Antenna structure and electronic device having the same

Abstract

The present application provides an antenna structure of an electronic device, including a first radiating part, a second radiating part and an antenna module. The first radiating part and the second radiating part are arranged at intervals and are both composed of a part of the metal frame of the electronic device. The antenna module is arranged on the inner side of the metal frame and is arranged at intervals from the metal frame, the first radiating part and the second radiating part. The projection of the antenna module in a preset direction at least partially overlaps with the projection of the first radiating part and / or the second radiating part in a preset direction. The antenna module, the first radiating part and the second radiating part jointly excite multiple radiation modes. The antenna structure can excite multiple radiation modes and is not limited by the influence of metal environments such as high screen-to-body ratio screens and high metal coverage, thereby effectively and significantly improving bandwidth and efficiency. The present application also provides an electronic device having the antenna structure.

Description

Technical Field

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

[0002] With the advancement of wireless communication technology, electronic devices such as mobile phones and personal digital assistants are constantly developing towards diversified functions, thinner and lighter, and faster and more efficient data transmission. However, the space available for accommodating antennas is getting smaller and smaller, and with the continuous development of wireless communication technology, the bandwidth requirements for antennas are increasing. Therefore, how to design an antenna with wider bandwidth and better efficiency in a limited space is an important issue facing antenna design. Summary of the invention

[0003] The present application provides an antenna structure and an electronic device having the antenna structure, which can improve bandwidth and achieve optimal antenna efficiency.

[0004] An antenna structure of an electronic device includes a first radiating portion, a second radiating portion and an antenna module, wherein the first radiating portion and the second radiating portion are spaced apart and are both formed by a partial metal frame of the electronic device, the antenna module is disposed on the inner side of the metal frame and is spaced apart from the metal frame, the first radiating portion and the second radiating portion, a projection of the antenna module in a preset direction at least partially overlaps with a projection of the first radiating portion and / or the second radiating portion in the preset direction, and the antenna module, the first radiating portion and the second radiating portion jointly excite multiple radiation modes.

[0005] An electronic device comprises the antenna structure mentioned above.

[0006] The above antenna structure and the electronic device having the antenna structure can stimulate multiple radiation modes and are not limited by the influence of metal environments such as high screen-to-body ratio screens and high metal coverage rates, thereby effectively and significantly improving bandwidth and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of an antenna structure provided in an embodiment of the present application being applied to an electronic device;

[0008] Figure 2 A schematic diagram of applying the antenna structure provided in an embodiment of the present application to another electronic device;

[0009] Figure 3 A schematic diagram of applying the antenna structure provided in an embodiment of the present application to another electronic device;

[0010] Figure 4 A schematic side view of an electronic device provided in an embodiment of the present application;

[0011] Figure 5 Another side view of the electronic device provided by the embodiment of the present application;

[0012] Figure 6 for Figure 5 A schematic diagram of the electronic device shown at another angle;

[0013] Figure 7 for Figure 5 A schematic cross-sectional view of the antenna structure shown;

[0014] Figure 8 for Figure 5 Another schematic diagram of the electronic device shown;

[0015] Fig. 9 A schematic diagram of the current flow of the antenna structure provided in an embodiment of the present application;

[0016] Fig.10 A graph of S parameters (scattering parameters) of the first radiating portion and the second radiating portion in the antenna structure provided in an embodiment of the present application;

[0017] Fig.11 A total efficiency curve diagram of the first radiating portion and the second radiating portion in the antenna structure provided in an embodiment of the present application;

[0018] Fig.12 A graph showing the S parameters (scattering parameters) of the antenna module in the antenna structure provided in an embodiment of the present application;

[0019] Fig.13 A total efficiency curve diagram of the antenna module in the antenna structure provided in an embodiment of the present application;

[0020] Fig.14 A 2D radiation pattern diagram when the antenna module in the antenna structure provided in an embodiment of the present application operates in a 28 GHz mode;

[0021] Fig.15 A 3D radiation pattern diagram when the antenna module in the antenna structure provided in an embodiment of the present application operates in a 28 GHz mode;

[0022] Fig.16 A 2D radiation pattern diagram when the antenna module in the antenna structure provided in an embodiment of the present application operates in a 39 GHz mode;

[0023] Fig.17 A 3D radiation pattern diagram when the antenna module in the antenna structure provided in an embodiment of the present application operates in a 39 GHz mode;

[0024] Fig.18A graph showing the cumulative distribution function of the actual gain (Realized Gain) of the antenna module in the antenna structure provided in an embodiment of the present application.

[0025] Main component symbols

[0026]

[0027]

[0028] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the present application. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0031] It should be understood that, in this application, unless otherwise specified, " / " means or. For example, A / B can mean A or B. "A and / or B" in this application is only a description of the association relationship of the associated objects, indicating that there can be three relationships: only A exists, only B exists, and A and B exist.

[0032] It should be noted that, in the embodiments of the present application, words such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. Features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way.

[0033] It should be noted that, in the embodiments of the present application, the term "height" refers to the projection length in the direction perpendicular to the reference stratum. The terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application.

[0034] Please also read Figures 1 to 3 It can be understood that the embodiment of the present application provides an antenna structure 100, which can be applied to an electronic device 200 to transmit and receive radio waves to transmit and exchange wireless signals. The electronic device 200 can be a handheld communication device (such as a mobile phone), a folding machine, a smart wearable device (such as a watch, a headset, etc.), a tablet computer, a personal digital assistant (PDA), etc., and is not specifically limited here.

[0035] For example, Figure 1 The antenna structure 100 can be applied to an electronic device 200, and the electronic device 200 is a mobile phone. Figure 2 The antenna structure 100 can be applied to an electronic device 200, and the electronic device 200 is a watch. Figure 3 The antenna structure 100 can be applied to an electronic device 200, which is a tablet computer. Figures 1 to 3 , the antenna structure 100 can be arranged in the area 200a shown in the figure. The area 200a is the position or area where the electronic device 200 is provided with a gap 200b.

[0036] It can be understood that the electronic device 200 can adopt one or more of the following communication technologies: Bluetooth (BT) communication technology, global positioning system (GPS) communication technology, wireless fidelity (Wi-Fi) communication technology, global system for mobile communications (GSM) communication technology, wideband code division multiple access (WCDMA) communication technology, long term evolution (LTE) communication technology, 5G communication technology, SUB-6G communication technology and other future communication technologies.

[0037] In the embodiment of the present application, the electronic device 200 is taken as an example to be described as a mobile phone.

[0038] Please also read Figure 4 In one embodiment, the electronic device 200 at least includes a housing 201 and a display unit 202. The housing 201 at least includes a frame 203 and a back panel 204 (see Figure 5 The frame 203 is made of metal or other conductive materials. A notch 205 is formed on the frame 203.

[0039] Please also read Figure 5 The back plate 204 can be made of metal or other conductive materials. The frame 203 is arranged at the edge of the back plate 204 and forms a receiving space 206 together with the back plate 204 (see Figure 6 ). An opening (not shown) is provided on one side of the frame 203 relative to the back plate 204 for accommodating the display unit 202. The display unit 202 has a display plane, which is exposed in the opening. It can be understood that the display unit 202 can be combined with a touch sensor to form a touch screen. A touch sensor can also be called a touch panel or a touch-sensitive panel.

[0040] It can be understood that in the embodiment of the present application, the display unit 202 has a high screen-to-body ratio. That is, the display plane area of ​​the display unit 202 is greater than 70% of the front area of ​​the electronic device, and can even be a full screen on the front. Specifically, in the embodiment of the present application, the full screen means that except for the necessary slots opened on the antenna structure 100, the left side, right side, and bottom side of the display unit 202 can be seamlessly connected to the frame 203.

[0041] Please refer again Figure 4In one embodiment, the antenna structure 100 includes an antenna module 11. The antenna module 11 is disposed in the housing 201 and corresponds to the notch 205.

[0042] It can be understood that in one embodiment, the antenna module 11 can be a 5G millimeter wave (mmWave) antenna, which can excite the 28 GHz frequency band of the 28 GHz mode (frequency range 27.5-28.35 GHz) and the 39 GHz frequency band of the 39 GHz mode (frequency range 37-40 GHz).

[0043] It is understood that in one embodiment, the antenna module 11 is spaced apart from the frame 203. For example, in one embodiment, the antenna module 11 can be parallel to the frame 203 and spaced apart. For another example, in another embodiment, the antenna module 11 can be non-parallel to the frame 203 and spaced apart. It is understood that the distance between the antenna module 11 and the frame 203 can be adjusted according to the frequency.

[0044] It can be understood that in one embodiment, the antenna module 11 is arranged corresponding to the notch 205, and the notch 205 can be filled with insulating materials, such as plastic, rubber, glass, wood, ceramic, etc., but not limited thereto. In addition, the notch 205 can shield or partially shield the antenna module 11. For example, in one embodiment, the size of the notch 205 is greater than or equal to the size of the antenna module 11, and the projection of the notch 205 in the first direction (such as the z-axis direction shown in the figure) completely shields the projection of the antenna module 11 in the first direction. At this time, the metal part of the frame 203 (such as the first part 207 and / or the second part 208) does not shield the antenna module 11. In another embodiment, the size of the notch 205 is smaller than the size of the antenna module 11, and the projection of the notch 205 in the first direction partially shields the projection of the antenna module 11 in the first direction. At this time, the metal part of the frame 203 (such as the first part 207 and / or the second part 208) also shields part of the antenna module 11. Alternatively, in another embodiment, although the size of the notch 205 is greater than or equal to the size of the antenna module 11, the projection of the notch 205 in the first direction only partially shields the projection of the antenna module 11 in the first direction. In this case, the metal portion of the frame 203 (e.g., the first portion 207 and / or the second portion 208) also shields a portion of the antenna module 11.

[0045] Understandable, please refer to Figure 5In the embodiment of the present application, the frame 203 is further provided with the slit 200b. The slit 200b partitions the frame 203 to divide the frame 203 into a first portion 207 and a second portion 208 that are spaced apart. In one embodiment, the slit 200b may be connected to the notch 205 and filled with insulating material, such as plastic, rubber, glass, wood, ceramic, etc., but not limited thereto. It is understood that in one embodiment, the width of the slit 200b is approximately 1 mm-2 mm.

[0046] It can be understood that in the embodiment of the present application, the first part 207 and the second part 208 may not be used as independent antenna radiators. When the first part 207 and the second part 208 do not serve as independent antenna radiators, the antenna module 11 can couple the signal to the first part 207 and the second part 208, that is, the first part 207 and the second part 208 are radiated in a coupled manner. That is, the first part 207 and the second part 208 serve as coupled radiators. Of course, in the embodiment of the present application, the coupling distance between the first part 207 and the second part 208 and the antenna module 11 can be adjusted according to the required impedance to achieve maximum bandwidth and optimal efficiency.

[0047] It can be understood that in other embodiments, the first portion 207 and the second portion 208 may be provided with corresponding feeding sources to serve as independent radiators (see details below) and thus operate in corresponding frequency bands.

[0048] Of course, in other embodiments, the first portion 207 and the second portion 208 may not directly serve as radiators, that is, they do not participate in the coupling and radiation of signals.

[0049] Please also read Figure 6 and Figure 7 ,in, Figure 6 FIG. 2 is a schematic diagram of the electronic device 200 at another angle. Figure 7 2 is a schematic cross-sectional view of the electronic device 200. In the embodiment of the present application, the housing 201 in the electronic device 200 further includes a ground plane 209 and a middle frame 210.

[0050] The ground plane 209 can be made of metal or other conductive materials. The ground plane 209 can be disposed in the accommodation space 206 enclosed by the frame 203 and the back plate 204 , and connected to the back plate 204 .

[0051] The middle frame 210 is made of metal or other conductive materials. The shape and size of the middle frame 210 may be slightly smaller than the ground plane 209. The middle frame 210 is stacked on the ground plane 209. In this embodiment, the middle frame 210 is a metal sheet disposed between the display unit 202 and the ground plane 209. The middle frame 210 is used to support the display unit 202, provide electromagnetic shielding, and improve the structural strength of the electronic device 200.

[0052] It can be understood that in this embodiment, the frame 203, the back plate 204, the ground plane 209 and the middle frame 210 can form an integrally formed metal frame. The back plate 204, the ground plane 209 and the middle frame 210 are large-area metals, and thus can together form the system ground plane of the antenna structure 100 (not shown).

[0053] It can be understood that in other embodiments, the electronic device 200 may also include one or more of the following components, such as a processor, a circuit board, a memory, a power supply component, an input and output circuit, an audio component (such as a microphone and a speaker, etc.), a multimedia component (such as a front camera and / or a rear camera), a sensor component (such as a proximity sensor, a distance sensor, an ambient light sensor, an acceleration sensor, a gyroscope, a magnetic sensor, a pressure sensor and / or a temperature sensor, etc.), etc., which are not elaborated here.

[0054] Please also read Figure 8 In the embodiment of the present application, the antenna structure 100 further includes at least a first feeding source 12 , a connecting portion 13 , a switching unit 14 , a second feeding source 15 and a grounding portion 16 .

[0055] It can be understood that in the embodiment of the present application, the first feed source 12 is a monopole antenna feed source. The first feed source 12 is arranged on the inner side of the first part 207. One end of the first feed source 12 can be electrically connected to the first part 207 by means of a spring, a microstrip line, a strip line, a coaxial cable, etc., so as to feed a current signal to the first part 207, so that the first part 207 constitutes a corresponding antenna radiator. The other end of the first feed source 12 is electrically connected to the system ground plane, that is, grounded.

[0056] The connecting portion 13 is arranged on the inner side of the first part 207. The connecting portion 13 can be a grounding portion or a middle band conditioner (MBC). The MBC can be an inductor and / or a capacitor. The connecting portion 13 is arranged at a position of the first part 207 close to the gap 200b. One end of the connecting portion 13 is electrically connected to the first part 207, and the other end is electrically connected to the system ground plane, i.e., grounded. When the connecting portion 13 is an MBC, it is used to adjust the intermediate frequency band of the first part 207 and greatly improve its bandwidth and antenna efficiency.

[0057] The switching unit 14 is disposed inside the first portion 207. The switching unit 14 is spaced apart from the first feeding source 12 and the connecting portion 13, and is disposed on a side of the first feeding source 12 away from the connecting portion 13. One end of the switching unit 14 is electrically connected to the first portion 207. The other end of the switching unit 14 is electrically connected to the system ground plane, i.e., grounded, for switching various low-frequency modes of the first portion 207.

[0058] The second feed source 15 is a monopole antenna feed source. The second feed source 15 is disposed inside the second portion 208. One end of the second feed source 15 can be electrically connected to the second portion 208 by means of a spring, a microstrip line, a strip line, a coaxial cable, etc., to feed a current signal to the second portion 208, so that the second portion 208 constitutes a corresponding antenna radiator. The other end of the second feed source 15 is electrically connected to the system ground plane, i.e., grounded.

[0059] The grounding portion 16 is disposed inside the second portion 208. The grounding portion 16 is located between the connecting portion 13 and the second feeding source 15, and is closer to the gap 200b than the second feeding source 15. One end of the grounding portion 16 is electrically connected to the second portion 208, and the other end is electrically connected to the system ground plane (i.e., ground), so as to provide grounding for the second portion 208.

[0060] It can be understood that in the embodiment of the present application, the antenna module 11 is in the second direction (the second direction is perpendicular to the first direction, for example Figure 5 The projection in the x-axis direction shown in FIG. 2 at least partially overlaps with the projection of the first portion 207 and / or the second portion 208 in the second direction. Figure 6 In one embodiment, the projection of the antenna module 11 in the second direction completely overlaps with the projection of the second portion 208 in the second direction. Figure 8In another embodiment, the projection of the antenna module 11 in the second direction overlaps with the projections of the first portion 207 and the second portion 208 in the second direction. That is, in the second direction, the first portion 207 and / or the second portion 208 may shield the antenna module 11.

[0061] Understandable, please refer to Fig. 9 , is a current path diagram of the antenna structure 100. As mentioned above, the antenna module 11 operates in 28 GHz mode and 39 GHz mode. Specifically, the antenna module 11 can be provided with 14 scanning beams, for example, 7 horizontal polarizations plus 7 vertical polarizations steer at 0 degrees, + / -15 degrees, + / -30 degrees and + / -45 degrees, so as to operate in 28 GHz mode and 39 GHz mode.

[0062] The first portion 207 constitutes the first radiating portion of the antenna structure 100, and the first radiating portion is a monopole antenna. When current is fed from the first feeding source 12, the current will be fed into the first portion 207 through a first matching circuit (not shown), and the current will flow to the slot 200b (see path P1) through the switching unit 14, thereby exciting a first working mode to generate a radiation signal of a first radiation frequency band.

[0063] When current is fed from the first feeding source 12, the current is fed into the first part 207 via the first matching circuit, and the current flows to the connecting portion 13 (see path P2) via the switching unit 14, thereby exciting a second working mode to generate a radiation signal in a second radiation frequency band.

[0064] When current is fed from the first feeding source 12 , the current is fed into the first portion 207 via the first matching circuit and flows through the connecting portion 13 and the switching unit 14 (see path P3 ), thereby exciting a third working mode to generate a radiation signal in a third radiation frequency band.

[0065] In addition, when current is fed from the first feeding source 12 , the current will flow through the connecting portion 13 (see path P4 ), thereby exciting a fourth working mode to generate a radiation signal in a fourth radiation frequency band.

[0066] In an embodiment of the present application, the first working mode is the LTE-A low frequency mode. The frequency of the first radiation frequency band is 700-960MHz. The second working mode includes the LTE-A medium frequency mode and the LTE-A high frequency mode. The frequencies of the second radiation frequency band include 1710-2170MHz and 2300-2690MHz. The third working mode includes the ultra-high frequency mode, the 5G N77 mode and the 5G N78 mode. The frequencies of the third radiation frequency band include 3400-3800MHz, 3300-4200MHz, 3300-3800MHz, that is, 3300-4200MHz. The fourth working mode includes the 5G N79 mode. The frequencies of the fourth radiation frequency band include 4400-5000MHz.

[0067] That is, in the embodiment of the present application, path P1 is the radiation current path of the LTE-A low frequency mode. Path P2 is the radiation current path of the high frequency mode in LTE-A. Path P3 is the radiation current path of the ultra-high frequency mode, 5G N77 mode and 5G N78 mode. Path P4 is the radiation current path of the 5G N79 mode.

[0068] Understandable, please refer to Figure 8 The second portion 208 constitutes the second radiating portion of the antenna structure 100, and the second radiating portion is a loop antenna. When current is fed from the second feeding source 15, the current will be fed into the second portion 208 through a second matching circuit (not shown), and the feeding current flows through the end of the second portion 208 (e.g., the right end in the figure) to the slot 200b (see path P5), thereby exciting a fifth working mode to generate a radiation signal of the fifth radiation frequency band.

[0069] When current is fed from the second feeding source 15, the current is fed into the second portion 208 through the second matching circuit. The second portion 208 flows through the ground portion 16 and flows to the slot 200b (see path P6), thereby exciting a sixth working mode to generate a radiation signal in a sixth radiation frequency band.

[0070] When current is fed from the second feed source 15, the current will be fed into the second part 208 through the second matching circuit, and flow through the second part 208 to the end of the second part 208 (for example, the right end in the figure, see path P7), thereby exciting a seventh working mode to generate a radiation signal in the seventh radiation frequency band.

[0071] In an embodiment of the present application, the fifth working mode includes a global positioning system (GPS) mode. The frequency of the fifth radiation frequency band is 1575 MHz. The sixth working mode is a WIFI 2.4 GHz mode. The frequency of the sixth radiation frequency band is 2400-2484 MHz. The seventh working mode is a WIFI 5 GHz mode. The frequencies of the seventh radiation frequency bands are all 5150-5850 MHz. That is, path P5 is a radiation current path of the GPS mode. Path P6 is a radiation current path of the WIFI 2.4 GHz mode. Path P7 is a radiation current path of the WIFI 5 GHz mode.

[0072] Fig.10 1 is a graph of S parameters (scattering parameters) of the first radiating portion and the second radiating portion in the antenna structure 100. Curve S101 is the S11 value of the first radiating portion, and curve S102 is the S11 value of the second radiating portion.

[0073] Fig.11 1 is a total efficiency curve diagram of the first radiating portion and the second radiating portion in the antenna structure 100. Curve S111 is the total efficiency value of the first radiating portion, and curve S112 is the total efficiency value of the second radiating portion.

[0074] Fig.12 is a graph of S parameters (scattering parameters) of the antenna module 11 in the antenna structure 100. Curve S121 is the S11 value when the antenna module 11 works in the 28 GHz mode. Curve S122 is the S11 value when the antenna module 11 works in the 39 GHz mode.

[0075] Fig.13 is a total efficiency curve of the antenna module 11 in the antenna structure 100. Curve S131 is the total efficiency value of the antenna module 11 when it works in the 28 GHz mode. Curve S132 is the total efficiency value of the antenna module 11 when it works in the 39 GHz mode.

[0076] Please also read Fig.14 and Fig.15 , which are respectively the 2D radiation pattern and the 3D radiation pattern when the antenna module 11 in the antenna structure 100 works in the 28 GHz mode.

[0077] Please also read Fig.16 and Fig.17 , which are respectively the 2D radiation pattern and the 3D radiation pattern when the antenna module 11 in the antenna structure 100 works in the 39 GHz mode.

[0078] Please also read Fig.18, is a graph of the Cumulative Distribution Function (CDF) of the measured gain (Realized Gain) of the antenna module 11 in the antenna structure 100. Curve S181 is a graph of the Cumulative Distribution Function (CDF) of the measured gain (Realized Gain) when the antenna module 11 in the antenna structure 100 works in the 28 GHz mode. Curve S182 is a graph of the Cumulative Distribution Function (CDF) of the measured gain (Realized Gain) when the antenna module 11 in the antenna structure 100 works in the 39 GHz mode.

[0079] Table 1 Correspondence table of measured gain cumulative distribution function

[0080]

[0081] Obviously, the antenna structure 100 can effectively improve the bandwidth and have the best antenna efficiency. The antenna structure 100 can cover low, medium, high frequency, ultra-high frequency, 5G N77, 5G N78, 5G N79, GPS, Wi-Fi 2.4G, Wi-Fi 5G, 5G 28GHz and 5G 39GHz frequency bands, and greatly improve its bandwidth and antenna efficiency, and can also cover global frequency band applications and support LTE-A carrier aggregation (CA) requirements.

[0082] That is to say, the antenna structure 100 can generate various different working modes, such as low-frequency mode, medium-frequency mode, high-frequency mode, ultra-high-frequency mode, 5G N77, 5G N78, 5G N79, GPS, Wi-Fi 2.4G, Wi-Fi 5G, 5G 28GHz and 5G 39GHz modes, covering the commonly used communication frequency bands in the world. Specifically, the antenna structure 100 can cover GSM850 / 900 / WCDMA Band5 / Band8 / Band13 / Band17 / Band20 at low frequency, GSM 1800 / 1900 / WCDMA 2090 (1710-2170MHz) at medium frequency, LTE-A Band7, Band40, Band41 (2300-2690MHz) at high frequency, 3400-3800MHz at ultra-high frequency, and 5G new spectrum ranges including N77 (3300-4200MHz), N78 (3300-3800MHz) and N79 (4400-5000MHz). It can also cover GPS (1575MHz), Wi-Fi 2.4G (2400-2484MHz) and Wi-Fi 5G (5150-5850MHz). The design frequency band of the antenna structure 100 can be applied to the operation of GSM Qual-band, UMTS Band I / II / V / VIII frequency bands and the commonly used LTE 850 / 900 / 1800 / 1900 / 2090 / 2300 / 2500 frequency bands worldwide. The antenna structure 100 is also combined with a millimeter wave (mmWave) antenna module 11, and the 5G mmWave antenna module 11 is placed in the inner area of ​​the breakpoint (i.e., the gap 200b) between the two antenna radiators (i.e., the first part 207 and the second part 208), and the projection of the antenna module 11 in a certain direction is at least partially overlapped with the projection of the first part 207 and / or the second part 208 in the said direction, that is, the first part 207 and / or the second part 208 shield the antenna module 11. The antenna module 11 can cover the 28 GHz frequency band and the 39 GHz frequency band (frequency range 27.5-28.35 GHz and 37-40 GHz), and is not limited by metal environments such as high screen-to-body ratio screens and high metal coverage, thereby effectively and significantly improving bandwidth and efficiency.

[0083] Of course, in the embodiment of the present application, the antenna structure 100 is not limited to the above-mentioned frequency band. Specifically, the shape, length and / or width of the antenna structure 100 can be adjusted according to the required frequency. That is, the working frequency band of the antenna structure 100 can be achieved by adjusting its shape, length and / or width parameters according to specific needs.

[0084] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application is described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solution of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application. Those skilled in the art can also make other changes within the spirit of the present application and use them in the design of the present application, as long as they do not deviate from the technical effects of the present application. These changes made in accordance with the spirit of the present application should be included in the scope of protection claimed in the present application.

Claims

1. An antenna structure of an electronic device, characterized in that: The antenna structure includes a first radiating part, a second radiating part and an antenna module, the first radiating part and the second radiating part are arranged at intervals and are both composed of a part of the metal frame of the electronic device, the antenna module is arranged on the inner side of the metal frame, and is arranged at intervals from the metal frame, the first radiating part and the second radiating part, the projection of the antenna module in a preset direction at least partially overlaps with the projection of the first radiating part and / or the second radiating part in the preset direction, the antenna module, the first radiating part and the second radiating part jointly excite multiple radiation modes; a notch is provided on the metal frame, the notch is filled with insulating material and is arranged corresponding to the antenna module; a slit is also provided on the metal frame, the slit is connected to the notch and separates the metal frame to divide the first radiating part and the second radiating part from the metal frame; the projection of the notch in a first direction perpendicular to the preset direction at least partially shields the projection of the antenna module in the first direction.

2. The antenna structure according to claim 1, characterized in that: The antenna module is a 5G millimeter wave (mmWave) antenna, which is used to excite 28 GHz mode and 39 GHz mode.

3. The antenna structure according to claim 1, wherein: The first radiating portion is used to stimulate LTE-A low, medium, high frequency modes, ultra-high frequency mode, 5G N77 mode, 5G N78 mode and 5G N79 mode, and the second radiating portion is used to stimulate GPS mode, WIFI 2.4GHz mode and WIFI 5GHz mode.

4. The antenna structure according to claim 1, wherein: The signal of the antenna module is coupled to the first radiating portion and the second radiating portion, so that the first radiating portion and the second radiating portion respectively excite corresponding radiation modes.

5. The antenna structure according to claim 1, wherein: The antenna structure also includes a first feeding source and a second feeding source, wherein the first feeding source is electrically connected to the first radiating portion for feeding a current signal to the first radiating portion, and the second feeding source is electrically connected to the second radiating portion for feeding a current signal to the second radiating portion.

6. The antenna structure according to claim 5, characterized in that: The antenna structure also includes a connecting part and a switching unit. The connecting part is spaced apart from the first feeding source. The connecting part is a grounding part or a high-frequency regulator. One end of the connecting part is electrically connected to the first radiating part, and the other end is grounded. The switching unit is spaced apart from the first feeding source and the connecting part. One end of the switching unit is electrically connected to the first radiating part, and the other end is grounded, so as to switch the low-frequency mode of the first radiating part.

7. The antenna structure according to claim 5, characterized in that: The antenna structure also includes a grounding portion, which is spaced apart from the second feeding source, one end of the grounding portion is electrically connected to the second radiating portion, and the other end of the grounding portion is grounded to provide grounding for the second radiating portion.

8. An electronic device, characterized in that: The electronic device comprises the antenna structure according to any one of claims 1 to 7.

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