CN106848536A

CN106848536A - A kind of antenna, mobile terminal and communication means

Info

Publication number: CN106848536A
Application number: CN201611262600.0A
Authority: CN
Inventors: 马坤
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2017-06-13

Abstract

The embodiment of the invention discloses a kind of antenna, mobile terminal and communication means, antenna is arranged on the bottom of shell after metal, and the first distributing point, the second distributing point, resonant switch and earth point are provided with antenna；Antenna also includes being arranged on the side of the metal edge frame of shell or the conducting medium of bottom after metal；1 point on conducting medium with metal after the bottom of shell be coupled or short circuit；Wherein, the first distributing point and resonant switch are located at first side of USB (USB) port；Earth point is located at the second side of USB port；Second distributing point is located between USB port and earth point；First distributing point, the second distributing point and resonant switch are respectively adopted corresponding shell fragment point and connect printed circuit board (PCB) platelet；The backboard of the earth point of antenna shell after the strip metal medium of predetermined width connects metal.The embodiment of the present invention realizes the logical communications band of the whole network of all-metal mobile terminal, also, TOCOM total communication frequency range is extended toward low-frequency range, also, reduces influence of the hand to antenna.

Description

Antenna, mobile terminal and communication method

Technical Field

The present invention relates to terminal technologies, and in particular, to an antenna, a mobile terminal, and a communication method.

Background

At present, mobile terminals with all-metal housings are popular among domestic and foreign manufacturers due to attractive appearance, high structural strength and excellent heat-conducting performance. However, the thickness is thinner and thinner along with the increase of the proportion of the metal covering surface, and correspondingly, the space reserved for the design of the mobile terminal antenna is smaller and smaller, so that the design difficulty of the mobile terminal antenna is greatly increased. Meanwhile, in order to improve the performance of the antenna and meet the application requirements of consumers, various antenna designs such as a diversity antenna, a Global Positioning System (GPS) antenna and a Wireless Fidelity (WiFi) antenna need to be implemented in the all-metal terminal, which further increases the difficulty of antenna design of the mobile terminal.

The metal mobile terminal (e.g. mobile phone) is the mainstream of the market, the antenna is the difficult point of design in the metal mobile, and the design of the metal antenna (the working frequency band includes 824-960 megahertz (MHz), 1710-2700 MHz) of the whole network is the most difficult. The design of the full-mesh metal antenna is the most difficult due to the following reasons: the electromagnetic environment of an all-metal structure is complex and the space for designing the antenna is limited; in addition, the clearance area environment of the current all-metal complete machine metal structure antenna is smaller and smaller, and devices placed around the clearance area are more and more, and the performance of the all-metal mobile phone antenna is more and more difficult to realize the radiation efficiency of broadband and high radiation.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the invention provides an antenna, a mobile terminal and a communication method, which can realize the communication frequency band of the all-metal mobile terminal for the whole network communication.

The embodiment of the invention provides an antenna, which is arranged at the bottom of a metal rear shell of a mobile terminal;

the antenna is provided with a first feeding point, a second feeding point, a resonant switch and a grounding point;

the antenna also comprises a conductive medium arranged on the side edge or the bottom of the metal frame of the metal rear shell; at least one point on the conductive medium is coupled or shorted with the bottom of the metal rear shell;

wherein,

the first feeding point and the resonance switch are positioned on a first side of a Universal Serial Bus (USB) port of the mobile terminal; the grounding point is positioned at the second side of the USB port; the second feeding point is positioned between the USB port and the grounding point;

the first feed point, the second feed point and the resonance switch of the antenna are respectively in point connection with a Printed Circuit Board (PCB) platelet of the mobile terminal by using elastic sheets;

the grounding point of the antenna is connected with the back plate of the metal back shell through a strip-shaped metal medium with a preset width.

Alternatively to this, the first and second parts may,

the first feed point comprises a first adjustable capacitor; the second feeding point comprises a second adjustable capacitor;

the resonance switch is a one-to-three tuning switch;

wherein a first path of the resonant switch is connected with a first capacitor; and the second path of the resonant switch is connected with a second capacitor.

Optionally, the antenna includes an inverted F antenna.

Optionally, the conductive medium is a metal sheet or a metal sheet embedded in the leather sheath or a metal coating embedded in the leather sheath.

Optionally, the distance between the coupling point and the bottom of the metal rear shell is 0.1 mm-3 mm;

wherein the coupling point is a point on the conductive medium that couples with the bottom of the metal rear shell.

Optionally, the distance between the other point on the conductive medium except the coupling point and the short-circuit point and the bottom of the metal rear shell is greater than or equal to 0.5 mm;

wherein the coupling point is a point on the conductive medium coupled to the bottom of the metal rear shell; the short contact is a point on the conductive medium, which is in short circuit with the bottom of the metal rear shell.

Optionally, a point on the conductive medium is coupled or shorted with the bottom of the metal back shell.

Optionally, the coupling point or the shorting point is located on a first side of the first feeding point;

On the other hand, the embodiment of the invention also provides a mobile terminal, which comprises an antenna and a controller; wherein,

the antenna is arranged at the bottom of the metal rear shell of the mobile terminal, and a first feeding point, a second feeding point, a resonance switch and a grounding point are arranged on the antenna;

the first feed point, the second feed point and the resonance switch of the antenna are respectively in point connection with the PCB platelet of the mobile terminal by adopting corresponding elastic sheets; the grounding point of the antenna is connected with the back plate of the metal rear shell through a strip-shaped metal medium with a preset width;

the controller is used for detecting the current mode of the handheld terminal of the user, controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal of the user, and controlling the first feeding point or the second feeding point of the antenna and/or the resonance switch to resonate different communication frequency bands for the communication of the mobile terminal.

Alternatively to this, the first and second parts may,

the resonant switch includes: a one-to-three tuning switch;

Optionally, the controller is specifically configured to:

detecting the current mode of the user holding the terminal, judging that the current mode of the user holding the terminal is the right-hand mode, controlling the first feeding point to be in a feeding state, and controlling the second feeding point to be in a non-feeding state;

controlling the resonance switch to be in a suspension state, and adjusting a first adjustable capacitor of a first feeding point to be a capacitor with a first numerical value so as to obtain a first high frequency and a first low frequency through resonance;

controlling the resonance switch to be in a first path, loading a first capacitor connected with the first path, and adjusting a first adjustable capacitor of a first feeding point to be a capacitor with a first numerical value so as to obtain a second low frequency with a frequency value smaller than the first low frequency through resonance;

controlling the resonance switch to be in a second path, and adjusting a first adjustable capacitor of the first feeding point to be a capacitor of a third numerical value so as to obtain a first intermediate frequency through resonance; or, controlling the resonance switch to be in a second path, loading a second capacitor connected with the second path, and adjusting the first adjustable capacitor at the first feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance;

and controlling the resonance switch to be in a third path, and adjusting the first adjustable capacitor of the first feeding point to be a fourth numerical value capacitor so as to obtain ultrahigh frequency resonance through resonance.

Optionally, the controller is specifically configured to:

detecting the current mode of the user handheld terminal, judging that the current mode of the user handheld terminal is a left-hand mode, controlling the first feeding point to be in a non-feeding state, and controlling the second feeding point to be in a feeding state;

controlling the resonance switch to be in a suspension state, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor with a first numerical value so as to obtain a first high frequency and a first low frequency through resonance;

controlling the resonance switch to be in a first path, loading a first capacitor connected with the first path, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor with a first numerical value so as to obtain a second low frequency with a frequency value smaller than the first low frequency through resonance;

controlling the resonance switch to be in a second path, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor of a third numerical value so as to obtain a first intermediate frequency through resonance; or, controlling the resonance switch to be in a second path, loading a second capacitor connected with the second path, and adjusting a second adjustable capacitor at a second feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance;

and controlling the resonance switch to be in a third path, and adjusting a second adjustable capacitor of a second feeding point to be a fourth numerical value capacitor so as to obtain ultrahigh frequency resonance through resonance.

In another aspect, an embodiment of the present invention further provides a communication method, which is applied to a mobile terminal, where the mobile terminal includes an antenna;

the communication method comprises the following steps:

detecting the current mode of the handheld terminal of the user, and controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal of the user;

receiving a control instruction for controlling a first feeding point or a second feeding point of the antenna and/or a resonance switch;

and controlling the first feeding point or the second feeding point of the antenna and/or the resonance switch according to the received control command so as to resonate different communication frequency bands for the communication of the mobile terminal.

Alternatively to this, the first and second parts may,

the resonance switch is a one-to-three tuning switch;

Optionally, the controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal of the user includes:

judging that the current mode of the user holding the terminal is a right-hand mode, controlling the first feeding point to be in a feeding state, and controlling the second feeding point to be in a non-feeding state;

the controlling the first feeding point or the second feeding point of the antenna and/or the resonance switch according to the received control command to resonate different communication frequency bands includes:

controlling the resonance switch to be in a suspension state according to the received control instruction, and adjusting a first adjustable capacitor of a first feeding point to be a capacitor with a first numerical value so as to obtain a first high frequency and a first low frequency through resonance; and/or the presence of a gas in the gas,

controlling the resonance switch to be in a first path according to the received control instruction, loading a first capacitor connected with the first path in series, and adjusting a first adjustable capacitor of a first feeding point to be a capacitor with a first numerical value so as to obtain a second low frequency with a frequency value smaller than the first low frequency through resonance; and/or the presence of a gas in the gas,

controlling the resonance switch to be in a second path according to the received control instruction, and adjusting the first adjustable capacitor of the first feeding point to be a capacitor with a third value so as to obtain a first intermediate frequency through resonance; or, controlling the resonance switch to be in a second path, loading a second capacitor connected with the second path, and adjusting the first adjustable capacitor at the first feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance; and/or the presence of a gas in the gas,

and controlling the resonance switch to be in a third path according to the received control instruction, and adjusting the first adjustable capacitor of the first feeding point to be a fourth numerical value capacitor so as to obtain ultrahigh frequency resonance through resonance.

judging that the current mode of the user handheld terminal is a left-hand mode, controlling the first feeding point to be in a non-feeding state, and controlling the second feeding point to be in a feeding state;

controlling the resonance switch to be in a suspension state according to the received control instruction, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor with a first value so as to obtain a first high frequency and a first low frequency through resonance; and/or the presence of a gas in the gas,

controlling the resonance switch to be in a first path according to the received control instruction, loading a first capacitor connected with the first path in series, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor with a first numerical value so as to obtain a second low frequency with a frequency value smaller than the first low frequency through resonance; and/or the presence of a gas in the gas,

controlling the resonance switch to be in a second path according to the received control instruction, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor of a third numerical value so as to obtain a first intermediate frequency through resonance; or, controlling the resonance switch to be in a second path, loading a second capacitor connected with the second path, and adjusting a second adjustable capacitor at a second feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance; and/or the presence of a gas in the gas,

and controlling the resonance switch to be in a third path according to the received control instruction, and adjusting a second adjustable capacitor of a second feeding point to be a fourth numerical value capacitor so as to obtain ultrahigh frequency resonance through resonance.

Alternatively to this, the first and second parts may,

the first capacitor includes: taking a capacitance in the range of 0.75 pf-1.5 pf;

the second capacitance includes: the value of the capacitance is in the range of 4pf to 6 pf.

Compared with the related art, the technical scheme of the application comprises the following steps: the method is applied to a mobile terminal, wherein the mobile terminal comprises an antenna; the antenna is arranged at the bottom of the metal rear shell of the mobile terminal, and a first feeding point, a second feeding point, a resonance switch and a grounding point are arranged on the antenna; the antenna also comprises a conductive medium arranged on the side edge or the bottom of the metal frame of the metal rear shell; at least one point on the conductive medium is coupled or shorted with the bottom of the metal rear shell; the first feeding point and the resonance switch are positioned on a first side of a Universal Serial Bus (USB) port of the mobile terminal; the grounding point is positioned at the second side of the USB port; the second feeding point is positioned between the USB port and the grounding point; the first feed point, the second feed point and the resonance switch of the antenna are respectively in point connection with the PCB platelet of the mobile terminal by adopting corresponding elastic sheets; the grounding point of the antenna is connected with the back plate of the metal rear shell through a strip-shaped metal medium with a preset width; the communication method comprises the following steps: detecting the current mode of the handheld terminal of the user, and controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal of the user; receiving a control instruction for controlling a first feeding point or a second feeding point of the antenna and/or a resonance switch; and controlling the first feeding point or the second feeding point of the antenna and/or the resonance switch according to the received control command so as to resonate different communication frequency bands for the communication of the mobile terminal. The embodiment of the invention realizes the whole network communication frequency band of the all-metal mobile terminal and improves the network performance of the all-metal mobile terminal; a conductive medium is arranged on the side edge or the bottom of the metal frame of the metal rear shell to extend the coverage frequency band of the antenna to the low frequency band, so that the frequency band range of the antenna is larger; in addition, different feeding points are switched by the mode of the current handheld terminal of the user, so that the influence of the hand on the antenna is reduced, and the performance of the antenna is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic diagram of a hardware structure of an optional mobile terminal implementing an embodiment of the present invention;

FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;

FIG. 3 is a block diagram of an antenna according to an embodiment of the present invention;

FIG. 4 is a diagram of a mobile terminal in an alternative embodiment of the present invention;

fig. 5 is a block diagram of a mobile terminal according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a user interaction interface for setting an adjustable capacitance value according to an embodiment of the invention;

fig. 7 is a flowchart of a communication method according to an embodiment of the invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An alternative mobile terminal for implementing embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

The mobile terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a navigation device, and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.

Fig. 1 is a schematic hardware structure of an optional mobile terminal implementing an embodiment of the present invention.

The mobile terminal 100 may include a wireless communication unit 110, an a/V (audio/video) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190, etc. Fig. 1 illustrates a mobile terminal having various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented. Elements of the mobile terminal will be described in detail below.

The wireless communication unit 110 typically includes one or more components that allow radio communication between the mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short-range communication module 114, and a location information module 115.

The broadcast receiving module 111 receives a broadcast signal and/or broadcast associated information from an external broadcast management server via a broadcast channel. The broadcast channel may include a satellite channel and/or a terrestrial channel. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast associated information or a server that receives a previously generated broadcast signal and/or broadcast associated information and transmits it to a terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Also, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast associated information may also be provided via a mobile communication network, and in this case, the broadcast associated information may be received by the mobile communication module 112. The broadcast signal may exist in various forms, for example, it may exist in the form of an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB), an Electronic Service Guide (ESG) of digital video broadcasting-handheld (DVB-H), and the like. The broadcast receiving module 111 may receive a signal broadcast by using various types of broadcasting systems. In particular, the broadcast receiving module 111 may be implemented by using a digital broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video broadcasting-handheld (DMB-handheld), for example

(DVB-H), Forward Link Medium (MediaFLO)^@) A digital broadcasting system of a terrestrial digital broadcasting integrated service (ISDB-T), etc. receives digital broadcasting. The broadcast receiving module 111 may be constructed to be suitable for various broadcasting systems that provide broadcast signals as well as the above-mentioned digital broadcasting systems. The broadcast signal and/or broadcast associated information received via the broadcast receiving module 111 may be stored in the memory 160 (or other type of storage medium).

The mobile communication module 112 transmits and/or receives radio signals to and/or from at least one of a base station (e.g., access point, node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received according to text and/or multimedia messages.

The wireless internet module 113 supports wireless internet access of the mobile terminal. The module may be internally or externally coupled to the terminal. The wireless internet access technology to which the module relates may include WLAN (wireless LAN) (Wi-Fi), Wibro (wireless broadband), Wimax (worldwide interoperability for microwave access), HSDPA (high speed downlink packet access), and the like.

The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technologies include bluetooth^TMRadio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), zigbee^TMAnd so on.

The location information module 115 is a module for checking or acquiring location information of the mobile terminal. A typical example of the location information module is a GPS (global positioning system). According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current location information according to longitude, latitude, and altitude. Currently, a method for calculating position and time information uses three satellites and corrects an error of the calculated position and time information by using another satellite. In addition, the GPS module 115 can calculate speed information by continuously calculating current position information in real time.

The a/V input unit 120 is used to receive an audio or video signal. The a/V input unit 120 may include a camera 121 and a microphone 1220, and the camera 121 processes image data of still pictures or video obtained by an image capturing apparatus in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 151. The image frames processed by the camera 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 1210 may be provided according to the construction of the mobile terminal. The microphone 122 may receive sounds (audio data) via the microphone in a phone call mode, a recording mode, a voice recognition mode, or the like, and can process such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the mobile communication module 112 in case of a phone call mode. The microphone 122 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The user input unit 130 may generate key input data according to a command input by a user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects changes in resistance, pressure, capacitance, and the like due to being touched), scroll wheel, joystick, and the like. In particular, when the touch pad is superimposed on the display unit 151 in the form of a layer, a touch screen may be formed.

The sensing unit 140 detects a current state of the mobile terminal 100 (e.g., an open or closed state of the mobile terminal 100), a position of the mobile terminal 100, presence or absence of contact (i.e., touch input) by a user with the mobile terminal 100, an orientation of the mobile terminal 100, acceleration or deceleration movement and direction of the mobile terminal 100, and the like, and generates a command or signal for controlling an operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 supplies power or whether the interface unit 170 is coupled with an external device. The sensing unit 140 may include a proximity sensor 1410 as will be described below in connection with a touch screen.

The interface unit 170 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The identification module may store various information for authenticating a user using the mobile terminal 100 and may include a User Identity Module (UIM), a Subscriber Identity Module (SIM), a Universal Subscriber Identity Module (USIM), and the like. In addition, a device having an identification module (hereinafter, referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected with the mobile terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal and the external device.

In addition, when the mobile terminal 100 is connected with an external cradle, the interface unit 170 may serve as a path through which power is supplied from the cradle to the mobile terminal 100 or may serve as a path through which various command signals input from the cradle are transmitted to the mobile terminal. Various command signals or power input from the cradle may be used as signals for recognizing whether the mobile terminal is accurately mounted on the cradle. The output unit 150 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

The display unit 151 may display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a User Interface (UI) or a Graphical User Interface (GUI) related to a call or other communication (e.g., text messaging, multimedia file downloading, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or an image and related functions, and the like.

Meanwhile, when the display unit 151 and the touch pad are overlapped with each other in the form of a layer to form a touch screen, the display unit 151 may serve as an input device and an output device. The display unit 151 may include at least one of a Liquid Crystal Display (LCD), a thin film transistor LCD (TFT-LCD), an Organic Light Emitting Diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a TOLED (transparent organic light emitting diode) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect a touch input pressure as well as a touch input position and a touch input area.

The audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 into an audio signal and output as sound when the mobile terminal is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output module 152 may provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 may provide an output to notify the mobile terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, and the like. In addition to audio or video output, the alarm unit 153 may provide output in different ways to notify the occurrence of an event. For example, the alarm unit 153 may provide an output in the form of vibration, and when a call, a message, or some other incoming communication (incomingmunication) is received, the alarm unit 153 may provide a tactile output (i.e., vibration) to inform the user thereof. By providing such a tactile output, the user can recognize the occurrence of various events even when the user's mobile phone is in the user's pocket. The alarm unit 153 may also provide an output notifying the occurrence of an event via the display unit 151 or the audio output module 152.

The memory 160 may store software programs and the like for processing and controlling operations performed by the controller 180, or may temporarily store data (e.g., a phonebook, messages, still images, videos, and the like) that has been or will be output. Also, the memory 160 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. Also, the mobile terminal 100 may cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 1810 for reproducing (or playing back) multimedia data, and the multimedia module 1810 may be constructed within the controller 180 or may be constructed separately from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 190 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180.

The various embodiments described herein may be implemented in a computer-readable medium using, for example, computer software, hardware, or any combination thereof. For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in the controller 180. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in the memory 160 and executed by the controller 180.

Up to this point, mobile terminals have been described in terms of their functionality. Hereinafter, a slide-type mobile terminal among various types of mobile terminals, such as a folder-type, bar-type, swing-type, slide-type mobile terminal, and the like, will be described as an example for the sake of brevity. Accordingly, the present invention can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in fig. 1 may be configured to operate with communication systems such as wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.

A communication system in which a mobile terminal according to the present invention is operable will now be described with reference to fig. 2.

Such communication systems may use different air interfaces and/or physical layers. For example, the air interface used by the communication system includes, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)), global system for mobile communications (GSM), and the like. By way of non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to fig. 2, the CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of Base Stations (BSs) 270, Base Station Controllers (BSCs) 275, and a Mobile Switching Center (MSC) 280. The MSC280 is configured to interface with a Public Switched Telephone Network (PSTN) 290. The MSC280 is also configured to interface with a BSC275, which may be coupled to the base station 270 via a backhaul. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, frame Relay, HDSL, ADSL, or xDSL. It will be understood that a system as shown in fig. 2 may include multiple BSCs 2750.

Each BS270 may serve one or more sectors (or regions), each sector covered by a multi-directional antenna or an antenna pointing in a particular direction being radially distant from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS270 may be configured to support multiple frequency allocations, with each frequency allocation having a particular frequency spectrum (e.g., 1.25MHz,5MHz, etc.).

The intersection of partitions with frequency allocations may be referred to as a CDMA channel. The BS270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to generically refer to a single BSC275 and at least one BS 270. The base stations may also be referred to as "cells". Alternatively, each sector of a particular BS270 may be referred to as a plurality of cell sites.

As shown in fig. 2, a Broadcast Transmitter (BT)295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in fig. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In fig. 2, several Global Positioning System (GPS) satellites 300 are shown. The satellite 300 assists in locating at least one of the plurality of mobile terminals 100.

In fig. 2, a plurality of satellites 300 are depicted, but it is understood that useful positioning information may be obtained with any number of satellites. The GPS module 115 as shown in fig. 1 is generally configured to cooperate with satellites 300 to obtain desired positioning information. Other techniques that can track the location of the mobile terminal may be used instead of or in addition to GPS tracking techniques. In addition, at least one GPS satellite 300 may selectively or additionally process satellite DMB transmission.

As a typical operation of the wireless communication system, the BS270 receives reverse link signals from various mobile terminals 100. The mobile terminal 100 is generally engaged in conversations, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within the particular BS 270. The obtained data is forwarded to the associated BSC 275. The BSC provides call resource allocation and mobility management functions including coordination of soft handoff procedures between BSs 270. The BSCs 275 also route the received data to the MSC280, which provides additional routing services for interfacing with the PSTN 290. Similarly, the PSTN290 interfaces with the MSC280, the MSC interfaces with the BSCs 275, and the BSCs 275 accordingly control the BS270 to transmit forward link signals to the mobile terminal 100.

Based on the above mobile terminal hardware structure and communication system, the present invention provides various embodiments of the method.

Fig. 3 is a block diagram of an antenna according to an embodiment of the present invention, and as shown in fig. 3, the antenna is disposed at the bottom of a metal rear housing of a mobile terminal;

wherein,

the first feeding point and the resonance switch are positioned on a first side of a Universal Serial Bus (USB) port of the mobile terminal; the grounding point is positioned at the second side of the USB port; the second feeding point is located between the USB port and the ground point.

Here, the first side and the second side are the left side and the right side when viewed from the display screen to the back of the mobile terminal, if the viewing direction is changed, the first side and the second side are correspondingly changed, and the changed implementation schemes are all within the protection scope of the embodiment of the present invention. For example, when looking from the back of the mobile terminal to the display screen, then the first feeding point and the resonance switch are arranged on the second side of the USB port, and the grounding point is arranged on the first side of the USB port.

The first feeding point, the second feeding point and the resonance switch of the antenna are respectively connected with a Printed Circuit Board (PCB) platelet of the mobile terminal through elastic pieces;

It should be noted that the mobile terminal according to the embodiment of the present invention may be a mobile phone with a three-section metal rear shell, including the top, the bottom and the back plate of the metal rear shell; the top and the bottom of the metal rear shell of the mobile terminal are designed symmetrically, gaps exist between the top and the back plate and between the bottom and the back plate, the width of each gap can be a preset width, for example 2mm, and the gaps are filled with non-conductive materials. The top can be provided with other types of antennas according to the related technology, and the antennas designed by the embodiment of the invention are independent and do not influence each other. Fig. 4 is a schematic diagram of a mobile terminal according to an alternative embodiment of the present invention, as shown in fig. 4, a rear case of the mobile terminal is designed in an all-metal three-stage manner, and a gap 3 is formed between a top 1 and a back plate 2; the back plate 2 and the bottom 4 are provided with a gap 5; the top part 1 and the bottom part 4 are designed symmetrically.

Optionally, in the embodiment of the present invention, the first feeding point includes a first adjustable capacitor; the second feeding point comprises a second adjustable capacitor; the resonance switch is a one-to-three tuning switch;

the first path of the resonant switch is connected with the first capacitor; the second path of the resonant switch is connected to the second capacitor.

Optionally, the antenna according to the embodiment of the present invention includes an antenna with an inverted F structure.

Here, the inverted F antenna is also called an IFA antenna, which is an existing antenna structure in the related art and is not described herein.

Optionally, the conductive medium is a metal sheet or a metal sheet embedded in the leather sheath or a metal coating embedded in the leather sheath. When at least one point on the conductive medium is coupled with the bottom of the metal rear shell, the conductive medium can be completely embedded in the leather sheath, and the distance between the coupling point and the bottom of the metal rear shell is larger than 0mm, namely, the coupling point and the bottom of the metal rear shell are not connected, for example, the influence on the volume of the mobile terminal is considered, and the range of the coupling point and the bottom of the metal rear shell can be 0.1-3 mm; when at least one point on the conductive medium is in short circuit with the bottom of the metal rear shell, at least one point on the conductive medium is exposed outside the leather sheath.

Optionally, the distance between the conductive medium and the bottom of the metal rear shell is greater than or equal to 0.5mm except for the coupling point and the short-circuit point.

When the coupling point or the short-circuit point is on the first side of the first feeding point, the frequency band of the antenna can be extended to a low frequency direction (for example, to 700MHz or lower frequency, etc.), and the performance of the high frequency band of the antenna can be improved.

The coupling point is a point on the conductive medium coupled with the bottom of the metal rear shell, and the short-circuit point is a point on the conductive medium short-circuited with the bottom of the metal rear shell.

Optionally, the coupling point and the shorting point are one.

The length of the conductive medium extending from the side edge or the bottom of the metal frame of the metal rear shell is not limited, and can be adjusted correspondingly according to the actual extending frequency band requirement.

Optionally, in the embodiment of the present invention, the first feeding point or the second feeding point of the antenna and the resonance switch may be in different working states, so as to obtain different communication frequency bands through resonance; the method specifically comprises the following steps:

setting the resonant switch in a suspension state, adjusting a first adjustable capacitor of a first feeding point or a second adjustable capacitor of a second feeding point to be a capacitor with a first value, and obtaining a first high frequency and a first low frequency through resonance at the moment;

setting a resonance switch in a first path, loading a first capacitor connected with the first path, adjusting a first adjustable capacitor of a first feeding point or a second adjustable capacitor of a second feeding point to be a capacitor of a first numerical value, and obtaining a second low frequency with a frequency value smaller than the first low frequency through resonance at the moment;

setting the resonant switch to be in a second path, adjusting the first adjustable capacitor of the first feeding point or the second adjustable capacitor of the second feeding point to be a capacitor with a third value, and obtaining a first intermediate frequency through resonance at the moment; or, setting the resonance switch in the second path, loading a second capacitor connected with the second path, adjusting the first adjustable capacitor of the first feeding point or the second adjustable capacitor of the second feeding point to a capacitor of a third value, and obtaining a second intermediate frequency through resonance at the moment;

and setting the resonant switch in a third path, and adjusting the first adjustable capacitor of the first feeding point or the second adjustable capacitor of the second feeding point to be a capacitor with a fourth value, so that the ultrahigh frequency resonance can be obtained through resonance at the moment.

It should be noted that, in the embodiment of the present invention, the first numerical value, the second numerical value, the third numerical value, and the fourth numerical value may be designed by referring to the size, the material, the distribution of the elements at the position of the antenna, the size and the structure of the antenna, and the like of the mobile terminal, and may be calculated and adjusted by a person skilled in the art according to the frequency to be obtained by the antenna resonance. In addition, the first capacitor, the second capacitor, the resonant switch and the like in the embodiment of the invention can be existing elements in the related art, and can be selectively applied according to cost, element packaging and the like.

Optionally, a value of the first capacitor in the embodiment of the present invention is a value between 0.75 picofarad (pf) and 1.5pf, for example, the first capacitor may be equal to 1 pf; the second capacitance may have a value in the range of 4pf to 6pf, for example, the second capacitance may be equal to 4.7 pf.

In the embodiment of the invention, the frequency range of the first low frequency can include 880 Megahertz (MHZ) -960 MHz; the frequency range of the first high frequency comprises 2500 MHz-2700 MHz;

the frequency range of the second low frequency includes: 824 MHz-960 MHz;

the frequency ranges of the first intermediate frequency and the second intermediate frequency may include: 1710MHz to 2170 MHz;

the frequency range of the ultra high frequency may include: 2300MHz to 2500 MHz.

According to the embodiment of the invention, through the four combination modes, the antenna resonance can obtain the frequency coverage ranges of 824 MHz-960 MHz and 1710-2700MHz, namely, the whole network communication band can be realized through resonance.

Here, the mobile terminal is taken as a mobile phone, and the mobile phone has a length of 155 millimeters (mm) and a width of 75 mm; the first feeding point and the second feeding point are not too close to the USB, the distance can be set to be more than 2mm, and the distance between the resonant switch and the first feeding point is more than 15mm to 20 mm; the grounding point is about 20mm away from the position of the first feeding point; the distance between the grounding point and the second feeding point is about 10-15 mm; according to the determined positions, when debugging, a person skilled in the art can analyze and determine the specific positions of the first feeding point, the second feeding point, the resonant switch and the grounding point according to the condition of the standing wave; the grounding point of the embodiment of the invention can be a long-strip metal medium, and is contacted with the metal back plate, the length value range is 5-10mm, and the specific length can be determined according to the high-frequency and low-frequency conditions of the antenna.

The embodiment of the invention realizes the whole network communication frequency band of the all-metal mobile terminal and improves the network performance of the all-metal mobile terminal; a conductive medium is arranged on the side edge or the bottom of the metal frame of the metal rear shell to extend the coverage frequency band of the antenna to the low frequency band, so that the frequency band range of the antenna is larger; in addition, different feeding points are switched by the mode of the current handheld terminal of the user, so that the influence of the hand on the antenna is reduced, and the performance of the antenna is improved.

Fig. 5 is a block diagram of a mobile terminal according to an embodiment of the present invention, as shown in fig. 5, including an antenna and a controller; wherein,

the first side and the second side are the left side and the right side when viewed from the display screen to the back of the mobile terminal, if the viewing direction is changed, the first side and the second side are correspondingly changed, and the changed implementation schemes are all within the protection scope of the embodiment of the invention. For example, when looking from the back of the mobile terminal towards the display screen, then the feeding point is arranged at the second side of the USB port and the grounding point is arranged at the first side of the USB port.

It should be noted that the mobile terminal according to the embodiment of the present invention may be a mobile phone with a three-section metal rear shell, including the top, the bottom and the back plate of the metal rear shell; the top and the bottom of the metal rear shell of the mobile terminal are designed symmetrically, gaps exist between the top and the back plate and between the bottom and the back plate, the width of each gap can be a preset width, for example 2mm, and the gaps are filled with non-conductive materials. The top can be provided with other types of antennas according to the related technology, and the antennas designed by the embodiment of the invention are independent and do not influence each other.

Optionally, the resonant switch comprises: a one-to-three tuning switch; the first feed point comprises a first adjustable capacitor; the second feeding point comprises a second adjustable capacitor;

Optionally, the antenna in the embodiment of the present invention is an inverted-F antenna, which is also called an IFA antenna, and the IFA antenna is an existing antenna structure in the related art and is not described herein again.

Optionally, the coupling point and the shorting point are one.

Optionally, in the embodiment of the present invention, the controller is specifically configured to:

controlling the resonant switch to be in a suspension state, and adjusting a first adjustable capacitor of the first feeding point to be a capacitor with a first value so as to obtain a first high frequency and a first low frequency through resonance;

controlling the resonance switch to be in a second path, and adjusting the first adjustable capacitor of the first feeding point to be a capacitor of a third numerical value so as to obtain a first intermediate frequency through resonance; or controlling the resonance switch to be in the second path, loading a second capacitor connected with the second path, and adjusting the first adjustable capacitor at the first feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance;

controlling the resonant switch to be in a suspension state, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor with a first value so as to obtain a first high frequency and a first low frequency through resonance;

controlling the resonance switch to be in the first path, loading a first capacitor connected with the first path, and adjusting a second adjustable capacitor of the second feeding point to be a capacitor with a first numerical value so as to obtain a second low frequency with a frequency value smaller than the first low frequency through resonance;

controlling the resonance switch to be in a second path, and adjusting a second adjustable capacitor of a second feeding point to be a capacitor of a third numerical value so as to obtain a first intermediate frequency through resonance; or controlling the resonance switch to be in the second path, loading a second capacitor connected with the second path, and adjusting a second adjustable capacitor at the second feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance;

and controlling the resonance switch to be in a third path, and adjusting a second adjustable capacitor of the second feeding point to be a fourth numerical value capacitor so as to obtain ultrahigh frequency resonance through resonance.

Optionally, the controller may detect the current mode of the user holding the terminal by using a hardware sensor, or may detect the current mode of the user holding the terminal by using software, for example, by detecting that the first feeding point is in a feeding state or the second feeding point is in a feeding state, the efficiency of the antenna is detected, and when the first feeding point is in the feeding state and the second feeding point is in a non-feeding state, if the efficiency of the antenna is less than or equal to a preset threshold, it is determined that the current mode of the user holding the terminal is the left-handed mode; and when the second feeding point is in a feeding state and the first feeding point is in a non-feeding state, if the efficiency of the antenna is less than or equal to a preset threshold value, judging that the current mode of the user holding the terminal is a right-hand mode.

It should be noted that fig. 5 adopts a straight line to connect the controller, the first feeding point and the second feeding point, and the resonant switch, in an actual circuit, the controller may be a chip included in the mobile terminal itself, and the connection may be in other manners. In the embodiment of the present invention, the first numerical value, the second numerical value, the third numerical value, and the fourth numerical value may be designed by referring to the size, the material, the distribution of elements at the position of the antenna, the size and the structure of the antenna, and the like of the mobile terminal, and may be calculated and adjusted by a person skilled in the art according to the frequency to be obtained by the antenna resonance. In addition, the first capacitor, the second capacitor, the resonant switch and the like in the embodiment of the invention can be existing elements in the related art, and can be selectively applied according to cost, element packaging and the like. The adjustable capacitance of the feed point can be set through a preset user interaction interface; fig. 6 is a schematic diagram of a user interaction interface for setting a value of the first adjustable capacitor or the second adjustable capacitor according to the embodiment of the present invention, where as shown in fig. 6, the interaction interface is provided with a text input box for a user to input an adjustable capacitor value, and the first adjustable capacitor of the first feeding point or the second adjustable capacitor of the second feeding point can be determined to be a value in the text input box by confirming a key, and a unit of the adjustable capacitor can be set to be a picofarad by default.

Optionally, a value of the first capacitor in the embodiment of the present invention is a value between 0.75 pf and 1.5pf, for example, the first capacitor may be equal to 1 pf; the second capacitance may have a value in the range of 4pf to 6pf, for example, the second capacitance may be equal to 4.7 pf.

In the embodiment of the present invention, the frequency range of the first low frequency may include 880 Megahertz (MHZ) -960 MHZ; the frequency range of the first high frequency comprises 2500 MHz-2700 MHz;

the frequency range of the second low frequency includes: 824 MHz-960 MHz;

The mobile terminal in the embodiment of the invention can be a mobile phone, and the distribution of the feed point, the grounding point and the resonant switching light is illustrated by taking the length of the mobile phone as 155 millimeters (mm) and the width of the mobile phone as an example; for the mobile phone with the above size, the first feeding point and the second feeding point are not too close to the USB, the distance may be set to be greater than 2mm, and the distance from the resonant switch to the first feeding point 1 is greater than 15mm to 20 mm; the grounding point is about 20mm away from the position of the first feeding point; the distance between the grounding point and the second feeding point is about 10-15 mm; according to the determined positions, when debugging, a person skilled in the art can analyze and determine the specific positions of the first feeding point, the second feeding point, the resonant switch and the grounding point according to the condition of the standing wave; the grounding point of the embodiment of the invention can be a long-strip metal medium, and is contacted with the metal back plate, the length value range is 5-10mm, and the specific length can be determined according to the high-frequency and low-frequency conditions of the antenna.

Fig. 7 is a flowchart of a communication method according to an embodiment of the present invention, and as shown in fig. 7, the communication method according to the embodiment of the present invention is applied to a mobile terminal, where the mobile terminal includes an antenna;

here, the first side and the second side are the left side and the right side when viewed from the display screen to the back of the mobile terminal, if the viewing direction is changed, the first side and the second side are correspondingly changed, and the changed implementation schemes are all within the protection scope of the embodiment of the present invention. For example, when looking from the back of the mobile terminal towards the display screen, then the feeding point is arranged at the second side of the USB port and the grounding point is arranged at the first side of the USB port.

optionally, in the embodiment of the present invention, the first feeding point includes a first adjustable capacitor; the second feeding point comprises a second adjustable capacitor;

the resonance switch is a one-to-three tuning switch;

Optionally, the coupling point and the shorting point are one.

Alternatively, in the embodiments of the present invention,

the second capacitor includes: the value of the capacitance is in the range of 4pf to 6pf, for example, 4.7 pf.

the frequency range of the second low frequency includes: 824 MHz-960 MHz;

According to the embodiment of the invention, through the four combination modes, the antenna can obtain the frequency coverage ranges of 824 MHz-960 MHz and 1710-2700MHz through resonance, namely, the whole network communication band can be resonated.

Here, the mobile terminal is taken as a mobile phone, and the mobile phone has a length of 155 millimeters (mm) and a width of 75 mm; the first feeding point and the second feeding point are not too close to the USB, the distance can be set to be more than 2mm, and the distance between the resonant switch and the first feeding point 1 is more than 15mm to 20 mm; the grounding point is about 20mm away from the position of the feeding point; the distance between the grounding point and the second feeding point is about 10-15 mm; according to the determined positions, when debugging, a person skilled in the art can analyze and determine the specific positions of the first feeding point, the second feeding point, the resonant switch and the grounding point according to the condition of the standing wave; the grounding point of the embodiment of the invention can be a long-strip metal medium which is connected with the metal back plate for contact, the length value range is 5-10mm, and the specific length can be determined according to the high-frequency and low-frequency conditions of the antenna.

The communication method of the embodiment of the invention comprises the following steps:

and 700, detecting the current mode of the handheld terminal of the user, and controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal of the user.

Step 701, receiving a control instruction for controlling a first feeding point or a second feeding point of an antenna and/or a resonance switch;

step 702, controlling the first feeding point or the second feeding point of the antenna and/or the resonance switch according to the received control command, so as to resonate different communication frequency bands for the communication of the mobile terminal.

Optionally, in the embodiment of the present invention, a hardware sensor may be used to detect a current mode of the user holding the terminal, or a software may be used to detect the current mode of the user holding the terminal, for example, by detecting that the first feeding point is in a feeding state or the second feeding point is in a feeding state, the efficiency of the antenna is detected, and when the first feeding point is in the feeding state and the second feeding point is in a non-feeding state, if the efficiency of the antenna is less than or equal to a preset threshold, it is determined that the current mode of the user holding the terminal is a left-handed mode; and when the second feeding point is in a feeding state and the first feeding point is in a non-feeding state, if the efficiency of the antenna is less than or equal to a preset threshold value, judging that the current mode of the user holding the terminal is a right-hand mode.

Optionally, the controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal of the user in the embodiment of the present invention includes:

controlling a first feed point or a second feed point of the antenna and/or a resonance switch according to the received control command to resonate different communication frequency bands comprises:

controlling the resonance switch to be in a second path according to the received control instruction, and adjusting a first adjustable capacitor of the first feeding point to be a capacitor of a third value so as to obtain a first intermediate frequency through resonance; or, controlling the resonance switch to be in a second path, loading a second capacitor connected with the second path, and adjusting the first adjustable capacitor at the first feeding point to be a capacitor with a third value so as to obtain a second intermediate frequency through resonance; and/or the presence of a gas in the gas,

It should be noted that, in the embodiment of the present invention, the first numerical value, the second numerical value, the third numerical value, and the fourth numerical value may be designed by referring to the size, the material, the distribution of the elements at the position of the antenna, the size and the structure of the antenna, and the like of the mobile terminal, and may be calculated and adjusted by a person skilled in the art according to the frequency to be obtained by the antenna resonance. In addition, the first capacitor, the second capacitor, the resonant switch and the like in the embodiment of the invention can be existing elements in the related art, and can be selectively applied according to cost, element packaging and the like. The adjustable capacitance of the feed point may be set by a pre-set user interaction interface.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An antenna is characterized in that the antenna is arranged at the bottom of a metal rear shell of a mobile terminal;

wherein,

2. The antenna of claim 1,

the first feed point comprises a first adjustable capacitor; the second feed point comprises a second adjustable capacitor;

the resonance switch is a one-to-three tuning switch;

3. An antenna according to claim 1 or 2, wherein the conductive medium is a metal sheet or a metal sheet embedded in a holster or a metal coating embedded in the holster.

4. The antenna of claim 1 or 2, wherein the distance between the coupling point and the bottom of the metal rear shell is 0.1 mm to 3 mm;

5. The antenna of claim 1 or 2, wherein the distance between the other points on the conductive medium except the coupling point and the short-circuit point and the bottom of the metal rear shell is greater than or equal to 0.5 mm;

6. An antenna according to claim 1 or 2, wherein a point on the conductive medium is coupled to or shorted to the bottom of the metallic back shell.

7. An antenna according to claim 1 or 2, characterized in that a coupling or shorting point is located on a first side of the first feeding point;

8. A mobile terminal comprising an antenna and a controller; wherein,

9. The mobile terminal of claim 8,

the resonant switch includes: a one-to-three tuning switch;

10. The mobile terminal according to claim 8 or 9, wherein the controller is specifically configured to:

11. The mobile terminal according to claim 8 or 9, wherein the controller is specifically configured to:

12. A communication method, applied to a mobile terminal, wherein the mobile terminal comprises an antenna;

the communication method comprises the following steps:

13. The communication method according to claim 12,

the resonance switch is a one-to-three tuning switch;

14. The communication method according to claim 12 or 13, wherein the controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal comprises:

15. The communication method according to claim 12 or 13, wherein the controlling the states of the first feeding point and the second feeding point according to the current mode of the handheld terminal comprises: