CN108288754B - Antenna assembly and terminal equipment - Google Patents
Antenna assembly and terminal equipment Download PDFInfo
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- CN108288754B CN108288754B CN201711023806.2A CN201711023806A CN108288754B CN 108288754 B CN108288754 B CN 108288754B CN 201711023806 A CN201711023806 A CN 201711023806A CN 108288754 B CN108288754 B CN 108288754B
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- 239000002184 metal Substances 0.000 claims description 42
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- 230000005855 radiation Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000003071 parasitic effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The antenna assembly and the terminal equipment provided by the invention comprise a grounding structure, a near-field communication chip, a first radiator and a second radiator, wherein the signal wire of the near-field communication chip comprises a first signal wire and a second signal wire which are connected in series, the first signal wire, the first radiator, the grounding structure, the second radiator and the second signal form a loop together, when the near-field communication chip works, the loop formed by encircling the first signal wire, the first radiator, the grounding structure, the second radiator and the second signal is used for transmitting near-field communication signals, and at the moment, the parts of the first radiator and the second radiator which are connected into the loop are used as near-field communication antennas, so that compared with the related art, the connection part of the near-field communication antennas is obviously longer, the radiation range is wider, the read-write performance of the near-field communication signals is effectively improved, the near-field communication transmission effect of the terminal equipment is improved, and the duration competitiveness of products is further improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna assembly and a terminal device.
Background
Currently, near Field Communication (NFC) is used to realize near field communication on a terminal device, which is an increasing demand of users when selecting the terminal device, and after terminal devices having LTE (long term evolution)), WIFI (wireless fidelity), GPS (global positioning system), bluetooth and other communication systems, two common setting modes are set by setting NFC: 1. the upper metal strip is divided into two parts through a conduction point, the NFC antenna and the LTE upper antenna share the longer part of the upper metal strip, and the GPS/WIFI antenna uses the longer part of the upper metal strip, but the NFC antenna radiator is shorter, the inductance is small, and the read-write card performance is poor; 2. the upper metal strip is not grounded, two ends are respectively connected with the differential feed-in ends of NFC, the whole metal strip is used as the radiator antenna of NFC, the NFC antenna is increased, but the isolation between the GPS/WIFI antenna and the antenna on LTE is poor, and the performance of the GPS/WIFI antenna and the antenna on LTE is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art.
To this end, it is an object of the present invention to provide an antenna assembly.
An object of the present invention is to provide a terminal device.
To achieve the above object, according to an embodiment of the present invention, there is provided an antenna assembly for a terminal device, the antenna assembly including: a grounding structure; the signal wire of the near field communication chip comprises a first signal wire and a second signal wire which are connected in series; the first radiator is connected with the first end of the grounding structure, and the first signal wire is connected with the first radiator; the second radiator is connected with the second end of the grounding structure, and the second signal wire is connected with the second radiator; the first signal line, the first radiator, the grounding structure, the second radiator and the second signal line form a loop.
The antenna assembly comprises a grounding structure, a near-field communication chip, a first radiator and a second radiator, wherein the signal wire of the near-field communication chip comprises a first signal wire and a second signal wire which are connected in series, the first end of the grounding structure is connected with the first radiator, the second end of the grounding structure is connected with the second radiator, and the first radiator and the second radiator are respectively connected with the first signal wire and the second signal wire at one end, far away from the grounding structure, of the first radiator, the grounding structure, the second radiator and the second signal wire, so that the first signal wire, the first radiator, the grounding structure, the second radiator and the second radiator form a loop together. It is conceivable that the near field communication chip may be a near field communication chip such as an NFC chip, a wireless charging chip, or the like.
Preferably, the first radiator may be disposed above the rear cover of the terminal device, and the second radiator is disposed below the rear cover of the terminal device, so that when the near field communication signal forms a loop, the coverage area of the loop formed by surrounding the first radiator is as large as possible, and the inductance formed in the loop is ensured to be large. In addition, the first radiator and the second radiator are respectively arranged above and below the rear cover of the terminal equipment, so that the first radiator and the second radiator can be distributed above and below the terminal equipment when the access loop forms a near field communication antenna, the upper end and the lower end of the terminal equipment can both receive and transmit near field communication signals when the user uses the terminal equipment to carry out near field communication, the use occasion of the user can be effectively expanded, and the near field communication signals can also be received and transmitted when the user takes the terminal equipment reversely.
In addition, the antenna assembly provided by the embodiment of the invention has the following additional technical features:
in any of the foregoing solutions, preferably, the antenna assembly further includes: a first decoupling device disposed on the first signal line; and a second decoupling device disposed on the second signal line.
In the technical scheme, the antenna assembly further comprises a first decoupling device and a second decoupling device, the first decoupling device is arranged on the first signal line, so that when the first signal line is connected with the first radiator, the first decoupling device is ensured to effectively eliminate parasitic coupling between circuits, interference of near field communication signals on other frequency band functional antennas is avoided, and meanwhile performance of the near field communication signals is also prevented from being influenced by other functional antennas; and the second decoupling device is arranged on the second signal wire, so that when the second signal wire is connected with the second radiator, the second decoupling device is ensured to effectively eliminate parasitic coupling between circuits, interference of near field communication signals to other frequency band functional antennas is avoided, interference of the near field communication signals to other frequency band functional antennas is avoided, and meanwhile, the performance of the near field communication signals is also prevented from being influenced by other functional antennas.
In any of the foregoing solutions, preferably, the antenna assembly further includes: the first connecting point is arranged between the first radiator and the grounding structure and connects the first radiator with the grounding structure; and the second connecting point is arranged between the second radiator and the grounding structure and connects the second radiator with the grounding structure.
In the technical scheme, the antenna assembly further comprises a first connecting point and a second connecting point, the first connecting point is arranged between the first radiator and the grounding structure, the first connecting point is used for connecting the first radiator with the grounding structure, the second connecting point is arranged between the second radiator and the grounding structure, the second connecting point is used for connecting the second radiator with the grounding structure, and parasitic coupling between circuits can be effectively eliminated by the first connecting point; and the first connecting point and the second connecting point are respectively arranged at two ends of the grounding structure, so that the first connecting point and the second connecting point can be connected between a first signal wire, a first radiator, the grounding structure, a second radiator and a second signal forming loop.
It is conceivable that the first connection point and the second connection point are used for realizing connection and isolation between the first radiator and the second radiator and the grounding structure respectively, and the first connection point and the second connection point can be set as a rib position, a metal elastic sheet, a flexible circuit board, a decoupling circuit or a decoupling electric appliance, so that connection and isolation between the first radiator and the second radiator and the grounding structure respectively can be realized; meanwhile, in order to facilitate the arrangement of the first connecting point and the second connecting point between the first radiator and the second radiator and the grounding structure, the first radiator, the first connecting point and the grounding structure can be all arranged into an integrated structure, and the second radiator, the second connecting point and the grounding structure are all arranged into an integrated structure, so that on one hand, the arrangement steps of the first connecting point and the second connecting point can be simplified; on the other hand, the first connecting point and the second connecting point can be effectively guaranteed to effectively isolate the first radiator from the second radiator.
In any of the above embodiments, preferably, the first signal line is a metal signal line; and/or the second signal line is a metal signal line.
In this technical scheme, can set up first signal line and second signal line as the metal signal line, when the distance between first radiator and the second radiator is longer, first signal line and second signal line need set up longer length and just can be connected to first radiator and second radiator, consequently, in order to guarantee that the in-process signal transmission effect at the connection is better, consequently set up first signal line and second signal as the metal signal line newly, guarantee the effective transmission between the signal of telecommunication.
In any of the above-described aspects, preferably, the first signal line is connected to an end of the first radiator, and the second signal line is connected to an end of the second radiator.
In the technical scheme, the first signal wire is arranged to be connected with the end part of the first radiator, and the second signal wire is arranged to be connected with the end part of the second radiator, so that the lengths of the first radiator and the second radiator which are connected to the loop are as large as possible when the first radiator and the second radiator are connected, the first radiator and the second radiator can be used as near field communication antennas as much as possible, the radiator lengths of the near field communication antennas are increased as much as possible, and the communication effect of the near field communication antennas is improved.
In any of the foregoing solutions, preferably, the antenna assembly further includes: the two communication signal ports are respectively connected with the first radiator and the second radiator; the GPS/WiFi signal port is connected with the first radiator; the first connecting point divides the first radiator into a full-frequency-band area and a middle-high-frequency-band area, the communication signal port is connected with the full-frequency-band area, and the GPS/WiFi signal port is connected with the middle-high-frequency-band area.
In the technical scheme, the antenna assembly further comprises two communication signal ports and a GPS/WiFi signal port, the two communication signal ports are respectively connected with the first radiator and the second radiator, so that the first radiator and the second radiator can be used as LTE antennas for communication when the communication signal ports are connected with data, and meanwhile, the first radiator can be used as an LTE upper antenna, the second radiator can be used as an LTE lower antenna, and the communication function of terminal equipment is ensured to be normal; in addition, the antenna assembly further comprises a GPS/WiFi signal port, the GPS/WiFi signal port is connected with the first radiator, and the first radiator is used as a GPS/WiFi antenna, so that the receiving and transmitting functions of the GPS/WiFi antenna are guaranteed to be normal; meanwhile, the first connecting point divides the first radiator into a full-frequency-band area and a middle-high-frequency-band area, the communication signal port is connected with the full-frequency-band area, the GPS/WiFi signal port is connected with the middle-high-frequency-band area, the isolation between the communication signal and the GPS/WiFi signal is good, the communication signal and the GPS/WiFi signal cannot be affected mutually, the second radiator is shared by LTE communication and near-field communication, at the moment, the second connecting point can be arranged at one end, far away from the second signal wire, of the second radiator, and the second signal wire is ensured to be accessed into a loop as much as possible.
In addition, it is conceivable that in order to enhance the GPS/WiFi signal, the number of GPS/WiFi signal ports may be set to two, the second GPS/WiFi signal port is connected to the middle-high band region of the second radiator, and the second radiator realizes separation of the full band region and the middle-high band region through the second connection point, so that the second radiator can serve as both the GPS/WiFi antenna and the LTE antenna.
In any of the above embodiments, preferably, the first decoupling device and the second decoupling device are inductors.
In the technical scheme, the first decoupling device and the second decoupling device are set to be inductors, and inductance values are adjusted to enable inductance to be increased as much as possible in a loop formed by the first signal wire, the first radiator, the grounding structure, the second radiator and the second signal, so that the effect of near field communication is improved.
In any of the above solutions, preferably, the grounding structure is disposed on a motherboard of the terminal; or the grounding structure is a metal plate and is arranged on the rear cover of the terminal equipment.
In this technical solution, the grounding structure may be disposed on the main board of the terminal, so that the grounding structure is connected with the ground of the main board, and at this time, the material of the rear cover of the terminal device may not be limited, for example, the rear cover of the terminal device may be made of a non-metal material such as plastic or ceramic, and the technical solution of the present invention may also be implemented.
In addition, the grounding structure can be set to be a metal plate and is set to be an integral structure with the rear cover of the terminal equipment, so that when the rear cover of the terminal equipment is a metal rear cover, the metal plate of the grounding structure can be used as the rear cover of the terminal equipment, and in the terminal equipment with the all-metal rear cover, the near-field communication antenna formed by the first radiator and the second radiator can effectively perform communication; and be provided with first decoupling zero and second decoupling zero between first radiator and second radiator, can effectually guarantee when setting up the ground structure as the metal sheet, can also form the area of windowing between metal sheet and first radiator and the second radiator, guarantee can produce sufficient inductance when near field communication.
According to a second aspect of the present invention, there is provided a terminal device having an antenna assembly provided by any one of the embodiments of the first aspect, and therefore, the terminal device provided by the embodiment of the present invention has all the advantages of the antenna assembly provided by any one of the embodiments of the first aspect, which are not listed herein.
In any of the foregoing solutions, preferably, the terminal device further includes a metal rear cover, and the grounding structure of the antenna assembly is disposed on the metal rear cover.
In this technical scheme, the terminal setting still includes the metal back lid to cover the ground structure setting of antenna module behind the metal, make antenna module's through the metal back lid realization ground connection, avoided setting up the technical scheme of ground structure alone again in antenna module, reduced antenna module's cost, and then promoted the market competition of product.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 shows a schematic diagram of an antenna assembly provided by an embodiment of the present invention;
Fig. 2 shows a further schematic view of an antenna assembly provided by an embodiment of the present invention;
Fig. 3 shows a further schematic diagram of an antenna assembly provided by an embodiment of the invention.
The correspondence between the reference numerals and the component names in fig. 1 to 3 is:
10 ground structure, 12 near field communication chip, 14 first radiator, 16 second radiator, 18 first signal line, 20 second signal line, 22 first decoupling device, 24 second decoupling device, 26 first connection point, 28 second connection point.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
An antenna assembly provided according to an embodiment of the present invention is described below with reference to fig. 1 to 3.
As shown in fig. 1 and 3, there is provided an antenna assembly for a terminal device according to an embodiment of the present invention, the antenna assembly including: a grounding structure 10; the near field communication chip 12, the signal line of the near field communication chip 12 includes a first signal line 18 and a second signal line 20 connected in series; a first radiator 14 connected to a first end of the ground structure 10, and a first signal line 18 connected to the first radiator 14; a second radiator 16 connected to the second end of the ground structure 10, and a second signal line 20 connected to the second radiator 16; wherein the first signal line 18, the first radiator 14, the ground structure 10, the second radiator 16 and the second signal line 20 form a loop.
The antenna assembly provided by the invention comprises a grounding structure 10, a near field communication chip 12, a first radiator 14 and a second radiator 16, wherein a signal wire of the near field communication chip 12 comprises a first signal wire 18 and a second signal wire 20 which are connected in series, a first end of the grounding structure 10 is connected with the first radiator 14, a second end of the grounding structure 10 is connected with the second radiator 16, and the first signal wire 18 and the second signal wire 20 are respectively connected at one ends of the first radiator 14 and the second radiator 16 far away from the grounding structure 10, so that the first signal wire 18, the first radiator 14, the grounding structure 10, the second radiator 16 and the second signal wire 20 form a loop together, the loop formed by encircling the first signal line 18, the first radiator 14, the grounding structure 10, the second radiator 16 and the second signal line 20 is used for transmitting near field communication signals, at this time, the parts of the first radiator 14 and the second radiator 16 which are connected into the loop are used as near field communication antennas, so that compared with the related art, the connection part of the near field communication antennas is obviously prolonged, the radiation range is wider, the reading and writing performance of the near field communication signals is effectively improved, the near field communication transmission effect of the terminal equipment is improved, and in addition, when the first radiator and the second radiator are used as the near field communication antennas, the connection length of the near field communication antennas is long enough, therefore, the antennas used in each frequency band on the first radiator and/or the second radiator can be isolated by arranging isolation points on the first radiator and the second radiator, and the antennas with all functions are ensured. It is conceivable that the near field communication chip 12 may be a near field communication chip 12 such as an NFC chip, a wireless charging chip, or the like.
Preferably, the first radiator 14 may be disposed above the rear cover of the terminal device, and the second radiator 16 may be disposed below the rear cover of the terminal device, so that when the near field communication signal forms a loop, the coverage area of the loop formed by surrounding the first radiator is as large as possible, thereby ensuring that the inductance formed in the loop is large. In addition, the first radiator 14 and the second radiator 16 are respectively arranged above and below the rear cover of the terminal equipment, so that the first radiator 14 and the second radiator 16 can be distributed above and below the terminal equipment when the access loop forms a near field communication antenna, the upper end and the lower end of the terminal equipment can both receive and transmit near field communication signals when the user uses the terminal equipment to carry out near field communication, the use occasion of the user is effectively enlarged, and the near field communication signals can be received and transmitted when the user takes the terminal equipment reversely.
In any of the foregoing solutions, preferably, the antenna assembly further includes: a first decoupling device 22 disposed on the first signal line 18; and a second decoupling device 24 disposed on the second signal line 20.
In this technical solution, the antenna assembly further includes a first decoupling device 22 and a second decoupling device 24, where the first decoupling device 22 is disposed on the first signal line 18, so that when the first signal line 18 is connected with the first radiator 14, it is ensured that the first decoupling device 22 can effectively eliminate parasitic coupling between circuits, and avoid interference of the near field communication signal on other frequency band functional antennas, and also avoid other functional antennas affecting performance of the near field communication signal; the second decoupling device 24 is disposed on the second signal line 20, so that when the second signal line 20 is connected with the second radiator 16, the second decoupling device 24 is ensured to effectively eliminate parasitic coupling between circuits, avoid interference of near field communication signals to functional antennas in other frequency bands, and avoid influence of other functional antennas on performance of near field communication signals.
In any of the foregoing solutions, preferably, the antenna assembly further includes: a first connection point 26, the first connection point 26 being disposed between the first radiator 14 and the ground structure 10, the first connection point 26 connecting the first radiator 14 with the ground structure 10; and a second connection point 28, the second connection point 28 being disposed between the second radiator 16 and the ground structure 10, the second connection point 28 connecting the second radiator 16 with the ground structure 10.
In this embodiment, the antenna assembly further includes a first connection point 26 and a second connection point 28, where the first connection point 26 is disposed between the first radiator 14 and the ground structure 10, and the first connection point 26 connects the first radiator 14 and the ground structure 10, and the second connection point 28 is disposed between the second radiator 16 and the ground structure 10, and the second connection point 28 connects the second radiator 16 and the ground structure 10, so that parasitic coupling between circuits can be effectively eliminated by the first connection point 26; and the first connection point 26 and the second connection point 28 are respectively disposed at two ends of the grounding structure 10, so as to ensure that the first connection point 26 and the second connection point 28 can be connected between the first signal line 18, the first radiator 14, the grounding structure 10, the second radiator 16 and the second signal component loop.
It is conceivable that, to implement connection and isolation between the first radiator 14 and the second radiator 16 and the grounding structure 10, the first connection point 26 and the second connection point 28 may be set to be a rib, a metal spring, a flexible circuit board, a decoupling circuit or a decoupling electric appliance, so that connection and isolation between the first radiator 14 and the second radiator 16 and the grounding structure 10 can be implemented; meanwhile, in order to facilitate the arrangement of the first connection point 26 and the second connection point 28 between the first radiator 14 and the second radiator 16 and the grounding structure 10, the first radiator 14, the first connection point 26 and the grounding structure 10 may be all arranged as a single structure, and the second radiator 16, the second connection point 28 and the grounding structure 10 may be all arranged as a single structure, so that on one hand, the arrangement steps of the first connection point 26 and the second connection point 28 may be simplified; on the other hand, the first connection point 26 and the second connection point 28 can be effectively ensured to effectively isolate the first radiator 14 and the second radiator 16. In any of the above embodiments, preferably, the first signal line 18 is a metal signal line; and/or the second signal line 20 is a metal signal line.
As shown in fig. 2, in this technical solution, the first signal line 18 and the second signal line 20 may be configured as metal signal lines, and when the distance between the first radiator 14 and the second radiator 16 is long, the first signal line 18 and the second signal line 20 need to be configured to have a long length to connect to the first radiator 14 and the second radiator 16, so, in order to ensure that the signal transmission effect is better in the connection process, the first signal line 18 and the second signal are newly configured as metal signal lines, so as to ensure effective transmission between the electrical signals.
In any of the above embodiments, it is preferable that the first signal line 18 is connected to an end of the first radiator 14, and the second signal line 20 is connected to an end of the second radiator 16.
In this solution, the first signal line 18 is configured to be connected to the end of the first radiator 14, and the second signal line 20 is configured to be connected to the end of the second radiator 16, so that when the first radiator 14 and the second radiator 16 are connected, the lengths of the first radiator 14 and the second radiator 16 connected to the loop are ensured to be as large as possible, so that as many of the first radiator 14 and the second radiator 16 can be used as near field communication antennas as possible, the radiator lengths of the near field communication antennas are increased as much as possible, and the communication effect of the near field communication antennas is improved.
In any of the foregoing solutions, preferably, the antenna assembly further includes: two communication signal ports connected to the first radiator 14 and the second radiator 16, respectively; a GPS/WiFi signal port connected to the first radiator 14; the first connection point 26 divides the first radiator 14 into a full-band region and a middle-high-band region, the communication signal port is connected with the full-band region, and the GPS/WiFi signal port is connected with the middle-high-band region.
In the technical scheme, the antenna assembly further comprises two communication signal ports and a GPS/WiFi signal port, the two communication signal ports are respectively connected with the first radiator 14 and the second radiator 16, so that when the communication signal ports are connected with data, the first radiator 14 and the second radiator 16 can be used as LTE antennas for communication, meanwhile, the first radiator 14 can be used as LTE upper antennas, and the second radiator 16 can be used as LTE lower antennas, and the normal communication function of terminal equipment is ensured; in addition, the antenna assembly further comprises a GPS/WiFi signal port, the GPS/WiFi signal port is connected with the first radiator 14, and the first radiator 14 is used as a GPS/WiFi antenna, so that the receiving and transmitting functions of the GPS/WiFi antenna are guaranteed to be normal; meanwhile, the first connection point 26 divides the first radiator 14 into a full-band area and a middle-high band area, the communication signal port is connected with the full-band area, and the GPS/WiFi signal port is connected with the middle-high band area, so that the isolation between the communication signal and the GPS/WiFi signal is good, the communication signal and the GPS/WiFi signal cannot be affected mutually, the second radiator 16 is only shared by LTE communication and near-field communication, and at this time, the second connection point 28 can be arranged at one end of the second radiator 16 far away from the second signal line 20, so that the second signal line 20 is ensured to be connected into the loop as much as possible.
Further, it is conceivable that in order to enhance the GPS/WiFi signal, the number of GPS/WiFi signal ports may be set to two, the second GPS/WiFi signal port is connected to the middle-high band region of the second radiator 16, and the second radiator 16 achieves separation of the full band region and the middle-high band region through the second connection point 28, so that the second radiator 16 can serve as both the GPS/WiFi antenna and the LTE antenna.
In any of the above embodiments, the first decoupling device 22 and the second decoupling device 24 are preferably inductors.
In this technical solution, the first decoupling device 22 and the second decoupling device 24 are set to be inductors, and by adjusting the inductance values, the inductance values can be increased as much as possible in the loop formed by the first signal line 18, the first radiator 14, the grounding structure 10, the second radiator 16 and the second signal, so as to further improve the near field communication effect.
In any of the above solutions, preferably, the grounding structure 10 is disposed on a motherboard of the terminal; or the grounding structure 10 is a metal plate, and the grounding structure 10 is arranged on the rear cover of the terminal device.
As shown in fig. 3, in this technical solution, the grounding structure 10 may be disposed on a main board of the terminal, so that the grounding structure 10 is connected to the ground of the main board, and in this case, the material of the rear cover of the terminal device may not be limited, for example, the rear cover of the terminal device may be made of a non-metal material such as plastic or ceramic, and the technical solution of the present invention may also be implemented.
In addition, the grounding structure 10 may be configured as a metal plate, and the grounding structure 10 may be configured as an integral structure with a rear cover of the terminal device, so that when the rear cover of the terminal device is a metal rear cover, the metal plate of the grounding structure 10 may be used as the rear cover of the terminal device, and in the terminal device with an all-metal rear cover, the near field communication antenna formed by the first radiator 14 and the second radiator 16 may effectively perform communication; and the first decoupling device 22 and the second decoupling device 24 are arranged between the first radiator 14 and the second radiator 16, so that when the grounding structure 10 is arranged as a metal plate, a window opening area can be formed between the metal plate and the first radiator 14 and the second radiator 16, and enough inductance can be generated during near field communication.
According to a second aspect of the present invention, there is provided a terminal device having an antenna assembly provided by any one of the embodiments of the first aspect, and therefore, the terminal device provided by the embodiment of the present invention has all the advantages of the antenna assembly provided by any one of the embodiments of the first aspect, which are not listed herein.
In any of the above solutions, preferably, the terminal device further comprises a metal back cover, and the grounding structure 10 of the antenna assembly is disposed on the metal back cover.
In this technical scheme, the terminal setting still includes the metal back lid to cover after the setting of antenna module's ground structure 10 at the metal, make antenna module's through the metal back lid realization ground connection, avoided setting up the technical scheme of ground structure 10 alone again in antenna module, reduced antenna module's cost, and then promoted the market competition of product.
In the description of the present specification, the azimuth or positional relationship indicated by the terms "upper", "lower", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An antenna assembly for a terminal device, the antenna assembly comprising:
a grounding structure;
the near field communication chip comprises a signal wire and a signal wire, wherein the signal wire of the near field communication chip comprises a first signal wire and a second signal wire which are connected in series;
the first radiator is connected with the first end of the grounding structure, and the first signal wire is connected with the first radiator;
the second radiator is connected with the second end of the grounding structure, and the second signal wire is connected with the second radiator;
The first signal line, the first radiator, the grounding structure, the second radiator and the second signal line form a loop;
When the near field communication chip works, the first signal wire, the first radiator, the grounding structure, the second radiator and the second signal wire enclose a loop formed to transmit near field communication signals.
2. The antenna assembly of claim 1, wherein the antenna assembly further comprises:
A first decoupling device disposed on the first signal line; and a second decoupling device disposed on the second signal line.
3. The antenna assembly of claim 2, wherein the antenna assembly further comprises:
The first connecting point is arranged between the first radiator and the grounding structure and connects the first radiator with the grounding structure; and
The second connecting point is arranged between the second radiator and the grounding structure and connects the second radiator with the grounding structure.
4. The antenna assembly of claim 1 wherein,
The first signal line is a metal signal line; and/or the second signal line is a metal signal line.
5. The antenna assembly of claim 1 wherein,
The first signal line is connected with an end of the first radiator, and the second signal line is connected with an end of the second radiator.
6. The antenna assembly of claim 3, further comprising:
The two communication signal ports are respectively connected with the first radiator and the second radiator;
the GPS/WiFi signal port is connected with the first radiator;
The first connecting point divides the first radiator into a full-frequency-band area and a medium-high-frequency-band area, the communication signal port is connected with the full-frequency-band area, and the GPS/WiFi signal port is connected with the medium-high-frequency-band area.
7. The antenna assembly of claim 2 wherein,
The first decoupling device and the second decoupling device are inductors.
8. The antenna assembly according to any one of claims 1 to 7,
The grounding structure is arranged on a main board of the terminal; or (b)
The grounding structure is a metal plate and is arranged on the rear cover of the terminal equipment.
9. A terminal device comprising an antenna assembly as claimed in any one of claims 1 to 8.
10. The terminal device of claim 9, further comprising a metallic back cover, the ground structure of the antenna assembly being disposed on the metallic back cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023806.2A CN108288754B (en) | 2017-10-27 | 2017-10-27 | Antenna assembly and terminal equipment |
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| CN201711023806.2A CN108288754B (en) | 2017-10-27 | 2017-10-27 | Antenna assembly and terminal equipment |
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| CN108288754A CN108288754A (en) | 2018-07-17 |
| CN108288754B true CN108288754B (en) | 2024-06-21 |
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| CN201711023806.2A Active CN108288754B (en) | 2017-10-27 | 2017-10-27 | Antenna assembly and terminal equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112448146B (en) * | 2019-08-30 | 2022-03-01 | Oppo广东移动通信有限公司 | Antenna device, electronic equipment and antenna switching method |
| CN114243272B (en) * | 2021-12-15 | 2024-04-26 | 深圳市锐尔觅移动通信有限公司 | Antenna device, circuit board assembly and electronic equipment |
| CN114243271A (en) * | 2021-12-15 | 2022-03-25 | 深圳市锐尔觅移动通信有限公司 | Antenna device, circuit board assembly and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204760528U (en) * | 2012-11-19 | 2015-11-11 | 苹果公司 | Antenna structure and electronic equipment |
| CN205509000U (en) * | 2016-03-03 | 2016-08-24 | 珠海市魅族科技有限公司 | Antenna device |
| CN207426138U (en) * | 2017-10-27 | 2018-05-29 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870597A (en) * | 2016-04-22 | 2016-08-17 | 惠州硕贝德无线科技股份有限公司 | Dual-antenna scheme sharing metal back cover |
| CN106229677B (en) * | 2016-08-26 | 2019-11-29 | 青岛海信移动通信技术股份有限公司 | A kind of NFC antenna and mobile terminal of mobile terminal |
| CN106410400B (en) * | 2016-10-18 | 2023-09-26 | 上海德门电子科技有限公司 | Communication equipment with metal shell and NFC structure thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204760528U (en) * | 2012-11-19 | 2015-11-11 | 苹果公司 | Antenna structure and electronic equipment |
| CN205509000U (en) * | 2016-03-03 | 2016-08-24 | 珠海市魅族科技有限公司 | Antenna device |
| CN207426138U (en) * | 2017-10-27 | 2018-05-29 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
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