Antenna assembly and terminal device

Abstract

The invention relates to an antenna assembly and terminal equipment, the antenna assembly comprises a radiator, the radiator comprises a first radiation section and a second radiation section located at two sides of a break joint, the first end of the first radiation section is connected with the break joint, the second end of the first radiation section is grounded, the first end of the second radiation section is connected with the break joint, and the second end of the second radiation section is grounded; the first radiation section is provided with a first feed point, and the second radiation section is provided with a second feed point; resonance of a first wavelength is generated between the first end of the first radiation section and the second end of the first radiation section; resonance of a second wavelength is generated between the first feed point and the first end of the first radiation section; resonance of a third wavelength is generated between the second feed point and the first end of the second radiation section. And resonance of a fourth wavelength is generated between the first end of the second radiation section and the second end of the second radiation section. The antenna provided by the invention meets the design requirement of accommodating the antenna with more frequency bands under one breaking joint.

Description

Technical Field

[0001] The present disclosure relates to the technical field of antennas, and particularly to an antenna assembly and a terminal device. Background Art

[0002] With the rapid development of communication technologies, people's requirements for intelligent terminal devices are also getting higher and higher. At the same time, as an important node in the upgrade of communication technologies, the era of the 5th generation mobile communication technology (5G) has arrived, and terminal devices supporting 5G frequency bands will be successively launched. 5G will comprehensively improve the network speed, stability, reliability, and low latency, and realize various application scenarios that could not be achieved in the 4G era. In the process of pursuing the full-screen and thin size of terminal devices, 5G antennas have more frequency bands. Therefore, how to accommodate antennas with more frequency bands under a single slot has become a huge challenge in the overall antenna design. Summary of the Invention

[0003] To overcome the problems existing in the related art, the present disclosure provides an antenna assembly and a terminal device.

[0004] According to a first aspect of an embodiment of the present disclosure, an antenna assembly is provided. The antenna assembly includes: a radiator, including a first radiation section and a second radiation section located on both sides of a slot, a first end of the first radiation section being connected to the slot, a second end of the first radiation section being grounded, a first end of the second radiation section being connected to the slot, and a second end of the second radiation section being grounded; a first feeding point is provided on the first radiation section, and a second feeding point is provided on the second radiation section; a resonance of a first wavelength is generated between a first end and a second end of the first radiation section; a resonance of a second wavelength is generated between the first feeding point and the first end of the first radiation section; a resonance of a third wavelength is generated between the second feeding point and the first end of the second radiation section; and a resonance of a fourth wavelength is generated between a first end and a second end of the second radiation section.

[0005] In some possible implementation manners, the resonances of the first wavelength, the second wavelength, the third wavelength, and the fourth wavelength all correspond to a quarter-wavelength mode.

[0006] In some possible implementation manners, the first radiation section further includes a third feeding point, and the third feeding point is provided between the first feeding point and the second feeding point; a resonance of a fifth wavelength is generated between the third feeding point and the first end of the first radiation section.

[0007] In some possible implementation manners, the resonance of the fifth wavelength corresponds to a quarter-wavelength mode.

[0008] In some possible embodiments, the resonance of the first wavelength is the resonance of a low frequency and / or the first GPS frequency band; the resonance of the second wavelength is the resonance of the WIFI 2.4 frequency band; the resonance of the third wavelength is the resonance of a high frequency or the 5G frequency band; the resonance of the fourth wavelength is the resonance of the second GPS frequency band.

[0009] In some possible embodiments, the resonance of the fifth wavelength is the resonance of the WIFI 5G and / or WIFI 6E frequency bands.

[0010] In some possible embodiments, the first feed point is connected to a first matching circuit, and the first matching circuit is used to achieve impedance matching for the resonance of the first wavelength and impedance matching for the resonance of the second wavelength.

[0011] In some possible embodiments, the first matching circuit includes: a first matching unit, a first end of the first matching unit is connected to the first feed point, a second end of the first matching unit is connected to a first feed source, and the first matching unit is used to achieve impedance matching; a second matching unit, a first end of the second matching unit is connected to the first matching unit, a second end of the second matching unit is grounded, and the second matching unit is used to achieve parallel impedance matching.

[0012] In some possible embodiments, the first matching unit includes a first capacitor and a second inductor, a first end of the first capacitor is connected to the first feed source, a second end of the first capacitor is connected to a first end of the second inductor, and a second end of the second inductor is connected to the first feed point; the second matching unit includes a second capacitor and a first inductor, a first end of the second capacitor is connected to the first end of the first capacitor, a second end of the second capacitor is grounded, a first end of the first inductor is connected to the second end of the second inductor, and a second end of the first inductor is grounded.

[0013] In some possible embodiments, the second feed point is connected to a second matching circuit, and the second matching circuit is used to achieve impedance matching for the resonance of the third wavelength, impedance matching for the resonance of the fourth wavelength, isolate the resonance of the third wavelength from the fourth wavelength, and isolate the resonance of the fifth wavelength.

[0014] In some possible embodiments, the second matching circuit includes: a third matching unit, a first end of the third matching unit is connected to the second feed point, and a second end of the third matching unit is connected to a second feed source; and, a first filter, one end of the first filter is connected to the second feed point, and the other end of the first filter is grounded.

[0015] In some possible embodiments, the third feeding point is connected to a third matching circuit, and the third matching circuit is configured to achieve impedance matching of the fifth-wavelength resonance and isolate the resonance of the second wavelength.

[0016] In some possible embodiments, the third matching circuit includes: a fourth matching unit, a first end of the fourth matching unit is connected to the third feeding point, and a second end of the fourth matching unit is connected to a third feed source; and, a second filter, one end of the second filter is connected to the third feeding point, and the other end of the second filter is grounded.

[0017] According to a second aspect of the embodiments of the present disclosure, there is provided a terminal device including the antenna assembly as described in any one of the embodiments of the first aspect above.

[0018] In some possible embodiments, the terminal device includes a frame, and at least a part of the frame is the radiator.

[0019] In some possible embodiments, the radiator is located at the top of the terminal device.

[0020] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: The present disclosure provides an antenna assembly, the antenna assembly includes a radiator, the radiator includes a first radiation segment and a second radiation segment located on both sides of a slot, a first end of the first radiation segment is connected to the slot, a second end of the first radiation segment is grounded, a first end of the second radiation segment is connected to the slot, and a second end of the second radiation segment is grounded; a first feeding point is provided on the first radiation segment, and a second feeding point is provided on the second radiation segment; resonance of a first wavelength is generated between a first end and a second end of the first radiation segment; resonance of a second wavelength is generated between the first feeding point and the first end of the first radiation segment; resonance of a third wavelength is generated between the second feeding point and the first end of the second radiation segment; resonance of a fourth wavelength is generated between a first end and a second end of the second radiation segment. The present disclosure meets the design requirements of accommodating more frequency band antennas under one slot.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0023] Figure 1 is a schematic structural diagram of an antenna assembly shown according to an exemplary embodiment.

[0024] Figure 2It is a graph showing the return loss performance of an antenna according to an exemplary embodiment.

[0025] Figure 3 It is a graph showing the return loss performance of an antenna according to an exemplary embodiment.

[0026] Figure 4 It is a graph showing the efficiency of an antenna according to an exemplary embodiment.

[0027] Figure 5 It is a schematic diagram of a partial structure of a terminal device according to an exemplary embodiment.

[0028] Figure 6 It is a block diagram of a terminal device according to an exemplary embodiment. Detailed implementation manners

[0029] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0030] With the accelerating replacement of terminal devices, people have strong requirements for the thinness and lightness of terminal devices. The screens of terminal devices are getting larger and the degree of thinness and lightness is getting higher, resulting in less space available for setting antennas on terminal devices.

[0031] In the related art, in order to implement more functions, terminal devices need to add antennas capable of transmitting radio frequency signals in more frequency bands. However, how to accommodate more antennas in a terminal device with a slit without affecting the original antennas in the terminal device is an urgent problem to be solved at present.

[0032] To solve the above technical problems, the present disclosure provides an antenna assembly and a terminal device.

[0033] According to a first aspect of the present disclosure, an antenna assembly is provided. As Figure 1 shown, the antenna assembly includes: a radiator 1000.

[0034] The radiator 1000 includes a first radiation section 100 and a second radiation section 200 located on both sides of a slit. The first end of the first radiation section 100 is connected to the slit, the second end of the first radiation section 100 is grounded, the first end of the second radiation section 200 is connected to the slit, and the second end of the second radiation section 200 is grounded; a first feeding point 103 is provided on the first radiation section 100, and a second feeding point 203 is provided on the second radiation section 200; resonance of a first wavelength is generated between the first end and the second end of the first radiation section 100; resonance of a second wavelength is generated between the first feeding point 103 and the first end of the first radiation section 100; resonance of a third wavelength is generated between the second feeding point 203 and the first end of the second radiation section 200; resonance of a fourth wavelength is generated between the first end and the second end of the second radiation section 200.

[0035] The first filter can filter out the influence of the first resonance 1 covering the B32 frequency band and the GPS L1 frequency band and the second resonance 2 covering the WIFI 2.4G frequency band on the third resonance 3 covering the WIFI 5G frequency band and the 6E frequency band. The fourth capacitor C4 is defined as the second filter and can be used to filter out the influence of the third resonance 3 on the fourth resonance 4 and the fifth resonance 5.

[0036] It can be understood that the antenna assembly is applied to a terminal device.

[0037] Among them, the wider the width of the slit, the better the isolation between the first radiation section 100 and the second radiation section 200. However, the wider the slit, the larger the size of the terminal device. Therefore, the width of the slit can be determined according to actual design and simulation requirements.

[0038] The length of the first radiation section 100 is the simulated length, and the length of the second radiation section 200 is the simulated length. The purpose of such design is to have a higher coverage efficiency.

[0039] Sufficient isolation is maintained between the first radiation section 100 and the second radiation section 200 through the slit to avoid interference with each other, thereby improving the antenna performance of the antenna assembly.

[0040] Both the first radiation section 100 and the second radiation section 200 are made of metal materials and can be metal components on the terminal device, such as a metal frame.

[0041] In the present disclosure, the radiator 1000 includes a first radiation segment 100 and a second radiation segment 200 located on both sides of the slot. The first end of the first radiation segment 100 is connected to the slot, the second end of the first radiation segment 100 is grounded, the first end of the second radiation segment 200 is connected to the slot, and the second end of the second radiation segment 200 is grounded; the first radiation segment 100 is provided with a first feeding point 103, and the second radiation segment 200 is provided with a second feeding point 203; a resonance of a first wavelength is generated between the first end and the second end of the first radiation segment 100; a resonance of a second wavelength is generated between the first feeding point 103 and the first end of the first radiation segment 100; a resonance of a third wavelength is generated between the second feeding point 203 and the first end of the second radiation segment 200; a resonance of a fourth wavelength is generated between the first end and the second end of the second radiation segment 200. The present disclosure meets the design requirements of accommodating more frequency bands of antennas under one slot.

[0042] In some possible implementation manners, the resonance of the first wavelength, the resonance of the second wavelength, the resonance of the third wavelength, and the resonance of the fourth wavelength all correspond to a quarter-wavelength mode.

[0043] In an exemplary embodiment of the present disclosure, the resonance of the first wavelength can be the resonance of the B32 frequency band and / or the GPS L1 frequency band. The resonance of the first wavelength corresponds to a quarter-wavelength mode, so that the antenna assembly can cover the B32 frequency band and / or the GPS L1 frequency band.

[0044] The resonance of the second wavelength can be the resonance of the WIFI2.4 frequency band. The resonance of the second wavelength corresponds to a quarter-wavelength mode, so that the antenna assembly can cover the WIFI2.4 frequency band.

[0045] The resonance of the third wavelength can be the resonance of the N77 frequency band and / or the N78 frequency band and / or the N79 frequency band. The resonance of the third wavelength corresponds to a quarter-wavelength mode, so that the antenna assembly can cover the N77 frequency band and / or the N78 frequency band and / or the N79 frequency band.

[0046] The resonance of the fourth wavelength can be the resonance of the GPS L5 frequency band. The resonance of the fourth wavelength corresponds to a quarter-wavelength mode, so that the antenna assembly can cover the GPS L5 frequency band.

[0047] In some possible implementation manners, as Figure 1 shown, the first radiation segment 100 further includes a third feeding point 104, and the third feeding point 104 is arranged between the first feeding point 103 and the second feeding point 203; a resonance of a fifth wavelength is generated between the third feeding point 104 and the first end of the first radiation segment 100.

[0048] Among them, the third feed point 104 is disposed between the first feed point 103 and the second feed point 203. The distance between the setting position of the third feed point 104 and the first feed point 103 can be greater than the distance between the setting position of the third feed point 104 and the second feed point 203, the distance between the setting position of the third feed point 104 and the first feed point 103 can be equal to the distance between the setting position of the third feed point 104 and the second feed point 203, and the distance between the setting position of the third feed point 104 and the first feed point 103 can be less than the distance between the setting position of the third feed point 104 and the second feed point 203. As long as the requirements of the antenna assembly can be met, it can be set at any position.

[0049] In some possible implementation manners, the resonance of the fifth wavelength corresponds to a quarter-wavelength mode.

[0050] In an exemplary embodiment of the present disclosure, the resonance of the fifth wavelength can be a resonance in the WIFI5G and / or WIFI6E frequency bands. The resonance of the fifth wavelength corresponds to a quarter-wavelength mode, so that the antenna assembly can cover the WIFI5G and / or WIFI6E frequency bands.

[0051] In some possible implementation manners, the resonance of the first wavelength is a resonance in the low frequency and / or the first GPS frequency band; the resonance of the second wavelength is a resonance in the WIFI2.4 frequency band; the resonance of the third wavelength is a resonance in the high frequency or 5G frequency band; the resonance of the fourth wavelength is a resonance in the second GPS frequency band.

[0052] In an exemplary embodiment of the present disclosure, the resonance of the first wavelength is a resonance in the low frequency and / or the first GPS frequency band. For example, the low frequency can be the B32 frequency band, and the first GPS frequency band can be the GPS L1 frequency band. The antenna assembly can cover the B32 frequency band and / or the GPS L1 frequency band.

[0053] The resonance of the second wavelength is a resonance in the WIFI2.4 frequency band, and the antenna assembly can cover the WIFI2.4 frequency band.

[0054] The resonance of the third wavelength is a resonance in the high frequency or 5G frequency band. For example, the high frequency or 5G frequency band can be the N77 frequency band and / or the N78 frequency band and / or the N79 frequency band. The antenna assembly can cover the N77 frequency band and / or the N78 frequency band and / or the N79 frequency band.

[0055] The resonance of the fourth wavelength is a resonance in the second GPS frequency band. For example, the second GPS frequency band can be the GPS L5 frequency band, and the antenna assembly can cover the GPS L5 frequency band.

[0056] In some possible implementation manners, the resonance of the fifth wavelength is a resonance in the WIFI5G and / or WIFI6E frequency bands.

[0057] In an exemplary embodiment of the present disclosure, the resonance of the fifth wavelength is the resonance of the WIFI 5G and / or WIFI 6E frequency bands. The antenna assembly can cover the WIFI 5G and / or WIFI 6E frequency bands and can cover the frequency range of 5.2 GHz - 7 GHz.

[0058] In some possible implementation manners, as Figure 1 shown, the first feeding point 103 is connected to a first matching circuit, and the first matching circuit is used to achieve impedance matching for the first wavelength resonance and the second wavelength resonance.

[0059] In an embodiment of the present disclosure, the first feeding point 103 can be fed through the first matching circuit. When feeding the first feeding point 103, the antenna assembly can cover the B32 frequency band, the GPS L1 frequency band, and the WIFI 2.4G frequency band, and the frequency covered by the antenna assembly is 1.2 GHz - 2.5 GHz.

[0060] In some possible implementation manners, as Figure 1 shown, the first matching circuit includes: a first matching unit, a first end of the first matching unit is connected to the first feeding point 103, a second end of the first matching unit is connected to a first feed source 105, and the first matching unit is used to achieve impedance matching; a second matching unit, a first end of the second matching unit is connected to the first matching unit, a second end of the second matching unit is grounded, and the second matching unit is used to achieve parallel impedance matching.

[0061] Wherein, the first matching unit includes a first capacitor C1 and a second inductor L2. A first end of the first capacitor C1 is connected to the first feed source 105, a second end of the first capacitor C1 is connected to a first end of the second inductor L2, and a second end of the second inductor L2 is connected to the first feeding point 103; the second matching unit includes a second capacitor C2 and a first inductor L1. A first end of the second capacitor C2 is connected to the first end of the first capacitor C1, a second end of the second capacitor C2 is grounded, a first end of the first inductor L1 is connected to the second end of the second inductor L2, and a second end of the first inductor L1 is grounded.

[0062] In an embodiment of the present disclosure, the first feeding point 103 can be fed through the first matching circuit. When feeding the first feeding point 103, the antenna assembly can cover the B32 frequency band, the GPS L1 frequency band, and the WIFI 2.4G frequency band, and the frequency covered by the antenna assembly is 1.2 GHz - 2.5 GHz.

[0063] In some possible implementation manners, as Figure 1As shown, the second feed point 203 is connected to a second matching circuit, and the second matching circuit is used to achieve the resonant impedance matching of the third wavelength, the resonant impedance matching of the fourth wavelength, isolate the resonance of the third wavelength and the fourth wavelength, and isolate the resonance of the fifth wavelength.

[0064] In the embodiments of the present disclosure, the second feed point 203 can be fed through the second matching circuit. When feeding the second feed point 203, the antenna assembly can cover the N77 / 78 / 79 frequency bands and the GPS L5 frequency band, and the frequencies covered by the antenna assembly are 1.175 GHz - 1.2 GHz and 3 GHz - 5 GHz; at the same time, filter out the signals covering the WIFI 5G frequency band and the 6E frequency band.

[0065] In some possible implementation manners, as Figure 1 shown, the second matching circuit includes: a third matching unit, the first end of the third matching unit is connected to the second feed point 203, and the second end of the third matching unit is connected to a second feed source 204; and, a first filter, one end of the first filter is connected to the second feed point 203, and the other end of the first filter is grounded.

[0066] Among them, the third matching unit includes a third capacitor C5 and a third inductor L4. The first end of the third capacitor C5 is connected to the second feed point 203, the second end of the third capacitor C5 is connected to the first end of the third inductor L4, and the second end of the third inductor L4 is connected to the second feed source 204.

[0067] The first filter includes a fourth capacitor C4. The first end of the fourth capacitor C4 is connected to the second feed point 203, and the second end of the fourth capacitor C4 is grounded. The first filter is used to filter out the WIFI 5G and / or WIFI 6E frequency bands covered by the antenna assembly when feeding the third feed point 104 through the corresponding matching circuit.

[0068] The first filter adopts a low-pass filter, also known as a high-frequency shear filter, a treble cut filter, a Low-pass filter. A low-pass filter is a filter that allows signals below the cut-off frequency to pass through, but signals above the cut-off frequency cannot pass through.

[0069] The first filter filters out the signals of the WIFI 5G and / or WIFI 6E frequency bands covered by the antenna when feeding the third feed point 104 through the corresponding matching circuit.

[0070] The above antenna assembly can achieve Figure 3 the echo loss performance of the antenna assembly shown. Figure 3In S2.2, it represents the return loss of the antenna covering the WIFI 5G and 6E frequency bands; in S2.3, it represents the isolation between the antenna covering the WIFI 5G and 6E frequency bands and the antenna covering the GPS L5 and N77 / 78 / 79 frequency bands; in S3.3, it represents the return loss of the antenna covering the GPS L5 and N77 / 78 / 79 frequency bands.

[0071] In the embodiment of the present disclosure, the second feeding point 203 can be fed through the second matching circuit. When feeding at the second feeding point 203, the antenna assembly covers the N77 / 78 / 79 frequency bands and the GPS L5 frequency band, and the frequencies covered by the antenna assembly are 1.175 GHz - 1.2 GHz and 3 GHz - 5 GHz; at the same time, the signals covering the WIFI 5G frequency band and the 6E frequency band are filtered out.

[0072] In some possible implementation manners, such as Figure 1 shown, the third feeding point 104 is connected to the third matching circuit, and the third matching circuit is used to achieve the fifth wavelength resonance impedance matching and isolate the resonance of the second wavelength.

[0073] In the embodiment of the present disclosure, the third feeding point 104 can be fed through the third matching circuit. When feeding at the third feeding point 104, the antenna assembly covers the WIFI 5G frequency band and the WIFI 6E frequency band, and the frequencies covered by the antenna assembly are 5.2 GHz - 7 GHz; at the same time, the signals covering the B32 frequency band, the GPS L1 frequency band and the WIFI 2.4G frequency band are filtered out.

[0074] In some possible implementation manners, such as Figure 1 shown, the third matching circuit includes: a fourth matching unit, the first end of the fourth matching unit is connected to the third feeding point 104, and the second end of the fourth matching unit is connected to a third feeding source 106; and, a second filter, one end of the second filter is connected to the third feeding point 104, and the other end of the second filter is grounded.

[0075] Among them, the fourth matching unit includes: a fifth capacitor C3, the first end of the fifth capacitor C3 is connected to the third feeding point 104, and the second end of the fifth capacitor C3 is connected to the third feeding source 106.

[0076] The second filter includes a fifth capacitor C3 and a fourth inductor L3, the first end of the fourth inductor L3 is connected to the second end of the fifth capacitor C3, and the second end of the fourth inductor L3 is grounded.

[0077] The second filter is used to filter out the signals of the B32 frequency band, the GPS L1 frequency band and the WIFI 2.4G frequency band covered by the antenna assembly when feeding at the first feeding point 103 through the corresponding matching circuit.

[0078] The second filter uses a high-pass filter, also known as a low-cut filter or a low-impedance filter, a High-pass filter, which allows frequencies above a certain cut-off frequency to pass through while greatly attenuating lower frequencies.

[0079] The second filter filters out the influence of the B32 band, the GPS L1 band, and the WIFI 2.4G band.

[0080] The above antenna assembly can achieve Figure 2 the echo loss performance of the shown antenna assembly. Figure 2 In S1.1, it represents the echo loss of the antenna covering the B32 band, the GPS L1 band, and the WIFI 2.4G band; S2.1 represents the isolation between the antenna covering the B32 band, the GPS L1 band, and the WIFI 2.4G band and the antenna covering the WIFI 5G band and the WIFI 6E band; S2.2 represents the echo loss of the antenna covering the WIFI 5G band and the WIFI 6E band.

[0081] In the embodiment of the present disclosure, the third feeding point 104 can be fed through the third matching circuit. When feeding at the third feeding point 104, the antenna assembly covers the WIFI 5G band and the WIFI 6E band, and the frequencies covered by the antenna assembly are 5.2 GHz - 7 GHz; at the same time, the signals covering the B32 band, the GPS L1 band, and the WIFI 2.4G band are filtered out.

[0082] Figure 4 It is an efficiency curve diagram of an antenna shown according to an exemplary embodiment. Figure 4 In it, AC1 represents the efficiency curve of the antenna covering the B32 band, the GPS L1 band, and the WIFI 2.4G band; AC2 represents the efficiency curve of the antenna covering the WIFI 5G band and the 6E band; AC3 represents the efficiency curve of the antenna covering the GPS L5 band and the N77 / 78 / 79 bands. The efficiency of the antenna in each band can meet the conventional standards of existing mobile terminal antennas.

[0083] Based on the same inventive concept, the present disclosure also provides a terminal device including the antenna assembly in any of the above embodiments.

[0084] Among them, the terminal device can be a mobile phone, a tablet computer, a laptop computer, a smart bracelet, a smart watch, a smart helmet, a smart glasses, etc. The terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile network (PLMN), etc. The embodiments of the present disclosure do not limit this.

[0085] Figure 5 FIG. is a schematic diagram of a partial structure of a terminal device shown according to an exemplary embodiment. Here, the terminal device is described as a mobile phone.

[0086] In the past three decades, mobile communication has developed rapidly, experiencing generation after generation of technological innovations. As the entrance to the Internet, mobile phones are also undergoing major changes. From the "big brother" of the first-generation mobile communication to the digital mobile phone of the second-generation mobile communication, to the mobile multimedia mobile phone of the third-generation mobile communication, to the multi-functional smart phone of the fourth-generation mobile communication system, and then to the 5G high-rate multi-functional mobile phone, mobile phone antennas are gradually developing in the directions of miniaturization, multi-band, and full-metal frames.

[0087] At present in China, there are 2G, 3G, and LTE (4G) systems. The 2G system uses 1710 - 1850 MHz, the 3G system uses the frequency band 1880 - 2170 MHz, and the LTE (4G) system uses 2300 - 2690 MHz. China's wireless communication system currently covers the frequency band of 1710 - 2690 MHz. At the same time, the world has issued a notice on matters related to the use of the 3300 MHz - 3800 MHz and 4400 MHz - 5000 MHz frequency bands for the fifth-generation mobile communication system, indicating that the world is about to enter the 5G era. As the representative of mobile communication, mobile phones will surely lead the trend of the 5G era. The fifth-generation mobile communication technology (5G) will be commercially available on a large scale in 2020. In the next few years, new mobile terminal antennas and base station antennas will have a very broad application market.

[0088] 5G is divided into low-frequency below 6 GHz (Sub-6GHz) and high-frequency above 24 GHz (usually referred to as the millimeter wave of 5G). Compared with the current 4G, 5G has many advantages, such as high transmission rate, low latency, and high reliability, etc.

[0089] 3GPP has announced that the three frequency bands for 5G Sub-6GHz are: N77 from 3.3 to 4.2 GHz, N78 from 3.3 to 3.8 GHz, and N79 from 4.4 to 5.0 GHz. Each country can select the specific frequency band to be used from the above three frequency bands according to the specific situation. On November 9, 2017, China's Ministry of Industry and Information Technology announced the following three frequency bands: 3.3 GHz - 3.4 GHz, 3.4 - 3.6 GHz, and 4.8 GHz - 5 GHz as the operating frequency bands for China's 5G system.

[0090] As Figure 5 shown, the terminal device has a cube-like shape and may include a frame 10 and a middle frame 20. The frame 10 can be installed on the middle frame 20. The frame 10 can be divided into an upper frame, a lower frame, a left frame, and a right frame, and these frames are connected to each other, and a certain arc or chamfer can be formed at the connection.

[0091] The terminal device also includes a printed circuit board (PCB) disposed inside. Electronic components can be provided on the PCB, and the electronic components can include capacitors, inductors, resistors, processors, cameras, flashlights, microphones, batteries, etc., but are not limited thereto.

[0092] At least a part of the frame 10 is a radiator.

[0093] The frame 10 can be a metal frame, such as metals like copper, magnesium alloy, stainless steel, etc., or a plastic frame, a glass frame, a ceramic frame, etc., or a frame combined with metal and plastic.

[0094] Insulating materials can be filled between the first radiation section 100 and the middle frame 20, and insulating materials can also be filled between the second radiation section 200 and the middle frame 20. The insulating materials can be plastics, rubbers, ceramics, etc. The filled insulating materials can improve the stability of the overall structure of the terminal device.

[0095] As Figure 5 shown, the radiator can be located at the top of the terminal device.

[0096] In the present disclosure, a terminal device is provided, in which a single slot incorporates multiple frequency bands, achieving the design of an antenna with multiple frequency bands in a single slot, covering numerous frequency bands from 1.2G to 7G. The radiator 1000 includes a first radiation segment 100 and a second radiation segment 200 located on both sides of the slot. The first end of the first radiation segment 100 is connected to the slot, the second end of the first radiation segment 100 is grounded, the first end of the second radiation segment 200 is connected to the slot, and the second end of the second radiation segment 200 is grounded; the first radiation segment 100 is provided with a first feed point 103, and the second radiation segment 200 is provided with a second feed point 203; a resonance with a first wavelength is generated between the first end and the second end of the first radiation segment 100; a resonance with a second wavelength is generated between the first feed point 103 and the first end of the first radiation segment 100; a resonance with a third wavelength is generated between the second feed point 203 and the first end of the second radiation segment 200; a resonance with a fourth wavelength is generated between the first end and the second end of the second radiation segment 200. The present disclosure meets the design requirements of an antenna that can accommodate more frequency bands under a single slot.

[0097] Figure 6 FIG. is a block diagram of a terminal device according to an exemplary embodiment. For example, the terminal 800 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0098] Referring to Figure 6 , the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0099] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0100] The memory 804 is configured to store various types of data to support the operation of the terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, and the like. The memory 804 can be implemented by 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 memory, flash memory, a magnetic disk, or an optical disk.

[0101] The power component 806 provides power to various components of the terminal 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal 800.

[0102] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen 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 not only sense the boundaries of the touch or swipe actions, but also detect the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

[0103] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when the terminal 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting audio signals.

[0104] The I / O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which can be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a power-on button, and a lock button.

[0105] The sensor assembly 814 includes one or more sensors for providing an assessment of the status of the terminal 800 in various aspects. For example, the sensor assembly 814 can detect the on / off state of the terminal 800, the relative positioning of components, such as the display and keypad of the terminal 800. The sensor assembly 814 can also detect a change in the position of the terminal 800 or a component of the terminal 800, the presence or absence of user contact with the terminal 800, the orientation or acceleration / deceleration of the terminal 800, and the temperature change of the terminal 800. The sensor assembly 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0106] The communication component 816 is configured to facilitate communication between the terminal 800 and other devices in a wired or wireless manner. The terminal 800 can access a wireless network based on communication standards, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0107] In an exemplary embodiment, the terminal 800 can be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above method.

[0108] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the above instructions can be executed by the processor 820 of the terminal 800 to complete the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0109] It can be understood that in this disclosure, "a plurality of" means two or more, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms of "a", "the", and "said" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0110] It can be further understood that the terms "first", "second", etc. are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or degree of importance. In fact, the expressions such as "first" and "second" can be used interchangeably completely. For example, without departing from the scope of this disclosure, the first information can also be called the second information, and similarly, the second information can also be called the first information.

[0111] It can be further understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0112] It can be further understood that unless otherwise specified, "connection" includes direct connection without other components between the two, and also includes indirect connection with other elements between the two.

[0113] It can be further understood that although the operations are described in a specific order in the drawings in the embodiments of this disclosure, it should not be understood as requiring these operations to be performed in the specific order shown or in a serial order, or requiring all the operations shown to obtain the desired result. In a specific environment, multitasking and parallel processing may be beneficial.

[0114] Those skilled in the art will readily think of other embodiments of this disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure, which follow the general principles of this disclosure and include the common general knowledge or conventional technical means in this technical field that are not disclosed in this disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of this disclosure are pointed out by the following scope of rights.

[0115] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An antenna assembly, characterized in that, the antenna assembly includes: a radiator, including a first radiation section and a second radiation section located on both sides of a slit, a first end of the first radiation section is connected to the slit, a second end of the first radiation section is grounded, a first end of the second radiation section is connected to the slit, and a second end of the second radiation section is grounded; a first feeding point is provided on the first radiation section, and a second feeding point is provided on the second radiation section; a resonance of a first wavelength is generated between a first end and a second end of the first radiation section; a resonance of a second wavelength is generated between the first feeding point and the first end of the first radiation section; a resonance of a third wavelength is generated between the second feeding point and the first end of the second radiation section; a resonance of a fourth wavelength is generated between a first end and a second end of the second radiation section.

2. The antenna assembly according to claim 1, characterized in that, the resonance of the first wavelength, the resonance of the second wavelength, the resonance of the third wavelength, and the resonance of the fourth wavelength all correspond to a quarter-wavelength mode.

3. The antenna assembly according to claim 1, characterized in that, the first radiation section further includes a third feeding point, and the third feeding point is provided between the first feeding point and the second feeding point; a resonance of a fifth wavelength is generated between the third feeding point and the first end of the first radiation section.

4. The antenna assembly according to claim 3, characterized in that, the resonance of the fifth wavelength corresponds to a quarter-wavelength mode.

5. The antenna assembly according to claim 1, characterized in that, the resonance of the first wavelength is a resonance of a low frequency and / or the first GPS frequency band; the resonance of the second wavelength is a resonance of the WIFI 2.4 frequency band; the resonance of the third wavelength is a resonance of a high frequency or the 5G frequency band; the resonance of the fourth wavelength is a resonance of the second GPS frequency band.

6. The antenna assembly according to claim 3, characterized in that, the resonance of the fifth wavelength is a resonance of the WIFI 5G and / or WIFI 6E frequency band.

7. The antenna assembly according to claim 1, characterized in that, the first feeding point is connected to a first matching circuit, and the first matching circuit is used to achieve impedance matching of the first wavelength resonance and impedance matching of the second wavelength resonance.

8. The antenna assembly according to claim 7, characterized in that, the first matching circuit includes: a first matching unit, a first end of the first matching unit is connected to the first feeding point, a second end of the first matching unit is connected to a first feed source, and the first matching unit is used to achieve impedance matching; a second matching unit, a first end of the second matching unit is connected to the first matching unit, a second end of the second matching unit is grounded, and the second matching unit is used to achieve parallel impedance matching.

9. The antenna assembly according to claim 8, characterized in that, the first matching unit includes a first capacitor and a second inductor, a first end of the first capacitor is connected to the first feed source, a second end of the first capacitor is connected to a first end of the second inductor, and a second end of the second inductor is connected to the first feeding point; The second matching unit includes a second capacitor and a first inductor. A first end of the second capacitor is connected to a first end of the first capacitor. A second end of the second capacitor is grounded. A first end of the first inductor is connected to a second end of the second inductor. A second end of the first inductor is grounded.

10. The antenna assembly according to claim 3, wherein, the second feeding point is connected to a second matching circuit, and the second matching circuit is configured to achieve impedance matching for the third-wavelength resonance, impedance matching for the fourth-wavelength resonance, isolate the resonances of the third wavelength and the fourth wavelength, and isolate the resonance of the fifth wavelength.

11. The antenna assembly according to claim 10, wherein, the second matching circuit includes: a third matching unit, a first end of the third matching unit is connected to the second feeding point, and a second end of the third matching unit is connected to a second feeding source; and, a first filter, one end of the first filter is connected to the second feeding point, and the other end of the first filter is grounded.

12. The antenna assembly according to claim 3, wherein, the third feeding point is connected to a third matching circuit, and the third matching circuit is configured to achieve impedance matching for the fifth-wavelength resonance and isolate the resonance of the second wavelength.

13. The antenna assembly according to claim 12, wherein, the third matching circuit includes: a fourth matching unit, a first end of the fourth matching unit is connected to the third feeding point, and a second end of the fourth matching unit is connected to a third feeding source; and, a second filter, one end of the second filter is connected to the third feeding point, and the other end of the second filter is grounded.

14. A terminal device, wherein, it includes the antenna assembly according to any one of claims 1 to 13 above.

15. The terminal device according to claim 14, wherein, the terminal device includes a frame, and at least a part of the frame is the radiator.

16. The terminal device according to claim 15, wherein, the radiator is located at the top of the terminal device.

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