An antenna module and a terminal device

Abstract

The present disclosure relates to an antenna module and a terminal device. The antenna module comprises a radiation structure; a first feeding point connected with the radiation structure and combined with the radiation structure to transmit a wireless signal of a first frequency; a second feeding point connected with the radiation structure and arranged separately from the first feeding point; wherein the second feeding point is combined with the radiation structure to transmit a wireless signal of a second frequency; the second frequency is not equal to the first frequency. Through the embodiment of the present disclosure, the requirement of the antenna module to simultaneously transmit and receive wireless signals of different frequencies can be met, and the space occupied by the antenna module in the terminal device can be reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication technology, and in particular, to an antenna module and a terminal device. BACKGROUND

[0002] With the rapid development of communication technology and the demand for technology, terminal devices have entered the era of the 5th Generation mobile communication technology (5G). In the same terminal device appearance size, the terminal device needs to increase the layout space of the antenna module for transmitting and receiving 5G signals, which increasingly conflicts with the demand of the terminal device towards small clearance, high screen ratio, etc., and there is a problem of large space occupied by the antenna module in the terminal device. SUMMARY

[0003] The present disclosure provides an antenna module and a terminal device.

[0004] According to a first aspect of an embodiment of the present disclosure, an antenna module is provided, comprising:

[0005] a radiation structure;

[0006] a first feeding point connected with the radiation structure and combined with the radiation structure to transmit a wireless signal of a first frequency;

[0007] a second feeding point connected with the radiation structure and arranged separately from the first feeding point; wherein the second feeding point is combined with the radiation structure to transmit a wireless signal of a second frequency; the second frequency is not equal to the first frequency.

[0008] In some embodiments, the radiation structure comprises:

[0009] a first radiator connected with the first feeding point and the second feeding point respectively;

[0010] a second radiator arranged separately from and opposite to the first radiator and coupled with the first radiator;

[0011] wherein the first radiator, the second radiator and the first feeding point are combined to transmit the wireless signal of the first frequency; and the first radiator and the second feeding point are combined to transmit the wireless signal of the second frequency.

[0012] In some embodiments, the antenna module further comprises:

[0013] a first filter network connected with the first feeding point, for passing a first frequency wireless signal in the wireless signal when the radiation structure receives the wireless signal;

[0014] a second filter network connected with the second feeding point, for passing a second frequency wireless signal in the wireless signal when the wireless signal is received by the radiating structure.

[0015] In some embodiments, the antenna module further comprises:

[0016] a first radio frequency front-end component;

[0017] a first impedance matching network connected between the first filter network and the first radio frequency front-end component, and having an impedance in a preset range together with the first feeding point and the first radio frequency front-end component.

[0018] In some embodiments, the antenna module further comprises:

[0019] a second radio frequency front-end component;

[0020] a second impedance matching network connected between the second filter network and the second radio frequency front-end component, and having an impedance in the preset range together with the second feeding point and the second radio frequency front-end component.

[0021] In some embodiments, the first radiating body comprises a first ground end and a first floating end;

[0022] the second radiating body comprises a second ground end and a second floating end;

[0023] wherein the second floating end is separated from and oppositely arranged to the first floating end.

[0024] In some embodiments, a distance between the first floating end and the second floating end is in a range of 0.5 millimeter to 1.5 millimeter.

[0025] In some embodiments, a distance between the first feeding point and the first floating end is in a range of 5 millimeter to 16 millimeter;

[0026] a distance between the second feeding point and the second floating end is in a range of 20 millimeter to 21 millimeter.

[0027] In some embodiments, a clearance width of the radiating structure is in a range of 0.2 millimeter to 1 millimeter.

[0028] In some embodiments, a distance between the first feeding point and the second feeding point is in a range of 3 millimeter to 5 millimeter.

[0029] According to a second aspect of embodiments of the present disclosure, a terminal device is provided, the terminal device comprising:

[0030] a printed circuit board;

[0031] The antenna module of any one of claims 1-10, configured to transmit and receive wireless signals of different frequencies.

[0032] The first feeding point and the second feeding point of the antenna module are both located on the printed circuit board.

[0033] In some embodiments, the terminal device further comprises a bezel.

[0034] The first radiator and the second radiator of the antenna module are different parts of one side of the bezel.

[0035] In some embodiments, the printed circuit board comprises:

[0036] A ground layer surrounding an edge of the printed circuit board.

[0037] A distance between the bezel and the ground layer is a clearance width of the radiating structure.

[0038] In some embodiments, the terminal device further comprises:

[0039] A magnetic isolation module located between the bezel and the ground layer, configured to block electromagnetic signals generated by current backflow in the printed circuit board to the ground layer.

[0040] Embodiments of the present disclosure can provide the following beneficial effects:

[0041] The first feeding point can be combined with the radiating structure to transmit wireless signals of the first frequency, and the second feeding point can be combined with the radiating structure to transmit wireless signals of the second frequency. In this way, on the one hand, embodiments of the present disclosure can achieve the requirement of simultaneously transmitting and receiving wireless signals of different frequencies by using the radiating structure shared by the two feeding points. On the other hand, embodiments of the present disclosure do not need to separately set the radiating structure corresponding to the first frequency and the radiating structure corresponding to the second frequency, which realizes the sharing of the radiating structure, reduces the number of radiating structures, and further reduces the space occupied by the antenna module in the terminal device, thereby improving the space utilization of the terminal device.

[0042] 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 DRAWINGS

[0043] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0044] Figure 1 is a schematic diagram of an antenna module according to an exemplary embodiment Figure One .

[0045] Figure 2 is a schematic diagram of an antenna module according to an exemplary embodiment Figure Two .

[0046] Figure 3 is a schematic diagram of an antenna module according to an exemplary embodiment Figure Three .

[0047] Figure 4 is a schematic diagram of an antenna module according to an exemplary embodiment Figure Four .

[0048] Figure 5 is a schematic diagram of return loss of an antenna module according to an exemplary embodiment.

[0049] Figure 6 is a schematic diagram of efficiency of an antenna module to transmit and receive a second frequency wireless signal according to an exemplary embodiment.

[0050] Figure 7 is a schematic diagram of efficiency of an antenna module to transmit and receive a first frequency wireless signal according to an exemplary embodiment.

[0051] Figure 8 is a schematic diagram of an antenna module according to an exemplary embodiment Figure Five .

[0052] Figure 9 is a schematic diagram of a terminal device according to an exemplary embodiment Figure One .

[0053] Figure 10 is a schematic diagram of a terminal device according to an exemplary embodiment Figure Two .

[0054] Figure 11 is a block diagram of a terminal device according to an exemplary embodiment. DETAILED DESCRIPTION

[0055] The exemplary embodiments will now be described in detail with reference to the accompanying drawings. If desired, the same numbers can be used throughout the drawings and / or the written description to reference like components. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. The above terminology will include, where applicable, embodiments with limitations more general than the language "comprising" for example where a particular recited item alone can give us the desired property, for a device or structure, that is either explicitly described or is otherwise apparent from context. Otherwise, expressions of particular embodiments using terminology such as "comprising", "having", "containing", or "including" to describe components characterizing a device or structure are intended to be broad and inclusive, and are not limited to "consisting only of", "consisting essentially of", or "comprising only of" the specified components.

[0056] Figure 1 is a schematic diagram of a structure of an antenna module according to an exemplary embodiment Figure One . AsFigure 1 As shown in the figure, the antenna module comprises:

[0057] a radiation structure 101;

[0058] a first feeding point 102 connected with the radiation structure and combined with the radiation structure to transmit wireless signals of a first frequency;

[0059] a second feeding point 103 connected with the radiation structure and arranged separately from the first feeding point; wherein the second feeding point is combined with the radiation structure to transmit wireless signals of a second frequency; the second frequency is not equal to the first frequency.

[0060] In the embodiments of the present disclosure, the antenna module can realize communication between devices and is widely applied in terminal devices such as smart phones and smart watches.

[0061] The radiation structure described above is used for transmitting or receiving wireless signals. The radiation structure can be a structure formed by a flexible printed circuit (FPC) and can also be a structure formed by laser direct structuring (LDS). Of course, the conductive frame of the terminal device can also be directly used as the radiation structure in the embodiments of the present disclosure, so that the space occupied by the radiation structure in the terminal device can be reduced.

[0062] It should be noted that when the radiation structure is a structure formed by the FPC and the antenna module is arranged on the smart phone, the radiation structure can be located between the printed circuit board of the terminal device and the back cover; when the radiation structure is a structure formed by the LDS and the antenna module is arranged on the terminal device, the radiation structure can be plated on the middle frame or the back shell of the smart phone through the LDS.

[0063] The first feeding point and the second feeding point described above can be arranged on a circuit board, which includes but is not limited to a printed circuit board (PCB) of the terminal device.

[0064] It should be noted that the first feeding point and the second feeding point can both transmit the first electric signal generated by the radio frequency front-end component of the antenna module to the radiation structure, so that the radiation structure radiates wireless signals under the excitation of the first electric signal; or can also transmit the second electric signal to the radio frequency front-end component of the antenna module after the radiation structure converts the received wireless signals into the second electric signal, to realize the reception of the wireless signals and subsequent processing such as signal decoding.

[0065] In the embodiments of the present disclosure, the first feeding point and the second feeding point are separately arranged, and the two feeding points are feeding points for transmitting signals of different frequencies. For example, the first feeding point is a feeding point for transmitting a frequency in a GPS L5 frequency band, and the second feeding point is a feeding point for transmitting a frequency in a Sub-6GHz frequency band; or the first feeding point is a feeding point for transmitting a frequency in a Sub-6GHz frequency band, and the second feeding point is a feeding point for transmitting a frequency in a GPS L5 frequency band, which is not limited in the embodiments of the present disclosure.

[0066] In the embodiments of the present disclosure, the first feeding point is combined with the radiation structure to transmit a wireless signal of the first frequency.

[0067] For example, the first frequency can be a frequency in a range of 2515MHz-2675MHz corresponding to an N41 frequency band, can also be a frequency in a range of 3400MHz-3600MHz corresponding to an N78 frequency band, and can also be a frequency in a range of 4800MHz-4900MHz corresponding to an N79 frequency band.

[0068] In the embodiments of the present disclosure, the second feeding point is combined with the radiation structure to transmit a wireless signal of the second frequency.

[0069] For example, the second frequency can be a frequency in a range of 1176.45MHz±1.023MHz corresponding to a GPS L5 frequency band.

[0070] Through the embodiments of the present disclosure, on the one hand, the radiation structure can be shared by the two feeding points to realize the requirement of simultaneously transmitting wireless signals of different frequencies in different frequency bands. On the other hand, the embodiments of the present disclosure do not need to separately arrange a radiation structure corresponding to the first frequency and a radiation structure corresponding to the second frequency, so that the number of arranged radiation structures can be reduced, and the space occupied by the antenna module in the terminal device can be reduced, and the space utilization of the terminal device can be improved.

[0071] In some embodiments, as shown in FIG. 1, Figure 2 The radiation structure includes:

[0072] The first radiator 101b is connected with the first feeding point and the second feeding point respectively.

[0073] The second radiator 101a is arranged opposite to the first radiator and coupled with the first radiator.

[0074] The first radiator, the second radiator and the first feeding point are combined to transmit a wireless signal of the first frequency; and the first radiator and the second feeding point are combined to transmit a wireless signal of the second frequency.

[0075] In the embodiments of the present disclosure, the first radiator is a part of the radiation structure shared by the first feeding point and the second feeding point. In the process of signal transmission using the first radiator or the combination of the first radiator and the second radiator, the combined length of the first radiator and the second radiator is greater than the length of the first radiator. That is, different combinations can change the length of the radiator. The length of the radiator is related to the wavelength of the radiation. Therefore, whether the second radiator participates in radiation can realize the reception and transmission of wireless signals of different frequencies.

[0076] It should be noted that the first frequency is greater than the second frequency. By coupling the first radiator and the second radiator, the high-frequency mode can be additionally increased to expand the frequency of the antenna module for receiving and transmitting wireless signals, so that the antenna module can receive and transmit wireless signals of higher frequency.

[0077] In some embodiments, as shown in Figure 3 The antenna module further comprises:

[0078] The first filter network 104 is connected with the first feeding point 102, and is used for allowing the first frequency wireless signal in the wireless signal to pass through when the radiation structure receives the wireless signal.

[0079] The second filter network 105 is connected with the second feeding point 103, and is used for allowing the second frequency wireless signal in the wireless signal to pass through when the radiation structure receives the wireless signal.

[0080] It should be noted that, in the process of receiving and transmitting wireless signals by sharing one radiation structure by two feeding points, the converted electrical signals of the radiation structure transmitted to the radio frequency front-end component of the antenna module through the first feeding point and the second feeding point will affect each other, and thus there is a problem of low signal isolation. Based on this, the embodiments of the present disclosure set the first filter network and the second filter network, so that the first filter network filters out the second frequency wireless signal through the first frequency wireless signal, and the second filter network filters out the first frequency wireless signal through the second frequency wireless signal. In this way, the mutual influence between signals when the two feeding points share one radiation structure to simultaneously receive and transmit wireless signals can be reduced, and the isolation between signals is effectively increased, so that the antenna module can better realize the simultaneous reception and transmission of wireless signals.

[0081] In the embodiments of the present disclosure, the first filter network and the second filter network can be set according to the characteristics of different frequencies of the received and transmitted wireless signals. When the first frequency is greater than the second frequency, the first filter network can be set as a high-pass filter network for filtering out wireless signals lower than the first frequency, and the second filter network can be set as a low-pass filter network for filtering out wireless signals higher than the second frequency. In this way, the first filter network and the second filter network can filter out the wireless signals of the frequency that causes interference, greatly reducing the interference between signals.

[0082] It should be noted that the first filter network and the second filter network can be formed by inductance and / or capacitance. For example, the first filter network and the second filter network can be formed by parallel capacitance or series inductance. The first filter network and the second filter network can also be formed by a wave trap for eliminating signals of unwanted frequencies in the circuit.

[0083] In the embodiments of the present disclosure, the two filter networks are designed to filter signals of different frequencies. When both the two filter networks are LC circuits, and the first frequency is greater than the second frequency, the inductance and the capacitance in the first filter network can be in series and the inductance is grounded; the inductance and the capacitance in the second filter network can be in series and the capacitance is grounded, and meanwhile the inductance value and / or the capacitance value in the first filter network are different. For example, the capacitance value in the first filter network is greater than the capacitance value in the second filter network. When both the two filter networks are formed by wave traps, and the first frequency is greater than the second frequency, the stopband cutoff frequency of the first filter network can be set to be less than the stopband cutoff frequency of the second filter network.

[0084] In some embodiments, as shown in FIG. 1, the antenna module further includes: Figure 4

[0085] a first radio frequency front-end component 107;

[0086] a first impedance matching network 106 connected between the first filter network 104 and the first radio frequency front-end component 107, and having an impedance together with the first feed point and the first radio frequency front-end component within a preset range;

[0087] In this way, the embodiments of the present disclosure use the first impedance matching network, so that the energy generated by the first radio frequency front-end component can be radiated out through the radiating structure to the greatest extent, thereby reducing transmission damage and improving the transceiving efficiency of the first frequency.

[0088] In the embodiments of the present disclosure, when the output impedance of the first radio frequency front-end component is 50 ohms, the first impedance matching network can match the impedance of the first frequency to the vicinity of the 50-ohm region in the Smith chart by using Smith chart matching elements. In this way, the energy generated by the first radio frequency front-end component can be radiated out through the radiating structure to the greatest extent. It should be noted that the network structure of the first impedance matching network is not fixed, as long as the impedance of the first frequency can be matched to the vicinity of the 50-ohm region in the Smith chart.

[0089] For example, the preset range can be set according to actual needs, for example, the preset range can be set to be within 90 ohms to 110 ohms.

[0090] It should be noted that, Figure 4 ​The impedance matching network and the filter network of the embodiments of the present disclosure are not limited to Figure 4 the connecting components and the connecting relationship in the above formulae, as long as the requirements of the impedance matching network and the filter network of the present application can be met. For example, Figure 4 in the above formulae, C1 can be 2.5F, C2 can be 5.2F, C3 can be 0.5F, and C4 can be 0.5F; L1 can be 25H, L2 can be 35H, L3 can be 5.1H, and L4 can be 3.5H.

[0091] In some embodiments, the antenna module further comprises:

[0092] a second radio frequency front-end component;

[0093] a second impedance matching network connected between the second filter network and the second radio frequency front-end component, and having an impedance in a preset range together with the second feeding point and the second radio frequency front-end component.

[0094] In this way, the second impedance matching network can be used to enable the energy generated by the second radio frequency front-end component to be radiated out to the maximum extent through the radiating structure, thereby reducing transmission damage and improving the transceiving efficiency of the second frequency.

[0095] In the embodiments of the present disclosure, when the output impedance of the second radio frequency front-end component is 50 ohms, the second impedance matching network can use Smith chart matching elements to match the impedance of the second frequency to the vicinity of the 50-ohm region in the Smith chart. In this way, the energy generated by the second radio frequency front-end component can be radiated out to the maximum extent through the radiating structure. It should be noted that the network structure of the second impedance matching network is not fixed, as long as it can match the impedance of the second frequency to the vicinity of the 50-ohm region in the Smith chart.

[0096] As shown in Figure 5 , the abscissa is the frequency, with the unit of GHz; and the ordinate is the return loss, with the unit of dB. The solid line S11 is the return loss curve of the transceiving of the second frequency wireless signal after the second impedance matching network and the second filter network are set on the antenna module; S12 is the return loss curve of the transceiving of the first frequency wireless signal after the first impedance matching network and the first filter network are set on the antenna module; and S22 is the isolation curve between signals when the antenna module sets the corresponding impedance matching network and filter network to simultaneously transceive wireless signals. From Figure 5It can be seen that the antenna module transceiving wireless signals of the first frequency and the second frequency can achieve good impedance matching, so that the return loss of the wireless signals of the first frequency and the second frequency is close to 0; and the isolation between signals in the isolation curve can be less than 17.8 dB, so that the influence of the radiating structure on the simultaneous transceiving of the wireless signals of the two frequencies is greatly reduced.

[0097] Figure 6 The antenna efficiency diagram of the antenna module transceiving wireless signals of the second frequency; Figure 7 The antenna efficiency diagram of the antenna module transceiving wireless signals of the first frequency. The solid line represents the radiation efficiency of the antenna module, and the dashed line represents the total efficiency of the antenna module. From Figure 6 It can be seen that the total efficiency of the antenna module transceiving wireless signals of the second frequency can reach -5.45 dB, meeting the performance requirements of the antenna module transceiving the second frequency. From Figure 7 It can be seen that the total efficiency of the first frequency in the N41 frequency band, the N78 frequency band and the N79 frequency band can be above -3 dB, also meeting the performance requirements of the antenna module transceiving the first frequency.

[0098] In some embodiments, as shown in Figure 8 The first radiator includes a first ground end and a first suspended end 101b1.

[0099] The second radiator includes a second ground end and a second suspended end 101a1.

[0100] The second suspended end 101a1 is separated from and oppositely arranged to the first suspended end 101b1.

[0101] In the embodiments of the present disclosure, the first suspended end and the second suspended end are separately arranged. In some embodiments, as shown in Figure 8 The distance between the first suspended end 101b1 and the second suspended end 101a1 is in the range of 0.5 mm to 1.5 mm.

[0102] It should be noted that an isolation member can be arranged between the first suspended end and the second suspended end. The isolation member can be composed of non-conductive materials such as plastic or fiber.

[0103] In the embodiments of the present disclosure, the first ground end and the second ground end are located on the circuit board and are connected to the ground layer on the circuit board. The connection mode of the first ground end to the ground layer on the circuit board includes but is not limited to an antenna spring, an antenna thimble or welding, and the embodiments of the present disclosure are not limited.

[0104] In some embodiments, as shown in Figure 8As shown, the distance between the first feeding point 102 and the first suspended end 101b1 is in the range of 5mm to 16mm; the distance between the second feeding point 103 and the second suspended end 101a1 is in the range of 20mm to 21mm.

[0105] In some embodiments, as shown in the above one or more embodiments, the clearance width H of the radiation structure is in the range of 0.2mm to 1mm. Figure 8

[0106] In some embodiments, as shown in the above one or more embodiments, the distance between the first feeding point 102 and the second feeding point 103 is in the range of 3mm to 5mm. Figure 8

[0107] The present disclosure further provides a terminal device. As shown in the above one or more embodiments, the terminal device comprises: Figure 9

[0108] a printed circuit board 12;

[0109] the antenna module 11 in the above one or more embodiments, for receiving and transmitting wireless signals of different frequencies;

[0110] wherein the first feeding point and the second feeding point of the antenna module are both located on the printed circuit board.

[0111] In the present disclosure, the terminal device can be a wearable electronic device and a mobile terminal, the mobile terminal including a mobile phone, a notebook and a tablet computer, and the wearable electronic device including a smart watch, without limitation.

[0112] It should be noted that the clearance width of the radiation structure, the distance between the second feeding point and the second suspended end, the distance between the first feeding point and the first suspended end, the distance between the first suspended end and the second suspended end, and the distance between the first feeding point and the second feeding point in the above one or more embodiments of the antenna module are all based on a preferred design distance with the appearance size of the terminal device being 155mm in length, 77mm in width and 7mm in height. Of course, the above design distance can be adjusted adaptively according to the appearance size of different terminal devices, without limitation.

[0113] According to the present disclosure, the terminal device shares the radiation structure through two feeding points, which can meet the requirement of the terminal device for simultaneously receiving and transmitting wireless signals of different frequencies. On the other hand, the present disclosure does not need to separately set the radiation structure corresponding to the first frequency and the radiation structure corresponding to the second frequency, which can reduce the number of radiation structures, thereby reducing the space occupied by the antenna module in the terminal device and improving the space utilization of the terminal device.

[0114] In some embodiments, as shown in the above one or more embodiments, the clearance width H of the radiation structure is in the range of 0.2mm to 1mm. Figure 10 ​​​As shown, the terminal device further comprises a frame 13.

[0115] The first radiator and the second radiator of the antenna module are different parts of one side of the frame.

[0116] In this way, the frame is directly used as the radiating structure of the antenna module in the embodiments of the present disclosure, which can solve the problem of large space occupation of the terminal device caused by the additional radiating structure, further reduce the space occupation of the terminal device by the antenna module, and improve the space utilization of the terminal device.

[0117] The frame can be a frame with a conductive function formed of metal, alloy material or conductive plastic.

[0118] The shape of the frame can be set according to user requirements. For example, the frame of the terminal device can be set as a rectangular shell, and the embodiments of the present disclosure are not limited thereto.

[0119] In the embodiments of the present disclosure, the first radiator and the second radiator are different parts of one side of the frame. When the shape of the frame is a rectangular shape, the first radiator and the second radiator can be different parts of the short side of the frame, and can also be different parts of the long side of the frame, and the embodiments of the present disclosure are not limited thereto.

[0120] In other embodiments, the first radiator and the second radiator can be parts of adjacent sides of the frame. For example, when the shape of the frame is a rectangular shape, the first radiator can be a part of the long side of the frame, and the second radiator can be located in a part of the short side of the frame; or the first radiator can be a part of the short side of the frame, and the second radiator can be located in a part of the long side of the frame, and the embodiments of the present disclosure are not limited thereto.

[0121] In some embodiments, the length of the first radiator can be in the range of 18 mm to 25 mm; and the length of the second radiator can be in the range of 4 mm to 5 mm.

[0122] In some embodiments, the printed circuit board comprises:

[0123] A ground layer surrounding the edge of the printed circuit board;

[0124] The distance between the frame and the ground layer is the clearance width of the radiating structure.

[0125] In some embodiments, the terminal device further comprises:

[0126] A magnetic isolation module located between the frame and the ground layer, for blocking the electromagnetic signal generated by the current backflow in the printed circuit board to the ground layer. In this way, the magnetic isolation module in the embodiments of the present disclosure can reduce the interference of the electromagnetic signal generated by the current backflow in the printed circuit board to the antenna module, and further improve the efficiency of the terminal device in transmitting and receiving wireless signals.

[0127] In the embodiments of the present disclosure, the magnetic isolation module can be a module formed of a non-conductive material. The non-conductive material includes, but is not limited to, foam, fiber, or plastic, etc.

[0128] It should be noted that the "first" and "second" in the embodiments of the present disclosure are only for convenience of description and distinction, and have no other specific meaning.

[0129] Figure 11 is a block diagram of a terminal device according to an example embodiment. The terminal device can be, for example, 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.

[0130] Referring to Figure 11 , the terminal device can include one or more of the following components: a processing component 802, a memory 804, a power supply 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.

[0131] The processing component 802 usually controls overall operations of the terminal device, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 can include one or more processors 820 to execute instructions to complete all or part of steps of the methods described above. In addition, the processing component 802 can include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0132] The memory 804 is configured to store various types of data to support operations of the terminal device. Examples of the data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage devices 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.

[0133] The power supply component 806 supplies electrical power for various components of the terminal device. The power supply component 806 can include a power supply management system, one or more power sources, and other components associated with generating, managing and distributing electrical power for the terminal device.

[0134] The multimedia component 808 includes a screen providing an output interface between the terminal device and a user. In some embodiments, the screen can 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 an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and pressure related to the touching or sliding action. In some embodiments, the multimedia component 808 includes a front camera and / or a back camera. The front camera and / or the back camera can receive external multimedia data when the terminal device is in an operating mode, such as a shooting mode or a video mode. Each of the front and back camera can be a fixed optical lens system or have a focus and an optical zooming capability.

[0135] The audio component 810 is configured to output and / or input an audio signal. For example, the audio component 810 includes a microphone (MIC) configured to receive an external audio signal when the terminal device is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting an audio signal.

[0136] The I / O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0137] The sensor component 814 includes one or more sensors to provide various state assessments for the terminal device. For example, the sensor component 814 can detect an open / closed state of the terminal device, relative positioning of components, such as a display and a keypad of the terminal device, a change in position of the terminal device or a component of the terminal device, presence or absence of user contact with the terminal device, a change in orientation of the terminal device, acceleration / deceleration of the terminal device, and temperature changes of the terminal device. The sensor component 814 can include a proximity sensor configured to detect presence of a nearby object without any physical touch. The sensor component 814 can further include a light sensor such as a CMOS or CCD image sensor for use in an imaging application. In some embodiments, the sensor component 814 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0138] The communication component 816 is configured to facilitate wired or wireless communication between the terminal device and other devices. The terminal device can access a wireless network based on a communication standard, 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 the 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-Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.

[0139] In an exemplary embodiment, the terminal device 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, micro-controllers, microprocessors or other electronic elements, for performing the above-described methods.

[0140] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and a concept of the application. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0141] It is to be understood that the application is not limited to the precise details of construction and the exemplary embodiments described above and illustrated in the drawings. The scope of the application is to be determined by the terms of the following claims.

Claims

1. An antenna module, characterized by The antenna module comprises: a radiation structure; a first feeding point connected to the radiation structure and combined with the radiation structure to transmit wireless signals of a first frequency; a second feeding point connected to the radiation structure and arranged separately from the first feeding point; wherein the second feeding point is combined with the radiation structure to transmit wireless signals of a second frequency; the second frequency is not equal to the first frequency; a frame of a terminal device, multiplexed as the radiation structure; a clearance width of the radiation structure, being a distance between the frame and a ground layer surrounding an edge of a printed circuit board in the terminal device; a first impedance matching network is arranged between a first filter network and a first radio frequency front-end component in the antenna module; the first impedance matching network is composed of a first capacitor, a second capacitor, a first inductor and a second inductor, so that the impedance is matched to a 50-ohm region in a Smith chart; wherein the first capacitor and the first inductor are connected in series on a connection line between the first filter network and the first radio frequency front-end component; the second capacitor and the second inductor are both connected to the connection line at one end and grounded at the other end.

2. The antenna module of claim 1, wherein, The radiation structure comprises: a first radiator connected to the first feeding point and the second feeding point respectively; a second radiator arranged separately from and opposite to the first radiator and coupled with the first radiator; wherein the first radiator, the second radiator and the first feeding point are combined to transmit wireless signals of the first frequency; the first radiator and the second feeding point are combined to transmit wireless signals of the second frequency.

3. The antenna module of claim 2, wherein, The antenna module further comprises: a second filter network connected to the second feeding point, for passing through second frequency wireless signals in the wireless signals when the radiation structure receives the wireless signals; the first filter network is connected to the first feeding point, for passing through first frequency wireless signals in the wireless signals when the radiation structure receives the wireless signals.

4. The antenna module according to claim 3, wherein: the first impedance matching network has an impedance within a preset range together with the first feeding point and the first radio frequency front-end component.

5. The antenna module of claim 3, wherein, The antenna module further comprises: a second radio frequency front-end component; a second impedance matching network connected between the second filter network and the second radio frequency front-end component, and having an impedance within a preset range together with the second feeding point and the second radio frequency front-end component.

6. The antenna module of claim 2, wherein, The first radiator comprises a first ground end and a first suspended end; The second radiator comprises a second ground end and a second suspended end; wherein the second suspended end is arranged separately from and opposite to the first suspended end.

7. The antenna module of claim 6, wherein, The distance between the first suspended end and the second suspended end is within a range of 0.5 mm to 1.5 mm.

8. The antenna module of claim 6, wherein, The distance between the first feeding point and the first suspended end is within a range of 5 mm to 16 mm; The distance between the second feeding point and the second suspended end is within a range of 20 mm to 21 mm.

9. The antenna module of any one of claims 1 to 8, wherein, The clearance width of the radiation structure is within a range of 0.2 mm to 1 mm.

10. The antenna module of any one of claims 1 to 8, wherein, The distance between the first feeding point and the second feeding point is in a range of 3-5 mm.

11. A terminal device, comprising: The terminal device comprises: A printed circuit board; The antenna module of any one of claims 1-10, configured to receive and transmit wireless signals of different frequencies. The first feeding point and the second feeding point of the antenna module are both located on the printed circuit board.

12. The terminal device according to claim 11, characterized by The terminal device further comprises a bezel. The first radiator and the second radiator of the antenna module are different parts of one side of the bezel.

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