CN105514571B - Antenna device and electronic apparatus - Google Patents
Antenna device and electronic apparatus Download PDFInfo
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- CN105514571B CN105514571B CN201410504747.0A CN201410504747A CN105514571B CN 105514571 B CN105514571 B CN 105514571B CN 201410504747 A CN201410504747 A CN 201410504747A CN 105514571 B CN105514571 B CN 105514571B
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Abstract
An antenna device and an electronic apparatus including the same are provided. The electronic device includes: the printed circuit board is positioned in the shell, is used for realizing a preset function and is provided with a first grounding end; an antenna device including a radiation section for radiating and receiving an antenna signal and located in the same clearance area in the electronic apparatus as the printed circuit board, and a second ground; the second ground terminal is located on the radiating part and connected to the first ground terminal. According to the technical scheme of the embodiment of the application, the antenna device and the printed circuit board are shared, and the antenna device and the printed circuit board are arranged in the same clearance area, so that the clearance occupied by the components in the electronic equipment can be saved, and the communication performance and the appearance design requirement of the electronic equipment are considered.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to an antenna device and an electronic device including the antenna device.
Background
The electronic device generally has a communication function to transmit information, data, and the like, and an antenna is provided in a computer, a personal digital assistant, a smartphone, and the like to realize the communication function, for example. The portability and appearance of the electronic device is typically a priority of interest to the user. In order to improve the portability of electronic devices, fabrication processes are improved to reduce the size of the various components of the electronic devices. In order to improve the appearance design of the electronic device, a metal shell can be adopted to make the electronic device have good metal texture and high mechanical strength. However, in an electronic device having a metal case, a metal cover or package such as a metal back case causes a great shielding effect on antenna radiation in the electronic device, thereby affecting the communication performance of the electronic device.
In order to solve the above problem, a conventional solution is to reduce the metal coverage of the electronic device, i.e., only the bezel of the electronic device is made of metal. Or, a part of a metal shell of the electronic device is used as an antenna, and the metal shell is subjected to disconnection processing. The conventional solutions have the following drawbacks: the appearance of the electronic equipment is discontinuous, so that the appearance is attractive, the structural strength of the electronic equipment is reduced, and the electronic equipment is easy to damage or wear in falling.
Therefore, it is desirable to provide sufficient headroom for the antenna to ensure good antenna performance, regardless of the design and size of the electronic device.
Disclosure of Invention
The embodiment of the application provides an antenna device and electronic equipment comprising the same, which can save headroom occupied by component parts in the electronic equipment, thereby giving consideration to the communication performance and appearance design requirements of the electronic equipment.
In a first aspect, an antenna apparatus is provided, which is applied to an electronic device, the electronic device may include a housing and a printed circuit board located in the housing, the printed circuit board being used for implementing a predetermined function and having a first ground terminal, and the antenna apparatus may include: a radiation section for radiating and receiving an antenna signal, the same clearance area as the printed circuit board is located in the electronic apparatus; and a second ground terminal on the radiation part and connected to the first ground terminal.
With reference to the first aspect, in an implementation manner of the first aspect, the electronic device may have a display screen, and the printed circuit board may be located outside an effective display area of the display screen and configured to detect a touch operation of an operating body.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the printed circuit board may include a signal layer for implementing the predetermined function, and a ground layer for connecting to ground, and the first ground terminal may be located in the ground layer of the printed circuit board.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, at least a portion of the radiation portion may be disposed on a ground layer of the printed circuit board.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the printed circuit board may be a flexible printed circuit board having a first surface and a second surface, the signal layer may be located on the first surface of the flexible printed circuit board, and the ground layer may be located on the second surface of the flexible printed circuit board, where the first surface is different from the second surface.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the radiation portion may include a signal layer of the printed circuit board.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the housing may be a metal shell, the printed circuit board may be disposed to abut against a panel of the electronic device, the panel may cover a display area of the electronic device, and the antenna device may be disposed to abut against a rear case of the electronic device.
In a second aspect, an electronic device is provided, which may include: the printed circuit board is positioned in the shell, is used for realizing a preset function and is provided with a first grounding end; an antenna device. The antenna device may include: a radiation section for radiating and receiving an antenna signal, the same clearance area as the printed circuit board is located in the electronic apparatus; and a second ground terminal on the radiation part and connected to the first ground terminal.
With reference to the second aspect, in an implementation manner of the second aspect, the electronic device may further include a display screen, wherein the printed circuit board may be located outside an effective display area of the display screen and configured to detect a touch operation of an operating body.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the printed circuit board may include a signal layer for implementing the predetermined function, and a ground layer for connecting to ground, and the first ground terminal may be located in the ground layer of the printed circuit board.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, at least a portion of the radiation portion may be disposed on a ground layer of the printed circuit board.
With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the printed circuit board may be a flexible printed circuit board having a first surface and a second surface, the signal layer may be located on the first surface of the flexible printed circuit board, and the ground layer may be located on the second surface of the flexible printed circuit board, where the first surface is different from the second surface.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the radiation portion may include a signal layer of the printed circuit board.
With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the housing may be a metal shell, the printed circuit board may be disposed to abut against a panel of the electronic device, the panel may cover a display area of the electronic device, and the antenna device may be disposed to abut against a rear case of the electronic device.
In the technical solution of the antenna device and the electronic device including the antenna device according to the embodiment of the application, the antenna device and the printed circuit board are shared and are arranged in the same clearance area, so that the clearance occupied by the components in the electronic device can be saved, and the communication performance and the appearance design requirement of the electronic device are both considered.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 schematically illustrates a space occupation distribution of constituent elements in a conventional electronic apparatus;
FIG. 2 schematically illustrates a spatial occupancy distribution of components in an electronic device according to an embodiment of the application;
fig. 3 is a block diagram schematically illustrating a first antenna arrangement according to an embodiment of the present application;
fig. 4 is a block diagram schematically illustrating a second antenna arrangement according to an embodiment of the present application;
fig. 5(a) is a schematic diagram illustrating an icon circuit board for touch operation;
fig. 5(b) is a schematic diagram of a circuit board of the synthetically disposed touch icon and antenna device according to an embodiment of the present application;
fig. 6 schematically illustrates an exploded view of various components in an electronic device including an antenna arrangement;
fig. 7 is a block diagram schematically illustrating an electronic device according to an embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. In the present application, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict.
In the present application, when it is described that a specific component (or unit) is located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component; when it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component or may be directly connected to the other components without having an intervening component.
The respective antenna devices according to the embodiments of the present application are applicable to electronic devices, which may be any wireless communication devices such as smart communication terminals, tablet computers, notebook computers, and the like. The electronic device receives an antenna signal from the outside by using the antenna device, and radiates local data, information, and the like as the antenna signal by using the antenna device, thereby performing communication, data transmission, and the like by using the antenna device.
Fig. 1 schematically illustrates a space occupation distribution of constituent elements in a conventional electronic apparatus. As shown in fig. 1, in the design of a conventional electronic device, different spatial regions are typically provided for different components in the electronic device. Specifically, the antenna device occupies the clearance area 1, the circuit board 10 occupies the space area 1, and the circuit board 20 occupies the space area 2. The circuit board 10 and the circuit board 20 may occupy different clearance areas, respectively, or may be positioned to overlap with other components in the electronic device to share the same clearance area. However, the antenna arrangement generally needs to occupy a separate clearance area 1 to ensure good communication performance of the antenna. The electronic apparatus includes a housing for protecting various components therein, such as the above-described antenna device, the circuit board 10, the circuit board 20, and the like.
In the case where the electronic device is a smartphone, the circuit board 10 may be an icon circuit board for detecting a touch operation of a user, and the circuit board 20 may be a display driving circuit board for driving a display device in the electronic device, both of which typically occupy separate headroom areas. As an example, the antenna device may occupy a clearance area of 8 millimeters (mm) in the length direction in the smartphone, the icon circuit board may occupy a clearance area of 5 millimeters (mm) in the length direction in the smartphone, and the display driving circuit board may occupy a clearance area of 5 millimeters (mm) in the length direction in the smartphone. That is, at least 18mm length is required under the display area of the smartphone.
The antenna device, the icon circuit board and the display driving circuit board respectively occupy different headroom of the electronic equipment, resulting in an increase in length of the electronic equipment, thereby limiting the setting of the smartphone. Similarly, similar limitations may exist in other types of electronic devices.
Fig. 2 schematically illustrates a spatial occupancy distribution of components in an electronic device according to an embodiment of the application. As shown in fig. 2, the electronic apparatus includes a housing and an antenna device, a circuit board, and the like located in the housing. Further, the electronic device may also include a display screen, a signal transceiver, a processor, and the like.
In fig. 2, the antenna device does not occupy a separate clearance area as shown in fig. 1, but shares the same clearance area with the circuit board 10. The circuit board 20 may occupy a separate headroom region or may share the same headroom region with other components of the electronic device. The circuit board 10 may be a printed circuit board for implementing a predetermined function. The printed circuit board has a ground terminal.
Taking the case described with reference to fig. 1 as an example, that is, the electronic device is a smartphone, the circuit board 10 is an icon circuit board for detecting a touch operation of a user, and the circuit board 20 is a display driving circuit board for driving a display device in the electronic device. The antenna apparatus shares a headroom area with the icon circuit board, occupying a headroom area of 8 millimeters (mm) in the length direction in the smartphone. The display driver circuit board occupies a clearance area of 5 millimeters (mm) in the length direction in the smartphone. That is, at least a 13mm (i.e., 8mm +5mm) length is required under the display area of the smartphone, saving 5mm in length relative to the design of fig. 1. The arrangement of the antenna arrangement and the printed circuit board in the same clearance area of the electronic device will be described in detail below.
Fig. 3 is a block diagram schematically illustrating a first antenna arrangement 300 according to an embodiment of the present application. The first antenna apparatus 300 is applied to the electronic device described in conjunction with fig. 2. The electronic apparatus includes a housing and a printed circuit board located in the housing, the printed circuit board being for implementing a predetermined function and having a first ground GND 1. As an example, the predetermined function implemented by the printed circuit board may be detecting a touch operation of a user, processing an antenna signal, and the like, and the specific function thereof does not constitute a limitation on the embodiment of the present application. Typically, the electronic device may have a display screen, and the printed circuit board may be located outside an effective display area of the display screen and configured to detect a touch operation of an operating body. Hereinafter, the description will be given taking as an example that the predetermined function is to detect a touch operation of a user. Correspondingly, the printed circuit board is an icon circuit board for detecting touch operation of the operation body.
As shown in fig. 3, the antenna device 300 may include: a radiating section 310 for radiating and receiving antenna signals, located in the same headroom area in the electronic device as the printed circuit board; and a second ground GND2 on the radiation part and connected to the first ground GND 1.
The radiating portion 310 may be typically placed in the housing of the electronic device overlapping the printed circuit board so as to occupy the same clearance area. For example, the radiating portion 310 is adjacent to a first inner surface of the housing, and the printed circuit board is adjacent to a second inner surface of the housing opposite to the first inner surface. In a specific application, the radiation part 310 and the printed circuit board may be appropriately disposed in the same clearance area in combination with the size and shape of the radiation part 310 and the printed circuit board. The radiating portion 310 is used to radiate and receive an antenna signal. When the radiation section and the printed circuit board are independent parts from each other, the printed circuit board may be a circuit having a small size and a small number of lead wire arrangements in order to improve the signal quality of the antenna signal transmitted via the radiation section 310. However, if the wiring of the printed circuit board is taken as a part of the radiation section, the influence of the size of the printed circuit board on the signal quality is not considered.
The size and shape of the radiating portion 310 may be varied accordingly according to the type of the antenna device 300. In the case where the antenna device 300 is a loop antenna, the radiation portion 310 may be a conductor loop. In the case where the antenna device 300 is a slot antenna, the radiation section 310 may be a conductor having a slot; in the case where the antenna device 300 is a monopole antenna, the radiation part 110 may be a conductive branch of different shape formed by a metal wiring; in case the antenna device 300 is a Planar Inverted F Antenna (PIFA), the radiating portion 310 may be an inverted F-shaped conductive branch formed using a metal wire. The radiation section 310 may be implemented by various techniques, which may be present or come out in the future, and may be appropriately selected according to the bandwidth of the antenna device, and the like.
The radiating portion 310 may be directly connected to a transceiver in the electronic device or connected to a transceiver in the electronic device via a matching circuit. The radiating portion 310 may receive an antenna signal from outside the electronic device and feed the received antenna signal to the transceiver for reception to obtain data carried by the antenna signal. The transceiver may also generate a radio frequency signal carrying data and transmit the radio frequency signal to the radiating portion 310 to be radiated via the radiating portion 310, thereby performing communication, data transmission, and the like.
The second ground GND2 is located on the radiation part 310 and connected to the first ground GND 1. As shown in fig. 3, the second ground GND2 may be located at a lower right corner of the radiation part 310. In application, the second ground GND2 may be provided at different positions of the radiation part 310 according to the type of the antenna device. In addition, the number of the ground points of the second ground GND2 may be one, two, or more. The position of the second ground terminal GND2 of the second ground terminal GND2 on the radiation part 310 and the number thereof do not limit the embodiments of the present application.
The printed circuit board may be a flexible printed circuit board (FPC), a rigid printed circuit board, or a hybrid flexible printed circuit board. The shape of the flexible printed circuit board may vary. Accordingly, a flexible printed circuit board is preferably used as the printed circuit board. The printed circuit board may be a single panel, a double-sided board, a multi-layer board, or the like in terms of the number of layers. For example, when the predetermined function of the printed circuit board is simple, it may be a single panel or a double panel; when the intended function of the printed circuit board is complicated, it may be a multilayer board. When the printed circuit board is a multilayer board, the ground layer, the power layer and the signal layer can be included in the printed circuit board. When the printed circuit board has a ground layer, the first ground GND1 may be located in the ground layer.
The radiating portion 310 and the printed circuit board are disposed in the same clearance area (as indicated by the dashed square in fig. 3) with a closer distance therebetween. In the embodiment of the present application, the second ground GND2 of the antenna device is connected to the first ground GND1 of the printed circuit board, so that the radiation part 310 and the printed circuit board can be made to share the same ground, thereby further saving space. As an example, the printed circuit board includes a signal layer for implementing the predetermined function, and a ground layer for connecting to ground, and the first ground GND1 may be located in the ground layer of the printed circuit board. This ground layer in the printed circuit board may reduce its influence on the antenna arrangement.
The radiating portion 310 may also share other portions with the printed circuit board. To further save space occupation. For example, at least a portion of the radiating portion 310 may be disposed on a ground layer of the printed circuit board. That is, at least a portion of the radiating portion 310 may occupy the same layer in the printed circuit board as the ground of the printed circuit board. In designing a printed circuit board, it may not be necessary to arrange a ground completely on a certain layer thereof, but only a few points or all around the layer, especially in case the intended function to be performed by the printed circuit board is relatively simple. At this time, at least a part of the radiation portion 310 may be disposed in an area where no ground is disposed in a ground layer where the ground of the printed circuit board is located, thereby further saving the space occupied by the antenna device and the printed circuit board.
The antenna device 300 may also be implemented as a flexible printed circuit board (FPC), a rigid printed circuit board, or a hybrid flexible printed circuit board, similar to the printed circuit board for implementing predetermined functions.
In the technical solution of the antenna apparatus according to the embodiment of the application, the antenna apparatus and the printed circuit board share the ground, and the antenna apparatus and the printed circuit board are disposed in the same clearance area, so that the clearance occupied by the components in the electronic device can be saved, and the communication performance and the appearance design requirement of the electronic device are both considered.
Fig. 4 is a block diagram schematically illustrating a second antenna arrangement 400 according to an embodiment of the application. In fig. 4, the same parts as those of fig. 3 are denoted by the same reference symbols and thus will not be described in detail.
In fig. 4, the printed circuit board is a flexible printed circuit board FPC having a first surface and a second surface, the ground layer of the printed circuit board is located on the second surface of the flexible printed circuit board, and accordingly, a first ground terminal GND1 is located in the second surface, and a signal layer for processing and transmitting a signal to perform a predetermined function is located on the first surface of the flexible printed circuit board. The first surface is different from the second surface. In fig. 4, the ground layer and the signal layer of the FPC are located on the first surface and the second surface thereof, respectively, which is merely an example. In practical applications, for example, when the FPC is a multilayer circuit board, either of the ground layer and the signal layer may not be located on both surfaces of the circuit board, but may be an intermediate layer.
Unlike fig. 3, the radiation part 310 in fig. 4 includes three parts, i.e., a radiation part 1 on which the second ground terminal GND2 is disposed, a radiation part 2 occupying the same layer (i.e., ground layer) as the ground of the printed circuit board, and a radiation part 3 formed using a signal layer of the printed circuit board. The radiating part 2 occupies the same layer in the printed circuit board as the ground of the printed circuit board, which may further save space occupied by the antenna device and the printed circuit board.
The radiation section 3 is formed by using a signal layer of a printed circuit board. The signal layer on the circuit board has dense metal wiring thereon, and thus may correspond to a radiator for radiating an antenna signal. In this way, antenna signals can be transmitted and received using metal wiring in the signal layer. It is to be noted that the signal layer is also used for transmitting functional signals to realize predetermined functions of the printed circuit board, and in order to reduce mutual interference of the antenna signal and the functional signals, the frequency of the functional signals may be made different from the frequency of the antenna signal.
In practice, one or both of the radiation section 2 in the formation and the radiation section 3 in the signal layer may be combined on the basis of the radiation section 1 in combination with the specific case. To achieve the desired bandwidth and performance of the antenna apparatus 400.
In the technical solution of the antenna apparatus 400 as shown in fig. 4, by sharing the antenna apparatus with the printed circuit board, disposing the antenna apparatus and the printed circuit board in the same clearance area, and implementing a part of the radiation portion in the antenna apparatus in at least one of the ground layer and the signal layer of the printed circuit board, the clearance occupied by the constituent components in the electronic device can be further saved, thereby taking into account the communication performance and the appearance design requirement of the electronic device.
Fig. 5(a) is a schematic diagram illustrating an icon circuit board for touch operation. In fig. 5(a), three square areas marked with diagonal lines are icon circuit boards for touch operation, and signal wirings for connection to the respective square areas are distributed in the remaining portions except for the square areas.
Fig. 5(b) is a schematic diagram of a circuit board of the synthetically disposed touch icon and antenna device according to an embodiment of the present application. As shown in fig. 5(b), the radiating portion and the icon board are located in the same clearance area in the electronic device in a superimposed manner. The upper surface of the circuit board is a signal layer, and the lower surface of the circuit board is a ground layer. The upper surface of the radiating portion is coupled to the lower surface of the icon circuit board, thereby achieving ground sharing of the radiating portion with the icon circuit board. The radiating portion is also coupled to two block regions at both ends of the three block regions of the icon circuit board, thereby making it possible to transmit and receive signals using metal wirings in the block regions of the icon circuit board. That is, the metal wiring in the icon circuit board is provided as a part of the radiation section of the antenna device, which can further reduce the influence of the icon circuit board on the antenna device. As can be seen from fig. 5(b), the antenna device is well integrated with the icon circuit board. As for the shape of the radiation portion of the antenna device, it may be arbitrarily set as required, and a part of the radiation portion may also be set in the ground layer of the icon circuit board.
Fig. 6 schematically illustrates an exploded view of various components in an electronic device including an antenna arrangement. Typically, the antenna assembly is located on the back cover of the electronic device and the icon circuit board is located on the top panel of the electronic device so that the radiating portion of the antenna assembly and the icon circuit board are located in superposition in the same headroom region in the electronic device. The ground layer of the icon circuit board is directly connected to the ground through a spring sheet or welding. As shown in fig. 6, a panel, an icon circuit board, an antenna device, and a rear case are provided in this order from the top to the bottom in the thickness direction of the electronic apparatus. The top of the electronic device is typically provided with a display screen. That is, the printed circuit board is disposed in close proximity to a panel of the electronic device, the panel covering a display area of the electronic device, and the antenna device is disposed in close proximity to a rear case of the electronic device. The shell can be a metal shell or a shell made of other materials. It is noted that in fig. 6, typical relative positions of various parts of the electronic device are only schematically shown, which should not constitute a limitation on the embodiments of the present application.
Fig. 7 is a block diagram schematically illustrating an electronic device according to an embodiment of the application. The electronic device may be any wireless communication device such as a smart communication terminal, a tablet computer, a notebook computer, etc. The electronic device receives an antenna signal from the outside by using the antenna device, and radiates local data, information, and the like as the antenna signal by using the antenna device, thereby performing communication, data transmission, and the like by using the antenna device.
As shown in fig. 7, the electronic device may include: the printed circuit board is positioned in the shell, is used for realizing a preset function and is provided with a first grounding end; an antenna device including a radiation part radiating and receiving an antenna signal and located at the same clearance area in the electronic apparatus as the printed circuit board, and a second ground terminal located on the radiation part and connected to the first ground terminal.
The housing is typically a metal housing that is used to protect various components in the electronic device. Alternatively, the electronic device may have a display screen, as shown by the dashed line in fig. 7.
The predetermined function implemented by the printed circuit board may be detecting a touch operation of a user, processing an antenna signal, and the like, and the specific function of the printed circuit board does not limit the embodiment of the present application. The printed circuit board may be located outside the effective display area of the display screen and used to detect a touch operation of an operating body. The printed circuit board may be a flexible printed circuit board FPC, a rigid printed circuit board, a hybrid flexible printed circuit board. The shape of the flexible printed circuit board may vary. Accordingly, when the clearance area is limited, it is preferable to use a flexible printed circuit board as the printed circuit board. The printed circuit board may be a single panel, a double-sided board, a multi-layer board, or the like in terms of the number of layers. When the printed circuit board is a multi-layer board, the printed circuit board may include a signal layer for implementing the predetermined function, and a ground layer for connecting to ground, and the first ground terminal is located in the ground layer of the printed circuit board. In addition, the printed circuit board may further include a power layer.
The radiating portion may typically be placed in the housing of the electronic device overlapping the printed circuit board so as to occupy the same clearance area. For example, the radiating portion may be proximate to a first inner surface of the housing and the printed circuit board may be proximate to a second inner surface of the housing opposite the first inner surface. In a specific application, the radiation part and the printed circuit board may be appropriately disposed in the same clearance area in combination with the size and shape of the radiation part and the printed circuit board. When the radiation section and the printed circuit board are independent parts from each other, the printed circuit board may be a circuit having a small size and a small number of lead wire arrangements in order to improve the signal quality of the antenna signal transmitted via the radiation section. However, if the wiring of the printed circuit board is taken as a part of the radiation section, the influence of the size of the printed circuit board on the signal quality is not considered.
The size and shape of the radiating portion may be varied accordingly according to the type of the antenna device. The radiation section may be implemented by various techniques, which are present or come out in the future, and may be appropriately selected according to the bandwidth of the antenna device, or the like. The radiating portion may be directly connected to a transceiver in the electronic device or connected to a transceiver in the electronic device via a matching circuit. The radiating portion may receive an antenna signal from outside the electronic device and feed the received antenna signal to the transceiver for reception to obtain data carried by the antenna signal. The transceiver can also generate a radio frequency signal carrying data and transmit the radio frequency signal to the radiating part to be radiated by the radiating part, so as to carry out communication, data transmission and the like. The radiation section may also be implemented as a flexible printed circuit board FPC, a rigid printed circuit board, or a hybrid flexible printed circuit board, similar to the printed circuit board for implementing the predetermined function.
The second ground GND2 is located on the radiation part and connected to the first ground GND 1. In application, the second ground GND2 may be provided at different positions of the radiation part according to the type of the antenna device. In addition, the number of the ground points of the second ground GND2 may be one, two, or more. The position of the second ground terminal GND2 of the second ground terminal GND2 on the radiation part and the number thereof do not limit the embodiments of the present application.
The radiating portion and the printed circuit board are disposed in the same clearance area with a relatively short distance therebetween. In the embodiment of the present application, the second ground GND2 of the antenna device is connected to the first ground GND1 of the printed circuit board, so that the radiating portion and the printed circuit board can be made to share the same ground, thereby further saving space. In the case where the printed circuit board includes a signal layer for implementing the predetermined function and a ground layer for connection to the ground, the first ground GND1 may be located in the ground layer of the printed circuit board. This ground layer in the printed circuit board may reduce its influence on the antenna arrangement.
The radiating portion may also share other parts with the printed circuit board. To further save space occupation. As described in connection with fig. 4, at least a portion of the radiating portion may be disposed on a ground layer of the printed circuit board. That is, at least a portion of the radiating portion may occupy the same layer in the printed circuit board as the ground of the printed circuit board. In designing a printed circuit board, it may not be necessary to arrange a ground completely on a certain layer thereof, but only a few points or all around the layer, especially in case the intended function to be performed by the printed circuit board is relatively simple. At this time, at least a part of the radiation portion may be provided in an area where no ground is arranged in a ground layer where the ground of the printed circuit board is located, thereby further saving the space occupied by the antenna device and the printed circuit board. Furthermore, as described in connection with fig. 4, it is also possible to use the signal layer of the printed circuit board as part of the radiating portion. For example, the printed circuit board may be a flexible printed circuit board having a first surface and a second surface, the signal layer being located on the first surface of the flexible printed circuit board, the ground layer being located on the second surface of the flexible printed circuit board, the first surface being different from the second surface. At this time, the radiation part includes a signal layer of the printed circuit board.
As an example, the relative positions of the various components of the electronic device shown in fig. 7 can be seen in fig. 6 and described in connection with fig. 6. The printed circuit board may be disposed proximate to a panel of the electronic device, the panel covering a display area of the electronic device. The antenna arrangement may be arranged in close proximity to a rear housing of the electronic device. The shell is a metal shell.
As for an example of the arrangement of the antenna device and the printed circuit board in the same clearance area, reference may be made to fig. 5(a) and 5(b) and the related description, which will not be described in detail here.
In the technical solution of the electronic device according to the embodiment of the application, the antenna device and the printed circuit board share the ground and are arranged in the same clearance area, so that the clearance occupied by the components in the electronic device can be saved, and the communication performance and the appearance design requirement of the electronic device are both considered. Further, by implementing a part of the radiation section in the antenna device in at least one of the ground layer and the signal layer of the printed circuit board, the headroom occupied by the component parts in the electronic apparatus can be further saved.
In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and units may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and may be implemented in other ways, such as multiple units or components may be combined or integrated into another component, or some features may be omitted, or not implemented.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An antenna device applied to an electronic apparatus including a housing and a printed circuit board in the housing, the printed circuit board being used for implementing a predetermined function and having a first ground, the antenna device comprising:
a radiating portion for radiating and receiving an antenna signal, the radiating portion being located in the same clearance area in the electronic device as the printed circuit board, wherein the radiating portion is placed in a housing of the electronic device to overlap with the printed circuit board to occupy the same clearance area; the radiating part is close to a first inner surface of the shell, and the printed circuit board is close to a second inner surface of the shell opposite to the first inner surface, wherein the shell is a metal shell, the printed circuit board is arranged to abut against a panel of the electronic equipment, the panel covers a display area of the electronic equipment, and the antenna device is arranged to abut against a rear shell of the electronic equipment;
a second ground terminal on the radiation part and connected to the first ground terminal,
wherein the printed circuit board includes a signal layer for implementing the predetermined function, and a ground layer for connecting to ground, the first ground terminal is located in the ground layer of the printed circuit board, and at least a portion of the radiating part is disposed in a region where a ground line is not disposed on the ground layer of the printed circuit board, the radiating part including the signal layer of the printed circuit board.
2. The antenna device according to claim 1, wherein the electronic apparatus has a display screen, and the printed circuit board is located outside an effective display area of the display screen and is used for detecting a touch operation of an operating body.
3. The antenna device of claim 1, wherein the printed circuit board is a flexible printed circuit board having a first surface and a second surface, the signal layer being located on the first surface of the flexible printed circuit board, the ground layer being located on the second surface of the flexible printed circuit board, the first surface being different from the second surface.
4. An electronic device, comprising:
a shell body, a plurality of first connecting rods and a plurality of second connecting rods,
the printed circuit board is positioned in the shell, is used for realizing a preset function and is provided with a first grounding end;
an antenna device, comprising:
a radiating portion for radiating and receiving an antenna signal, the radiating portion being located in the same clearance area in the electronic device as the printed circuit board, wherein the radiating portion is placed in a housing of the electronic device to overlap with the printed circuit board to occupy the same clearance area; the radiating part is close to a first inner surface of the shell, and the printed circuit board is close to a second inner surface of the shell opposite to the first inner surface, wherein the shell is a metal shell, the printed circuit board is arranged to abut against a panel of the electronic equipment, the panel covers a display area of the electronic equipment, and the antenna device is arranged to abut against a rear shell of the electronic equipment;
a second ground terminal on the radiation part and connected to the first ground terminal;
wherein the printed circuit board includes a signal layer for implementing the predetermined function, and a ground layer for connecting to ground, the first ground terminal is located in the ground layer of the printed circuit board, and at least a portion of the radiating part is disposed in a region where a ground line is not disposed on the ground layer of the printed circuit board, the radiating part including the signal layer of the printed circuit board.
5. The electronic device of claim 4, further comprising a display screen,
the printed circuit board is located outside the effective display area of the display screen and used for detecting touch operation of the operation body.
6. The electronic device of claim 4, wherein the printed circuit board is a flexible printed circuit board having a first surface and a second surface, the signal layer being located on the first surface of the flexible printed circuit board, the ground layer being located on the second surface of the flexible printed circuit board, the first surface being different from the second surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410504747.0A CN105514571B (en) | 2014-09-26 | 2014-09-26 | Antenna device and electronic apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410504747.0A CN105514571B (en) | 2014-09-26 | 2014-09-26 | Antenna device and electronic apparatus |
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| CN105514571A CN105514571A (en) | 2016-04-20 |
| CN105514571B true CN105514571B (en) | 2020-12-18 |
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| WO2019127091A1 (en) * | 2017-12-27 | 2019-07-04 | 深圳市大疆创新科技有限公司 | Antenna assembly and camera comprising antenna assembly |
| WO2020042171A1 (en) * | 2018-08-31 | 2020-03-05 | 深圳市大疆创新科技有限公司 | Electronic device and action camera |
| CN109346823B (en) * | 2018-11-01 | 2020-04-10 | 歌尔股份有限公司 | Bluetooth antenna and Bluetooth device |
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