Electronic device

Abstract

The invention discloses electronic equipment. The electronic equipment comprises a feed source; the radiator comprises a first end and a second end, the first end is provided with a first grounding point, the first grounding point is used for grounding, a feeding point is arranged between the first grounding point and the second end, the feeding point is connected with the feed source, and the radiator is used for generating a first target resonance mode; an electric coupling gap is formed between the metal decoration part and the radiator, the metal decoration part comprises at least one grounding point, the at least one grounding point is used for grounding, and the metal decoration part is used for generating a second target resonance mode; the first target resonance mode supports a first target frequency band, the second target resonance mode supports a second target frequency band, the second target frequency band is close to the first target frequency band, and the second target frequency band is higher than the first target frequency band; the first target resonance mode is used for supporting the transceiving of a first target frequency band signal under the excitation of the feed source, and the second target resonance mode is used for supporting the transceiving of a second target frequency band signal under the excitation of the feed source.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and more specifically, to an electronic device. Background Art

[0002] With the rapid development of information technology, electronic devices (such as smart phones) are becoming more and more popular. As the functions of electronic devices become more and more powerful, their transmission power is also getting stronger, resulting in radiation effects on the human body. The radiation effects generated by electronic devices are usually measured by the specific absorption rate (SAR). The larger the SAR value, the greater the impact on the human body; conversely, the smaller the impact.

[0003] However, current solutions for reducing SAR all have certain limitations. Summary of the invention

[0004] The embodiment of the present application provides an electronic device. Various aspects involved in the embodiment of the present application are introduced below.

[0005] In a first aspect, an electronic device is provided, comprising: a feed source; a radiator, comprising a first end and a second end, the first end having a first grounding point, the first grounding point being used for grounding, a feeding point being arranged between the first grounding point and the second end, the feeding point being connected to the feed source, and the radiator being used to generate a first target resonance mode; a metal decorative part, forming an electrical coupling gap with the radiator, the metal decorative part comprising at least one grounding point, the at least one grounding point being used for grounding, and the metal decorative part being used to generate a second target resonance mode; the first target resonance mode supports a first target frequency band, the second target resonance mode supports a second target frequency band, the second target frequency band is close to the first target frequency band, and the second target frequency band is higher than the first target frequency band; the first target resonance mode is used to support the reception and transmission of signals in the first target frequency band under the excitation of the feed source, and the second target resonance mode is used to support the reception and transmission of signals in the second target frequency band under the excitation of the feed source.

[0006] The embodiment of the present application provides an electronic device, which utilizes electric field coupling between a metal decorative part close to a radiator and the radiator, and adjusts the resonant frequency band (second target frequency band) of the metal decorative part through at least one grounding point, so that the resonant frequency band is close to the resonant frequency band (first target frequency band) of the radiator, thereby helping to reduce the SAR value of the radiator in the target radiation direction. Furthermore, by reasonably setting at least one grounding point, the second target frequency band is higher than the first target frequency band, thereby enhancing the radiation efficiency of the radiator in the first target frequency band. That is, this solution can take into account both reducing the SAR value of the radiator and improving the radiation efficiency of the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of an electronic device provided in one embodiment of the present application.

[0008] Figure 2 It is a structural schematic diagram of an electronic device provided in another embodiment of the present application.

[0009] Figure 3 Schematic diagram of the S parameter curve of a radiator without metal decorative parts.

[0010] Figure 4 Schematic diagram of the S parameter curve of the radiator before and after adding metal decorative parts.

[0011] Figure 5 A schematic diagram of the radiation efficiency curve of the radiator before and after adding metal decorative parts. DETAILED DESCRIPTION

[0012] The following is a description of the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. In the following description, reference is made to the drawings that form a part of the present disclosure and show the specific aspects of the embodiments of the present application or the specific aspects of the embodiments of the present application in an illustrative manner. It should be understood that the embodiments of the present application can be used in other aspects and may include structural or logical changes not depicted in the drawings. Therefore, the following detailed description should not be understood in a restrictive sense, and the scope of the present application is defined by the appended claims. For example, it should be understood that the disclosure of the described method can be equally applicable to the corresponding device or system for performing the method, and vice versa. For example, if one or more specific method steps are described, the corresponding device may include one or more units such as functional units to perform the one or more method steps described (for example, one unit performs one or more steps, or multiple units, each of which performs one or more of the multiple steps), even if such one or more units are not explicitly described or illustrated in the drawings. On the other hand, for example, if a specific device is described based on one or more units such as functional units, the corresponding method may include a step to perform the functionality of the one or more units (e.g., a step to perform the functionality of the one or more units, or multiple steps, each of which performs the functionality of one or more of the multiple units), even if such one or more steps are not explicitly described or illustrated in the drawings. Further, it should be understood that, unless otherwise explicitly stated, the features of the various exemplary embodiments and / or aspects described herein may be combined with each other.

[0013] It should be noted that the electronic device mentioned in the embodiments of the present application can be any type of electronic device with wireless communication function. The electronic device can be a portable mobile terminal or a handheld mobile terminal. For example, the electronic device can be a foldable electronic device (such as a foldable mobile phone, a foldable tablet computer, etc.), a smart phone (mobile phone), a tablet computer (Pad), a laptop computer, a PDA, a mobile internet device (mobile internet device, MID), a wearable device, a virtual reality (virtual reality, VR) device, an augmented reality (augmented reality, AR) device, etc., and the present application does not make specific restrictions on this.

[0014] The electronic device in the embodiment of the present application may also be other handheld devices and devices such as watches, earphones, pendants, headphones, etc. The electronic device may also be other wearable devices (for example, such as electronic glasses, electronic clothes, electronic bracelets, electronic necklaces, electronic tattoos, electronic devices, smart watches or head mounted displays (head mount display, HMD), etc., which are not specifically limited in the present application.

[0015] With the rapid development of information technology, electronic devices are also undergoing continuous iteration and updating. Taking smartphones that support the fifth generation of mobile communication technology as an example, such electronic devices are leading users into the "supersonic" era of wireless communications with extremely high speeds, large capacities, and extremely low latency. At the same time, with the evolution of electronic devices represented by smartphones, the impact of electromagnetic radiation generated during the use of electronic devices on human health has also received increasing public attention.

[0016] The specific absorption rate (SAR) represents the amount of radiation that a living organism (including the human body) can absorb per unit kilogram. It is defined as the electromagnetic power absorbed or consumed by a unit mass of human tissue, and the unit is W / kg. The SAR value represents the impact of radiation on the human body and is the most direct test value. SAR has data for the whole body, local area, and limbs. The lower the SAR value, the less radiation is absorbed. According to the SAR specification, during the wireless communication transmission of the device, the accumulated radio frequency energy in the head or body shall not exceed a certain value. The radio frequency energy can be calculated by integrating the transmission power of the electronic device within a certain time window. SAR regulatory agencies in different countries and regions have slightly different requirements for SAR standards. The two current international standards are 1.6W / kg of the Federal Communications Commission (FCC) of the United States and 2.0W / kg of the European Union.

[0017] There are currently two mainstream solutions to reduce the SAR value of electronic devices. One is to reduce the SAR value by reducing the antenna conduction power. However, the lower transmission power will affect the communication quality and the user experience will be poor. The other is to use a low SAR antenna, that is, to reduce or disperse the hot spot intensity through reasonable antenna design (such as changing the antenna mode, adding grounding points or radiation branches, etc.), so as to achieve the purpose of reducing the SAR value. However, this will generally lead to a deterioration in antenna efficiency.

[0018] Therefore, how to balance reducing the SAR value of the antenna and improving the radiation efficiency of the antenna is a technical problem that needs to be solved urgently.

[0019] In order to solve the above problems, an embodiment of the present application provides an electronic device, which utilizes the electric coupling gap between the metal decorative part close to the radiator and the radiator for electric field coupling, and adjusts the resonant frequency band (second target frequency band) of the metal decorative part through at least one grounding point, so that the resonant frequency band is close to the resonant frequency band (first target frequency band) of the radiator, thereby helping to reduce the SAR value of the radiator in the target radiation direction. Furthermore, by reasonably setting at least one grounding point, the second target frequency band is higher than the first target frequency band, thereby enhancing the radiation efficiency of the radiator in the first target frequency band. That is, this solution can take into account both reducing the SAR value of the radiator and improving the radiation efficiency of the radiator.

[0020] Combined with the following Figure 1 The electronic device provided in the embodiment of the present application is described in detail. Figure 1 As shown, the electronic device 100 includes a feed source 110 , a radiator 120 and a metal decoration part 130 .

[0021] The feed source 110 may include but is not limited to a radio frequency transceiver chip and a radio frequency front-end circuit. The feed source 110 may be disposed on an antenna board or a main board (not shown) of the electronic device 100 .

[0022] The radiator 120 includes a first end 121 and a second end 122. The first end 121 has a first grounding point 123, and the first grounding point 123 is used for grounding. A feeding point 124 is provided between the first grounding point 123 and the second end 122, and the feeding point 124 is connected to the feed source 110. The radiator 120 is used to generate a first target resonance mode. An electric coupling gap 125 is formed between the metal decorative part 130 and the radiator 120. The metal decorative part 130 includes at least one grounding point 140, and at least one grounding point 140 is used for grounding. The metal decorative part 130 is used to generate a second target resonance mode. The radiator 120 can be electrically coupled with the metal decorative part 130 through the electric coupling gap 125. The first target resonance mode supports a first target frequency band, and the second target resonance mode supports a second target frequency band. The second target frequency band is close to the first target frequency band, and the second target frequency band is higher than the first target frequency band. The first target resonance mode is used to support the transmission and reception of the first target frequency band signal under the excitation of the feed source 110 , and the second target resonance mode is used to support the transmission and reception of the second target frequency band signal under the excitation of the feed source 110 .

[0023] In some embodiments, the feeding point 124 may be disposed between the first grounding point 123 and the second end 122 at an end close to the second end 122. The first end 121 is a grounding end of the radiator 120, and the second end 122 is a free end of the radiator 120.

[0024] In some embodiments, the radiator 120 may be a metal frame, a flexible printed circuit (FPC), a laser direct structuring (LDS) circuit board, etc., and the present application does not impose specific restrictions on this. When the radiator 120 is a metal frame 150 of the electronic device 100, the radiator 120 may be formed by slitting the metal frame 150. In other words, the radiator 120 is a part of the metal frame 150. In some embodiments, the radiator 120 may be an inverted F antenna.

[0025] It should be understood that Figure 1 This is only a simplified diagram of the electronic device 100. The actual electronic device 100 may also include Figure 1 The electronic device 100 may include more than the components shown. Figure 1 Fewer devices are shown.

[0026] In some embodiments, the electronic device 100 may further include at least one matching circuit (not shown in the figure). At least one matching circuit is connected to at least one grounding point 140, and at least one matching circuit is used to adjust the matching impedance of the metal decorative part 130 so that the metal decorative part 130 produces a second target resonance mode. Among them, at least one matching circuit can be a tuning circuit including a capacitor and / or an inductor. It should be understood that each matching circuit may include one or more capacitors, and / or, one or more inductors, and this application does not impose specific restrictions on this. The capacitance value of the capacitor and the inductance value of the inductor can be set according to the needs.

[0027] In some embodiments, the first target frequency band includes a first frequency band and a second frequency band, and the second target frequency band includes a third frequency band and a fourth frequency band; the third frequency band is close to the first frequency band and is higher than the first frequency band; the fourth frequency band is close to the second frequency band and is higher than the second frequency band.

[0028] In some embodiments, the third frequency band being close to the first frequency band may mean that at least part of the frequencies in the third frequency band overlap with the frequencies in the first frequency band, or that the center frequency of the third frequency band is close to the center frequency of the first frequency band. The fourth frequency band being close to the second frequency band may mean that at least part of the frequencies in the fourth frequency band overlap with the frequencies in the second frequency band, or that the center frequency of the fourth frequency band is close to the center frequency of the second frequency band. In this way, the metal decorative part 130 can be used to "disperse" the current on the radiator 120, thereby achieving the purpose of weakening the hot spot intensity, and further, helping to reduce the SAR value of the radiator 120.

[0029] In some embodiments, the third frequency band being higher than the first frequency band may mean that the center frequency of the third frequency band is higher than the center frequency of the first frequency band, and the fourth frequency band being higher than the second frequency band may mean that the center frequency of the fourth frequency band is higher than the center frequency of the second frequency band. In this way, it is possible to ensure that the electric field coupling current on the metal decorative part 130 and the current on the radiator 120 are currents in the same direction, thereby achieving the purpose of both reducing the SAR value of the radiator 120 and improving the radiation efficiency of the radiator 120. In other words, this solution can effectively prevent the electric field coupling current on the metal decorative part 130 from being reversed from the current on the radiator 120, thereby helping to avoid the efficiency "depression" phenomenon at the resonant frequency of the radiator 120.

[0030] It should be noted that the metal decoration part 130 in the embodiment of the present application can be regarded as a part of the radiator 120 , and the metal decoration part 130 can be called a parasitic radiator of the radiator 120 .

[0031] It is understandable that when the resonant frequency band (second target frequency band) generated by the metal decorative part 130 is brought close to the resonant frequency band (first target frequency band) of the radiator 120, the central resonant frequency of the metal decorative part 130 may be at the low frequency of the second target frequency band, or may be at the high frequency of the second target frequency band. The embodiment of the present application makes the central frequency point of the third frequency band the high frequency point of the first frequency band, and the central frequency point of the fourth frequency band the high frequency point of the second frequency band by designing at least one reasonable grounding point 140 (or at least one matching circuit and at least one grounding point 140), so that the radiation efficiency of the radiator 120 can be improved, and the SAR value of the radiator 120 can also be effectively reduced.

[0032] In some embodiments, the first target frequency band and the second target frequency band may be medium and high frequency bands. As an example, the first frequency band may be the B3 frequency band, and the second frequency band may be the B41 frequency band. Correspondingly, the third frequency band may be a frequency band near the B3 frequency band and higher than the B3 frequency band; the fourth frequency band may be a frequency band near the B41 frequency band and higher than the B41 frequency band.

[0033] Furthermore, the third frequency band can be a high frequency band of the first frequency band (B3 frequency band), or the center frequency of the third frequency band can be the high frequency frequency of the first frequency band; the fourth frequency band can be a high frequency band of the second frequency band (B41 frequency band), or the center frequency of the fourth frequency band can be the high frequency of the second frequency band.

[0034] It can be understood that the embodiment of the present application makes the second target frequency band close to the first target frequency band, and the second target frequency band is higher than the first target frequency band, which can not only take into account the reduction of the SAR value of the radiator 120 and the improvement of the radiation efficiency of the radiator 120, but also can widen the bandwidth of the first target frequency point. As an example, when the center frequency point of the third frequency band is the high frequency point of the first frequency band (for example, the B3 frequency band), the embodiment of the present application can use the radiator 120 and the metal decorative part 130 to transmit and receive signals in the B3 frequency band on the first frequency band and the third frequency band, thereby effectively widening the effective bandwidth of the radiated B3 frequency band signal. Similarly, the effective bandwidth of the second frequency band can also be increased.

[0035] In some embodiments, the currents on the radiator 120 and the metal decoration part 130 are currents in the same direction, so that the radiation energy on the metal decoration part 130 and the radiation energy on the radiator 120 can be superimposed in space, thereby helping to improve the radiation performance of the radiator 120 .

[0036] In some embodiments, the metal decorative part 130 may be a rear camera decorative part, an earpiece decorative part, etc., and this application does not impose any specific restrictions on this. Among them, the rear camera decorative part is a component used to fix the camera lens in the electronic device 100, such as a smart phone, and the earpiece decorative part is generally a dustproof net set at the earpiece of the electronic device 100. In some application scenarios, for the radiator 120, one or more metal decorative parts 130 that can form an electric field coupling with the radiator 120 can be selected to realize the electric field coupling function, and this application does not impose any specific restrictions on this.

[0037] In some embodiments, see Figure 2 , when the metal decorative part 130 is a rear camera decorative part, at least one grounding point 140 may include three grounding points, and the three grounding points are grounding point 141, grounding point 142 and grounding point 143. The resonant frequency of the metal decorative part 130 can be tuned through the three grounding points. In order to more effectively tune the resonant frequency of the metal decorative part 130, three matching circuits (not shown in the figure) can also be set, and the three matching circuits can be connected to the above-mentioned three grounding points respectively. The matching impedance of the metal decorative part 130 can be tuned by using the three matching circuits, so that the metal decorative part 130 generates the second target resonance mode mentioned above. Among them, each of the three matching circuits can be a passband and stopband circuit formed by a combination of capacitors and / or inductors.

[0038] In order to deepen the understanding of the scheme in the embodiment of this application, the following Figure 2-Figure 5 The scheme in the embodiments of the present application is illustrated in more detail.

[0039] Figure 3 is a schematic diagram of a possible S parameter curve of the radiator 120. Figure 3 It can be seen that the radiator 120 can be used to generate the first target resonance mode, which can include two resonance modes. The resonance frequency of one resonance mode is resonance point 1 (1.759, -7.6655), which can support the B3 frequency band (first frequency band); the resonance frequency of the other resonance mode is resonance point 2 (2.4927, -4.9524), which can support the B41 frequency band (second frequency band). In other words, the radiator 120 can support the transmission and reception of B3 frequency band and B41 frequency band signals under the excitation of the feed source 110.

[0040] It should be noted that the radiator 120 can also support the transmission and reception of B1 frequency band (1920MHz-2170MHz) signals under the excitation of the feed source 110. The following mainly takes B3 frequency band and B41 frequency band as examples for explanation.

[0041] To reduce Figure 3The SAR value of the radiator 120 is increased, and the radiation efficiency of the radiator 120 is increased. Figure 2 In the embodiment of the present application, a coupling electric field can be formed between the metal decorative part 130 (camera metal decorative part 130) close to the radiator 120 and the radiator 120, and through at least one grounding point 140 (or at least one matching circuit and at least one grounding point 140), the resonant frequency band of the metal decorative part 130 is close to the resonant frequency band of the radiator 120, and the resonant frequency band of the metal decorative part 130 is higher than the resonant frequency band of the radiator 120.

[0042] Figure 4 Schematic diagram of the S parameter curve of the antenna before and after the metal decorative part 130 is added. It should be understood that before the metal decorative part 130 is added, the S parameter curve of the antenna is the S parameter curve of the radiator 120; after the metal decorative part 130 is added, the S parameter curve of the antenna is the S parameter curve of "radiator 120 + metal decorative part 130"; see Figure 4 It can be seen that in the embodiment of the present application, through at least one grounding point 140 (or, at least one matching circuit and at least one grounding point 140), the metal decorative part 130 can generate a second target resonance mode, and the second target resonance mode can include two resonance modes. The resonance frequency of one resonance mode is resonance point 2 (2.1606, -18.592), and this resonance mode can support the third frequency band; the resonance frequency of the other resonance mode is resonance point 4 (2.6194, -9.3628), and this resonance mode can support the fourth frequency band. At this time, the resonance points generated by the radiator 120 are resonance point 1 (1.768, -6.1344) and resonance point 3 (2.4292, -5.9634), respectively. Under the excitation of the feed source 110, the radiator 120 can support the transmission and reception of signals in the B3 frequency band (first frequency band) and the B41 frequency band (second frequency band). Furthermore, it can be seen that the third frequency band is close to the first frequency band (B3 frequency band), and the third frequency band is higher than the first frequency band; the fourth frequency band is close to the second frequency band (B41 frequency band), and the fourth frequency band is higher than the second frequency band. In addition, it can be seen that after adding the metal decorative part 130, the B3 available bandwidth supported by the antenna is significantly increased, and the B41 available bandwidth is also significantly increased.

[0043] In order to verify the effect of the solution in the embodiment of the present application, Figure 5 Detailed examples are given in Table 1.

[0044] Figure 5 FIG. 1 is a schematic diagram of a radiation efficiency curve of the radiator 120 before and after the metal decorative member 130 is added. Figure 5As shown, after adding the metal decorative part 130, the radiation efficiency of the radiator 120 in the B3 frequency band (1710MHz-1880MHz) remains basically unchanged, and the radiation efficiency in the B41 frequency band (2496MHz-2690MHz) is significantly improved.

[0045] In order to compare the radiation efficiency change of the radiator 120 before and after the metal decorative part 130 is added in more detail, and the SAR value change of the radiator 120 in different directions (such as the left side, rear side and front side of the electronic device 100), the present application is for Figure 5 In addition, this application also summarizes the radiation efficiency and SAR value data at the B1 frequency band (1920MHz-2170MHz). See Table 1 below for details.

[0046] Table 1

[0047]

[0048] According to Table 1 above, it can be seen that compared with the radiator without metal decorative parts 130, the radiation efficiency of the radiator 120 with metal decorative parts 130 is increased by an average of 0.7dB, and the maximum increase is 1.5dB (in the B41 frequency band), and the radiation efficiency of the radiator 120 is significantly enhanced. The total radiated power (TRP) and SAR value data of the radiator with metal decorative parts 130 are normalized. Taking B3 as an example, the normalization process can refer to: normalizing the total radiated power (19.1dBm) of the radiator 120 with metal decorative parts 130 to the total radiated power (19.2dBm) of the radiator 120 without metal decorative parts 130. Furthermore, the SAR value (2.12) on the left side of the radiator 120 with metal decorative parts 130 will be normalized to 2.17. After normalization, compared with the radiator 120 without the metal decorative part 130 , the SAR values ​​of the radiator 120 with the metal decorative part 130 on the left side / rear side / front side are reduced by 23.84%-29.42% on average, and the SAR reduction effect is very obvious.

[0049] According to the above content, it can be seen that this solution cleverly utilizes the metal decorative parts of the camera (which can also be a bracket steel sheet, or metal parts such as FPC) close to the radiator 120 (such as the mobile phone frame antenna), without adding extra costs, by designing a reasonable grounding point, adjusting the structure of the camera decorative parts and the grounding circuit, and tuning the coupling resonance generated by the camera decorative parts to the vicinity of the first target frequency band (i.e., B3 and B41), and by "dispersing" the current, the purpose of weakening the intensity of the hot spot is achieved, thereby reducing the SAR value. Adjusting the coupling resonance to the vicinity of the first target frequency band and to a higher frequency can enhance the efficiency within the first target frequency band. In this way, this solution can take into account both reducing the SAR value of the radiator 120 and improving the radiation efficiency of the radiator 120.

[0050] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0051] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0053] In the several embodiments provided in the present application, it should be understood that the disclosed systems and devices can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0054] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0055] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0056] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0057] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: Feeds; A radiator, comprising a first end and a second end, wherein the first end has a first grounding point, the first grounding point is used for grounding, a feeding point is provided between the first grounding point and the second end, the feeding point is connected to the feed source, and the radiator is used for generating a first target resonance mode; a metal decorative piece, forming an electrical coupling gap with the radiator, the metal decorative piece comprising at least one grounding point, the at least one grounding point being used for grounding, and the metal decorative piece being used for generating a second target resonance mode; The first target resonance mode supports a first target frequency band, the second target resonance mode supports a second target frequency band, the second target frequency band is close to the first target frequency band, and the second target frequency band is higher than the first target frequency band; The first target resonance mode is used to support the transmission and reception of the first target frequency band signal under the excitation of the feed source, and the second target resonance mode is used to support the transmission and reception of the second target frequency band signal under the excitation of the feed source.

2. The electronic device according to claim 1, characterized in that: The electronic device further comprises: At least one matching circuit is connected to the at least one grounding point, and the at least one matching circuit is used to adjust the matching impedance of the metal decorative part so that the metal decorative part generates the second target resonance mode.

3. The electronic device according to claim 2, characterized in that: The at least one matching circuit is a tuning circuit including a capacitor and / or an inductor.

4. The electronic device according to claim 1, characterized in that: The first target frequency band includes a first frequency band and a second frequency band, and the second target frequency band includes a third frequency band and a fourth frequency band; the third frequency band is close to the first frequency band, and the third frequency band is higher than the first frequency band; the fourth frequency band is close to the second frequency band, and the fourth frequency band is higher than the second frequency band.

5. The electronic device according to claim 4, characterized in that: The center frequency point of the third frequency band is higher than the center frequency point of the first frequency band, and the center frequency point of the fourth frequency band is higher than the center frequency point of the second frequency band.

6. The electronic device according to claim 5, characterized in that: The center frequency point of the third frequency band is the high frequency point of the first frequency band, and / or the center frequency point of the fourth frequency band is the high frequency point of the second frequency band.

7. The electronic device according to claim 4, characterized in that: The first frequency band is a B3 frequency band, and the second frequency band is a B41 frequency band.

8. The electronic device according to claim 1, characterized in that: The metal decorative piece is a metal decorative piece for a rear camera in the electronic device.

9. The electronic device according to claim 8, characterized in that: The at least one grounding point is three grounding points.

10. The electronic device according to claim 1, characterized in that: The radiator is a metal frame, FPC or LDS.

11. The electronic device according to claim 10, characterized in that: The radiator is a metal frame, and the radiator is formed by slits in the metal frame.

12. The electronic device according to any one of claims 1 to 11, characterized in that: The first target frequency band and the second target frequency band are medium and high frequency bands.

13. The electronic device according to any one of claims 1 to 11, characterized in that: The current on the radiator and the metal decorative part is in the same direction.

14. The electronic device according to any one of claims 1 to 11, characterized in that: The radiator is an inverted-F antenna.

Images