First radiator and electronic equipment

Abstract

The invention discloses a first radiating body and electronic equipment, the first radiating body is a polygonal plane radiating body, and the polygonal plane radiating body is provided with a first feeding point, a second feeding point and a target grounding point; when the first feeding point is in a working state, the first feeding point and the target grounding point form a first current path on a first edge of the first radiator for transmitting and / or receiving a first frequency band signal; when the second feeding point is in a working state, the second feeding point and the target grounding point form a second current path on a second edge of the first radiator for transmitting and / or receiving a second frequency band signal; wherein the first edge and the second edge are different edges of the first radiator, the first current path and the second current path meet an orthogonal condition, and the first frequency band signal is different from the second frequency band signal.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wireless communication, and relates to but is not limited to a first radiator and an electronic device. BACKGROUND

[0002] In modern mobile terminals, the design of the antenna structure is of great significance to the realization of multi-band communication and signal stability. The microstrip patch antenna (Patch) is a small-sized planar antenna integrated on a dielectric material, which has the advantages of compact structure, easy integration, low manufacturing cost, and is widely used in the fields of microwave frequency wireless communication, radar and radio frequency identification. The isolation of the same mode antenna is obviously poor, and the patch antenna needs to be decoupled when designing multiple antennas. The common method is slot processing. Some patch antenna designs need to maintain the integrity of the plane and cannot be processed by slotting. How to solve the isolation between antennas without slotting processing has become a technical problem to be solved. SUMMARY

[0003] The embodiments of the present application provide a first radiator and an electronic device.

[0004] The technical scheme of the embodiments of the present application is as follows: In the first aspect, the embodiments of the present application provide a first radiator, the first radiator is a polygonal planar radiator, and a first feeding point, a second feeding point and a target grounding point are arranged on the polygonal planar radiator. When the first feeding point is in a working state, the first feeding point and the target grounding point form a first current path on a first edge of the first radiator, for transmitting and / or receiving a first frequency band signal. When the second feeding point is in a working state, the second feeding point and the target grounding point form a second current path on a second edge of the first radiator, for transmitting and / or receiving a second frequency band signal. Wherein, the first edge and the second edge are different edges of the first radiator, the first current path and the second current path satisfy the orthogonal condition, and the first frequency band signal and the second frequency band signal are different.

[0005] In the second aspect, the embodiments of the present application provide an electronic device, which comprises a first radiator, the first radiator is a polygonal planar radiator, and a first feeding point, a second feeding point and a target grounding point are arranged on the polygonal planar radiator. When the first feeding point is in a working state, the first feeding point and the target grounding point form a first current path on a first edge of the first radiator, for transmitting and / or receiving a first frequency band signal. In the case that the second feeding point is in the working state, the second feeding point and the target ground point form a second current path on the second edge of the first radiator, to emit and / or receive the second frequency band signal. The first edge and the second edge are different edges of the first radiator, the first current path and the second current path satisfy the orthogonal condition, and the first frequency band signal and the second frequency band signal are different. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 A schematic diagram of a first radiator is provided for the embodiments of the present application; Figure 2 A schematic diagram of a first radiator is provided for the embodiments of the present application; Figure 3 A schematic diagram of an electronic device is provided for the embodiments of the present application; Figure 4 A schematic diagram of a first radiator is provided for the embodiments of the present application; Figure 5 A schematic diagram of a current path is provided for the embodiments of the present application; Figure 6 A schematic diagram of an electronic device is provided for the embodiments of the present application; Figure 7 A schematic diagram of a mobile phone is provided for the embodiments of the present application; Figure 8 A schematic diagram of a mobile phone is provided for the embodiments of the present application; Figure 9 A schematic diagram of a diversity filter is provided for the embodiments of the present application; Figure 10 A schematic diagram of a diversity filter is provided for the embodiments of the present application; Figure 11 A schematic diagram of an S parameter curve in the case of no matching is provided for the embodiments of the present application; Figure 12 A schematic diagram of current distribution of an antenna base mode is provided for the embodiments of the present application; Figure 13 A schematic diagram of an S parameter curve in the case of matching is provided for the embodiments of the present application; Figure 14 A schematic diagram of a matching circuit is provided for the embodiments of the present application; Figure 15 A circuit mode of an antenna 1 is provided for the embodiments of the present application; Figure 16 A circuit mode of an antenna 2 is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0007] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the specific technical scheme of the embodiments of the present application will be further described in detail below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0008] In the following description, "some embodiments" are referred to, which describe a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0009] In the following description, the terms "first\second\third" are only used to distinguish similar objects, and do not represent a specific order of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence as allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0010] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0011] The embodiments of the present application provide a first radiator, such as Figure 1 As shown, the first radiator is a polygonal plane radiator, and a first feed point 111, a second feed point 112 and a target ground point 10 are arranged on the polygonal plane radiator. When the first feed point 111 is in an operating state, the first feed point 111 and the target ground point 10 form a first current path on a first edge 131 of the first radiator, to emit and / or receive a first frequency band signal. The first radiator is a polygonal plane structure, and the shape of the first radiator can be rectangular, trapezoidal or other polygonal forms.

[0012] The feed point refers to a port on the antenna structure for inputting or outputting radio frequency energy. When the first feed point or the second feed point is in an operating state, the current distribution on the antenna can be excited, so as to realize the emission or reception of electromagnetic waves. Two feed points are arranged on the same radiator, which are respectively used to support different communication tasks.

[0013] The target ground point refers to a point on the antenna structure connected with the reference ground, which is used to form a loop, so that the current can flow from the first feed point or the second feed point through the radiator and return to the target ground point, to complete the radiation or reception process of electromagnetic waves.

[0014] The design position and number of grounding points are crucial for controlling the direction and length of the current path. For example, the target grounding point can be arranged on one side edge of the first radiator, while the first feeding point and the second feeding point are respectively arranged on different edges of the first radiator to ensure that the current path between the first feeding point and the second feeding point has an orthogonal relationship. The orthogonal relationship refers to the perpendicularity of the spatial distribution of the two current paths, i.e., the current loop formed by the two current paths has a 90-degree geometric angle. This design helps to reduce the coupling between the two antennas, improve the isolation, and reduce signal interference.

[0015] In practical applications, due to various limitations, the two current paths cannot be completely perpendicular in spatial distribution when designing the feeding points and grounding points. There may be an angle deviation, such as a 5-degree deviation or a 10-degree deviation, i.e., 85 degrees to 95 degrees or 80 degrees to 100 degrees. It can be understood that these deviations can be reduced by filters and other means to reduce coupling and improve isolation. Within the deviation, the two current paths can be considered to satisfy the orthogonal relationship.

[0016] In the implementation process, by reasonably arranging the first feeding point, the second feeding point, and the target grounding point, the coupling effect between the antennas can be effectively reduced, the isolation can be improved, and signal interference can be avoided.

[0017] The current path refers to the current path that flows along the surface of the first radiator from the first feeding point or the second feeding point and finally returns to the target grounding point during the operation of the antenna.

[0018] When the second feeding point 112 is in an operating state, the second feeding point 112 and the target grounding point 10 form a second current path on the second edge 132 of the first radiator to emit and / or receive a second frequency band signal. Here, different combinations of feeding points and target grounding points can form different current paths, thereby affecting the operating frequency and directional characteristics of the antenna. For example, the first current path can cover the Wi-Fi 5GHz or GPS L1 frequency band, while the second current path can cover the Wi-Fi 2.4GHz or Sub-6G NR n77 / 78 frequency band. The selection of the first frequency band and the second frequency band is based on specific communication requirements and device application scenarios.

[0019] The first edge 131 and the second edge 132 are different edges of the first radiator, the first current path and the second current path satisfy an orthogonal condition, and the first frequency band signal and the second frequency band signal are different.

[0020] In the implementation process, by forming current paths meeting the orthogonal condition on different edges, the coupling effect between antennas can be significantly reduced, the isolation degree is improved, and signal interference is avoided. In addition, the design of the first radiator can realize flexible allocation of different frequency bands and assign them to different feed points, which helps to reduce the number of combiners used in the radio frequency circuit, simplify the matching network, reduce the insertion loss, and improve the overall communication efficiency.

[0021] In the embodiments of the present application, the first radiator is provided with multiple feed points and a target grounding point on the polygonal planar radiator, so that each feed point can form an independent current path on the corresponding edge, and the current paths meet the orthogonal condition. Therefore, in different working states, the first radiator can support multiple communication tasks of different frequency bands respectively. The design of the first radiator not only improves the integration of the antenna system, but also significantly reduces the coupling effect between antennas and optimizes the overall communication performance.

[0022] In some embodiments, as shown in Figure 2 The target grounding point includes a first grounding point 101 and a second grounding point 102. Here, the target grounding point is further divided into two different target grounding points: the first grounding point and the second grounding point, which are used with different feed points respectively. By further dividing the target grounding point into two different target grounding points and using them with different feed points respectively, more precise current path control can be achieved. By setting two independent target grounding points, independent current paths can be formed with different feed points, which helps to reduce the interference between antennas and improve the performance of signals in each frequency band.

[0023] When the first feed point 111 is in a working state, the first feed point 111 and the first grounding point 101 form a first current path on the first edge 131 of the first radiator to transmit and / or receive the first frequency band signal; When the second feed point 112 is in a working state, the second feed point 112 and the second grounding point 102 form a second current path on the second edge 132 of the first radiator to transmit and / or receive the second frequency band signal.

[0024] The above describes the current paths formed by different feeding points and corresponding target grounding points in different working states for transmitting and receiving signals of specific frequency bands. For example, when the first feeding point 111 is in a working state, a current loop can be formed between the first feeding point 111 and the first grounding point 101 on the first edge 131 of the first radiator. The current loop formed by the first feeding point and the first grounding point determines the transmitting and receiving capabilities of the antenna for signals of the first frequency band. Similarly, when the second feeding point 112 is in a working state, another current path is formed between the second feeding point 112 and the second grounding point 102 on the second edge 132 of the first radiator, serving signals of the second frequency band.

[0025] This design allows the same first radiator to support the operation of multiple frequency bands through different combinations of feeding points and target grounding points without damaging the overall structure of the first radiator. At the same time, since each current path is located on a different edge of the first radiator, the current distribution between the two current paths is significantly different. The significant difference in current distribution reduces the coupling between the two antennas and improves the isolation.

[0026] By arranging independent current paths on different edges, the first radiator can support the transmission and reception of multiple frequency band signals, and different current paths can meet the orthogonality condition. This design can effectively reduce the interference between antennas and improve the performance of the entire system.

[0027] In the embodiments of the present application, multiple feeding points and multiple target grounding points are arranged on the first radiator, and different current paths are formed according to different working states. This design method can realize the transmission and reception of multiple frequency band signals. This design method can also reduce the coupling effect between antennas. This design method can further improve the overall communication performance and stability of the system.

[0028] In some embodiments, a first distance between the first straight line formed by the first feeding point and the first grounding point and the first edge is less than a first distance threshold; Here, the first distance threshold refers to an upper limit of the distance set to ensure the performance of the antenna. The first distance threshold is usually determined according to electromagnetic simulation results or experimental test data, and is used to control the relative relationship between the positions of the first feeding point and the first grounding point and the first edge, thereby affecting the current distribution and radiation efficiency.

[0029] By controlling the distance between the first feeding point and the first grounding point to be less than the first distance threshold, the current distribution of the antenna can be effectively improved, so that the current is mainly concentrated in the area close to the first edge, thereby avoiding strong coupling with the antenna that can be arranged on other edges. The design of controlling the distance between the first straight line formed by the first feeding point and the first grounding point and the first edge to be less than the first distance threshold is particularly suitable for the scenario that the camera deco is close to the metal frame of the mobile phone, and can reduce interference and improve the antenna efficiency in this case.

[0030] The second distance between the second straight line formed by the second feeding point 112 and the second grounding point 102 and the second edge 132 is less than a second distance threshold.

[0031] Here, the second distance threshold has similarity with the first distance threshold, and is a parameter set for the geometric layout between the second feeding point and the second grounding point. The purpose of setting the second distance threshold is to optimize the antenna performance, specifically to improve the isolation between the two antennas sharing the same radiator.

[0032] Since the present scheme adopts a multi-feeding point antenna design of a shared radiator, the two antennas can excite the same resonance mode under certain conditions, which can cause the overall isolation of the system to decrease. By controlling the distance between the second straight line formed by the second feeding point and the second grounding point and the second edge to be less than the second distance threshold, the current distribution pattern can be changed to some extent, so that the current hot spots of the two antennas on their respective working frequency bands do not overlap, thereby significantly improving the isolation.

[0033] In the embodiments of the present application, by setting the first distance threshold of the first straight line formed by the first feeding point and the first grounding point and the first edge, and the second distance threshold of the second straight line formed by the second feeding point and the second grounding point and the second edge, the current path length and distribution in the antenna structure are reasonably controlled, so that the resonance characteristics and isolation performance of the antenna can be optimized, thereby effectively reducing the mutual interference between the antennas and improving the overall communication performance.

[0034] In some embodiments, the first feeding point is in a working state, and the first feeding point and the target grounding point can form a third current path on the first edge to transmit and / or receive a third frequency band signal. Here, a plurality of target grounding points can also be arranged in the area close to the first edge to form a third current path with the first feeding point, which is different from the first current path, so that the third current path can transmit and / or receive a third frequency band signal.

[0035] The length of the third current path is different from the length of the first current path.

[0036] Here, since the circuit paths are related to the signal frequency bands, the current paths with different lengths formed on the planar radiator can correspond to receiving and transmitting signals of different frequency bands.

[0037] In some embodiments, a plurality of target grounding points can also be arranged near the second edge, and form other current paths different from the second circuit path with the second feeding point, so that the other current paths can receive and transmit signals of different frequency bands from the second frequency band signals.

[0038] In the implementation process, the target grounding point can be set based on actual use requirements.

[0039] In the embodiments of the present application, by arranging different target grounding points, one feeding point and a plurality of target grounding points can form a plurality of current paths, so as to realize receiving and transmitting signals of a plurality of frequency bands, and improve the signal receiving and transmitting capability of the planar radiator.

[0040] The present application provides an electronic device, which comprises Figure 1 The first radiator is a polygonal planar radiator, and the first feeding point 11, the second feeding point 112, and the target grounding point 10 are arranged on the polygonal planar radiator. When the first feeding point 111 is in an operating state, the first feeding point 111 and the target grounding point 10 form a first current path on the first edge 131 of the first radiator, to transmit and / or receive first frequency band signals. Here, the first feeding point refers to a connection point arranged on the first radiator for inputting or outputting radio frequency signals. The first feeding point determines the resonant mode of the antenna at a certain specific frequency, and supports the communication function of a specific frequency. For example, the first feeding point can be designed to support the Wi-Fi 5GHz frequency band, so that when the first feeding point is in an operating state, Wi-Fi 5GHz signals can be effectively transmitted or received.

[0041] The target grounding point refers to a reference point arranged on the first radiator for forming a backflow path. Reasonable selection of the grounding point helps to control the radiation direction and impedance matching of the antenna, while reducing the coupling between other antennas. For example, the target grounding point can be arranged near one side of the metal frame of the mobile phone, so as to enhance the isolation effect between the frame antenna.

[0042] The first edge refers to an edge region where a current path formed between the first feeding point and the target ground point is located. The first edge is usually located at one of the long edges of the first radiator. Since the first current path is formed between the first feeding point and the target ground point, a corresponding electromagnetic wave will be excited on the first current path, and through this excitation process, the emission or reception of the first frequency band signal can be realized.

[0043] In the implementation process, by reasonably setting the positions of the first feeding point and the target ground point, it can be ensured that the first current path has good radiation performance and low loss. In addition, since the first current path is mainly distributed along the first edge, the first current path can effectively avoid interference with adjacent antennas, thereby improving the overall stability of the system.

[0044] When the second feeding point 112 is in an active state, the second feeding point 112 and the target ground point 10 form a second current path on the second edge 132 of the first radiator, for emitting and / or receiving a second frequency band signal. The second feeding point is also a connection point for inputting or outputting radio frequency signals, but the position of the second feeding point is different from that of the first feeding point. The second feeding point is usually designed to support the communication function of another frequency band, such as the Wi-Fi 2.4GHz frequency band. When the second feeding point is in an active state, the second feeding point can independently emit or receive signals of the Wi-Fi 2.4GHz frequency band without being affected by the first feeding point.

[0045] The second edge is an edge region where a current path formed between the second feeding point and the target ground point is located. The second edge is usually perpendicular to the first edge, thereby ensuring that the two current paths have an orthogonal relationship. The orthogonal condition helps to reduce the electromagnetic coupling between the two antennas and improve the isolation.

[0046] In the implementation process, by reasonably setting the positions of the second feeding point and the target ground point, it can be ensured that the second current path has good radiation performance and low loss. Since the second current path is orthogonal to the first current path, the mutual interference between the two antennas can be significantly reduced, thereby improving the stability and efficiency of the system.

[0047] The first edge and the second edge are different edges of the first radiator, the first current path and the second current path satisfy an orthogonal condition, and the first frequency band signal and the second frequency band signal are different.

[0048] The orthogonal condition refers to the first current path and the second current path having a perpendicular relationship in space, so that the electromagnetic coupling between the first current path and the second current path is reduced through the orthogonal condition. The orthogonal condition can be realized by reasonably arranging the positions of the first feeding point and the second feeding point. For example, the first feeding point can be arranged at the upper left corner of the first radiator, and the second feeding point can be arranged at the lower right corner, so that a perpendicular relationship is naturally formed between the first feeding point, the second feeding point, and the current path between the target ground point.

[0049] By reasonably designing the positions of the feeding points and the ground point, sufficient orthogonality can be ensured between the two current paths. The design that meets the orthogonal condition not only helps to reduce the interference between the two antennas, but also improves the radiation efficiency of each antenna, thereby improving the communication quality of the system.

[0050] The first frequency band signal and the second frequency band signal refer to communication signals of different frequency ranges supported by the first feeding point and the second feeding point respectively. For example, the first frequency band signal can be Wi-Fi 5GHz, and the second frequency band signal can be Wi-Fi 2.4GHz. The first frequency band signal and the second frequency band signal usually do not overlap, so the first frequency band signal and the second frequency band signal can work independently and do not interfere with each other.

[0051] By reasonably allocating the working frequency bands corresponding to the two feeding points, it can be ensured that the two antennas operate independently in their respective frequency bands, thereby avoiding the same frequency interference. In addition, since the two antennas cover different frequency bands, various communication needs can be met, and the flexibility and compatibility of the system are improved.

[0052] In the embodiments of the present application, by arranging multiple feeding points and a target ground point on the polygonal planar radiator, each feeding point can form an independent current path on the corresponding edge, and the orthogonal condition is met between these current paths. Therefore, in different working states, the first radiator can support multiple communication tasks of different frequency bands respectively. The design of the first radiator not only improves the integration of the antenna system, but also significantly reduces the coupling effect between the antennas, and optimizes the overall communication performance.

[0053] In some embodiments, the electronic device further comprises a second radiator; A third distance between the second radiator and a third edge of the first radiator is less than a third distance threshold; Here, the third edge is different from the first edge and the second edge. As Figure 2 As shown in the figure, the first radiator includes a first edge 131, a second edge 132, and a third edge 133.

[0054] The second radiator can be arranged to have a third distance from the third edge less than a third distance threshold. For example, the second radiator can be a frame antenna of the electronic device, and the frame antenna can be arranged to be parallel to the third edge and to be closer to the third edge, i.e., less than the third distance threshold.

[0055] The first feeding point and the second feeding point are located in a first region of the first radiator. The first region is a region away from the third edge.

[0056] Here, to reduce the influence of the electromagnetic waves transmitted and received by the antenna on the frame antenna, the first feeding point and the second feeding point can be arranged to be located in a region away from the third edge, i.e., away from the frame antenna.

[0057] Figure 3 A schematic diagram of an electronic device provided in an embodiment of the present application is shown in FIG. 1. Figure 3 As shown in FIG. 1, the electronic device includes a frame antenna 11 and a metal decorative member 11, wherein The metal decorative member 11 serves as a first radiator of the electronic device, and is provided with a first feeding point 111, a second feeding point 112, a first grounding point 101, and a second grounding point 102, and includes a first edge 131, a second edge 132, and a third edge 133.

[0058] The frame antenna 21 is arranged to be closer to the third edge 133, i.e., less than a third distance threshold.

[0059] The first feeding point 111 and the second feeding point 112 are arranged in a first region away from the third edge 133, i.e., away from the frame antenna 21.

[0060] In the embodiment of the present application, by arranging the third distance between the second radiator and the first radiator to be less than the third distance threshold, and arranging the first feeding point and the second feeding point in the first region of the first radiator, and arranging the first region to be away from the third edge, the antenna layout can be optimized, so as to reduce the influence of the transmitted and received electromagnetic waves between multiple antennas, improve the space utilization, and further improve the overall performance and stability of the antenna system in the electronic device.

[0061] In some embodiments, the target grounding point includes a first grounding point and a third grounding point; The first grounding point and the third grounding point are respectively located in two regions corresponding to two end points of the third edge; The first grounding point and the third grounding point form a current path capable of canceling each other.

[0062] Figure 4 A schematic diagram of a first radiator provided in an embodiment of the present application is shown in FIG. 1. Figure 4As shown, the first radiator includes a first grounding point 101 and a third grounding point 103, wherein, The first grounding point 101 and the third grounding point 103 are respectively located in two regions corresponding to two end points of the third edge 133; Based on the first grounding point and the third grounding point, a current path 33 capable of mutual cancellation is formed.

[0063] The current path refers to an electromagnetic field propagation path formed by a conductor between a feeding point and a grounding point. The mutually cancelled current path means that the current directions formed between different antennas are opposite or have a large phase difference, thereby producing a cancellation effect in space and reducing the coupling and signal interference between antennas, such as Figure 4 As shown, the current path 33 capable of mutual cancellation in opposite directions is formed. This design takes advantage of the characteristics of the shared radiator, and under the premise of not damaging the structure of the first radiator, the two antennas (the first radiator and the second radiator) have good isolation characteristics by reasonably arranging the grounding points.

[0064] By constructing the mutually cancelled current path between the first grounding point and the third grounding point, the isolation between antennas can be significantly improved, the interference can be reduced, and the antenna performance and system stability can be improved.

[0065] In the embodiments of the present application, the first grounding point and the third grounding point are arranged at two end points of the third edge, and the mutually cancelled current path is formed based on the two grounding points. Through the above arrangement, the current can be guided in the circuit to flow along the specified path, thereby reducing the coupling effect between antennas and further improving the performance and isolation of the multi-antenna system.

[0066] In some embodiments, a fourth current path can be formed on the second radiator; The third edge is adjacent to the first edge, and the first current path is orthogonal to the fourth current path.

[0067] Figure 5 The schematic diagram of the current path provided in the embodiments of the present application is as shown in Figure 5 As shown, the schematic diagram includes a first current path 31 formed on the first radiator and a fourth current path 34 formed on the second radiator, wherein, The third edge 133 of the first radiator is adjacent to and intersects the first edge 131, and the first current path 31 is orthogonal to the fourth current path 34.

[0068] In the embodiments of the present application, the fourth current path formed by the second radiator is orthogonal to the first current path formed by the first radiator. In this way, the mutual influence of the first radiator and the second radiator when transmitting and receiving electromagnetic waves can be reduced, the coupling effect between antennas can be reduced, and the overall communication performance can be optimized.

[0069] In some embodiments, the first radiator reuses a metal decoration disposed on the electronic device, and the second radiator is a frame antenna of the electronic device.

[0070] Here, the metal decoration is a metal component for enhancing the appearance of the electronic device, and is usually located around the camera module. In the embodiments of the present application, the metal decoration is reused as the first radiator of the antenna, that is, by reasonably designing the feed point and the grounding point, the metal decoration can emit and receive electromagnetic waves. The above reuse mode improves the space utilization rate, and the reuse mode avoids the influence of additional antenna structures on the thickness and appearance of the device.

[0071] In actual applications, the metal decoration is very suitable for use as an antenna due to its large surface area and good electrical conductivity. By selecting appropriate feed positions and grounding methods, multi-band and multi-mode antenna performance can be achieved without damaging the original function of the metal decoration. For example, in a smart phone, the metal decoration around the camera can be designed to cover the antenna structure of Wi-Fi 2.4GHz, 5GHz, GPS L1, and Sub-6GHz frequency bands.

[0072] In addition, since the metal decoration and the frame antenna are close in distance, a coupling effect is easily generated. In order to reduce the coupling effect generated between the metal decoration and the frame antenna, the embodiments of the present application adopt a reasonable multi-point grounding strategy, so that the current distribution is more uniform, thereby reducing the interference between the metal decoration and the frame antenna.

[0073] The frame antenna refers to an antenna structure arranged around the edge of the electronic device, which is usually composed of a metal frame. In the embodiments of the present application, the frame antenna serves as the second radiator and cooperates with the antenna formed by the metal decoration to jointly construct a multi-antenna system. The frame antenna has a long radiation path and is suitable for low-frequency signal transmission, and the position of the frame antenna is far away from the user's hand holding area, which helps to reduce the shielding of the human body to the signal.

[0074] In practical applications, the frame antenna can form a multiple-input multiple-output (MIMO) system with the antenna formed by the metal decoration, improving data transmission rate and signal stability. At the same time, by setting multiple feeding points on the frame antenna, multi-band coverage can also be achieved to meet the needs of different communication protocols. For example, in devices supporting Wi-Fi 6E and Sub-6GHz 5G, the frame antenna can be responsible for signal transmission and reception of different frequency bands respectively.

[0075] By setting the frame antenna as the second radiator, the antenna layout can be optimized. Through this layout, the compatibility and system operation efficiency of the multi-antenna system can be enhanced, ultimately improving the overall communication performance and improving the user experience.

[0076] In the embodiments of the present application, by reusing the metal decoration as the first radiator and the frame antenna as the second radiator, the spatial optimization and performance improvement of the antenna structure in the electronic device are achieved. The two radiators work cooperatively through reasonable feeding point configuration and grounding strategy, ensuring that there is no excessive mutual interference between the two radiators, while being able to jointly cover multiple communication frequency bands, thereby improving the communication capability of the electronic device and the user experience.

[0077] In some embodiments, the target ground point includes a first ground point, a second ground point, and a third ground point; a first edge and a second edge of the metal decoration intersect, a third edge and a fourth edge of the metal decoration intersect, the first edge and the fourth edge are parallel, and the second edge and the third edge are parallel; The first ground point and the first feeding point are arranged in a region corresponding to the first edge; The second ground point and the second feeding point are arranged in a region corresponding to the second edge; The third ground point is arranged in a region corresponding to the intersection point of the third edge and the fourth edge.

[0078] Figure 6 The schematic diagram of the electronic device provided in the embodiments of the present application is shown in FIG. 1. Figure 6 As shown in FIG. 1, the first radiator (metal decoration) 11 includes a first ground point 101, a second ground point 102, and a third ground point 103. The first edge 131 and the second edge 132 of the metal decoration 11 intersect, the third edge 133 and the fourth edge 134 intersect, the first edge 131 and the fourth edge 134 are parallel, and the second edge 132 and the third edge 133 are parallel.

[0079] The first ground point 101 and the first feeding point 111 are arranged in a region corresponding to the first edge 131, and can form a first current path adjacent to the first edge 131.

[0080] The second grounding point 102 and the second feeding point 112 are arranged at the area corresponding to the second edge 132, and a second current path adjacent to the second edge 132 can be formed.

[0081] The third grounding point is arranged at the area corresponding to the intersection of the third edge 133 and the fourth edge 134. In this way, a current path that cancels out each other can be formed in the area adjacent to the third edge 133, and a current path that cancels out each other can be formed in the area adjacent to the fourth edge, so as to reduce the influence on the electronic device frame antenna 21.

[0082] In the embodiment of the present application, by arranging multiple grounding points and feeding points on different edges of the metal decoration piece, multi-band coverage and MIMO function can be realized in limited physical space. The design of arranging multiple grounding points and feeding points on different edges of the metal decoration piece can improve the isolation between the metal decoration piece and the frame antenna, improve the overall performance of the system and reduce the cost.

[0083] In the current smart phone design, the metal decoration piece (deco) of the camera module often has a significant impact on the performance of the frame antenna due to the large size and special material of the metal decoration piece (deco).

[0084] Figure 7 And Figure 8 The position of the deco 11 in the mobile phone is shown, the deco 11 is a metal object, the metal frame around it is other antennas, and the deco is very close to multiple antennas on both sides, which has a great impact on these antennas. How to eliminate the influence of the metal deco on the antenna is a difficult problem.

[0085] To solve this problem and reasonably use the deco resources, the present scheme proposes a patch antenna structure based on multi-feeding design, which realizes the design idea of multiple antennas sharing the radiator without damaging the integrity of the deco.

[0086] Figure 6 The deco antenna scheme designed in the embodiment of the present application is shown, the deco antenna 11 has multiple grounding points (101, 103 and 102) on the edge close to the frame antenna 21, and is fed by the feeding point 111 and the feeding point 112 on the two edges away from the frame.

[0087] The patch antenna structure based on multi-feeding design not only effectively improves the isolation between antennas, but also reduces the number of combiners used in the radio frequency circuit, thereby improving the performance and efficiency of the overall antenna system.

[0088] Figure 9 A diversity filtering schematic diagram provided in the embodiment of the present application is shown as Figure 9As shown in the schematic diagram, the schematic diagram includes: an antenna radiator 11 and a filter circuit 12, wherein, The antenna radiator 11 corresponds to one antenna, that is, one radiation structure corresponds to one antenna feed point 1. When the conventional antenna covers multiple frequency bands, multiple duplexers are required, that is, three duplexers are arranged in the filter circuit 12 as shown. Figure 9 Arranging multiple duplexers will cause the matching to become complex. The insertion loss increases, and the cost increases.

[0089] Figure 10 A diversity filtering schematic diagram provided for an embodiment of the present application is as shown in the schematic diagram, Figure 10 As shown in the schematic diagram, the schematic diagram includes: an antenna radiator 11 and a filter circuit 12, wherein, The antenna radiator 11 corresponds to two antennas, that is, one radiation structure corresponds to two antenna feed points (antenna feed point 1 and antenna feed point 2). The antenna radiator 11 can reduce the use of combiners when covering multiple frequency bands, that is, two duplexers are arranged in the filter circuit 12 as shown. Figure 9 This is conducive to reducing the insertion loss of the antenna. When the two antennas are assigned frequency bands, the same frequency band cannot be assigned because the deco is not damaged, and the length and width dimensions of the deco are approximately equal, so the resonant frequencies of the two antennas are close to each other. If the same frequency band is assigned, the isolation will be very poor.

[0090] Figure 11 A schematic diagram of an S parameter curve without matching provided for an embodiment of the present application is as shown in the schematic diagram, Figure 11 As shown, because the two antennas share the radiator, the isolation near the frequency in the same mode is very poor, for example, the antenna isolation at frequency point f1 (2.431 GHz) is only -1.69 dB, at frequency point f2 (3.4834 GHz) is -4.5 dB, and at frequency point f3 (4.203 GHz) is only -7 dB. Especially, the isolation at f1 is the worst, which is the main mode of the two antennas, indicating that the current distribution of the main mode is similar.

[0091] Figure 12 A schematic diagram of the current distribution of the antenna base mode provided for an embodiment of the present application is as shown in the schematic diagram, Figure 12 As shown, the current distribution of antenna 1 (f=2.498 GHz) and antenna 2 (f=2.472 GHz) at the base mode. It can be seen from Figure 12 that the current distribution of the two antennas on the radiation branch is similar, which is the same mode. This causes the isolation between the two antennas to be very poor.

[0092] In the case of maintaining the integrity of deco, the method of frequency diversity is adopted to solve the problem of isolation between antennas. That is, different operating frequency bands are allocated to different antennas to avoid strong coupling caused by the same mode.

[0093] Through simulation and actual measurement verification, it is found that the isolation of the two antennas in the same mode is poor without matching, and the isolation of the two antennas in the same mode is only-1.69dB at f1, -4.5dB at f2, and -7dB at f3. After adding the filter and tuning circuit, it is observed that the isolation of the two antennas in the same mode is significantly improved to below-10dB, especially in the 2.4GHz Wi-Fi frequency band, the isolation is improved from-1.69dB to-18dB.

[0094] Figure 13 The schematic diagram of the S parameter curve provided by the embodiment of the present application with matching is shown in Figure 13 As shown, the isolation between the two antennas is below-10dB, and the worst isolation in the original 2.4G wifi is only-1.69dB, which is now improved to-18dB. The bandwidth of antenna 1 can cover GPS L1, wifi 5g, wifi6e frequency bands, and the bandwidth of antenna 2 can cover wifi 2.4g, sub6G n77 / 78 frequency bands.

[0095] Figure 14 The schematic diagram of the matching circuit provided by the embodiment of the present application is shown in Figure 14 As shown, the filter circuit 41 added on the antenna 2 and the tuning circuit 42 loaded on the antenna 1. The filter circuit 41 on the antenna 2 adjusts the fundamental mode of the antenna 2 to the GPS L1 frequency band, which improves the isolation of the antenna 1 in the fundamental mode and the n77 / 78 frequency band. The tuning circuit 42 is loaded on the antenna 1, and the standing wave of the antenna 1 above 5GHz is almost 0, which improves the isolation at high frequencies.

[0096] Multiple grounding points are designed on the side of the device shell close to the metal frame, which adopts the multi-point grounding mode to reduce the mutual interference between the device shell and the frame antenna. In addition, the design of multiple grounding points on the device shell also helps to form a current distribution mode unique to the device shell, so that the radiation hot spot is away from the frame area, thereby reducing the coupling effect.

[0097] According to the feature that the length-width ratio of deco is close, the positions of the feed point and the grounding point are reasonably selected, so that each antenna can cover different frequency bands, such as GPS L1, Wi-Fi 2.4GHz, 5GHz, Wi-Fi 6E and Sub-6G n77 / n78, etc., thereby meeting the multi-band communication demand.

[0098] By observing the current distribution diagrams, it can be seen that the two antennas have different current distribution modes in their respective working frequency bands, and the hot spot regions do not overlap as much as possible, which helps to further improve the isolation between the two antennas and reduce the interference on the frame antenna.

[0099] Figure 15 and Figure 16 respectively show the current modes of antenna 1 and antenna 2 at their respective working frequencies. It can be seen that by grounding at appropriate positions and setting the feed points of the antennas, and appropriate frequency allocation on the two antennas, the main current distribution of each frequency band is away from the frame antenna, and the current hot spots of the two antennas in each frequency band do not overlap as much as possible. This helps to reduce the coupling between the deco antenna and the metal frame. It helps to improve the isolation between the two antennas.

[0100] In summary, through multi-feed, multi-ground point design, and reasonable filtering and tuning means, efficient layout of multiple antennas sharing the radiator is achieved without damaging the deco. The problems of serious coupling and large insertion loss in the traditional method are solved. It has good engineering application prospect.

[0101] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The sequence number of the above embodiments of the present application is only for description, not representing the advantages and disadvantages of the embodiments.

[0102] It should be noted that in this document, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0103] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other manners. The embodiments described above are merely exemplary, and the unit division is merely a logical function division, and can be other division manners in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling, direct coupling, or communication connection between the components can be indirect coupling or communication connection through some interface, and can be electrical, mechanical, or in other forms.

[0104] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they can be located in one place, or distributed on a plurality of network units; and some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0105] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.

[0106] The features disclosed in several product embodiments provided in the present application can be combined arbitrarily without conflict to obtain new product embodiments.

[0107] The features disclosed in several product embodiments provided in the present application can be combined arbitrarily without conflict to obtain new product embodiments.

[0108] The above is merely an implementation manner of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A first radiator, wherein the first radiator is a polygonal planar radiator, and a first feed point, a second feed point, and a target grounding point are provided on the polygonal planar radiator; When the first feed point is in the working state, the first feed point and the target ground point form a first current path on the first edge of the first radiator to transmit and / or receive a first frequency band signal. When the second feed point is in the working state, the second feed point and the target ground point form a second current path on the second edge of the first radiator to transmit and / or receive a second frequency band signal. Wherein, the first edge and the second edge are different edges of the first radiator, the first current path and the second current path satisfy the orthogonal condition, and the first frequency band signal and the second frequency band signal are different.

2. The first radiator as described in claim 1, wherein the target grounding point includes a first grounding point and a second grounding point; When the first feed point is in operation, the first feed point and the first ground point form a first current path on the first edge of the first radiator to transmit and / or receive the first frequency band signal. When the second feed point is in operation, the second feed point and the second ground point form a second current path on the second edge of the first radiator to transmit and / or receive the second frequency band signal.

3. The first radiator as described in claim 2, The first distance between the first straight line formed by the first grounding point and the first feed point and the first edge is less than a first distance threshold. The second distance between the second straight line formed by the second grounding point and the second feed point and the second edge is less than the second distance threshold.

4. The first radiator as described in claim 1, When the first feed point is in operation, the first feed point and the target ground point can also form a third current path at the first edge to transmit and / or receive third frequency band signals. in, The length of the third current path is different from the length of the first current path.

5. An electronic device, the electronic device comprising a first radiator, the first radiator being a polygonal planar radiator, wherein a first feed point, a second feed point, and a target ground point are disposed on the polygonal planar radiator; When the first feed point is in the working state, the first feed point and the target ground point form a first current path on the first edge of the first radiator to transmit and / or receive a first frequency band signal. When the second feed point is in the working state, the second feed point and the target ground point form a second current path on the second edge of the first radiator to transmit and / or receive a second frequency band signal. Wherein, the first edge and the second edge are different edges of the first radiator, the first current path and the second current path satisfy the orthogonal condition, and the first frequency band signal and the second frequency band signal are different.

6. The electronic device of claim 5, further comprising a second radiator; The third distance between the second radiator and the third edge of the first radiator is less than a third distance threshold; The first feed point and the second feed point are located in the first region of the first radiator; The first region is the region far from the third edge.

7. The electronic device of claim 6, wherein the target grounding point includes a first grounding point and a third grounding point; The first grounding point and the third grounding point are respectively located in two regions corresponding to the two endpoints of the third edge; The third grounding point forms a current path that can cancel each other out based on the first grounding point.

8. The electronic device of claim 6, wherein a fourth current path can be formed on the second radiator; The third edge is adjacent to the first edge, and the first current path is orthogonal to the fourth current path.

9. The electronic device of claim 6, wherein the first radiator reuses a metal decorative piece disposed on the electronic device, and the second radiator is a frame antenna of the electronic device.

10. The electronic device of claim 9, wherein the target grounding point includes a first grounding point, a second grounding point, and a third grounding point; the first edge and the second edge of the metal decorative element intersect, the third edge and the fourth edge of the metal decorative element intersect, the first edge and the fourth edge are parallel, and the second edge and the third edge are parallel; The first grounding point and the first power supply point are located in the area corresponding to the first edge; The second grounding point and the second feed point are located in the area corresponding to the second edge; The third grounding point is located in the area corresponding to the intersection of the third edge and the fourth edge.

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