Antenna device and electronic device

Abstract

This application discloses an antenna device and an electronic device. The antenna device includes a first antenna assembly and a second antenna assembly. The first antenna assembly includes a first antenna, a first feed circuit electrically connected to the first antenna, and a tuning module connected to the first antenna. The tuning module, in cooperation with the first feed circuit, enables the first antenna to have a first operating frequency band and a second operating frequency band. The second antenna assembly includes a second antenna insulated from the first antenna and a second feed circuit connected to the second antenna. The second feed circuit enables the second antenna to have a third operating frequency band, which does not overlap with the first operating frequency band. When the first antenna operates in the second operating frequency band, it can gain the second antenna. This antenna device improves the radiation performance of the other antenna by gaining the other antenna with one antenna, thereby improving the communication performance of the electronic device.

Description

Technical Field

[0001] This disclosure relates to the field of electronic technology, and in particular to an antenna device and an electronic device. Background Technology

[0002] Mobile phones, tablets, smartwatches, and other electronic devices have become indispensable technological products in people's lives, studies, and entertainment. With the development of communication technology, more and more electronic devices are integrating high-frequency antennas for communication, thus possessing advantages such as high transmission rates and low transmission latency.

[0003] In related technologies, electronic devices are becoming increasingly compact in structure, and antennas of different frequency bands require necessary clearance space to ensure their radiation performance. However, some antennas are limited by the internal space of electronic devices, making it difficult to improve their radiation performance, which in turn hinders the improvement of the communication performance of electronic devices. Summary of the Invention

[0004] This disclosure provides an antenna device and an electronic device. The antenna device enhances the radiation performance of the other antenna by increasing the gain of the other antenna, thereby improving the communication performance of the electronic device.

[0005] The technical solution is as follows:

[0006] According to a first aspect of the present disclosure, an antenna device is provided, including a first antenna assembly and a second antenna assembly. The first antenna assembly includes a first antenna, a first feed circuit electrically connected to the first antenna, and a tuning module connected to the first antenna. The tuning module cooperates with the first feed circuit to enable the first antenna to have a first operating frequency band and a second operating frequency band, the frequency of the second operating frequency band not overlapping with the frequency of the first operating frequency band. The second antenna assembly includes a second antenna insulated from the first antenna and a second feed circuit connected to the second antenna. The second feed circuit enables the second antenna to have a third operating frequency band, the third operating frequency band not overlapping with the first operating frequency band. When the first antenna operates in the second operating frequency band, it can gain the second antenna.

[0007] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0008] The first antenna of this antenna device, in conjunction with a tuning module and a first feeding circuit, can operate in both a first and a second operating frequency band, with the frequency of the second operating band not overlapping with that of the first operating band. When the first antenna operates in the second operating frequency band, it can gain the second antenna, thereby improving its radiation performance. Thus, this antenna device enhances the radiation performance of the second antenna by gaining it with the first antenna, which in turn improves the communication performance of the electronic equipment.

[0009] The technical solution of this disclosure will be further explained below:

[0010] In one embodiment, the first antenna includes a first feed section, which is fed into a first feed circuit to enable the first antenna to operate in a second operating frequency band.

[0011] In one embodiment, the first antenna further includes a first tuning section, which is spaced apart from the feed section along the length of the first antenna. The tuning module includes a first tuning circuit connected to the first tuning section. The first tuning circuit and the first feed circuit cooperate to enable the first antenna to operate in a first operating frequency band.

[0012] In one embodiment, the first operating frequency band includes at least two sub-frequency bands, the frequencies of which at least partially do not overlap. The first tuning circuit includes first tuning sub-units corresponding one-to-one with the sub-frequency bands. When one of the first tuning sub-units is connected to the first tuning unit, while the other first tuning sub-units are disconnected from the first tuning unit, the first tuning sub-units cooperate with the first feeding circuit to enable the first antenna to operate in the corresponding sub-frequency band.

[0013] In one embodiment, the tuning module further includes a switching circuit connected to at least two first tuning subunits, the first tuning subunits being connected to the first tuning section via the switching circuit.

[0014] In one embodiment, the first antenna further includes a grounding portion for grounding, and a first feed portion is disposed between the grounding portion and the first tuning portion.

[0015] In one embodiment, the first antenna assembly further includes a grounding device, which includes at least one of a grounding capacitor and a grounding inductor, and the grounding portion is grounded through the grounding device.

[0016] In one embodiment, the first antenna includes a radiator with a first head, and the distance between the ground part and the first head is L1, where 11mm≤L1≤13mm; compared to the first feed part, the first head is disposed close to the ground part, and the distance between the first feed part and the ground part is L2, where 5mm≤L2≤9mm.

[0017] In one embodiment, the first operating frequency band includes a 3 / 4 wavelength mode from the first head to the ground. And / or, the second operating frequency band includes a 1 / 4 wavelength mode from the first head to the first feed section.

[0018] In one embodiment, the first power supply circuit includes an impedance matching unit connected to the first power supply section. The impedance matching unit includes a second tuning subunit, which includes at least one of a tuning capacitor and a tuning resistor.

[0019] In one embodiment, the impedance matching unit includes a tuning capacitor and a tuning resistor connected in series with the first power supply section, the tuning capacitor being disposed close to the first power supply section; the impedance matching unit also includes a first grounding circuit and a second grounding circuit, the first grounding circuit being connected in parallel between the tuning capacitor and the first power supply section, and the second grounding circuit being connected in parallel between the tuning capacitor and the tuning resistor.

[0020] In one embodiment, the first power supply circuit and the tuning module are connected in series in the power supply section.

[0021] In one embodiment, the first antenna includes a ground portion, a first feed portion, and a first tuning portion spaced apart along its length. The first feed portion is fed and connected to a first feed circuit. The first feed portion is disposed between the ground portion and the first tuning portion. The tuning module includes a second tuning circuit connected to the first tuning portion. The second tuning circuit cooperates with the first feed circuit to enable the first antenna to switch between a first operating frequency band and a second operating frequency band.

[0022] In one embodiment, the third operating frequency band at least partially overlaps with the second operating frequency band. Alternatively, the third operating frequency band at least partially does not overlap with the second operating frequency band and is superimposed with the second operating frequency band to form a fourth operating frequency band.

[0023] In one embodiment, the fourth operating frequency band includes 3300MHz to 4200MHz.

[0024] In one embodiment, the antenna device includes a metal frame, and a first antenna is a first frame antenna disposed within the metal frame.

[0025] In one embodiment, the second antenna is an LDS antenna, which is adjacent to the first frame antenna.

[0026] In one embodiment, the metal frame includes a display mounting area; an LDS antenna is disposed on the right side of the display mounting area; and a first frame antenna is disposed at the upper right corner of the display mounting area, or the first frame antenna is disposed on the right side of the display mounting area.

[0027] And / or, the clearance height of the LDS antenna is A, 0.8mm≤A≤1.5mm.

[0028] And / or, the area of ​​the LDS antenna is B, 80 mm². 2 ≤B≤100mm 2 .

[0029] And / or, the thickness of the LDS antenna is C, 0.02mm≤C≤0.03mm.

[0030] In one embodiment, the antenna device includes a first circuit board, a first feed circuit, a tuning module, and a second feed circuit integrated on the first circuit board.

[0031] And / or, the antenna device includes an antenna support, the LDS antenna is mounted on the antenna support and is fed into a second feed circuit.

[0032] In one embodiment, the thickness of the antenna support is D, where 0.6 mm ≤ D ≤ 0.8 mm.

[0033] In one embodiment, the second antenna is a second frame antenna and is disposed on a metal frame. The second frame antenna is adjacent to the first frame antenna. The first frame antenna has a first head and the second frame antenna has a second tail. The metal frame has an isolation gap disposed between the first head and the second tail.

[0034] In one embodiment, the effective radiation length of the first frame antenna is H1, where 30mm ≤ H1 ≤ 90mm.

[0035] And / or, the effective radiation length of the second frame antenna is H2, 5mm≤H2≤50mm.

[0036] And / or, the width of the isolation gap is H3, 0.5mm≤H3.

[0037] In one embodiment, the first frame antenna includes a first feed section, and the distance between the first feed section and the first head is L4, where 10mm≤L4≤40mm.

[0038] And / or, the second frame antenna includes a second head spaced apart from the second tail along the length direction of the second frame antenna and a second feed section disposed between the second head and the second tail, wherein the distance between the second feed section and the second head is L5, 0mm≤L5≤20mm.

[0039] According to a second aspect of the present disclosure, an electronic device is also provided, including a housing assembly, a control motherboard, and an antenna device as described in any of the above embodiments. A first antenna is disposed on the housing assembly, and a first power supply circuit, a tuning module, and a second power supply circuit are electrically connected to the control motherboard, respectively.

[0040] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0041] The electronic device uses the antenna device in any of the above embodiments. Compared with conventional technology, the antenna device improves the radiation performance of the second antenna by increasing the gain of the first antenna, which in turn helps to improve the communication performance of the electronic device.

[0042] The technical solution of this disclosure will be further explained below:

[0043] In one embodiment, the antenna device includes a metal frame, the metal frame includes a display mounting area, the first antenna is a first frame antenna and is disposed in the metal frame, and the first frame antenna is disposed in the upper right corner of the display mounting area;

[0044] The electronic device also includes a display screen and a camera module. The display screen is mounted on the housing assembly through a display mounting area. The camera module is mounted on the housing assembly along the thickness direction of the display screen and is positioned opposite to the display screen. The second antenna is an LDS antenna, which is located in the upper right corner of the display mounting area. The LDS antenna is positioned between the first frame antenna and the camera module.

[0045] In one embodiment, the control motherboard includes a second circuit board, a processor disposed on the second circuit board, and a shielding cover that shields the processor; along the thickness direction of the electronic device, the distance between the shielding cover and the second antenna is the clearance height, which is E, 0.8mm≤E≤1.5mm.

[0046] And / or, along the thickness direction of the electronic device, the spacing between the second circuit board and the second antenna is L3, 1.7mm≤L3≤2.5mm.

[0047] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0048] The accompanying drawings are provided to help understand the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the technical solutions of the present invention and do not constitute an improper limitation on the scope of protection of the present invention.

[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0050] Figure 1 This is a schematic diagram of the structure of an electronic device shown in one embodiment.

[0051] Figure 2 for Figure 1 The diagram shows the structure of the antenna device.

[0052] Figure 3 This is a schematic diagram of the structure of the first antenna assembly shown in one embodiment.

[0053] Figure 4This is a schematic diagram of the structure of the first antenna assembly shown in another embodiment.

[0054] Figure 5 for Figure 1 A schematic diagram of a partial structure of the electronic device shown.

[0055] Figure 6 for Figure 1 A partial cross-sectional view of the electronic device shown.

[0056] Figure 7 The above are S-parameter performance diagrams of the antenna devices shown in some embodiments.

[0057] Figure 8 This is a schematic diagram of the antenna efficiency of the first frame antenna in one embodiment, including low-frequency and mid-to-high-frequency bands (with LDS antenna).

[0058] Figure 9 This is a schematic diagram of the antenna efficiency of the first frame antenna in one embodiment, including low-frequency and mid-to-high-frequency components (without LDS antenna).

[0059] Figure 10 This is an antenna performance diagram of an LDS antenna shown in one embodiment.

[0060] Figure 11 This is a partial structural schematic diagram of an electronic device shown in one embodiment.

[0061] Figure 12 This is a schematic diagram of the antenna device shown in some embodiments.

[0062] Figure 13 This is a diagram showing the isolation performance between the first and second frame antennas in some embodiments.

[0063] Figure 14 This is an antenna performance diagram of the second frame antenna shown in some embodiments.

[0064] Figure 15 This is a schematic diagram of the internal hardware structure of an electronic device in one embodiment.

[0065] Explanation of reference numerals in the attached figures:

[0066] 10. Electronic device; 11. Processing component; 12. Memory; 13. Power supply component; 14. Multimedia component; 15. Audio component; 16. Input / output interface; 17. Sensor component; 18. Communication component; 100. Housing component; 110. Metal frame; 111. Display mounting area; 200. Antenna assembly; 210. First antenna assembly; 211. First antenna; 201. Grounding part; 202. First feed part; 203. First tuning part; 204. First head; 212. First feed circuit; 212a. Impedance matching unit; 207. Second tuning subunit; 2001. Tuning capacitor; 2002. Tuning... 208. Harmonic inductor; 209. First grounding circuit; 213. Second grounding circuit; 205. Tuning module; 205. First tuning circuit; 2051. First tuning subunit; 206. Switching circuit; 214. Grounding device; 215. Grounding terminal; 2121. Second tuning module; 220. Second antenna assembly; 221. Second antenna; 221a. Second tail section; 221b. Second head section; 221c. Second feed section; 222. Second feed circuit; 230. Antenna bracket; 300. Control main board; 310. Second circuit board; 320. Processor; 330. Shielding cover; 400. Display; 600. Camera module. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0068] 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 this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0069] Mobile phones, tablets, smartwatches, and other electronic devices have become indispensable technological products in people's lives, studies, and entertainment. With the diversification of electronic device functions, there are numerous types and brands available, offering consumers a wide range of choices. Therefore, how to win over consumers has become an increasingly important issue for electronic device manufacturers.

[0070] Currently, with the development of electronic devices, the integration of electronic devices is becoming increasingly sophisticated. At the same time, in order to adapt to miniaturization, the gaps between electronic components inside electronic devices are becoming smaller and the layout is becoming more compact.

[0071] In related technologies, electronic devices are becoming increasingly compact in structure, but the radiation performance of antennas is easily affected by other metal components, and the limited space for placement increases the difficulty of structural layout. For example, antenna design often utilizes high-frequency antennas for communication, offering advantages such as high transmission rates and low latency. However, high-frequency antennas are susceptible to interference from other electronic components, requiring sufficient clearance to ensure their radiation performance. Furthermore, when the metal decorative parts of a mobile phone camera are too large, and some antennas operate at long frequencies, they require significant clearance, occupying a large portion of the electronic device's internal space and hindering miniaturization.

[0072] Therefore, it is necessary to provide an antenna device that achieves a longer operating frequency band through at least two antennas, making the structure of electronic devices more compact and facilitating the miniaturization of electronic devices.

[0073] To better understand the antenna device of this application, the following description is provided in conjunction with an electronic device that uses the antenna device.

[0074] like Figure 1 as well as Figure 2 As shown, in some embodiments of this disclosure, an electronic device 10 is provided, including a housing assembly 100, a control motherboard 300, and an antenna device 200.

[0075] The antenna device 200 includes a first antenna assembly 210 and a second antenna assembly 220. The first antenna assembly 210 includes a first antenna 211 disposed in the housing assembly 100, a first feed circuit 212 electrically connected to the first antenna 211, and a tuning module 213 connected to the first antenna 211. The tuning module 213 cooperates with the first feed circuit 212 to enable the first antenna 211 to have a first operating frequency band and a second operating frequency band, the frequency of the second operating frequency band not overlapping with the frequency of the first operating frequency band. The second antenna assembly 220 includes a second antenna 221 insulated from the first antenna 211 and a second feed circuit 222 connected to the second antenna 221. The second feed circuit 222 enables the second antenna 221 to have a third operating frequency band, the third operating frequency band not overlapping with the first operating frequency band. When the first antenna 211 operates in the second operating frequency band, it can gain the second antenna 221.

[0076] When the electronic device 10 communicates using the antenna device 200, the first antenna 211, in conjunction with the first feed circuit 212 via the tuning module 213, can operate in both a first operating frequency band and a second operating frequency band, wherein the frequency of the second operating frequency band does not overlap with the frequency of the first operating frequency band. When the first antenna 211 operates in the second operating frequency band, it can gain the second antenna 221, improving the radiation performance of the second antenna 221. Thus, the communication performance of the electronic device 10 can be improved.

[0077] It should be noted that "when the first antenna 211 operates in the second operating frequency band, it can gain the second antenna 221" includes increasing the bandwidth of the second antenna 221 or increasing the efficiency of the second antenna 221.

[0078] In some embodiments, the third operating frequency band at least partially overlaps with the second operating frequency band. Thus, when the electronic device 10 communicates using the antenna device 200, the first antenna 211, in conjunction with the tuning module 213 and the first feed circuit 212, can operate in both the first and second operating frequency bands, and the frequency of the second operating frequency band does not overlap with the frequency of the first operating frequency band. When the first antenna 211 operates in the second operating frequency band, it at least partially overlaps with the third operating frequency band, thereby improving the antenna efficiency of the second antenna 221 and thus enhancing the communication performance of the electronic device 10 in the third operating frequency band.

[0079] In some embodiments, at least a portion of the third operating frequency band does not overlap with the second operating frequency band, and the third operating frequency band is superimposed with the second operating frequency band to form a fourth operating frequency band. Thus, when the electronic device 10 communicates using the antenna device 200, the first antenna 211, through the tuning module 213 and the first feed circuit 212, can operate in both the first and second operating frequency bands, and the frequency of the second operating frequency band does not overlap with the frequency of the first operating frequency band. When the first antenna 211 operates in the second operating frequency band, it can be superimposed with the third operating frequency band of the second antenna 221 to form a fourth operating frequency band. In this way, the antenna device 200 achieves a longer operating frequency band through the cooperation of at least two antennas, reducing the area of ​​the second antenna 221 and thus reducing its occupied clearance space, thereby reducing the space occupied by the electronic device 10. This makes the structure of the electronic device 10 more compact, which is beneficial for miniaturizing the electronic device 10.

[0080] It should be noted that the fourth operating frequency band is generally a continuous band and can be set according to actual needs. For example, the fourth operating frequency band may include mid-to-low frequency bands, mid-to-high frequency bands, high frequency bands, or ultra-high frequency bands. Alternatively, the fourth operating frequency band may include N77 and N78. Specifically, China Telecom's 5G frequency band is 3400MHz–3500MHz, a total of 100MHz, with the band number N78. China Unicom's 5G frequency band is 3500MHz–3600MHz, a total of 100MHz, with the band number N77.

[0081] In conjunction with the above embodiments of the fourth operating frequency band, in some embodiments, the fourth operating frequency band includes 3300MHz to 4200MHz. This allows for coverage of multiple high-frequency bands to meet high-frequency communication requirements.

[0082] In one example, the second operating frequency band includes 3800MHz to 4200MHz. The third operating frequency band includes 3300MHz to 3800MHz, so that the fourth operating frequency band operates in the range of 3300MHz to 4200MHz.

[0083] Based on any of the above embodiments, such as Figure 2 or Figure 3 As shown, in some embodiments, the first antenna 211 includes a first feed section 202, which is fed and connected to a first feed circuit 212 to enable the first antenna 211 to operate in a second operating frequency band. Thus, by connecting the first feed section 202 to the first feed circuit 212, the first antenna 211 can operate in the second operating frequency band without switching, which helps reduce the need for switching circuitry.

[0084] Furthermore, such as Figure 2 or Figure 3 As shown, in some embodiments, the first antenna 211 includes a first tuning section 203, which is spaced apart from the feed section along the length of the first antenna 211. The tuning module 213 includes a first tuning circuit 205 connected to the first tuning section 203. The first tuning circuit 205 cooperates with the first feed circuit 212 to enable the first antenna 211 to operate in a first operating frequency band. Thus, by cooperating with the first tuning circuit 205 and the first feed circuit 212, the first antenna 211 can operate in a second operating frequency band while also being compatible with the first operating frequency band. That is, the first operating frequency band and the second operating frequency band can radiate simultaneously.

[0085] Optionally, such as Figure 3 As shown, in some embodiments, the first operating frequency band includes at least two sub-frequency bands, and the frequencies between the at least two sub-frequency bands do not overlap at least partially. The first tuning circuit 205 includes first tuning sub-units 2051 corresponding to each sub-frequency band. When one of the first tuning sub-units 2051 is connected to the first tuning section 203, while the other first tuning sub-units 2051 are disconnected from the first tuning section 203, the first tuning sub-units 2051 cooperate with the first feed circuit 212 to enable the first antenna 211 to operate in the corresponding sub-frequency band. Thus, by connecting the first tuning sub-units 2051 corresponding to each sub-frequency band to the first tuning section 203, the first tuning sub-units 2051 cooperate with the first feed circuit 212 to enable the first antenna 211 to operate in the corresponding sub-frequency band, allowing the first antenna 211 to be compatible with multiple frequency bands to meet different communication needs.

[0086] It should be noted that the sub-bands include N28A / B5 / B8 / B1 / B3 / B38 / B39 / B40 / B41, etc., which can be selected according to actual needs.

[0087] like Figure 3 As shown, in some embodiments, the first tuning circuit 205 includes a switching circuit 206 connected to at least two first tuning sub-units 2051, and the first tuning sub-units 2051 are connected to the first tuning section 203 through the switching circuit 206. In this way, the on / off control characteristics of the switching circuit 206 can be fully utilized, enabling the first antenna 211 to switch between at least two sub-bands without increasing the design difficulty of the tuning module 213.

[0088] It should be noted that the specific implementation of the switching unit can take many forms, as long as it meets the switching requirements mentioned above. For example, the switching unit has multiple switches, each connected in series with a corresponding first tuning subunit 2051 to achieve separate on / off control. Alternatively, the switching unit may have multiple on / off positions, allowing selective closing of one on / off position while opening of others, or opening of all on / off positions, etc. For example, the switching unit could be a toggle switch with multiple on / off positions.

[0089] Based on any embodiment of the first tuning subunit 2051 described above, such as Figure 3 As shown, in some embodiments, there are four first tuning sub-units 2051; when one first tuning sub-unit 2051 is connected in series with the feed unit through the switching circuit 206, the sub-frequency band of the first frame antenna is B41; when another first tuning sub-unit 2051 is connected in series with the feed unit through the switching circuit 206, the sub-frequency band of the first frame antenna is B1; when another first tuning sub-unit 2051 is connected in series with the feed unit through the switching circuit 206, the sub-frequency band of the first frame antenna is N28A; and when the last first tuning sub-unit 2051 is connected in series with the feed unit through the switching circuit 206, the sub-frequency band of the first frame antenna is B3. Thus, the first operating frequency band can be further divided into four sub-frequency bands to meet the communication requirements of the electronic device 10.

[0090] It should be noted that the tuning value of the first tuning subunit 2051 can be achieved through various structures, such as by using multiple capacitors connected in series and / or in parallel, or by connecting capacitors and inductors in series and / or in parallel.

[0091] Based on any embodiment of the first tuning unit 203 described above, such as Figure 3 As shown, in some embodiments, the first antenna 211 further includes a grounding portion 201 for grounding, and a first feed portion 202 is disposed between the grounding portion 201 and the first tuning portion 203. Thus, grounding the first antenna 211 can improve its radiation performance.

[0092] Furthermore, in some embodiments, the first antenna assembly 210 further includes a grounding device 214, which includes at least one of a grounding capacitor and a grounding inductor, and the grounding portion 201 is grounded through the grounding device 214. In this way, electromagnetic coupling grounding is achieved by using a capacitor or inductor, and the grounding device 214 is used to generate current to pull the first antenna 211, thereby improving the radiation performance of the first antenna 211.

[0093] Based on any embodiment of the grounding part 201 described above, such as Figure 3 As shown, in some embodiments, the first antenna 211 includes a radiator with a first head 204. The distance between the grounding portion 201 and the first head 204 is L1, where 11mm ≤ L1 ≤ 13mm. Compared to the first feed portion 202, the first head 204 is positioned closer to the grounding portion 201, and the distance between the first feed portion 202 and the grounding portion 201 is L2, where 5mm ≤ L2 ≤ 9mm. Thus, by limiting the distances between the grounding portion 201 and the first head 204, and between the first head 204 and the first feed portion 202, tuning is facilitated, enabling the first antenna 211 to operate in both a first and a second operating frequency band.

[0094] In some embodiments, 12mm ≤ L1 ≤ 13mm.

[0095] Optionally, in some embodiments, L1 = 11mm, 11.5mm, 12mm, 12.5mm, or 13mm.

[0096] In some embodiments, 6mm ≤ L2 ≤ 7.5mm.

[0097] Optionally, in some embodiments, L2 = 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, or 9mm.

[0098] In one example, L1 = 12.8 mm; L2 = 6.9 mm. This facilitates tuning, allowing the first antenna 211 to operate in the mid-to-high frequency band in its first operating frequency band and in the high frequency and / or ultra-high frequency band in its second operating frequency band.

[0099] Based on any embodiment of the grounding portion 201 described above, in some embodiments, the first operating frequency band includes a 3 / 4 wavelength mode from the first head 204 to the grounding portion 201. Thus, the 1 / 4 wavelength mode from the first head 204 to the grounding portion 201 facilitates tuning so that the first operating frequency band of the first antenna 211 is in the mid-to-high frequency band.

[0100] And / or, the second operating frequency band includes a 1 / 4 wavelength mode from the first head 204 to the first feed section 202. Thus, the 1 / 4 wavelength mode from the first head 204 to the first feed section 202 facilitates impedance matching so that the second operating frequency band of the first antenna 211 is in the range of 3800MHz to 4200MHz.

[0101] Based on any embodiment of the first power supply unit 202 described above, such as Figure 3 As shown, in some embodiments, the first feed circuit 212 includes an impedance matching unit 212a connected to the first feed section 202. The impedance matching unit 212a includes a second tuning subunit 207, which includes at least one of a tuning capacitor 2001 and a tuning resistor. Thus, by connecting the impedance matching unit 212a to the first feed section 202 and using at least one of the tuning capacitor 2001 and the tuning resistor for adjustment, the first antenna 211 can operate in the second operating frequency band.

[0102] It should be noted that the tuning value of the second tuning subunit 207 can be achieved through various structures, such as by using multiple capacitors connected in series and / or in parallel, or by connecting capacitors and inductors in series and / or in parallel.

[0103] like Figure 3 As shown in one example, the impedance matching unit 212a includes a tuning capacitor 2001 and a tuning resistor connected in series with the first feed section 202. The tuning capacitor 2001 is positioned close to the first feed section 202. The impedance matching unit 212a also includes a first grounding circuit 208 and a second grounding circuit 209. The first grounding circuit 208 is connected in parallel between the tuning capacitor 2001 and the first feed section 202, and the second grounding circuit 209 is connected in parallel between the tuning capacitor 2001 and the tuning resistor. Thus, by connecting the tuning capacitor 2001 and the tuning resistor in series with the first feed section 202, and by connecting the first grounding circuit 208 in parallel between the tuning capacitor 2001 and the first feed section 202, and by connecting the second grounding circuit 209 in parallel between the tuning capacitor 2001 and the tuning resistor, the first antenna 211 can operate in the second operating frequency band after being fed, without the need for additional tuning circuitry.

[0104] like Figure 4As shown, in some other embodiments, the first antenna 211 includes a ground portion 201, a first feed portion 202, and a first tuning portion 203 spaced apart along its length. The first feed portion 202 is connected to a first feed circuit 212 and is disposed between the ground portion 201 and the first tuning portion 203. The tuning module 213 includes a second tuning circuit connected to the first tuning portion 203. The second tuning circuit cooperates with the first feed circuit 212 to enable the first antenna 211 to switch between a first operating frequency band and a second operating frequency band. Thus, by cooperating with the first feed circuit 212, the second tuning circuit enables the first antenna 211 to switch between the first operating frequency band and the second operating frequency band, thereby selectively switching the operating frequency band.

[0105] The specific structure of the second tuning circuit can be set with reference to the first tuning circuit 205, so that the first antenna 211 can work in the first operating frequency band or the second operating frequency band.

[0106] In other embodiments, the first feed circuit 212 and the tuning module 213 are connected in series in the feed section. This makes the structure of the first antenna 211 more compact.

[0107] The tuning module 213 can be implemented with reference to the tuning module 213 in any of the foregoing embodiments, and can enable the first antenna 211 to work in the first working frequency band or the second working frequency band.

[0108] Based on any of the above embodiments, such as Figure 5 As shown, in some embodiments, the antenna device 200 includes a metal frame 110, and the first antenna 211 is a first frame antenna disposed on the metal frame 110. In this way, the first frame antenna is formed by using the metal frame 110, thereby making full use of the structure of the housing assembly 100, making the structure of the electronic device 10 more compact, which is conducive to the miniaturization of the electronic device 10.

[0109] Based on the above embodiments, such as Figure 5 As shown, in some embodiments, the second antenna 221 is an LDS antenna, which is adjacent to the first frame antenna. Thus, using an LDS antenna to form the second antenna 221 allows for more flexible arrangement and facilitates its co-radiation with the first antenna 211 to form a fourth operating frequency band.

[0110] like Figure 3 as well as Figure 5As shown, in one example, the first frame antenna is positioned at the upper right corner of the display mounting area 111. This gives the first antenna 211 good anti-interference capability, superior radiation performance, and a more compact structure for the electronic device 10. Furthermore, the first frame antenna can be extended to a loop antenna or a monopole antenna, which helps reduce the difficulty of antenna arrangement in the electronic device 10.

[0111] Furthermore, in some embodiments, the first antenna 211 is a T-antenna, which is compatible with more operating frequency bands. In addition, the first antenna 211 is located in the upper right corner of the display mounting area 111, which makes the isolation between the first antenna 211 and the second antenna 221 good. Thus, good isolation can be achieved without the need to add an additional LC filter network, allowing the two first antenna components 210 and the second antenna component 220 to work simultaneously without interfering with each other.

[0112] Based on the aforementioned embodiment of the first frame antenna, in some embodiments, the LDS antenna is located in the upper right corner of the display mounting area 111. Thus, by using the LDS antenna to radiate in the frequency doubling mode of the first frame antenna to form a fourth operating frequency band, not only can radiation performance be improved, but layout space can also be saved, which is beneficial for achieving a thinner and lighter electronic device 10. Furthermore, it can accommodate larger metal decorative parts to meet the installation requirements of the camera module 600. In addition, this method can reduce debugging difficulty.

[0113] In addition, the LDS antenna is positioned in the upper right corner of the display installation area 111, which helps to ensure antenna efficiency and improve radiation performance.

[0114] Based on the above embodiments, such as Figure 6 As shown, in some embodiments, the clearance height of the LDS antenna is A, where 0.8mm ≤ A ≤ 1.5mm. This ensures the radiation performance of the LDS antenna within a relatively small clearance environment, and utilizes the higher-order modes of the first frame antenna for combined radiation, achieving coverage of the fourth operating frequency band.

[0115] In some embodiments, 1mm ≤ A ≤ 1.3mm.

[0116] Optionally, in some embodiments, A = 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm.

[0117] In some embodiments, the area of ​​the LDS antenna is B, 80 mm². 2 ≤B≤100mm 2Thus, in a relatively small clearance environment, coverage of the fourth operating frequency band can be achieved by utilizing the higher-order modes of the first frame antenna for common radiation without increasing other costs or adding an LC filter network, using a very small radiating area. Moreover, when the first antenna 211 and the second antenna 221 operate simultaneously, they do not interfere with each other.

[0118] In some embodiments, 85mm 2 ≤B≤80mm 2 .

[0119] Optionally, in some embodiments, B = 80mm 2 85mm 2 88mm 2 90mm 2 95mm 2 98mm 2 99mm 2 100mm 2 .

[0120] In some embodiments, the thickness of the LDS antenna is C, where 0.02 mm ≤ C ≤ 0.03 mm. This facilitates the reduction in the thickness and weight of the electronic device 10.

[0121] In some embodiments, 0.023mm ≤ C ≤ 0.028mm.

[0122] Optionally, in some embodiments, C = 0.02mm, 0.021mm, 0.025mm, 0.026mm, 0.028mm, or 0.03mm.

[0123] Based on the LDS antenna described above, in some embodiments, the antenna device 200 includes an antenna support 230, on which the LDS antenna is disposed and fed by the second feed circuit 222. This facilitates the formation of the LDS antenna on the antenna support 230, resulting in a thinner LDS antenna and easier fixation to the antenna support 230.

[0124] Based on any of the above embodiments, such as Figure 6 As shown, in some embodiments, the thickness of the antenna support 230 is D, where 0.6mm ≤ D ≤ 0.8mm. This facilitates the reduction in the thickness of the electronic device 10.

[0125] In some embodiments, 0.65mm ≤ D ≤ 0.75mm.

[0126] Optionally, in some embodiments, D = 0.6mm, 0.62mm, 0.65mm, 0.7mm, 0.75mm, or 0.8mm.

[0127] Based on any of the above embodiments, in some embodiments, the antenna device 200 includes a first circuit board, a first feeding circuit 212, a tuning module 213, and a second feeding circuit 222 integrated on the first circuit board. Thus, the first circuit board is easy to route and has a thin and light structure, making the antenna device 200 more compact and contributing to the thinning and lightening of the electronic device 10.

[0128] like Figure 5 as well as Figure 6 As shown, in conjunction with the aforementioned metal frame 110, in one example, the metal frame 110 includes a display mounting area 111, a first antenna 211 (a first bezel antenna) disposed on the metal frame 110, and the first bezel antenna is located at the upper right corner of the display mounting area 111. The electronic device 10 also includes a display screen and a camera module 600. The display screen is mounted on the housing assembly 100 via the display mounting area 111. Along the thickness direction of the display screen, the camera module 600 is mounted on the housing assembly 100 and positioned opposite to the display screen. The second antenna 221 (an LDS antenna) is located at the upper right corner of the display mounting area 111, and the LDS antenna is located between the first bezel antenna and the camera module 600. Thus, using the antenna structure of this application, a portion of the fourth operating frequency band is implemented through the first bezel antenna, facilitating the placement of the LDS antenna between the first bezel antenna and the camera module 600, making the structure of the electronic device 10 more compact.

[0129] Furthermore, the LDS antenna described in this solution only requires changing the width and length of the radiator to achieve good impedance matching in the N78 band, without the need for an LC matching network. Its wiring configuration is also more flexible.

[0130] Understandably, if conditions permit, the radiating area of ​​the LDS antenna can be increased to reduce impedance, improve antenna efficiency, and further enhance radiation performance.

[0131] like Figure 6 As shown, in one example, the control motherboard 300 includes a second circuit board 310, a processor 320 disposed on the second circuit board 310, and a shielding cover 330 that shields the processor 320. Along the thickness direction of the electronic device 10, the distance between the shielding cover 330 and the second antenna 221 is the clearance height, which is E, 0.8mm≤E≤1.5mm. Thus, in a relatively small clearance environment, the radiation performance of the LDS antenna is guaranteed, and the higher-order modes of the first frame antenna are used for co-radiation to achieve coverage of the fourth operating frequency band.

[0132] In some embodiments, 1mm ≤ E ≤ 1.3mm.

[0133] Optionally, in some embodiments, E = 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm.

[0134] Along the thickness direction of the electronic device 10, the distance between the second circuit board 310 and the second antenna 221 is L3, where 1.7mm ≤ L3 ≤ 2.5mm. This facilitates the reduction of the thickness of the electronic device 10.

[0135] In some embodiments, 1.9mm ≤ L3 ≤ 5mm.

[0136] Optionally, in some embodiments, L3 = 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm.

[0137] The following is combined Figures 7 to 10 As shown, the first antenna 211 is set as the first frame antenna and the second antenna 221 is set as the LDS antenna in this embodiment. The technical effects of this application are further explained in combination with the communication requirements of mobile terminals.

[0138] like Figure 7 The figure shows the S-parameters of the antenna device 200 of this application. As can be seen from the figure, good low-frequency and mid-to-high-frequency matching of the first frame antenna can be achieved through the first frame antenna matching network 1 and antenna matching network 2 (solid lines). Furthermore, the N77 / 78 band of the LDS antenna can also be well matched (dashed lines). In addition, S2,1 reflects good isolation between the two antennas, with an isolation level below -18dB.

[0139] It should be emphasized that the LDS antenna body covers part of the N78 frequency band (3300MHz~3800MHz), which corresponds to the first standing wave in the S-parameters. The second standing wave is generated by the first frame antenna. Its function is to cover the entire N78 frequency band (3300MHz~4200MHz) together with the LDS antenna. It has good matching throughout the entire frequency band and the isolation of the first frame antenna is below -18dB across the entire frequency band. The two antennas can work simultaneously without affecting each other.

[0140] like Figure 8 The figure shows the antenna efficiency (including LDS antenna) of the low-frequency + mid-high frequency first frame antenna of this application. Considering the miniaturization of the low-frequency long arm length and the poor clearance, the total efficiency shown is -9dB for low frequency and -3.5dB for mid-high frequency, which can meet the antenna performance requirements of general mobile terminals.

[0141] like Figure 9The figure shows the antenna efficiency (without LDS antenna) of the low-frequency + mid-high-frequency first frame antenna of this application. The performance is consistent with that of the LDS antenna described above, proving that the two systems can work simultaneously without affecting each other.

[0142] like Figure 10 The figure shows the antenna efficiency of the N77 / 78 band LDS antenna of this application. The N77 / 78 band has a peak efficiency of -3.8dB, which can also meet the antenna performance requirements of general mobile terminals.

[0143] like Figure 11 as well as Figure 12 As shown, in conjunction with the above-described embodiment of the first frame antenna, in other embodiments, the second antenna 221 is a second frame antenna and is disposed on the metal frame 110. The second frame antenna is adjacent to the first frame antenna. The first frame antenna has a first head 204, and the second frame antenna has a second tail 221a. The metal frame 110 has an isolation gap disposed between the first head 204 and the second tail 221a. Thus, by further utilizing the metal frame 110 to form the second frame antenna, the structure of the housing assembly 100 can be fully utilized, making the structure of the electronic device 10 more compact and facilitating the miniaturization of the electronic device 10.

[0144] In addition, an isolation gap is provided between the first head 204 and the second tail 221a, so that the first frame antenna and the second frame antenna are arranged head to tail, which helps to improve the isolation between the first antenna 211 and the second antenna 221, improve the radiation performance of the antenna device 200, and thus improve the communication performance of the electronic device 10.

[0145] In conjunction with the above-described embodiments of the second frame, in some embodiments, the effective radiation length of the first frame antenna is H1, where 30mm ≤ H1 ≤ 90mm. This allows for flexible configuration of the first frame antenna according to the size of the metal frame 110 of the electronic device 10.

[0146] In some embodiments, 40mm ≤ H1 ≤ 70mm.

[0147] Optionally, in some embodiments, H1 = 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 45mm, 50mm, 54mm, 56mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 80mm, 81mm, 82mm, 83mm, 84mm, 85mm, 86mm, 87mm, 88mm, 89mm, 90mm.

[0148] In conjunction with any of the above embodiments of the second frame, in some embodiments, the effective radiation length of the second frame antenna is H2, where 5mm ≤ H2 ≤ 50mm. This allows for flexible configuration of the second frame antenna according to the size of the metal frame 110 of the electronic device 10.

[0149] In some embodiments, 9mm ≤ H2 ≤ 20mm.

[0150] Optionally, in some embodiments, H2 = 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 25mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 45mm, 50mm.

[0151] In some embodiments of the second frame described above, the width of the isolation gap is H3, where 0.5mm ≤ H3. This provides sufficient clearance between the first frame antenna and the second frame antenna to ensure good isolation between them.

[0152] In some embodiments, 0.8mm ≤ H3 ≤ 1.5mm.

[0153] Optionally, in some embodiments, H3 = 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm.

[0154] In conjunction with the above-described second frame embodiment, in some embodiments, the first frame antenna includes a first feed section 202, and the distance between the first feed section 202 and the first head 204 is L4, where 10mm ≤ L4 ≤ 40mm. This allows for flexible configuration of the first feed section 202, enabling the first frame antenna to operate in both a first and a second operating frequency band, facilitating tuning.

[0155] In some embodiments, 12mm ≤ L4 ≤ 13mm.

[0156] Optionally, in some embodiments, L5 = 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 25mm, 30mm, 34mm, 36mm, 38mm, 39mm, 40mm.

[0157] In some embodiments of the second frame antenna, the second frame antenna includes a second head 221b spaced apart from the second tail 221a along the length of the second frame antenna, and a second feed section 221c disposed between the second head 221b and the second tail 221a. The distance between the second feed section 221c and the second head 221b is L5, where 0mm ≤ L5 ≤ 20mm. This allows for flexible configuration of the second feed section 221c, enabling the second frame antenna to operate in a third operating frequency band, facilitating tuning. Furthermore, when using the radiating arm of the first frame antenna to improve the efficiency of the second frame antenna's operating frequency band, it effectively ensures that the first and second frame antennas operate simultaneously without interfering with each other.

[0158] In some embodiments, 0mm≤L5≤10mm.

[0159] Optionally, in some embodiments, L5 = 0mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm.

[0160] In one example, the first frame antenna is a T-shaped antenna, including a first radiating wall 29mm long and a second radiating arm 28mm long. H2 is 9mm. H3=1mm, L4=21mm, L5=0mm. Figure 13 As shown, the isolation between the first and second frame antennas is good, with isolation levels both below -19dB. Figure 14 The figure shows the antenna radiation efficiency of the first and second frame antennas in the Sub-6GHz N77 band. The antenna efficiency of the second frame antenna is improved by more than 0.7dB, which improves the communication performance of the electronic device 10.

[0161] Reference Figure 15 As shown, in some embodiments, the electronic device 10 may further include one or more of the following components: a processing component 11, a memory 12, a power supply component 13, a multimedia component 14, an audio component 15, an input / output interface 16, a sensor component 17, and a communication component 18.

[0162] Processing components typically control the overall operation of electronic devices, such as operations associated with display, telephone calls, data communication, camera operation, and recording. A processing component may include one or more processors to execute instructions to complete all or part of the steps of the methods described above. Furthermore, a processing component may include one or more modules to facilitate interaction between the processing component and other components. For example, a processing component may include a multimedia module to facilitate interaction between multimedia components and the processing component.

[0163] Memory is configured to store various types of data to support the operation of electronic devices. Examples of this data include instructions for any application or method configured to operate on an electronic device, contact data, phonebook data, messages, pictures, videos, etc. Memory can be implemented from any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0164] The control board includes processing components and memory.

[0165] Power supply components provide power to various components of electronic devices. Power supply components may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic devices.

[0166] The multimedia component includes the display module of this disclosure, facilitating human-computer interaction. If the display module includes a touch panel, the display module can be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component includes a front-facing camera and / or a rear-facing camera. When the electronic device is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0167] The audio component is configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC) configured to receive external audio signals when the electronic device is in an operating mode, such as a call mode, recording mode, or voice recognition mode. The received audio signals may be further stored in memory or transmitted via a communication component. In some embodiments, the audio component also includes a speaker configured to output audio signals.

[0168] The input / output interface provides an interface between the processing component and the peripheral interface module, which can be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

[0169] The sensor assembly includes one or more sensors configured to provide state assessment of various aspects of the electronic device. For example, the sensor assembly can detect the on / off state of the electronic device, the relative positioning of components such as the display and keypad of the electronic device, changes in the position of the electronic device or a component of the electronic device, the presence or absence of user contact with the electronic device, the orientation or acceleration / deceleration of the electronic device, and temperature changes of the electronic device. The sensor assembly may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly may also include a photosensitive element, such as a CMOS or CCD image sensor, configured for use in imaging applications. In some embodiments, the sensor assembly may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0170] The communication component is configured to facilitate wired or wireless communication between electronic devices and other devices. The electronic device can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, or 6G, or combinations thereof. In one exemplary embodiment, the communication component receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0171] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0172] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0173] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0174] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0175] It should be noted that when a component is described as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, screwing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0176] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0177] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. An antenna device, characterized by include: The first antenna assembly includes a first antenna, a first feeding circuit connected to the first antenna, and a tuning module connected to the first antenna. The tuning module cooperates with the first feeding circuit to enable the first antenna to have a first operating frequency band and a second operating frequency band. as well as The second antenna assembly includes a second antenna that is insulated from the first antenna and a second feeding circuit connected to the second antenna. The second feeding circuit enables the second antenna to have a third operating frequency band, which does not overlap with the first operating frequency band. The first antenna includes a grounding portion for grounding, a first feeding portion connected to the first feeding circuit, and a first tuning portion. The first feeding portion is disposed between the grounding portion and the first tuning portion. The first tuning portion and the first feeding portion are spaced apart along the length of the first antenna. The tuning module includes a first tuning circuit connected to the first tuning portion. The frequency of the second operating frequency band does not coincide with the frequency of the first operating frequency band, and the second operating frequency band is higher than the first operating frequency band. The first tuning circuit and the first feeding circuit cooperate to enable the first antenna to operate simultaneously in the first operating frequency band and the second operating frequency band. Moreover, when the first antenna operates in the second operating frequency band, it can gain the second antenna.

2. The antenna device of claim 1, wherein The first operating frequency band includes at least two sub-frequency bands, and the frequencies between the at least two sub-frequency bands do not overlap at least partially. The first tuning circuit includes a first tuning sub-unit that corresponds one-to-one with each of the sub-frequency bands. When one of the first tuning sub-units is connected to the first tuning section, while the other first tuning sub-units are disconnected from the first tuning section, the first tuning sub-units, in conjunction with the first feed circuit, enable the first antenna to operate in the corresponding sub-frequency band.

3. The antenna device of claim 2, wherein, The tuning module further includes a switching circuit connected to at least two of the first tuning subunits, and the first tuning subunits are connected to the first tuning section through the switching circuit.

4. The antenna device of claim 1, wherein, The first antenna assembly further includes a grounding device, which includes at least one of a grounding capacitor and a grounding inductor, and the grounding portion is grounded through the grounding device.

5. The antenna device of claim 1, wherein, The first antenna includes a radiator, the radiator having a first head, the distance between the grounding part and the first head being L1, 11mm≤L1≤13mm; compared to the first feed part, the first head is disposed closer to the grounding part, and the distance between the first feed part and the grounding part is L2, 5mm≤L2≤9mm.

6. The antenna device of claim 5, wherein, The first operating frequency band includes a 3 / 4 wavelength mode from the first head to the grounding part; And / or, the second operating frequency band includes a 1 / 4 wavelength mode from the first head to the first feed section.

7. The antenna device of claim 1, wherein, The first power supply circuit includes an impedance matching unit connected to the first power supply section. The impedance matching unit includes a second tuning subunit, which includes at least one of a tuning capacitor and a tuning resistor.

8. The antenna device according to claim 7, characterized in that, The impedance matching unit includes the tuning capacitor and the tuning resistor connected in series with the first power supply section, and the tuning capacitor is disposed close to the first power supply section; the impedance matching unit also includes a first grounding circuit and a second grounding circuit, the first grounding circuit being connected in parallel between the tuning capacitor and the first power supply section, and the second grounding circuit being connected in parallel between the tuning capacitor and the tuning resistor.

9. The antenna device of claim 1, wherein, The first power supply circuit and the tuning module are connected in series in the power supply section.

10. The antenna device according to claim 1, characterized in that, The third operating frequency band overlaps at least partially with the second operating frequency band; Alternatively, the third operating frequency band may not overlap with at least part of the second operating frequency band, and may be superimposed with the second operating frequency band to form a fourth operating frequency band.

11. The antenna device of claim 10, wherein, The fourth operating frequency band includes 3300MHz to 4200MHz.

12. The antenna device according to any one of claims 1 to 11, characterized in that, The antenna device includes a metal frame, and the first antenna is a first frame antenna disposed within the metal frame.

13. The antenna device of claim 12, wherein, The second antenna is an LDS antenna, which is adjacent to the first frame antenna.

14. The antenna device of claim 13, wherein, The metal frame includes a display mounting area; the LDS antenna is located on the right side of the display mounting area; the first frame antenna is located at the upper right corner of the display mounting area, or the first frame antenna is located on the right side of the display mounting area. And / or, the clearance height of the LDS antenna is A, 0.8mm≤A≤1.5mm; And / or, the area of ​​the LDS antenna is B, 80 mm². 2 ≤B≤100mm 2 ; And / or, the thickness of the LDS antenna is C, 0.02mm≤C≤0.03mm.

15. The antenna device of claim 13, wherein, The antenna device includes a first circuit board, on which the first feed circuit, the tuning module, and the second feed circuit are integrated; and / or, the antenna device includes an antenna bracket, on which the LDS antenna is disposed and fed to the second feed circuit.

16. The antenna device of claim 15, wherein, The thickness of the antenna support is D, where 0.6mm ≤ D ≤ 0.8mm.

17. The antenna device of claim 12, wherein, The second antenna is a second frame antenna and is disposed on the metal frame. The second frame antenna is adjacent to the first frame antenna. The first frame antenna has a first head and the second frame antenna has a second tail. The metal frame has an isolation gap disposed between the first head and the second tail.

18. The antenna device of claim 17, wherein, The effective radiation length of the first frame antenna is H1, where 30mm ≤ H1 ≤ 90mm; And / or, the effective radiation length of the second frame antenna is H2, 5mm≤H2≤50mm; And / or, the width of the isolation gap is H3, 0.5mm≤H3.

19. The antenna device of claim 18, wherein, The first frame antenna includes a first feed section, and the distance from the first feed section to the first head is L4, where 10mm≤L4≤40mm; And / or, the second frame antenna includes a second head spaced apart from the second tail along the length direction of the second frame antenna and a second feed section disposed between the second head and the second tail, wherein the distance between the second feed section and the second head is L5, 0mm≤L5≤20mm.

20. An electronic device, comprising: The device includes a housing assembly, a control motherboard, and an antenna device as described in any one of claims 1 to 19, wherein the first antenna is disposed on the housing assembly, and the first feed circuit, the tuning module, and the second feed circuit are electrically connected to the control motherboard.

21. The electronic device of claim 20, wherein, The antenna device includes a metal frame, the metal frame includes a display mounting area, the first antenna is a first frame antenna and is disposed in the metal frame, and the first frame antenna is disposed in the upper right corner of the display mounting area; The electronic device also includes a display screen and a camera module. The display screen is mounted on the housing assembly through the display mounting area. The camera module is mounted on the housing assembly along the thickness direction of the display screen and is positioned opposite to the display screen. The second antenna is an LDS antenna and is located at the upper right corner of the display mounting area. The LDS antenna is positioned between the first frame antenna and the camera module.

22. The electronic device according to claim 20 or 21, characterized in that, The control motherboard includes a second circuit board, a processor disposed on the second circuit board, and a shielding cover that shields the processor; along the thickness direction of the electronic device, the distance between the shielding cover and the second antenna is the clearance height, and the clearance height is E, 0.8mm≤E≤1.5mm; And / or, along the thickness direction of the electronic device, the spacing between the second circuit board and the second antenna is L3, 1.7mm≤L3≤2.5mm.

Images