CN111244613A

CN111244613A - Antenna module and terminal equipment

Info

Publication number: CN111244613A
Application number: CN202010159224.2A
Authority: CN
Inventors: 何绍榕; 刘家荣
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-06-05

Abstract

The disclosure relates to an antenna module and a terminal device. The antenna module includes: a radiating structure; a first feeding point connected to the radiating structure and combined with the radiating structure to transmit a wireless signal of a first frequency; a second feeding point connected to the radiating structure and disposed apart from the first feeding point; wherein the second feed point is combined with the radiating structure to transmit a wireless signal at a second frequency; the second frequency is not equal to the first frequency. Through this disclosed embodiment can realize the antenna module and receive and dispatch different frequency radio signal's demand simultaneously, can also reduce the space that the antenna module occupy terminal equipment.

Description

Antenna module and terminal equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an antenna module and a terminal device.

Background

With the rapid development of communication technology and technological requirements, terminal devices enter the era of fifth-Generation mobile communication technology (the5th Generation mobile communication technology, 5G). On the same appearance size of the terminal equipment, the terminal equipment needs to increase the layout space of the antenna module for receiving and transmitting 5G signals, which conflicts with the requirements of the terminal equipment towards small clearance, high screen occupation ratio and the like, and the problem that the antenna module occupies a large space of the terminal equipment exists.

Disclosure of Invention

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

According to a first aspect of the embodiments of the present disclosure, there is provided an antenna module, including:

a radiating structure;

a first feeding point connected to the radiating structure and combined with the radiating structure to transmit a wireless signal of a first frequency;

a second feeding point connected to the radiating structure and disposed apart from the first feeding point; wherein the second feed point is combined with the radiating structure to transmit a wireless signal at a second frequency; the second frequency is not equal to the first frequency.

In some embodiments, the radiating structure comprises:

the first radiator is respectively connected with the first feeding point and the second feeding point;

the second radiator is separated from and arranged opposite to the first radiator and is coupled with the first radiator;

the first radiator, the second radiator and the first feed point are combined to transmit the wireless signal of the first frequency; the first radiator and the second feeding point are combined to transmit the wireless signal of the second frequency.

In some embodiments, the antenna module further comprises:

the first filter network is connected with the first feeding point and is used for allowing a first frequency wireless signal in the wireless signals to pass through when the wireless signals are received by the radiation structure;

and the second filter network is connected with the second feeding point and is used for allowing a second frequency wireless signal in the wireless signals to pass through when the wireless signals are received by the radiation structure.

In some embodiments, the antenna module further comprises:

a first radio frequency front end component;

and the first impedance matching network is connected between the first filter network and the first radio frequency front end component and has impedance within a preset range together with the first feed point and the first radio frequency front end component.

In some embodiments, the antenna module further comprises:

a second radio frequency front end component;

and the second impedance matching network is connected between the second filter network and the second radio frequency front end component and has impedance within the preset range together with the second feed point and the second radio frequency front end component.

In some embodiments, the first radiator comprises: a first ground terminal and a first free terminal;

the second radiator includes: a second ground terminal and a second free terminal;

wherein the second free end is separated from and arranged opposite to the first free end.

In some embodiments, the distance between the first free end and the second free end is in the range of 0.5 millimeters to 1.5 millimeters.

In some embodiments, a distance between the first feed point and the first free end is in a range of 5 millimeters to 16 millimeters;

the distance between the second feeding point and the second free end is in the range of 20 mm to 21 mm.

In some embodiments, the clearance width of the radiating structure is in the range of 0.2 mm to 1 mm.

In some embodiments, the distance between the first feeding point and the second feeding point is in the range of 3 mm to 5 mm.

According to a second aspect of the embodiments of the present disclosure, there is provided a terminal device, the terminal device including:

a printed circuit board;

the antenna module of any one of claims 1 to 10, configured to transceive 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.

In some embodiments, the terminal device further comprises: a frame;

the first radiator and the second radiator of the antenna module are different parts of the same side of the frame.

In some embodiments, the printed circuit board comprises:

a ground layer surrounding an edge of the printed circuit board;

the distance between the frame and the grounding layer is the clearance width of the radiation structure.

In some embodiments, the terminal device further comprises:

and the magnetism isolating module is positioned between the frame and the grounding layer and used for isolating electromagnetic signals generated by the current in the printed circuit board flowing back to the grounding layer.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the first feeding point can be combined with the radiating structure to transmit a wireless signal of a first frequency, and the second feeding point can be combined with the radiating structure to transmit a wireless signal of a second frequency. Therefore, on the one hand, the antenna module can meet the requirement of receiving and transmitting wireless signals with different frequencies simultaneously by the common radiation structure of the two feeding points. On the other hand, this disclosed embodiment does not need to set up the radiation structure that first frequency corresponds and the radiation structure that the second frequency corresponds respectively, has realized the sharing of radiation structure, can reduce the number that sets up radiation structure, and then reduces the antenna module and occupy terminal equipment's space, improves terminal equipment's space utilization.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a first schematic diagram of an antenna module according to an exemplary embodiment.

Fig. 2 is a second schematic diagram of an antenna module according to an exemplary embodiment.

Fig. 3 is a third schematic diagram of an antenna module according to an exemplary embodiment.

Fig. 4 is a fourth schematic diagram of an antenna module according to an exemplary embodiment.

Fig. 5 is a return loss diagram of an antenna module according to an exemplary embodiment.

Fig. 6 is a diagram illustrating the efficiency of the antenna module for transceiving the second frequency wireless signal according to an exemplary embodiment.

Fig. 7 is a diagram illustrating the efficiency of the antenna module for transceiving the wireless signal of the first frequency according to an exemplary embodiment.

Fig. 8 is a fifth schematic diagram of an antenna module according to an exemplary embodiment.

Fig. 9 is a first schematic diagram of a terminal device according to an exemplary embodiment.

Fig. 10 is a diagram two illustrating a terminal device according to an exemplary embodiment.

Fig. 11 is a block diagram illustrating a terminal device according to an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Fig. 1 is a first schematic structural diagram of an antenna module according to an exemplary embodiment. As shown in fig. 1, the antenna module includes:

a radiating structure 101;

a first feeding point 102 connected to the radiating structure and combined with the radiating structure to transmit a wireless signal of a first frequency;

a second feeding point 103 connected to the radiating structure and disposed apart from the first feeding point; wherein the second feeding point is combined with the radiating structure to transmit the wireless signal of the second frequency; the second frequency is not equal to the first frequency.

In the embodiment of the disclosure, the antenna module can realize communication between devices, and is widely applied to terminal devices such as smart phones and smart watches.

The radiating structure is used for transmitting or receiving wireless signals. The radiation structure may be a structure formed of a Flexible Printed Circuit (FPC) or a structure formed of a Laser Direct Structuring (LDS). Of course, the embodiment of the disclosure can also directly use the conductive frame of the terminal device as the radiation structure, so that the space occupied by the radiation structure on the terminal device can be reduced.

It should be noted that, when the radiation structure is a structure formed by an FPC and the antenna module is disposed on the smart phone, the radiation structure may be located between the printed circuit board and the rear cover of the terminal device; when the radiation structure is the structure that LDS formed, and the antenna module set up on terminal equipment, radiation structure accessible LDS plates on smart mobile phone's center or backshell.

The first feeding point and the second feeding point may be disposed on a Circuit Board, which includes but is not limited to a Printed Circuit Board (PCB) of the terminal device.

It should be noted that the first feeding point and the second feeding point can both transmit a first electrical signal generated by a radio frequency front end component of the antenna module to the radiation structure, so that the radiation structure radiates a wireless signal under excitation of the first electrical signal; or the received wireless signals can be converted into second electric signals by the radiation structure, and then the second electric signals are transmitted to the radio frequency front end component of the antenna module, so that the subsequent processing such as the reception of the wireless signals, the signal decoding and the like is realized.

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

In an embodiment of the disclosure, the first feeding point is combined with the radiating structure to transmit the wireless signal of the first frequency.

Illustratively, the first frequency may be a frequency in the range of 2515MHz to 2675MHz corresponding to the N41 frequency band, may also be a frequency in the range of 3400MHz to 3600MHz corresponding to the N78 frequency band, and may also be a frequency in the range of 4800MHz to 4900MHz corresponding to the N79 frequency band.

In an embodiment of the disclosure, the second feeding point is combined with the radiating structure to transmit the wireless signal of the second frequency.

Illustratively, the second frequency may be a frequency in the 1176.45MHz + -1.023 MHz range corresponding to the GPS L5 frequency band.

Through this disclosed embodiment, on the one hand can realize the antenna module and receive and dispatch the radio signal demand of different frequency channel internal frequencies simultaneously through two feed point sharing radiation structure. On the other hand, the radiation structure corresponding to the first frequency and the radiation structure corresponding to the second frequency do not need to be respectively arranged in the embodiment of the disclosure, the number of the radiation structures can be reduced, the space occupied by the antenna module on the terminal device is further reduced, and the space utilization rate of the terminal device is improved.

In some embodiments, as shown in fig. 2, the radiating structure comprises:

a first radiator 101b connected to the first feeding point and the second feeding point, respectively;

a second radiator 101a separated from and disposed opposite to the first radiator and coupled to the first radiator;

the first radiator, the second radiator and the first feed point are combined to transmit a wireless signal of a first frequency; the first radiator is combined with the second feed point to transmit the wireless signal of the second frequency.

In the embodiment of the present disclosure, the first radiator is a portion of the radiation structure shared by the first feeding point and the second feeding point. In the radiation structure, in the process of signal transmission by using the first radiator or the combination of the first radiator and the second radiator, the length of the combination of the first radiator and the second radiator is greater than that of the first radiator. That is, the length of the radiator can be changed by using different combinations. Whereas the length of the radiator is related to the wavelength of the radiation. Therefore, the receiving and sending of the wireless signals with different frequencies can be realized through whether the second radiator participates in the radiation.

It should be noted that the first frequency is greater than the second frequency. Through the coupling of the first radiator and the second radiator, the frequency of the antenna module for receiving and transmitting the wireless signals can be additionally increased by a high-frequency mode, so that the antenna module can receive and transmit the wireless signals with higher frequency.

In some embodiments, as shown in fig. 3, the antenna module further includes:

a first filter network 104 connected to the first feeding point 102, for passing a first frequency wireless signal of the wireless signals when the radiating structure receives the wireless signals;

and a second filter network 105 connected to the second feeding point 103, for passing a second frequency wireless signal of the wireless signals when the radiating structure receives the wireless signals.

It should be noted that, in the process of implementing transceiving of wireless signals by sharing one radiation structure by two feed points, there may be mutual influence in transmitting the electrical signal converted by the radiation structure to the radio frequency front end component of the antenna module through the first feed point and the second feed point, and then there is a problem of low isolation between signals. Based on this, the embodiment of the disclosure sets the first filter network and the second filter network, so that the first filter network filters the second frequency wireless signal through the first frequency wireless signal; the second filter network filters the first frequency wireless signals through the second frequency wireless signals. So, can reduce the condition of mutual influence between the signal when two feed points share a radiation structure can receive and dispatch radio signal simultaneously, effectively increase the isolation between the signal for the realization that antenna module can be better receives and dispatches radio signal simultaneously.

In the embodiment of the disclosure, the first filter network and the second filter network may be set according to the characteristic that the frequency of the received and transmitted wireless signal is different. When the first frequency is higher than the second frequency, the first filter network may be a high-pass filter network for filtering wireless signals lower than the first frequency, and the second filter network may be a low-pass filter network for filtering wireless signals higher than the second frequency. Therefore, the wireless signals of the frequency generating interference can be filtered based on the first filter network and the second filter network, and the interference between the signals is greatly reduced.

It should be noted that the first filter network and the second filter network may be formed by inductors and/or capacitors. For example, the first and second filter networks may be formed using parallel capacitance or series inductance. The first and second filter networks may also be formed by traps for cancelling signals of unwanted frequencies in the circuit.

In the embodiment of the present disclosure, the two filter networks are designed to filter signals with different frequencies. When the two filter networks are both LC circuits and the first frequency is higher than the second frequency, the inductor and the capacitor in the first filter network can be connected in series and the inductor is grounded; the inductor and capacitor in the second filter network may be connected in series and the capacitor grounded, while the inductance and/or capacitance values 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 the two filter networks are both composed of the wave trap and the first frequency is higher than the second frequency, the stop band cut-off frequency of the first filter network can be set to be lower than the stop band cut-off frequency of the second filter network.

In some embodiments, as shown in fig. 4, the antenna module further includes:

a first radio frequency front end component 107;

a first impedance matching network 106 connected between the first filter network 104 and the first rf front-end component 107, and having an impedance within a predetermined range together with the first feeding point and the first rf front-end component;

therefore, the first impedance matching network is used in the embodiment of the disclosure, so that energy generated by the first radio frequency front end component can be radiated out through the radiation structure to the greatest extent, transmission damage can be reduced, and the transceiving efficiency of the first frequency is improved.

In the disclosed embodiment, when the output impedance of the first rf front-end component is 50 ohms, the first impedance matching network may use a Smith chart (Smith chart) matching element to match the impedance of the first frequency to a region near the 50 ohms region of the Smith chart. Therefore, the energy generated by the first radio frequency front end component can be radiated out through the radiation structure to the maximum extent. The network structure of the first impedance matching network is not fixed, and it is sufficient to match the impedance of the first frequency to the vicinity of the 50 ohm region in the smith chart.

For example, the preset range may be set according to actual needs, for example, the preset range may be set to be in a range of 90 ohms to 110 ohms.

It should be noted that fig. 4 is only an exemplary embodiment of the present disclosure, and the impedance matching network and the filter network of the embodiment of the present disclosure are not limited to the connection devices and the connection relationships in fig. 4 as long as the requirements of the impedance matching network and the filter network of the present disclosure can be achieved. For example, in fig. 4C 1 may be 2.5F, C2 may be 5.2F, C3 may be 0.5F, C4 may be 0.5F; l1 can be 25H, L2 can be 35H, L3 can be 5.1H, and L4 can be 3.5H.

In some embodiments, the antenna module further comprises:

a second radio frequency front end component;

and the second impedance matching network is connected between the second filter network and the second radio frequency front end component and has impedance within a preset range together with the second feed point and the second radio frequency front end component.

Therefore, the second impedance matching network is used in the embodiment of the disclosure, so that energy generated by the second radio frequency front end component can be radiated out through the radiation structure to the greatest extent, transmission damage can be reduced, and the transceiving efficiency of the second frequency is improved.

In the disclosed embodiment, when the output impedance of the second rf front-end component is 50 ohms, the second impedance matching network may use a Smith chart (Smith chart) matching element to match the impedance of the second frequency to a region near the 50 ohms region of the Smith chart. Therefore, the energy generated by the second radio frequency front end component can be radiated out through the radiation structure to the maximum extent. The network structure of the second impedance matching network is not fixed, and it is sufficient to match the impedance of the second frequency to the vicinity of the 50 ohm region in the smith chart.

As shown in fig. 5, the abscissa is frequency in GHz; the ordinate is the return loss in dB. A solid line S11 is a return loss curve of the second frequency wireless signal received and transmitted after the second impedance matching network and the second filter network are disposed on the antenna module; s12 is a return loss curve of the first frequency wireless signal after the first impedance matching network and the first filter network are arranged on the antenna module; s22 is an isolation curve between signals when the antenna module is configured with a corresponding impedance matching network and a corresponding filter network and simultaneously receives and transmits wireless signals. As can be seen from fig. 5, the antenna module can achieve better impedance matching for transceiving the wireless signals of the first frequency and the second frequency, so that the return loss for transceiving the wireless signals of the first frequency and the second frequency is close to 0; and the isolation between the signals in the isolation curve can be lower than 17.8dB, so that the influence generated when the radiation structure receives and transmits wireless signals of two frequencies simultaneously is greatly reduced.

FIG. 6 is a diagram illustrating antenna efficiency of the antenna module for transceiving wireless signals with a second frequency; fig. 7 is an antenna efficiency diagram of the antenna module for transceiving the wireless signal of the first frequency. The solid line represents the radiation efficiency of the antenna module, and the dotted line represents the overall efficiency of the antenna module. As can be seen from fig. 6, the total efficiency of the antenna module for transceiving the wireless signal of the second frequency can reach-5.45 dB, and the performance requirement of the antenna module for transceiving the wireless signal of the second frequency is satisfied. As can be seen from fig. 7, the total efficiency of the first frequency in the N41 frequency band, the N78 frequency band, and the N79 frequency band can be more than-3 dB, and the performance requirement of the antenna module for transceiving the first frequency is also satisfied.

In some embodiments, as shown in fig. 8, the first radiator includes: a first ground terminal and a first free terminal 101b 1;

the second radiator includes: second ground and second free ends 101a 1;

wherein the second free end 101a1 is separate from and opposite the first free end 101b 1.

In the embodiment of the present disclosure, the first hanging end and the second hanging end are separately disposed. In some embodiments, as shown in fig. 8, the distance between the first free end 101b1 and the second free end 101a1 is in the range of 0.5 millimeters to 1.5 millimeters.

It should be noted that a spacer may be disposed between the first free end and the second free end. The spacer may be constructed of a non-conductive material such as plastic or fiber.

In an embodiment of the disclosure, the first ground terminal and the second ground terminal are located on the circuit board and are both connected to a ground layer on the circuit board. The connection between the first ground terminal and the ground layer on the circuit board includes, but is not limited to, an antenna spring, an antenna thimble, or soldering.

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

In some embodiments, as shown in fig. 8, the clearance width H of the radiating structure is in the range of 0.2 mm to 1 mm.

In some embodiments, as shown in fig. 8, the distance between the first feeding point 102 to the second feeding point 103 is in the range of 3 mm to 5 mm.

The embodiment of the disclosure also provides a terminal device. As shown in fig. 9, the terminal device includes:

a printed circuit board 12;

the antenna module 11 in one or more embodiments described above is used for transceiving wireless signals with different frequencies;

the first feeding point and the second feeding point of the antenna module are both positioned on the printed circuit board.

In the embodiment of the present disclosure, the terminal device may be a wearable electronic device and a mobile terminal, where the mobile terminal includes a mobile phone, a notebook and a tablet computer, and the wearable electronic device includes a smart watch.

It should be noted that the clearance width of the radiating structure, the distance between the second feeding point and the second free end, the distance between the first feeding point and the first free end, the distance between the first free end and the second free end, and the distance between the first feeding point and the second feeding point in the antenna module in one or more embodiments described above are all a preferred design distance based on the external dimension of the terminal device, the length of the terminal device is 155 mm, the width of the terminal device is 77 mm, and the height of the terminal device is 7 mm. Of course, the design distance may be adaptively adjusted according to the external dimensions of different terminal devices, and the embodiments of the present disclosure are not limited thereto.

According to the embodiment of the disclosure, the terminal device can meet the requirement that the terminal device receives and transmits wireless signals with different frequencies simultaneously through the common radiation structure of the two feeding points. On the other hand, the radiation structure corresponding to the first frequency and the radiation structure corresponding to the second frequency do not need to be respectively arranged in the embodiment of the disclosure, the number of the radiation structures can be reduced, the space occupied by the antenna module on the terminal device is further reduced, and the space utilization rate of the terminal device is improved.

In some embodiments, as shown in fig. 10, the terminal device further includes: a frame 13;

So, this disclosed embodiment directly regards the frame as antenna module's radiation structure, can solve because of additionally setting up radiation structure and lead to antenna module to occupy the big problem in terminal equipment space, can further reduce antenna module and occupy terminal equipment's space, has improved terminal equipment's space utilization.

The frame can be a frame with a conductive function formed by metal, alloy material or conductive plastic.

The shape of the frame can be set according to the requirements of users. For example, the frame of the terminal device may be configured as a rectangular housing, and the embodiments of the present disclosure are not limited thereto.

In the embodiment of the present disclosure, the first radiator and the second radiator are different portions of the same side of the frame. When the shape of the frame is a rectangular shape, the first radiator and the second radiator may be different portions of a short side of the frame, and may also be different portions of a long side of the frame, which is not limited in the embodiments of the present disclosure.

In other embodiments, the first radiator and the second radiator may be portions of adjacent sides of the bezel, respectively. For example, when the bezel has a rectangular shape, the first radiator may be a long side portion of the bezel, and the second radiator may be located at a short side portion of the bezel; alternatively, the first radiator may be a short side portion of the bezel, and the second radiator may be located at a long side portion of the bezel, which is not limited in the embodiments of the present disclosure.

In some embodiments, the length of the first radiator may be in a range of 18 mm to 25 mm; the length of the second radiator may be in the range of 4 mm to 5 mm.

In some embodiments, a printed circuit board includes:

a ground layer surrounding an edge of the printed circuit board;

the distance between the frame and the ground layer is the clearance width of the radiating structure.

In some embodiments, the terminal device further comprises:

and the magnetism isolating module is positioned between the frame and the grounding layer and used for isolating electromagnetic signals generated by the current in the printed circuit board flowing back to the grounding layer. Therefore, the isolation module can reduce the interference of electromagnetic signals generated by current backflow in the printed circuit board to the antenna module, and further can improve the efficiency of receiving and transmitting wireless signals by the terminal equipment.

In the embodiment of the present disclosure, the magnetic shielding module may be a module formed of a non-conductive material. The non-conductive material includes, but is not limited to, foam, fiber, or plastic, etc.

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

Fig. 11 is a block diagram illustrating a terminal device according to an example embodiment. For example, the terminal device may 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, and the like.

Referring to fig. 11, the terminal device 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.

The processing component 802 generally controls overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices 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, magnetic or optical disks.

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

The multimedia component 808 includes a screen that provides an output interface between the terminal device 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 may 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 touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. When the terminal device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

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

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor component 814 includes one or more sensors for providing various aspects of state assessment for the terminal device. For example, sensor assembly 814 may detect the open/closed status of the terminal device, the relative positioning of components, such as the display and keypad of the terminal device, the change in position of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, the orientation or acceleration/deceleration of the terminal device, and the change in temperature of the terminal device. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may 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 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the terminal device and other devices in a wired or wireless manner. The terminal device may 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 a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal device may 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 components for performing the above-described methods.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An antenna module, characterized in that, the antenna module includes:

a radiating structure;

2. The antenna module of claim 1, wherein the radiating structure comprises:

3. The antenna module of claim 2, further comprising:

4. The antenna module of claim 3, further comprising:

a first radio frequency front end component;

5. The antenna module of claim 3, further comprising:

a second radio frequency front end component;

6. The antenna module of claim 2, wherein the first radiator comprises: a first ground terminal and a first free terminal;

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

8. The antenna module of claim 6, wherein a distance between the first feeding point and the first free end is in a range of 5 mm to 16 mm;

9. The antenna module of any of claims 1-8 wherein the radiating structure has a clearance width in the range of 0.2 mm to 1 mm.

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

11. A terminal device, characterized in that the terminal device comprises:

a printed circuit board;

12. The terminal device according to claim 11, wherein the terminal device further comprises: a frame;

13. The terminal device of claim 11, wherein the printed circuit board comprises:

a ground layer surrounding an edge of the printed circuit board;

14. The terminal device according to claim 13, wherein the terminal device further comprises: