CN108321497B

CN108321497B - Antenna system and terminal

Info

Publication number: CN108321497B
Application number: CN201810096988.4A
Authority: CN
Inventors: 薛宗林
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-01-31
Filing date: 2018-01-31
Publication date: 2020-07-03
Anticipated expiration: 2038-01-31
Also published as: CN108321497A

Abstract

The disclosure relates to an antenna system and a terminal, and belongs to the field of antenna technology application. The antenna system is arranged on a terminal and comprises a communication antenna; the communication antenna includes: the first radiating unit is arranged on the inner side of a display screen of the terminal, one end of the first radiating unit is provided with a first feeding point, and one end of the first radiating unit, which is provided with the first feeding point, is grounded; the shell of the terminal comprises a top frame and a lower frame which are arranged at intervals, and the first radiation unit is located in the orthographic projection area of the top frame on the display screen. The present disclosure solves the problem of a high complexity of setting an antenna in a terminal in the related art. The present disclosure is directed to providing an antenna in a terminal.

Description

Antenna system and terminal

Technical Field

The present disclosure relates to the field of antenna technology application, and in particular, to an antenna system and a terminal.

Background

An Antenna is a device for transmitting and receiving signals in a terminal, and when the Antenna in the terminal is designed, electronic elements inside the terminal need to be avoided so as to avoid interference on the signals of the Antenna, and generally, a Planar Inverted F-shaped Antenna (PIFA) Antenna, an Inverted F-shaped Antenna (IFA) Antenna, a Loop Antenna, or the like is used as the Antenna in the terminal.

In the related art, when an antenna is designed in a terminal, a signal feed point and a ground point on a circuit board in the terminal are generally connected to a metal top frame of the terminal through spring pieces, the metal top frame is used as a radiating unit, and the frequency of the antenna is tuned through a switch.

However, the current terminal design tends to be light and thin, and when the metal top frame is used as a radiation unit, the antenna routing also needs to consider the structures such as an earphone socket, a radio receiver, a camera and the like so as to prevent the antenna from interfering with the structures, so that the installation space of the antenna in the terminal is small, and the complexity of installing the antenna in the terminal is high.

Disclosure of Invention

The embodiment of the disclosure provides an antenna system and a terminal, which can solve the problems in the related art.

The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, there is provided an antenna system disposed on a terminal, the antenna system including a communication antenna;

the communication antenna includes: the first radiating unit is arranged on the inner side of a display screen of the terminal, one end of the first radiating unit is provided with a first feeding point, and one end of the first radiating unit, which is provided with the first feeding point, is grounded;

the shell of the terminal comprises a top frame and a lower frame which are arranged at intervals, and the first radiation unit is located in the orthographic projection area of the top frame on the display screen.

Optionally, the communication antenna further includes the top frame, the top frame is made of a metal material, and the top frame is grounded;

the first radiation unit is used for generating an intermediate frequency resonance frequency band;

the top frame is used for generating a low-frequency resonance frequency band and a high-frequency resonance frequency band by being coupled with the first radiation unit.

Optionally, the communication antenna further includes: a first circuit board disposed inside the terminal;

a second feeding point is arranged on the first circuit board and electrically connected with the first feeding point;

the first circuit board is provided with a first grounding point, and the first grounding point is electrically connected with one end of the first radiation unit;

and a second grounding point is arranged on the first circuit board and is electrically connected with the top frame.

Optionally, the first circuit board is further provided with at least two frequency modulation electronic components, where the at least two frequency modulation electronic components include a first frequency modulation electronic component and a second frequency modulation electronic component;

the first frequency modulation electronic element is connected in series between the first grounding point and the first radiation unit, and the first frequency modulation electronic element is used for adjusting the intermediate frequency resonance frequency band;

the second frequency modulation electronic component is connected in series between the second grounding point and the top frame, and is used for adjusting the low-frequency resonance frequency band and the high-frequency resonance frequency band.

Optionally, the first circuit board is further provided with a first matching circuit and a first radio frequency signal source, and the first radio frequency signal source is connected to the second feeding point through the first matching circuit;

the first radio frequency signal source is used for providing radio frequency signals to the first radiating element through the second feeding point;

the first matching circuit is used for adjusting the low-frequency resonance frequency band, the medium-frequency resonance frequency band and the high-frequency resonance frequency band.

Optionally, the at least two frequency modulation electronic components further include a third frequency modulation electronic component and a fourth frequency modulation electronic component;

the third frequency-modulation electronic element is connected in series between the second feeding point and the first matching circuit;

the fourth frequency modulation electronic element is connected with the first matching circuit in parallel;

wherein the third frequency-modulating electronic component and the fourth frequency-modulating electronic component are both configured to adjust the mid-frequency resonance band.

Optionally, each frequency modulation electronic component includes four states: a capacitive state, an inductive state, a no-resistance state, and an open circuit state.

Optionally, the frequency modulation electronic component is a change-over switch or a tuner.

Optionally, the frequency range of the medium-frequency resonance frequency band is 1710-2170 MHz and 2300-2400 MHz;

the frequency range of the low-frequency resonance frequency band is 699-960 MHz;

the frequency range of the high-frequency resonance frequency band is 2500-2700 MHz.

Optionally, the first radiation unit is a metal strip structure.

Optionally, the antenna system further includes a wireless fidelity (WIFI) antenna;

the WIFI antenna includes: the second radiation unit is arranged on the inner side of the display screen, and a third feeding point is arranged on the second radiation unit;

the second radiation unit is located the top frame is in the orthographic projection area of display screen, the second radiation unit by the third feed point divides into first radiation subunit and second radiation subunit, first radiation subunit is used for producing the resonant frequency section of first WIFI antenna, the second radiation subunit is used for producing the resonant frequency section of second WIFI antenna.

Optionally, the second radiating element is grounded.

Optionally, the antenna system further includes the top frame, and the top frame is made of a metal material;

the top frame is used for generating a resonant frequency band of the GPS antenna by coupling with the second radiation unit.

Optionally, the WIFI antenna further includes: a second circuit board disposed inside the terminal;

and a fourth feeding point is arranged on the second circuit board and is electrically connected with the third feeding point.

Optionally, the second circuit board is further provided with a second matching circuit and a second radio frequency signal source, and the radio frequency signal source is connected to the fourth feeding point through the second matching circuit;

the second radio frequency signal source is used for providing a radio frequency signal to the second radiation unit through the fourth feeding point;

the second matching circuit is used for adjusting the resonant frequency band of the first WIFI antenna, the resonant frequency band of the second WIFI antenna and the resonant frequency band of the GPS antenna.

Optionally, the second radiation unit is a metal pattern, and the first radiation subunit and the second radiation subunit are both metal strip structures.

Optionally, the second radiation unit is a strip structure, or the second radiation unit is an L-shaped structure.

Optionally, the second radiation unit is an L-shaped structure, the first radiation subunit is parallel to the length extending direction of the top frame, the second radiation subunit is perpendicular to the length extending direction of the top frame, and the length of the first radiation subunit is greater than the length of the second radiation subunit.

Optionally, the length of the first radiation subunit is 20-30 mm;

the length of the second radiation subunit is 5-15 millimeters.

Optionally, the frequency range of the resonant frequency band of the first WIFI antenna is 2400-2500 MHz;

the frequency range of the resonance frequency band of the second WIFI antenna is 5150-5850 MHz.

Optionally, the frequency range of the resonant frequency band of the GPS antenna is 1525 to 1625 MHz.

Optionally, the top frame and the lower frame are connected by at least one metal connecting piece;

wherein an orthographic projection of the at least one metal connector on the display screen is located between the first radiation unit and the second radiation unit.

Optionally, at least one metal connecting piece includes the bar metal connecting piece that two intervals set up, every the width of bar metal connecting piece is 1 ~ 3 millimeters, two the interval between the bar metal connecting piece is 4 ~ 6 millimeters.

Optionally, the at least one metal connecting piece comprises a strip-shaped metal connecting piece, and the width of the strip-shaped metal connecting piece is 5-10 mm.

Optionally, a partition strip is arranged in the gap between the top frame and the lower frame, and the partition strip is made of a dielectric medium.

According to a second aspect of the embodiments of the present disclosure, there is provided a terminal including the antenna system of any one of the first aspect.

Optionally, the terminal further includes: a camera assembly, an earphone socket and a radio receiver;

the antenna system comprises the communication antenna and a WIFI antenna, wherein the communication antenna comprises a first radiation unit arranged on the inner side of the display screen, the WIFI antenna comprises a second radiation unit arranged on the inner side of the display screen, the top frame and the lower frame are connected through at least one metal connecting piece, and the orthographic projection of the at least one metal connecting piece on the display screen is positioned between the first radiation unit and the second radiation unit;

the camera assembly and the second radiating element are located on one side of the at least one metal connector, and the earphone socket, the radio receiver and the first radiating element are located on the other side of the at least one metal connector.

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

when the communication antenna is arranged in the terminal, the first radiation unit is arranged on the inner side of the display screen, less antenna clearance is occupied, the space close to the shell in the terminal is not occupied, the communication antenna can be arranged in a smaller space while electronic elements in the terminal are avoided, and the complexity of arranging the antenna in the terminal is reduced.

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

In order to more clearly illustrate the embodiments of the present disclosure, the drawings that are needed to be used in the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic diagram illustrating an antenna system according to an exemplary embodiment.

Fig. 2 is a schematic diagram illustrating a structure of a communication antenna according to an exemplary embodiment.

Fig. 3 is a schematic diagram illustrating a structure of a first circuit board according to an exemplary embodiment.

Fig. 4A is a schematic diagram of a frequency-modulated electronic component in accordance with an exemplary embodiment.

Fig. 4B is a schematic diagram of another frequency-modulated electronic component in accordance with an exemplary embodiment.

Fig. 5 is a schematic diagram illustrating another antenna system according to an exemplary embodiment.

Fig. 6 is a schematic diagram illustrating a second circuit board according to an exemplary embodiment.

Fig. 7 is a schematic diagram illustrating a structure of another antenna system according to an exemplary embodiment.

Fig. 8 is a block diagram of a terminal according to an exemplary embodiment.

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

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more clear, the present disclosure will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the scope of protection of the present disclosure.

Fig. 1 is a schematic diagram illustrating a structure of an antenna system provided in a terminal according to an exemplary embodiment, and the antenna system includes a communication antenna 10, as shown in fig. 1.

The communication antenna 10 includes: the antenna comprises a first radiating element 101 arranged on the inner side of a display screen A of the terminal, a first feeding point 102 is arranged at one end of the first radiating element 101, and the end, provided with the first feeding point 102, of the first radiating element 101 is grounded (not shown in the figure).

The housing of the terminal comprises a top frame B and a lower frame C which are arranged at intervals, and the first radiation unit 101 is positioned in the forward projection area of the top frame B on the display screen A. Alternatively, a partition bar made of a dielectric may be provided in a space between the top frame and the lower frame. The dielectric medium, also called insulating medium, is a common non-conductive material, and for example, mica, rubber, polystyrene, etc. belong to the dielectric medium. In the disclosed embodiment, the housing of the terminal is divided into two parts by a partition strip, the part located on the upper side of the partition strip is called a top frame, and the top frame comprises a top surface, a side surface and a back surface; the portion located at the lower side of the partition bar is referred to as a lower frame, and the lower frame includes a bottom surface, a side surface, and a back surface.

It should be noted that the first radiating element 101 may be a metal strip structure, the first feeding point 102 is disposed at one end of the first radiating element 101, and one end of the first radiating element 101, at which the first feeding point 102 is disposed, is grounded to form an inverted F antenna, optionally, the length of the first radiating element may be 20 to 30 millimeters, and the first radiating element may be configured to generate an intermediate frequency resonant frequency band. The frequency range of the medium-frequency resonance frequency band is 1710-2170 megahertz (English: MHz) and 2300-2400 MHz.

Furthermore, the antenna system provided by the embodiment of the present disclosure may further include the top frame B, where the top frame is made of a metal material, and the top frame may be used to cooperate with different structures in the antenna system to generate different resonant frequency bands. As an example, the communication antenna 10 may include the top frame B described above, and the top frame is grounded. Optionally, the distance between the first radiating element and the top surface of the top frame may be 0.5 to 1 mm, and the top frame B may be configured to generate a low frequency resonant frequency band and a high frequency resonant frequency band by coupling with the first radiating element 101. The frequency range of the low-frequency resonance frequency band is 699-960 MHz, and the frequency range of the high-frequency resonance frequency band is 2500-2700 MHz.

To sum up, the antenna system that this disclosed embodiment provided, when setting up communication antenna in the terminal, with first radiating element setting in the inboard of display screen, occupy less antenna headroom, and need not to occupy the space that is close to the shell in the terminal, can be when avoiding the inside electronic component of terminal, accomplish communication antenna's setting in less space, reduce the complexity that sets up the antenna in the terminal.

Fig. 2 is a schematic structural diagram of a communication antenna provided in an embodiment of the present disclosure, and as shown in fig. 2, the communication antenna may further include: a first circuit board 103 disposed inside the terminal. A second feeding point 103a is arranged on the first circuit board 103, and the second feeding point 103a is electrically connected with the first feeding point 102; a first grounding point 103b is arranged on the first circuit board 103, and the first grounding point 103b is electrically connected with one end of the first radiating element 101, which is provided with the first feeding point 102; the first circuit board 103 is provided with a second grounding point 103c, and the second grounding point 103c is electrically connected with the top frame B.

In practical application, the second feeding point and the first feeding point may be connected by a spring plate, the first grounding point and the first radiating element may be connected by a spring plate, and the second grounding point and the top frame may be connected by a spring plate. One end of the elastic sheet is welded on the first circuit board, and the other end of the elastic sheet is abutted with a designated point (such as a first feeding point, a first radiation unit or a top frame) so as to achieve the effect of electric connection.

Optionally, fig. 3 is a schematic structural diagram of a first circuit board provided in the embodiment of the present disclosure, and as shown in fig. 3, at least two frequency modulation electronic components are further disposed on the first circuit board 103, where the at least two frequency modulation electronic components include a first frequency modulation electronic component 103d and a second frequency modulation electronic component 103 e. The first frequency modulation electronic element 103d is connected in series between the first grounding point 103b and the first radiating unit 101, and is used for adjusting the intermediate frequency resonance frequency band; a second frequency-modulating electronic component 103e is connected in series between the second ground point 103c and the top frame B, the second frequency-modulating electronic component being used for adjusting the low-frequency resonance frequency band and the high-frequency resonance frequency band. The frequency ranges of the current communication frequency bands comprise 699-960 MHz, 1710-2170 MHz, 2300-2400 MHz and 2500-2700 MHz, and each resonance frequency band is adjusted through a frequency modulation electronic element, so that the resonance frequency band generated by the communication antenna can cover each communication frequency band, and the communication quality of the terminal is improved.

It should be noted that, in the embodiment of the present disclosure, the frequency range of the low-frequency resonance frequency band is adjusted by the second frequency modulation electronic component, so that the frequency range of the low-frequency resonance frequency band is 699-960 MHz, and the problem of large loss of the low-frequency band in the related art is solved, thereby improving the communication quality of the terminal.

Further, as shown in fig. 3, the first circuit board may further be provided with a first matching circuit 103f and a first rf signal source 103g, and the first rf signal source 103g is connected to the second feeding point 103a through the first matching circuit 103 f. The first radio frequency signal source is used for providing radio frequency signals to the first radiating element through the second feeding point; the first matching circuit is used for adjusting a low-frequency resonance frequency band, a medium-frequency resonance frequency band and a high-frequency resonance frequency band. The antenna is matched by the first matching circuit, so that the antenna can better receive radio frequency signals. For example, the resonant frequency of the antenna can be matched by adjusting the matching parameters and changing the operating frequency of the antenna matching circuit. For example, as shown in fig. 3, the first matching circuit may include two capacitors, two inductors, and two ground points, wherein the two capacitors are connected in series between the second feeding point 103a and the first rf signal source 103 g; one end of an inductor is connected between the capacitor and the second feeding point 103a, and the other end is connected with a grounding point; one end of the other inductor is connected between the two capacitors, and the other end of the other inductor is connected with the other grounding point.

Optionally, as shown in fig. 3, the at least two fm electronic components may further include a third fm electronic component 103h and a fourth fm electronic component 103 i. A third frequency-modulated electronic component 103h is connected in series between the second feeding point 103a and the first matching circuit 103 f; the fourth frequency-modulated electronic component 103i is connected in parallel with the first matching circuit 103 f; the third frequency modulation electronic element and the fourth frequency modulation electronic element can be used for adjusting the intermediate frequency resonance frequency band.

In the embodiment of the present disclosure, each of the frequency modulation electronic elements may include four states: a capacitive state, an inductive state, a no-resistance state, and an open circuit state. When the frequency modulation electronic element is in a capacitance state, the frequency modulation electronic element is equivalent to a capacitor; when the frequency modulation electronic element is in an inductance state, the frequency modulation electronic element is equivalent to an inductance; when the frequency modulation electronic element is in a non-resistance state, the frequency modulation electronic element is equivalent to a conducting wire; when the frequency modulation electronic element is in an open circuit state, the frequency modulation electronic element is equivalent to a breakpoint.

Alternatively, as shown in fig. 4A, the frequency modulation electronic component may be a Switch (english: Switch), and the Switch includes a control chip S₁And four selectable switches T₁The control chip can realize the conversion of different states by controlling the states of the four selectable switches; alternatively, as shown in FIG. 4B, the frequency-modulating electronic component may be a Tuner (Tuner) including a control chip S₂And a tunable element T₂And the control chip can realize the conversion of different states by controlling the state of the tunable element.

Further, fig. 5 is a schematic structural diagram of another antenna system according to an exemplary embodiment, and as shown in fig. 5, the antenna system may further include a Wireless Fidelity (WIFI) antenna.

The WIFI antenna includes: and a second radiation unit 201 arranged inside the display screen a, wherein a third feeding point 202 is arranged on the second radiation unit 201.

The second radiation unit is located in the orthographic projection area of the top frame B on the display screen a, the second radiation unit 201 is divided into a first radiation subunit 201a and a second radiation subunit 201B by a third feed point 202, the first radiation subunit is used for generating a resonant frequency band of the first WIFI antenna, and the second radiation subunit is used for generating a resonant frequency band of the second WIFI antenna.

Optionally, the second radiation element 201 may be a metal pattern, the first radiation subunit 201a and the second radiation subunit 201b are both metal strip structures, the third feeding point and the first radiation subunit form a monopole antenna, and the third feeding point and the second radiation subunit form another monopole antenna.

Optionally, the second radiating element may be further grounded, so that the third feeding point and the first radiating sub-element form an inverted-F antenna, and the third feeding point and the second radiating sub-element form another inverted-F antenna.

The second radiation unit may have a strip structure, or the second radiation unit may have an L-shaped structure. It should be noted that, when the terminal is a mobile phone or other electronic product with a small size, the second radiating unit may have an L-shaped structure, so as to reduce the space occupied by the WIFI antenna in the terminal width direction.

Optionally, as shown in fig. 5, when the second radiation unit is in an L-shaped structure, the first radiation subunit 201a is parallel to the length extending direction of the top frame B, the second radiation subunit 201B is perpendicular to the length extending direction of the top frame B, and the length of the first radiation subunit 201a is greater than the length of the second radiation subunit 201B.

In the embodiment of the present disclosure, the length of the first radiating subunit may be 20-30 mm; the length of the second radiating subunit can be 5-15 mm.

Correspondingly, the frequency range of the resonant frequency band of the first WIFI antenna is 2400-2500 MHz, namely, the resonant frequency band of the first WIFI antenna is 2.4 GHz; the frequency range of the resonant frequency band of the second WIFI antenna is 5150-5850 MHz, namely, the resonant frequency band of the second WIFI antenna is 5 GHz.

In practical application, a monopole antenna or an inverted-F antenna can be separately arranged at a position close to the edge of the screen side of the terminal, so that WIFI coverage of a 5GHz frequency band is realized on the premise of not influencing other antennas and occupying less antenna headroom, and the corresponding setting position and structure can refer to the setting position and structure of the second radiation subunit in fig. 5, which is not described herein any more.

It should be noted that, when the WIFI antenna is set in the terminal, the antenna system provided in the embodiment of the present disclosure sets the second radiation unit inside the display screen, occupies less antenna headroom, and does not need to occupy a space near the housing in the terminal, so that the setting of the WIFI antenna can be completed in a smaller space while avoiding an electronic component inside the terminal, thereby reducing the complexity of setting the antenna in the terminal.

Optionally, a distance between the first radiating subunit and the top surface of the top frame may be 0.5 to 3 mm, a distance between the second radiating subunit and the side surface of the top frame may be 0.5 to 3 mm, and when the antenna system includes the top frame B, the top frame may be further configured to couple with the second radiating unit to generate a resonant frequency band of a Global Positioning System (GPS) antenna. The frequency range of the resonance frequency band of the GPS antenna is 1525-1625 MHz.

It should be noted that, the WIFI antenna further includes: a second circuit board disposed inside the terminal.

Optionally, fig. 6 is a schematic structural diagram of a second circuit board provided in the embodiment of the present disclosure, as shown in fig. 6, a fourth feeding point 203a is disposed on the second circuit board 203, and the fourth feeding point 203a is electrically connected to the third feeding point. In practical application, the fourth feeding point and the third feeding point can be connected through the elastic sheet, one end of the elastic sheet is welded on the second circuit board, and the other end of the elastic sheet is abutted against the third feeding point so as to achieve the effect of electric connection.

Further, a second matching circuit 203b and a second rf signal source 203c may be disposed on the second circuit board 203. Wherein the rf signal source 203c is connected to the fourth feeding point 203a via the second matching circuit 203 b. The second radio frequency signal source is configured to provide a radio frequency signal to the second radiating element through the fourth feeding point, that is, the second radio frequency signal source is configured to provide a radio frequency signal to the first radiating subunit and the second radiating subunit through the fourth feeding point, respectively; the second matching circuit is used for adjusting the resonant frequency band of the first WIFI antenna, the resonant frequency band of the second WIFI antenna and the resonant frequency band of the GPS antenna. The second matching circuit is arranged to match the antenna, so that the antenna can better receive radio frequency signals. For example, the resonant frequency of the antenna can be matched by adjusting the matching parameters and changing the operating frequency of the antenna matching circuit. For example, as shown in fig. 6, the second matching circuit may include two capacitors, two inductors and two grounding points, wherein the two capacitors are connected in series between the fourth feeding point 203a and the second rf signal source 203 c; one end of an inductor is connected between the capacitor and the fourth feeding point 203a, and the other end of the inductor is connected with a grounding point; one end of the other inductor is connected between the two capacitors, and the other end of the other inductor is connected with the other grounding point.

In practical application, the first circuit board and the second circuit board may be an integrated structure, or may be two separate circuit boards. Optionally, the first circuit Board and the second circuit Board may be printed circuit boards (PCBs for short).

Still further, fig. 7 is a schematic structural diagram of another antenna system according to an exemplary embodiment, wherein the top frame B and the bottom frame C may be connected by at least one metal connecting member 30; wherein, the orthographic projection of the at least one metal connecting piece 30 on the display screen a is positioned between the first radiation unit 101 and the second radiation unit 201. It should be noted that the top frame and the lower frame are connected through at least one metal connecting piece, signals sent by different antennas on the terminal can be isolated, mutual interference between communication signals and WIFI signals is reduced, and overall antenna performance on the terminal is improved.

Optionally, as shown in fig. 7, the at least one metal connecting member may include two strip-shaped metal connecting members 30 arranged at intervals, the width of each strip-shaped metal connecting member is 1-3 mm, and the interval between the two strip-shaped metal connecting members is 4-6 mm. Or, at least one bar metal connecting piece can include a bar metal connecting piece, and the width of this bar metal connecting piece is 5 ~ 10 millimeters.

It should be noted that two strip-shaped metal connecting pieces arranged at intervals are arranged between the top frame and the lower frame, so that the loss of materials can be reduced while signals on two sides of the strip-shaped metal connecting pieces are isolated, and the manufacturing cost is reduced.

To sum up, the antenna system that this disclosed embodiment provided, when setting up communication antenna in the terminal, set up first radiating element in the inboard of display screen, when setting up the WIFI antenna in the terminal, set up the second radiating element in the inboard of display screen, and produce the frequency channel of GPS antenna by the top frame and the coupling of second radiating element at terminal, occupy less antenna headroom, and need not to occupy the space that is close to the shell in the terminal, can be when avoiding the inside electronic component of terminal, accomplish communication antenna in less space, the setting of WIFI antenna and GPS antenna, reduce the complexity that sets up the antenna in the terminal.

The disclosed embodiment provides a terminal, which can be a smart phone, a computer, a multimedia player, an e-reader, a wearable device, and the like. The terminal may include any of the antenna systems described above, for example, the antenna system shown in fig. 1, fig. 5, or fig. 7.

Further, as shown in fig. 8, the terminal may further include: camera module 02, headphone jack 03 and radio receiver 04. The camera assembly 02 may include a front camera 021 and a rear camera 022, among others.

The antenna system comprises a communication antenna and a WIFI antenna, wherein the communication antenna comprises a first radiation unit 101 arranged on the inner side of a display screen A, the WIFI antenna comprises a second radiation unit 201 arranged on the inner side of the display screen A, a top frame B is connected with a lower frame C through at least one metal connecting piece 30, and the orthographic projection of the at least one metal connecting piece 30 on the display screen A is located between the first radiation unit 101 and the second radiation unit 201.

Optionally, the camera module 02 and the second radiation unit 201 are located on one side of the at least one metal connector 30, and the earphone socket 03, the radio receiver 04 and the first radiation unit 101 are located on the other side of the at least one metal connector 30. When avoiding the inside electronic component of terminal, accomplish the setting of communication antenna, WIFI antenna and GPS antenna in less space, reduce the complexity that sets up the antenna in the terminal.

The terminal may also include one or more of the following components: processing components, memory, power components, multimedia components, audio components, interfaces for input/output (I/O), sensor components, and communication components.

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

The memory is configured to store various types of data to support operations at the terminal. Examples of such data include instructions for any application or method operating on the terminal, contact data, phonebook data, messages, pictures, videos, etc. The memory 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 supply component provides power to the various components of the terminal. The power components may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal.

The multimedia component comprises a screen providing an output interface between said terminal 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 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the terminal is in an operation mode, such as a photographing mode or a video mode. 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 is configured to output and/or input an audio signal. For example, the audio component includes a Microphone (MIC) configured to receive an external audio signal when the terminal is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in a memory or transmitted via a communication component. In some embodiments, the audio assembly further comprises a speaker for outputting audio signals.

The I/O interface provides an interface between the processing component and a peripheral interface module, which may be a keyboard, click wheel, button, 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 assembly includes one or more sensors for providing various aspects of status assessment to the terminal. For example, the sensor assembly may detect an open/closed state of the terminal, the relative positioning of the components, such as a display and keypad of the terminal, the sensor assembly may also detect a change in position of the terminal or a component of the terminal, the presence or absence of user contact with the terminal, orientation or acceleration/deceleration of the terminal, and a change in temperature of the terminal. The sensor assembly may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 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 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component is configured to facilitate wired or wireless communication between the terminal and other devices. The terminal 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 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 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.

To sum up, the terminal that this disclosed embodiment provided, when setting up communication antenna in the terminal, set up first radiating element in the inboard of display screen, when setting up the WIFI antenna in the terminal, set up the inboard at the display screen with the second radiating element, and produce the frequency channel of GPS antenna by the top frame and the coupling of second radiating element at terminal, occupy less antenna headroom, and need not to occupy the space that is close to the shell in the terminal, can be when avoiding the inside electronic component of terminal, accomplish communication antenna in less space, the setting of WIFI antenna and GPS antenna, reduce the complexity that sets up the antenna in the terminal.

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

It will be understood that the present disclosure 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 present disclosure is limited only by the appended claims.

Claims

1. An antenna system, wherein the antenna system is provided on a terminal, the antenna system comprising a communication antenna;

the shell of the terminal comprises a top frame and a lower frame which are arranged at intervals, and the first radiation unit is positioned in an orthographic projection area of the top frame on the display screen;

the communication antenna also comprises the top frame, the top frame is made of metal materials, and the top frame is grounded;

2. The antenna system of claim 1, wherein the communication antenna further comprises: a first circuit board disposed inside the terminal;

3. The antenna system of claim 2, wherein the first circuit board further has disposed thereon at least two frequency modulation electronics, the at least two frequency modulation electronics including a first frequency modulation electronics and a second frequency modulation electronics;

4. The antenna system of claim 3, wherein the first circuit board further has a first matching circuit and a first RF signal source, and the first RF signal source is connected to the second feeding point through the first matching circuit;

5. The antenna system of claim 4, wherein the at least two frequency modulation electronics further comprise third frequency modulation electronics and fourth frequency modulation electronics;

6. The antenna system of claim 3, wherein each of the frequency modulating electronic components includes four states: a capacitive state, an inductive state, a no-resistance state, and an open circuit state.

7. The antenna system of claim 6,

the frequency modulation electronic element is a change-over switch or a tuner.

8. The antenna system of claim 1,

the frequency ranges of the medium-frequency resonance frequency band are 1710-2170 MHz and 2300-2400 MHz;

9. The antenna system according to any of claims 1 to 8,

the first radiation unit is of a metal strip structure.

10. The antenna system of claim 1, further comprising a WIFI antenna;

11. The antenna system of claim 10, wherein the second radiating element is grounded.

12. The antenna system according to claim 10 or 11, further comprising the top frame, wherein the top frame is made of a metal material;

13. The antenna system of claim 12, wherein the WIFI antenna further comprises: a second circuit board disposed inside the terminal;

14. The antenna system of claim 13, wherein a second matching circuit and a second rf signal source are further disposed on the second circuit board, and the rf signal source is connected to the fourth feeding point through the second matching circuit;

15. The antenna system according to claim 10 or 11, wherein the second radiating element is a metal pattern, and the first radiating sub-element and the second radiating sub-element are both metal strip structures.

16. The antenna system of claim 15,

the second radiation unit is of a strip structure, or the second radiation unit is of an L-shaped structure.

17. The antenna system of claim 16, wherein the second radiating element is an L-shaped structure, the first radiating sub-element is parallel to a length extending direction of the top frame, the second radiating sub-element is perpendicular to the length extending direction of the top frame, and a length of the first radiating sub-element is greater than a length of the second radiating sub-element.

18. The antenna system of claim 17,

the length of the first radiation subunit is 20-30 mm;

the length of the second radiation subunit is 5-15 millimeters.

19. The antenna system of claim 17 or 18,

the frequency range of the resonant frequency band of the first WIFI antenna is 2400-2500 MHz;

20. The antenna system of claim 12,

the frequency range of the resonance frequency band of the GPS antenna is 1525-1625 MHz.

21. The antenna system of claim 10 or 11, wherein the top frame and the bottom frame are connected by at least one metal connector;

22. The antenna system of claim 21,

at least one metal connecting piece includes the bar metal connecting piece that two intervals set up, every the width of bar metal connecting piece is 1 ~ 3 millimeters, two the interval between the bar metal connecting piece is 4 ~ 6 millimeters.

23. The antenna system of claim 21,

at least one metal connecting piece includes a bar metal connecting piece, bar metal connecting piece's width is 5 ~ 10 millimeters.

24. The antenna system of claim 21, wherein a partition bar is disposed in a space between the top frame and the lower frame, the partition bar being made of a dielectric.

25. A terminal, characterized in that the terminal comprises an antenna system according to any of claims 1 to 24.

26. The terminal according to claim 25, further comprising: a camera assembly, an earphone socket and a radio receiver;