CN108258423B

CN108258423B - Terminal equipment and method for improving antenna radiation index

Info

Publication number: CN108258423B
Application number: CN201810071426.4A
Authority: CN
Inventors: 杨怀
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-01-24
Filing date: 2018-01-24
Publication date: 2021-06-22
Anticipated expiration: 2038-01-24
Also published as: CN108258423A

Abstract

The application provides a terminal device, which comprises an antenna component, a controller and a state detection unit, wherein the antenna component comprises an antenna, a radiation direction adjusting unit and a radio frequency transceiver; the antenna is electrically connected with the radio frequency transceiver and the radiation direction adjusting unit, the controller is also electrically connected with the radio frequency transceiver and the radiation direction adjusting unit, the state detecting unit is used for detecting the current working state of the terminal equipment, and the controller is used for controlling the radiation direction adjusting unit to adjust the radiation direction of the antenna to be the first radiation direction and controlling the radio frequency transceiver to increase the working power of the antenna when the state detecting unit detects that the current working state of the terminal equipment is a call state. The application also provides a method for improving the radiation performance of the antenna. The radiation direction of the antenna is changed according to the different working states of the terminal equipment, and the stray radiation exceeding is avoided while the communication quality is guaranteed.

Description

Terminal equipment and method for improving antenna radiation index

Technical Field

The present invention relates to an antenna structure of an electronic device, and more particularly, to a terminal device having an antenna assembly capable of improving antenna radiation performance and a method of improving antenna radiation index.

Background

SAR (Specific Absorption Rate) is an index related to radiation of electronic equipment such as a mobile phone to a human body, is a mandatory authentication index of the electronic equipment at present, is the most complex of all authentications, and is the most difficult problem to solve. Generally, under the condition of high power, when a human body approaches to an antenna of electronic equipment, the energy of the human body can be absorbed by the human body, so that the SAR value exceeds the standard, and potential safety hazards are caused to the human body.

For the SAR value test, two test modes of testing human head and hands and human body are mainly adopted at present, namely that the electronic equipment is attached to the human head and hands and attached to the human body. When the SAR value exceeds the standard, the current general method is to reduce the radiation power to improve the SAR value. Therefore, in the design of the existing electronic device, the radiation power is generally reduced to improve the radiation amount to the human body, so that the SAR value of the electronic device is within the allowable range.

However, although the method for reducing power avoids the SAR value exceeding, the communication quality is affected, and the communication experience of the user is poor.

Disclosure of Invention

The purpose of the application is to provide a terminal device with the antenna component and a method for improving the radiation performance of the antenna, which can effectively reduce the SAR value and ensure the communication quality.

In order to solve the above technical problem, in a first aspect, the present application provides a terminal device, including an antenna assembly, a controller, and a state detection unit, where the antenna assembly includes an antenna, a radiation direction adjustment unit, and a radio frequency transceiver; the antenna is electrically connected with the radio frequency transceiver and the radiation direction adjusting unit, the controller is also electrically connected with the radio frequency transceiver and the radiation direction adjusting unit, the state detecting unit is used for detecting the current working state of the terminal equipment, and the controller is used for controlling the radiation direction adjusting unit to adjust the radiation direction of the antenna to be a first radiation direction and controlling the radio frequency transceiver to increase the working power of the antenna when the state detecting unit detects that the current working state of the terminal equipment is a call state.

In a second aspect, the present application further provides a method for improving antenna radiation performance, where the terminal device includes an antenna and a status detection unit for detecting that a current network of the terminal device is a target network, and the method includes: when the state detection unit detects that the current working state of the terminal equipment is a call state, controlling the radiation direction of the antenna to be adjusted to a first radiation direction; and controlling to increase the operating power of the antenna.

The application provides a terminal equipment with the antenna module and a method for improving the radiation performance of the antenna, the radiation direction of the antenna is determined according to the current working state of the terminal equipment, and the working power of the antenna is determined according to the radiation direction, so that on the premise that the communication quality of the antenna can be guaranteed, the radiation stray of the antenna is guaranteed not to exceed the standard.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a block diagram of a terminal device in an embodiment of the present application.

Fig. 2 is a schematic diagram of radiation energy of the antenna in the embodiment of the present application when radiating in various directions.

Fig. 3 is a schematic structural diagram of a terminal device in an embodiment of the present application.

Fig. 4 is a schematic diagram of radiation energy of the antenna in the embodiment of the present application when radiating in various directions.

Fig. 5 is a schematic structural diagram of an antenna assembly in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of an antenna assembly in another embodiment of the present application.

Fig. 7 is a schematic structural diagram of an antenna assembly in yet another embodiment of the present application.

Fig. 8 is a schematic diagram of an antenna in a terminal device according to an embodiment of the present application, which is disposed on a middle frame.

Fig. 9 is a schematic rear view of a rear cover in a terminal device according to an embodiment of the present application.

Fig. 10 is a flowchart of a method for improving antenna radiation performance in an embodiment of the present application.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and "third," etc. in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Referring to fig. 1, fig. 1 is a block diagram of a terminal device 100 according to an embodiment of the present application, and fig. 1 illustrates some components of the terminal device 100.

As shown in fig. 1, the terminal device 100 includes an antenna assembly 1, a controller 2, and a state detection unit 3. The state detecting unit 3 is configured to detect a current working state of the terminal device 100. Wherein, the working state can be a call state, a standby state, a communication state, etc. The call state includes, but is not limited to, making and receiving calls using dialer software, making and receiving calls using call software, voice chatting using communication application software, e.g., WeChat and QQ, etc.

The antenna assembly 1 includes an antenna 11, a radiation direction adjusting unit 12, and a radio frequency transceiver 13.

The antenna 11 is electrically connected to both the radio frequency transceiver 13 and the radiation direction adjusting unit 12, and the controller 2 is also electrically connected to the radio frequency transceiver 13 and the radiation direction adjusting unit 12. The radiation direction adjusting unit 12 is configured to adjust a radiation direction of the antenna 11, specifically, adjust a radiation direction of an antenna signal of the antenna 11.

The controller 2 is configured to control the radiation direction adjusting unit 12 to adjust the radiation direction of the antenna 11 to a first radiation direction and control the radio frequency transceiver 13 to increase the working power of the antenna 11 when the state detecting unit 3 detects that the current working state of the terminal device 100 is a call state.

The controller 2 is further configured to control the radiation direction adjusting unit 12 to adjust the radiation direction of the antenna 11 to a second radiation direction and control the radio frequency transceiver 13 to reduce the working power of the antenna 11 when the state detecting unit 3 detects that the current working state of the terminal device 100 is not a call state.

In some embodiments, the operating power of the antenna 11 refers to the transmitting and receiving power of the radio frequency transceiver 13 for transmitting and receiving the antenna signal of the antenna 11.

In some embodiments, when the operating state of the terminal device 100 is a call state, the terminal device 100 needs to be brought close to a target object for a call within a preset distance. The target object may be a human body part, for example, a human body part such as a human ear. Wherein the preset distance may be 10CM (centimeter).

Wherein the first radiation direction is a direction deviating from the target object, i.e., a direction in which the target object is not directly radiated. The second radiation direction is an optimal radiation direction of the antenna 11, wherein when the antenna 11 is in the optimal radiation direction, the radiation performance of the antenna 11 is optimal under the same working power.

Therefore, when the current working state of the terminal device 100 is a call state, it indicates that a target object is most likely to approach the terminal device 100, and the radiation direction of the antenna 11 is adjusted to be deviated from the first radiation direction of the target object, so as to avoid directly radiating the target object, reduce the SAR value, improve the working power of the antenna 11, and ensure the communication quality. Further, when the current working state of the terminal device 100 is not a call state, it indicates that the target object is relatively far away from the terminal device 100, the radiation direction of the antenna 100 is adjusted to be the second radiation direction of the optimal radiation direction, and the working power of the antenna 11 is reduced, so that the communication quality is also ensured, and the energy consumption is also reduced.

Referring also to fig. 2, the terminal device 100 further includes a front side S1, a side S2, and a back side S3. Assuming that the first radiation direction is D1, the first radiation direction D1 may be a direction deviating from the outward vertical direction x1 of the front surface S1 by a preset angle θ 1 (e.g., 60 degrees) or more. For example, the radiation direction may be a direction toward the side surface S2 (deviated by 90 degrees) or the rear surface S3 (deviated by 180 degrees) of the terminal device 100.

Referring to fig. 3, the terminal device 100 further includes a display screen 5, and the front surface S1 refers to a surface on which the display screen 5 is located. The rear surface S3 of the terminal device 100 refers to another surface opposite to the front surface S1, and the side surface S2 of the terminal device 100 refers to a surface communicating the front surface S1 and the rear surface S3, and includes four side surfaces S2, i.e., upper, lower, left, and right sides.

In general, when a user uses the terminal device 100, such as a mobile phone, most of the cases that the user needs to place the terminal device 100 closer to the human body are to make a call, and in this case, the front side S1 of the terminal device 100, that is, the side of the display 5, is close to or close to the human body. This often leads to an exceeding of the SAR (specific absorption rate) value.

In this application, work as state detecting element 3 detects when terminal equipment 100 current operating condition is the conversation state, indicates that the target object is close to terminal equipment 100 ' S front S1, will antenna 11 ' S radiation direction adjust to terminal equipment 100 ' S side S2 or back S3 radiate first radiation direction avoids antenna 11 is just to human radiation to can reduce the SAR value, simultaneously, control radio frequency transceiver 13 increases antenna 11 ' S operating power can guarantee that antenna signal ' S intensity meets the demands, and guaranteed communication quality.

When the state detection unit 3 detects that the current operating state of the terminal device 100 is not a call state, it indicates that the target object is not close to the front side S1 of the terminal device 100, and adjusts the radiation direction of the antenna 11 to be the second radiation direction of the optimal radiation direction of the antenna 11, because the same power will have the optimal communication quality when the radiation direction of the antenna 11 is optimal, at this time, the operating power of the antenna 11 can be reduced, and the power consumption can be reduced.

Obviously, in some embodiments, the call state and the first radiation direction may also be set according to other requirements. For example, the call state is a call state in which the terminal device 100 is in a non-handsfree state; or, the call state is a call state in a case where the terminal device 100 is in a non-handsfree state and the terminal device 100 is not connected to an earphone. The first radiation direction may also be a direction deviating from an outward perpendicular direction of the side S2 of the bottom end F1 of the terminal device 100 by the preset angle θ 1 or more. Since the bottom F1 of the terminal device 100 is usually provided with components such as a handset, the SAR value can be reduced even when the user uses a handset close to the bottom F1 to make a call.

In other embodiments, the first radiation direction is a direction deviating from an outward vertical direction x1 of the front side S1 of the terminal device 100 by more than a preset angle θ 1 (e.g., 60 degrees) and deviating from an outward vertical direction of the side S2 of the bottom end of the terminal device 100 by more than the preset angle θ 1.

Thus, the first radiation direction may be a direction deviating from an outward vertical direction of the front surface of the terminal device 100 by more than a preset angle and/or a direction deviating from an outward vertical direction of a side surface of the bottom end of the terminal device 100 by more than the preset angle.

The first radiation direction is designed to avoid a target object such as a person approaching a specific portion of the terminal device 100, and the second radiation direction is an optimal radiation direction designed according to characteristics of the antenna 11 itself. The first radiation direction may be the same as the second radiation direction.

Fig. 4 is a schematic diagram of the radiation energy of the antenna 11 when radiating in various directions. Specifically, fig. 4 is a schematic diagram of the radiation energy when the antenna 11 radiates with the same power in different directions. As shown in fig. 4, when the antenna 11 radiates/transmits the antenna signal in the second radiation direction D2, which is the optimal radiation direction, the radiation energy is the highest, assuming that the second radiation direction is D2. When the antenna 11 radiates an antenna signal in other directions, for example, the first radiation direction D1, if the first radiation direction D1 is different from the second radiation direction D2, the radiation energy is significantly reduced. Accordingly, when no target object approaches the terminal device 100, the radiation direction is set to the second radiation direction D2 of the optimal radiation direction without considering SAR at this time, and the operating power of the antenna 11 is reduced, thereby ensuring the communication quality and saving power consumption. When a target object approaches the terminal device 100, the radiation direction of the antenna 11 is set to the first radiation direction D1, so that the target object can be prevented from being directly radiated, the SAR value is reduced, the working power of the antenna 11 is increased, and the communication quality of the antenna 11 is ensured.

In some embodiments, as shown in fig. 1, the radiation direction adjusting unit 12 includes a first adjusting unit 121, a second adjusting unit 12, and an antenna switch 123. The first adjusting unit 121 and the second adjusting unit 122 are connected between the antenna 11 and the antenna switch 123. The first adjusting unit 121 is configured to control the radiation direction of the antenna 11 to be adjusted to a first radiation direction, and the second adjusting unit 122 is configured to control the radiation direction of the antenna 11 to be adjusted to a second radiation direction.

The controller 2 is further electrically connected to the antenna switch 123, and configured to control the antenna switch 123 to select one of the first adjusting unit 121 and the second adjusting unit 122 to be in an enabled state, so as to adjust the radiation direction of the antenna 11 to be the first radiation direction or the second radiation direction.

Specifically, when the state detection unit 3 detects that the current working state of the terminal device 100 is a call state, the controller 2 indicates that a target object is close to the front side S1 of the terminal device 100, controls the antenna switch 123 to select the first adjusting unit 121 to be in an enabling state, and adjusts the radiation direction of the antenna 11 by using the first adjusting unit 121; when the current operating state of the terminal device 100 is not a call state, the controller 2 indicates that the target object is far away from the front side of the terminal device 100S 1, controls the antenna switch 123 to select the second adjusting unit 122 to be in the enabled state, and adjusts the radiation direction of the antenna 11 to be the second radiation direction through the second adjusting unit 122.

In some embodiments, the first adjusting unit 121 and the second adjusting unit 122 adjust the radiation direction of the antenna 11 by adjusting the antenna parameters of the antenna 11.

The antenna parameters may include antenna feed length, antenna area, and the like, and when the antenna length, the antenna area, and the like of the antenna 11 are changed, the radiation direction of the antenna 11 will be changed correspondingly.

Fig. 5 is a schematic diagram of the antenna element 1 according to an embodiment. As shown in fig. 5, in some embodiments, the first adjusting unit 121 includes a first conductive line L1 electrically connected to a first position J1 of the antenna 11, and the second adjusting unit 122 includes a second conductive line L2 electrically connected to a second position J2 of the antenna 12.

The antenna 11 further includes a feeding point K1, and the feeding point K1 is connected to the antenna matching circuit 15 as a signal feeding point.

The antenna switch 123 is connected between the first conductive line L1, the second conductive line L2, and ground, and is used to select one of the first conductive line L1 and the second conductive line L2 to be grounded, i.e., to select one of the first adjusting unit 121 and the second adjusting unit 122 to be in an enabled state. When the first conductive line L1 is grounded, the antenna 11 is grounded through a first position J1, and when the second conductive line L2 is grounded, the antenna 11 is grounded through a second position J2. Accordingly, the position where the antenna 11 is grounded is different, and the feed length of the antenna 11 is also different, so that the radiation direction of the antenna 11 is changed by changing the feed length of the antenna.

As shown in fig. 5, the antenna switch 123 is a single-pole double-throw switch S1, a fixed contact T1 of the single-pole double-throw switch S1 is grounded, a first movable contact T2 is connected to the first conductive line L1, and a second movable contact T3 is connected to the second conductive line L2. The controller 2 selects one of the first and second conductive lines L1 and L2 to be grounded by controlling the stationary contact T1 of the single pole double throw switch S1 to be connected to one of the first and second movable contacts T2 and T3.

Wherein the first position J1 can be designed according to the radiation direction of the antenna 11 being the best radiation direction when the first position J1 is grounded, and the second position J2 can be designed according to the radiation direction of the antenna 11 being the direction deviating from the functional device 30 when the second position J2 is grounded.

Fig. 6 is a schematic structural diagram of an antenna element 1 according to another embodiment. In another embodiment, the difference from the embodiment shown in fig. 5 is that the antenna switch 123 includes two single-pole single-throw switches, i.e., a first single-pole single-throw switch 133 and a second single-pole single-throw switch 134. The first single pole single throw switch 133 is connected between the ground line L1 and ground, and the second single pole single throw switch 134 is connected between the ground line L2 and ground.

The controller 2 selects one of the ground lines L1, L2 to be grounded by controlling one of the first single-pole single-throw switch 133 and the second single-pole single-throw switch 134 to be turned on.

That is, when the controller 2 controls the antenna switch 123 to select one of the first and second conductive lines L1 and L2 to be grounded, the antenna 11 has different ground points and conductive portions having different areas are connected. Thus, the antenna feed length and the antenna area of the antenna 11 will change simultaneously, thereby changing the radiation direction of the antenna.

Specifically, when the first conductive line L1 is grounded, the antenna 11 is grounded through the first position J1, and the first conductive portion B1 and the antenna 11 together function as a radiator so that the area of the antenna is a first area. When the second conductive line L2 is grounded, the antenna 11 is grounded through the second position J2, and the second conductive portion B2 and the antenna 11 together act as a radiator so that the area of the antenna is a second area.

The antenna 11 is made of a conductive metal material, and is used as a radiator in the antenna assembly 1 to transmit and receive antenna signals.

The first conductive line L1 and the second conductive line L2 are conductive metal strips, and the first conductive part B1 and the second conductive part B2 may be attached to the first conductive line L1 and the second conductive line L2, respectively, and electrically connected to the first conductive line L1 and the second conductive line L2, respectively.

Referring to fig. 7, in some embodiments, the areas of the first position J1 and the first conductive part B1 may be designed according to the radiation direction of the antenna 11 being the optimal radiation direction when the first position J1 is grounded, and the areas of the second position J2 and the second conductive part B2 may be designed according to the radiation direction of the antenna 11 being the direction deviating from the functional device 30 when the second position J2 is grounded.

Therefore, in the application, the working power and the radiation direction of the antenna 11 are comprehensively considered, so that the communication quality can be ensured when the antenna 11 works under different working powers, and the radiation stray can be ensured not to exceed the standard.

As shown in fig. 1, the antenna assembly 1 further includes an antenna matching circuit 14, and the radio frequency transceiver 13 is connected to the antenna 11 through the antenna matching circuit 14; the antenna matching circuit 14 is configured to match impedances between the radio frequency transceiver 13 and the antenna 11, and the radio frequency transceiver 11 is configured to implement transceiving of antenna signals in multiple frequency bands and change an operating power of the antenna 11 in response to control of the controller 2.

The controller 2 can be a central processing unit, a microcontroller, a singlechip, a digital signal processor and the like.

Referring to fig. 8, a cross-sectional view of the terminal device 100 taken along line I-I in fig. 3 according to an embodiment is shown. The side view shown in fig. 8 is a view with a front structure such as the display 5 of the terminal device 100 removed, and only a part of the structure is shown.

The terminal device 100 further includes a rear cover 4 and a circuit board 6, wherein the antenna 11 is disposed on an inner surface of the rear cover 4 or disposed near the rear cover 4, and the controller 2, the radio frequency transceiver 13, the antenna matching circuit 14, and the like are disposed on the circuit board 6.

Fig. 9 is a schematic back view of the terminal device 100. A plurality of slots 41 are disposed on the rear cover 4 corresponding to the antenna 11 to form a clearance area on the rear cover 4 for receiving and transmitting signals of the antenna 11. The plurality of slits are parallel slits, and the plurality of slits 41 are filled with non-metallic materials such as resin materials or glue, so as to enhance the strength of the rear cover 4.

In some embodiments, the plurality of slits 41 are micro-slits, the slit width is 0.05mm, 0.3mm, or any number from 0.05mm to 0.3mm, and the number of slits 41 is 5, 10, or any number from 5 to 10. The maximum slot width of the micro-slots 41 is guaranteed to be 0.05mm, so that the micro-slots 41 cannot be directly distinguished by a user, and the lowest radio frequency efficiency of the rear cover 40 is guaranteed, and conversely, the maximum slot width of the micro-slots 41 is guaranteed to be 0.3mm, so that the micro-slots cannot be identified by the user visually, and the radio frequency efficiency of the rear cover 4 is improved. Also, the number of the micro-slits 41 is controlled to be 5 at minimum to ensure the radiation performance of the rear cover 4, and the number of the micro-slits 41 is controlled to be 10 at maximum to ensure the appearance requirement of the rear cover 4.

Wherein, the rear cover 4 is a metal rear cover. The back surface S3 is an outer surface of the rear cover 4.

The rear cover 4 is further provided with a camera hole 401, and the camera hole 401 is arranged near the top edge 402 of the rear cover 4. The plurality of slits 41 are disposed between the camera hole 401 and the edge of the top edge 402 of the rear cover 40. The plurality of slits 41 extend substantially in the same shape as the top edge 402 of the rear cover 4. That is, each slit 41 includes at least one straight line segment and two circular arc segments connected to both ends of the straight line segment. The camera hole 401 is a double-camera hole and is used for accommodating a double-camera structure formed by two cameras, or the camera hole 401 is an imitated double-camera hole and is used for accommodating an imitated double-camera structure formed by one camera and one flash lamp.

In some embodiments, the antenna 11 and the circuit board 6 are disposed near the top end F2 of the terminal device 100, and the antenna 11 extends along the edge of the top end F2 of the terminal device 100.

In some embodiments, the number of the antennas 11 may be two, and the antennas are respectively disposed near the top end F2 and the bottom end F1 of the terminal device 100. That is, the antenna 11 is provided at a position near both the top end F2 and the bottom end F1 of the terminal device 100.

In some embodiments, as shown in fig. 9, when the antenna 11 is also disposed near the bottom end F1 of the terminal device 100, the plurality of slots 41 are also opened near the bottom edge 403 of the rear cover 4 to serve as clearance areas for the antenna 11. The plurality of slits 41 formed near the bottom 403 of the rear cover are also similar in shape to the extended shape of the bottom 403.

Obviously, when the number of the antennas 11 is two, each antenna 11 is connected to the corresponding radiation direction adjusting unit 12 to perform the foregoing adjustment of the radiation direction under the control of the controller 2, and each antenna 11 is also connected to the corresponding radio frequency transceiver 13 through the antenna matching circuit 14 to change the operating power of the antenna 11 under the control of the controller 2.

The display screen 5 includes a display area 51 and a non-display area 52 located outside the display area 51, and the antenna 11 is disposed at a position corresponding to the non-display area 52 in the terminal device 100.

The circuit board 6 may be a main board of the terminal device 100.

The terminal device 100 may be a mobile phone or a tablet computer. The antenna 11 is a correspondingly shaped and functional antenna radiator, which may be a PIFA antenna or the like, for example.

Fig. 10 is a flowchart illustrating a method for improving antenna radiation index according to an embodiment of the present application. In some embodiments, the method may be applied to the antenna assembly 1 and the terminal device 100, and the method includes the following steps:

the current working state of the terminal device 100 is detected by the state detecting unit 3 (S801). When the state detecting unit 3 detects that the current working state of the terminal device 100 is a call state, step S803 is executed, and when the state detecting unit 3 detects that the current working state of the terminal device 100 is not a call state, step S805 is executed.

When the state detection unit 3 detects that the current working state of the terminal device 100 is a call state, the radiation direction of the antenna 11 is controlled to be adjusted to the first radiation direction, and the working power of the antenna 11 is controlled to be increased (S803). In some embodiments, the first radiation direction is a direction away from the target object. In some embodiments, the first radiation direction is a direction deviating from an outward vertical direction of a front surface of the terminal device 100 by more than a preset angle and/or a direction deviating from an outward vertical direction of a side surface of a bottom end of the terminal device 100 by more than the preset angle.

When the state detecting unit 3 detects that the current operating state of the terminal device 100 is not a call state, the radiation direction of the antenna 11 is controlled to be adjusted to a second radiation direction, and the operating power of the antenna 11 is controlled to be reduced (S805). Wherein the second radiation direction is the optimal radiation direction of the antenna 11.

In some embodiments, the step S803 includes: when the working power of the antenna 11 is the first type of power, switching the radiation direction of the antenna 11 to a second radiation direction of the optimal radiation direction; when the working power of the antenna 11 is the second type of power, switching the radiation direction of the antenna 11 to a first radiation direction deviating from the functional device of the terminal device 100; wherein the power value of the first type of power is smaller than the power value of the second type of power.

Wherein, in some embodiments, the step S803 more specifically includes: the radiation direction of the antenna 11 is adjusted to a first radiation direction by controlling the radiation direction adjustment unit 12 in the antenna assembly 1 and the radio frequency transceiver 13 is controlled to increase the operating power of the antenna 11. More specifically, the "adjusting the radiation direction of the antenna 11 to the first radiation direction by controlling the radiation direction adjusting unit 12 in the antenna assembly 1" includes: the antenna switch 123 in the radiation direction adjusting unit 12 is controlled to select the first adjusting unit 121 in the radiation direction adjusting unit 12 to be in an enabled state, and the radiation direction of the antenna 11 is adjusted by the first adjusting unit 121 to be the first radiation direction.

In some embodiments, the step S805 more specifically includes: and controlling the radiation direction adjusting unit 12 to adjust the radiation direction of the antenna 11 to a second radiation direction, and controlling the radio frequency transceiver 13 to reduce the working power of the antenna 11. More specifically, the "controlling the radiation direction adjustment unit 12 to adjust the radiation direction of the antenna 11 to the second radiation direction" includes: "control the antenna switch 123 in the radiation direction adjusting unit 12 to select the second adjusting unit 122 in the radiation direction adjusting unit 12 to be in the enabled state, and adjust the radiation direction of the antenna 11 to the second radiation direction by the second adjusting unit 122".

In some embodiments, "adjusting the radiation direction of the antenna 11 by the first adjusting unit 121 to the first radiation direction" or "adjusting the radiation direction of the antenna 11 by the second adjusting unit 122 to the second radiation direction" includes: the first adjusting unit 121 or the second adjusting unit 122 adjusts the antenna parameters of the antenna 11 to corresponding antenna parameters, and the radiation direction of the antenna 11 is adjusted to a first radiation direction or a second radiation direction, where the antenna parameters are antenna feed length, antenna area, and the like.

The application provides a terminal equipment with antenna module and method for improving antenna radiation index, according to terminal equipment's current operating condition confirms the radiation direction of antenna to according to the operating power of radiation direction definite antenna, thus under the prerequisite that can guarantee the communication quality of antenna, guarantee simultaneously that the radiation of antenna is stray can not exceed standard.

The foregoing is an implementation of the embodiments of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the embodiments of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. A terminal device is characterized in that the terminal device comprises an antenna component, a controller and a state detection unit, wherein the antenna component comprises an antenna, a radiation direction adjusting unit and a radio frequency transceiver; the antenna is electrically connected with the radio frequency transceiver and the radiation direction adjusting unit, the controller is also electrically connected with the radio frequency transceiver and the radiation direction adjusting unit, the state detecting unit is used for detecting the current working state of the terminal equipment, and the controller is used for controlling the radiation direction adjusting unit to adjust the radiation direction of the antenna to be a first radiation direction and controlling the radio frequency transceiver to increase the working power of the antenna when the state detecting unit detects that the current working state of the terminal equipment is a call state, wherein the first radiation direction can be a direction deviating from an outward vertical direction of the front face of the terminal equipment by more than a preset angle; the terminal equipment further comprises a rear cover, the antenna is arranged on the inner surface of the rear cover or close to the rear cover, and the antenna is arranged at a position close to the top end of the terminal equipment and extends along the edge of the top end of the terminal equipment.

2. The terminal device according to claim 1, wherein the controller is further configured to control the radiation direction adjusting unit to adjust the radiation direction of the antenna to a second radiation direction and control the rf transceiver to reduce the operating power of the antenna when the state detecting unit detects that the operating state of the terminal device is not a call state.

3. The terminal device according to claim 2, wherein the first radiation direction is a direction away from a target object within a preset distance from a front surface of the terminal device, and the second radiation direction is an optimal radiation direction of an antenna.

4. The terminal device according to claim 2 or 3, wherein the radiation direction adjusting unit comprises a first adjusting unit, a second adjusting unit, and an antenna switch, and the controller is configured to control the antenna switch to select one of the first adjusting unit and the second adjusting unit to be in an enabled state to adjust the radiation direction of the antenna to the first radiation direction or the second radiation direction.

5. The terminal device according to claim 4, wherein the controller controls the antenna switch to select the first adjusting unit to be in an enabled state when the state detecting unit detects that the current operating state of the terminal device is a call state, and the first adjusting unit adjusts the radiation direction of the antenna to the first radiation direction; when the state detection unit detects that the current working state of the terminal device is not a call state, the controller controls the antenna switch to select the second adjusting unit to be in an enabling state, and the radiation direction of the antenna is adjusted to be the second radiation direction through the second adjusting unit.

6. The terminal device according to claim 4, wherein the first and second adjusting units adjust the radiation direction of the antenna by adjusting an antenna parameter of the antenna, the antenna parameter including at least one of an antenna feed length and an antenna area.

7. The terminal device as claimed in claim 4, wherein the first adjusting unit comprises a first conductive wire electrically connected to a first position of the antenna, the second adjusting unit comprises a second conductive wire electrically connected to a second position of the antenna, and the antenna switch is connected between the first conductive wire, the second conductive wire and ground for selecting one of the first conductive wire and the second conductive wire to be grounded to change a grounding position of the antenna and thus an antenna feeding length of the antenna.

8. The terminal device according to claim 4, wherein the first adjusting unit includes a first conductive wire electrically connected to a first position of the antenna and a first conductive portion connected to the first conductive wire, the second adjusting unit includes a second conductive wire electrically connected to a second position of the antenna and a second conductive portion connected to the second conductive wire, an area of the first conductive portion is not equal to an area of the second conductive portion, and the antenna switch is connected between the first conductive wire, the second conductive wire and a ground, and is configured to select one of the first conductive wire and the second conductive wire to be grounded to change a grounding position of the antenna and an area of the antenna, thereby changing an antenna feeding length and an area of the antenna.

9. The terminal device of claim 7 or 8, wherein the antenna switch comprises a single pole double throw switch having a fixed contact connected to ground, a first movable contact connected to the first conductive line, and a second movable contact connected to the second conductive line; the controller selects one of the first conductive wire and the second conductive wire to be grounded by controlling the connection of a fixed contact of the single-pole double-throw switch and one of the first movable contact and the second movable contact.

10. The terminal device of claim 7 or 8, wherein the antenna switch comprises a first single pole single throw switch connected between the first conductive line and ground and a second single pole single throw switch connected between the second conductive line and ground; the controller selects one of the first and second conductive lines to be grounded by controlling one of the first and second single-pole single-throw switches to be conductive.

11. The terminal device of claim 1, wherein the antenna assembly further includes an antenna matching circuit through which the radio frequency transceiver connects with the antenna; the antenna matching circuit is used for matching impedance between the radio frequency transceiver and the antenna, and the radio frequency transceiver is used for realizing transceiving of antenna signals of multiple frequency bands and changing working power of the antenna signals in response to control of the controller.

12. A method for improving the radiation performance of an antenna is applied to a terminal device, and is characterized in that the terminal device comprises an antenna and a state detection unit for detecting whether the current working state of the terminal device is a call state, wherein the terminal device further comprises a rear cover, the antenna is arranged on the inner surface of the rear cover or close to the rear cover, and the antenna is arranged at a position close to the top end of the terminal device and extends along the edge of the top end of the terminal device; the method comprises the following steps:

when the state detection unit detects that the current working state of the terminal equipment is a call state, controlling to adjust the radiation direction of the antenna to be a first radiation direction, wherein the first radiation direction can be a direction deviating from an outward vertical direction of the front face of the terminal equipment by more than a preset angle; and

the control increases the operating power of the antenna.

13. The method of claim 12, further comprising:

and when the state detection unit detects that the current working state of the terminal equipment is not a call state, controlling to adjust the radiation direction of the antenna to a second radiation direction and controlling to reduce the working power of the antenna.