achieved by feeding from the first feed point F1.

[0131] In one specific implementation, the third tuning circuit M3 is composed of a capacitor element, an inductor element, or a combination of a capacitor element and an inductor element.

[0132] Optionally, the electric length of the third radiator A11 satisfy ;

[0133] in, The wavelength is the wavelength corresponding to the resonant frequency of the second sub-band of the GPS frequency band in which the third radiator A11 operates.

[0134] For example, when the electrical length of the second slot structure antenna can be adjusted to half the wavelength of the L1 band in the GPS frequency band via the third tuning circuit M3, the antenna fed at the first feed point F1 can couple into the second slot structure antenna to achieve a slot half-wavelength operating mode for GPS L1, generating the fifteenth circuit I81 and the sixteenth current I82. This allows the antenna fed at the first feed point F1 to operate in more frequency bands, including GPS L5, GPS L1, and MHB, while the operating modes of other frequency bands remain unaffected. Furthermore, in one specific implementation, to ensure sufficient magnetic field coupling in the slot mode of the GPS L1 band, the return metal structure at the third grounding point G3 needs to be made small to ensure a certain inductance, such as 1mm wide and 1mm high.

[0135] To further illustrate the beneficial effects of this application, a comparative example is also provided, such as... Figure 22 As shown, relative to Figure 1The electronic device shown has eliminated the first slot structure antenna on the right, that is, eliminated the structural design of the second grounding point G2 and the first tuning circuit M1. Figure 23 for Figure 1 The electronic devices shown and Figure 22 The diagram shows the initial input impedance (no feeder matching) of the electronic device in state B3. The impedance between Mark1 and Mark2 and between Mark5 and Mark6 is the impedance of the GPS L5 band, and the impedance between Mark3 and Mark4 and between Mark7 and Mark8 is the impedance of the B3 band. It is clear that whether there is a first slot structure on the right has little effect on the impedance of the B3 band, but has a significant effect on the impedance of the GPS L5 band. Figure 22 The corresponding electronic equipment has a short impedance position in the GPS L5 band and is very close to the edge of the circle diagram. Therefore, to achieve proper matching, more extreme matching values ​​are required, resulting in greater matching losses. In particular, to balance MHB matching, even more extreme component values ​​are needed for the parallel LC feeder, leading to even greater matching losses. Figure 1 For the corresponding electronic devices, the impedance position of L5 is significantly longer and closer to 50 ohms, which can greatly reduce matching losses. Figure 24 In B3 state Figure 1 The electronic devices shown and Figure 22 A comparison of the efficiency curves for the various electronic devices shown illustrates that... Figure 1 The electronic device shown can improve the GPS L5 aperture radiation efficiency by approximately 0.3-0.5 dB. The difference between the system radiation efficiency and the aperture radiation efficiency represents the losses incurred by the device. Figure 1 compared to Figure 22 In other words, compared with the structure without the first slot, the loss is more than 2dB lower, the overall efficiency is more than 2dB higher, and the bandwidth is significantly wider.

[0136] It should be noted that electronic devices include, but are not limited to, mobile phones, tablets, laptops, base stations, watches, etc. The antenna radiator in the above-mentioned electronic devices can be implemented in various forms such as computer numerical control (CNC), metal die casting, flexible printed circuit board (FPC), laser direct forming (LDS), etc. This application does not limit it.

[0137] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0138] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0139] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0140] The above describes the preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles described in this application, and these improvements and modifications are also within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: First antenna radiator, second antenna radiator and third antenna radiator; The first end of the second antenna radiator has a first coupling interval with the third antenna radiator, and the second end of the second antenna radiator has a second coupling interval with the first antenna radiator; The first antenna radiator is provided with a first feed point, a first ground point and a second ground point in sequence. Both the first ground point and the second ground point are connected to the antenna ground plane. The first part of the first antenna radiator between the first ground point and the second ground point forms a first slot structure antenna. The distance from the first feed point to the second coupling interval is less than the distance from the second ground point to the second coupling interval. The first antenna radiator is designed to operate in the GPS frequency band. The second portion of the first antenna radiator between the first grounding point and the second coupling interval, the second antenna radiator, and the third antenna radiator are used to operate in the mid-to-high frequency band.

2. The electronic device according to claim 1, characterized in that, Also includes: First coupling reinforcement structure and / or second coupling reinforcement structure; The first coupling reinforcement structure is positioned opposite the second coupling interval, and the second coupling reinforcement structure is positioned opposite the first coupling interval.

3. The electronic device according to claim 1, characterized in that, Also includes: First coupling structure and / or second coupling structure; The first coupling structure is positioned directly opposite the first region of the first portion of the radiator; The second coupling structure is positioned directly opposite the second region of the first radiator. The first region and the second region are the regions where the current reversal point is formed on the first part of the radiator when the first part of the radiator is operating in the full wavelength mode of the mid-to-high frequency band.

4. The electronic device according to claim 1, characterized in that, Also includes: First tuning circuit; The first tuning circuit is connected to a first connection point on the first antenna radiator, and the first connection point is located between the first grounding point and the second grounding point.

5. The electronic device according to claim 1, characterized in that, The electrical length of the radiator on the second part of the radiator from the first feed point to the first ground point satisfy: ; And / or, Part 1: Electrical Length of the Radiator satisfy: ; in, It is the wavelength corresponding to the resonant frequency of the first sub-band of the GPS frequency band where the first antenna radiator operates.

6. The electronic device according to claim 1, characterized in that, The first end of the third antenna radiator is connected to the first adjustment module, or the first end of the third antenna radiator is grounded, wherein the first end of the third antenna radiator is the end closest to the first coupling interval; The first adjustment module can be switched between multiple states. When the second radiator, the second antenna radiator, and the third antenna radiator are operating in different sub-bands of the mid-to-high frequency band, the first adjustment module is in different states.

7. The electronic device according to claim 1, characterized in that, Also includes: Combiner and first feeder matching circuit; The input terminal of the combiner is connected to at least one first feed source and at least one second feed source, the output terminal of the combiner is connected to the first terminal of the first feed matching circuit, the first feed point is connected to the second terminal of the first feed matching circuit, and the third terminal of the first feed matching circuit is grounded. The first feed source is used to feed in signals in the GPS frequency band, and the second feed source is used to feed in signals in the mid-to-high frequency band; The first feeder matching circuit is used to match the input impedance of the first feed point in the GPS frequency band and the input impedance of the first feed point in the mid-to-high frequency band.

8. The electronic device according to claim 7, characterized in that, The first feeder matching circuit includes a filter unit, at least one first loading element, and at least one second loading element; The output terminal of the combiner is connected to the first feed point through at least one second loading element. The first feed point is grounded through the filter unit and also through the first loading element. The filtering unit is capacitive for the GPS frequency band and inductive for a specific sub-band within the mid-to-high frequency band.

9. The electronic device according to claim 1, characterized in that, It also includes: a third coupling structure, which is disposed opposite to the third antenna radiator, and there is a third coupling interval between the third coupling structure and the third antenna radiator; The third antenna radiator is provided with a second feed point, which is located close to the first coupling interval; The third antenna radiator is also used to operate in the low-frequency band.

10. The electronic device according to claim 9, characterized in that, Also includes: Second feeder matching circuit; The second feed point is connected to the third feed source through the second feed matching circuit; The second feed matching circuit can be switched between multiple states. When the third antenna radiator is operating in the low frequency band or the mid-to-high frequency band, the second feed matching circuit is in different states.

11. The electronic device according to claim 9, characterized in that, The electrical length of the third antenna radiator satisfy: ; in, It is the wavelength corresponding to the resonant frequency of the third antenna radiator operating in the low-frequency band.

12. The electronic device according to claim 1, characterized in that, The electronic device also includes a fourth antenna radiator; The fourth antenna radiator is arranged along the extension direction of the first part of the radiator, and there is a gap between the fourth antenna radiator and the first part of the radiator. The length of the fourth antenna radiator is less than the length of the first part of the radiator. The first end of the fourth antenna radiator is connected to the first grounding point, and the second end of the fourth antenna radiator is connected to the third connection point on the first part of the radiator.

13. The electronic device according to claim 12, characterized in that, Also includes: Second tuning circuit; The second tuning circuit is connected to a fourth connection point on the fourth antenna radiator, the fourth connection point being located between the first ground point and the second ground point.

14. The electronic device according to claim 12, characterized in that, The electrical length of the fourth antenna radiator satisfy: ; in, The wavelength is the wavelength corresponding to the resonant frequency of the second sub-band of the GPS frequency band in which the fourth antenna radiator operates.

15. The electronic device according to claim 1, characterized in that, The third antenna radiator is provided with a third grounding point and a fourth grounding point in sequence. Both the third grounding point and the fourth grounding point are connected to the antenna ground plane. The third part of the radiator from the third grounding point to the fourth grounding point forms a second slot structure antenna.

16. The electronic device according to claim 15, characterized in that, It also includes: a third tuning circuit; The third tuning circuit is connected to a fourth connection point on the third radiator, the fourth connection point being located between the third grounding point and the fourth grounding point.

17. The electronic device according to claim 15, characterized in that, The electric length of the third part of the radiator satisfy ; in, The wavelength is the wavelength corresponding to the resonant frequency of the second sub-band of the GPS frequency band in which the third radiator operates.

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