CN107946738A - Antenna system and mobile terminal - Google Patents
Antenna system and mobile terminal Download PDFInfo
- Publication number
- CN107946738A CN107946738A CN201710954982.1A CN201710954982A CN107946738A CN 107946738 A CN107946738 A CN 107946738A CN 201710954982 A CN201710954982 A CN 201710954982A CN 107946738 A CN107946738 A CN 107946738A
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- Prior art keywords
- antenna
- cavity
- housing
- millimeter wave
- wavelength
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003989 dielectric material Substances 0.000 claims abstract description 17
- 208000002925 dental caries Diseases 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
- H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to communication technique field, more particularly to a kind of antenna system and mobile terminal.Antenna system includes housing and at least one set of aerial array, and each aerial array includes at least two antenna elements;The surface of the housing is equipped with cavity, is filled with dielectric material in each cavity, to form the antenna element, the opening direction of each cavity is parallel, to form millimeter wave array antenna.Antenna system provided by the present invention, each antenna element is directly set on housing, i.e. housing is by setting multiple cavitys to form millimeter wave array antenna, a larger opening is opened up more in the prior art and places whole millimeter wave array antenna, the aperture area of housing can be obviously reduced, and be spaced between each cavity, still there is coupling part between i.e. each cavity, thus, it is also possible to increase the intensity of whole housing, so as to improve the reliability of whole antenna system.
Description
Technical field
The present invention relates to communication technique field, more particularly to a kind of antenna system and mobile terminal.
Background technology
As world standard entities work defines next generation wireless network, the vision of 5G is forcing researcher to change
Their form of thinking.The spectrum efficiency of 4G networks e insufficient to provide faster message transmission rate, low latency and high power capacity,
It is therefore desirable to have it is capable of providing the wireless network of ubiquitous moment mobile broadband data.And data rate and usable spectrum
Directly related, according to Shannon's theorems, capacity is the function of bandwidth (i.e. frequency spectrum) and interchannel noise, and the frequency spectrum less than 6GHz has divided
With totally, and the frequency spectrum of more than 6GHz, the frequency of particularly millimeter wave have become the key frequency band of 5G communications.
In the prior art, mobile terminal such as mobile phone, its metal edge frame and metal rear shell are all kinds of digital productions all the time
The fashionable element of product prevalence, as put on armor, great aesthetic feeling, shows hale and hearty, noble makings, firmly gets the mobile phone of metal material
Many consumers like.But millimeter wave antenna frequency is high, wavelength is short, it is easy to is blocked by metal, therefore, it is necessary in metal
Larger opening is set in rear shell or metal edge frame, whole millimeter wave antenna array is then positioned over opening, this big face
Long-pending opening, causes metal rear shell and the weakened of metal edge frame, influences the reliability of whole mobile phone.
The content of the invention
The present invention provides a kind of antenna system and mobile terminal, can solve the above problems.
The first aspect of the present invention provides a kind of antenna system, including:
At least one set of aerial array, each aerial array include at least two antenna elements;
Housing, the surface of the housing are equipped with multiple cavitys, dielectric material are filled with each cavity, with described in formation
Antenna element, the opening direction of each cavity is parallel, to form millimeter wave array antenna.
Preferably, each antenna element of the same aerial array lines up multirow, and each row is equipped with multiple antennas
Unit.
Preferably, the distance with two antenna elements adjacent in a line is more than or equal to the millimeter wave array
The half of the wavelength of antenna, and twice of the wavelength less than or equal to the millimeter wave array antenna.
Preferably, the cavity is recessed inwardly by the surface of the housing and is formed.
Preferably, the opening direction of the cavity is parallel with the normal direction on the surface where it.
Preferably, the opening of the cavity is strip gab, and the length of the strip gab is the millimeter wave array day
The a quarter of line wavelength is to half;
And/or
The opening of the cavity is strip gab, and the width of the strip gab is the millimeter wave array antenna wavelength
1/10th to ten/20th;
And/or
The depth capacity of the cavity for the wavelength of the millimeter wave array antenna a quarter to half.
Preferably, the housing includes metal rear and is connected to the metallic sides on the periphery of the metal rear;It is described
Metal rear and the metallic sides are both provided with the aerial array.
Preferably, the dielectric constant of the dielectric material is 2~35.
Preferably, the dielectric material includes at least one of plastics, glass, ceramics.
The second aspect of the present invention provides a kind of mobile terminal, including as above any one of them antenna system.
Technical solution provided by the invention can reach following beneficial effect:
Antenna system provided by the present invention, directly sets each antenna element on housing, i.e. housing is multiple by setting
Cavity forms millimeter wave array antenna, opens up a larger opening on housing more in the prior art and places whole millimeter wave battle array
Array antenna, can be obviously reduced the aperture area of housing, and be spaced between each cavity, i.e., still have company between each cavity
Socket part point, thus, it is also possible to increase the intensity of whole housing, so as to improve the reliability of whole antenna system.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Invention.
Brief description of the drawings
Fig. 1 is a kind of structure diagram at a visual angle of specific embodiment of antenna system provided by the present invention;
Fig. 2 is a kind of structure diagram at another visual angle of specific embodiment of antenna system provided by the present invention;
Fig. 3 is a kind of front view of specific embodiment of antenna system provided by the present invention;
Fig. 4 is a kind of left view of specific embodiment of antenna system provided by the present invention;
Fig. 5 is a kind of right view of specific embodiment of antenna system provided by the present invention;
Fig. 6 is a kind of top view of specific embodiment of antenna system provided by the present invention;
Fig. 7 is a kind of bottom view of specific embodiment of antenna system provided by the present invention;
Fig. 8 is a kind of sectional view of specific embodiment of antenna system provided by the present invention;
Fig. 9 is the partial enlarged view of Fig. 8;
Figure 10 is the return loss plot of an aerial array in antenna system provided by the present invention.
Reference numeral:
10- housings;
11- metallic sides;
12- metal rears;
13- Mikes hole;
14-USB holes;
20- aerial arrays;
21- antenna elements;
30- dielectric materials.
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and for explaining the principle of the present invention together with specification.
Embodiment
The present invention is described in further detail below by specific embodiment and with reference to attached drawing.
An embodiment of the present invention provides a kind of antenna system, and as shown in figs 1-9, antenna system includes housing 10 and at least one
Group aerial array 20, each aerial array 20 include at least two antenna elements 21.The surface of housing 10 is equipped with multiple cavitys, each recessed
Intracavitary is filled with dielectric material 30, to form antenna element 20, as Figure 8-9, dielectric material 30 is filled with each cavity,
Such a cavity and the dielectric material 30 of filling in it are collectively forming an antenna element 21, and each aerial array 20 includes
Two, three or more cavitys, the opening direction of each cavity is parallel, so that these cavitys and the dielectric material of filling in it
Material 30 forms millimeter wave array antenna together, that is to say, that mutiple antennas unit 21 is independently arranged, and is collectively forming an antenna array
Row 20, the aerial array form a millimeter wave array antenna.
Above-mentioned antenna system, directly sets independent each antenna element 21 on the housing 10, i.e. housing 10 is more by setting
A cavity radiated electromagnetic wave outward, so as to form millimeter wave array antenna, more directly opens up one
A larger opening places whole millimeter wave array antenna, and the aperture area of housing 10 can be obviously reduced, and between each cavity
It is spaced, i.e., still has coupling part between each cavity, thus, it is also possible to increase the intensity of whole housing 10, so as to
Enough improve the reliability of whole antenna system.
Usually, housing 10 is an integral molding structure, i.e. cavity and 10 one-pass molding of housing, cavity by housing 10 surface
It is recessed inwardly to be formed, to increase the intensity of housing 10.It is of course also possible to set through hole on the housing 10, groove is individually processed, it is recessed
Groove is connected to the through hole of housing 10 by modes such as welding, to form cavity.
In a kind of preferable embodiment, housing 10 is metal shell, especially when housing 10 is an integral molding structure, so that
Cavity forms radial chamber.As shown in figures 1 to 6, housing 10 includes metal rear 12 and is connected to the metal on the periphery of metal rear 12
Sidepiece 11, that is to say, that metallic sides 11 are set along the periphery of metal rear 12.Wherein, metal rear 12 and metallic sides 11 are equal
Aerial array is may be provided with, so that antenna system can cover all directions, improves the performance of antenna system.
Above-mentioned cavity can be cuboid groove, semi-spherical grooves etc., and cavity is provided only with an opening, and other positions are sealed
Close.In order to meet the wavelength requirement of millimeter wave array antenna, the opening of cavity is strip gab.
Further, the opening direction of cavity is parallel with the normal direction on the surface of the housing 10 where it, especially in housing 10
When being an integral molding structure, since housing 10 is generally molded, using this structure, when can be easy to shaping
Draft, facilitate the shaping of cavity.Certainly, the opening direction of cavity can also be other directions, as with the housing 10 where it
The direction on surface be in an inclination angle.
Specifically, each aerial array 20 includes mutiple antennas unit 21, i.e., including two, three or more antenna lists
Member 21, in same aerial array, each antenna element 21 can be in line.
Alternatively, in same aerial array 20, each antenna element 21 lines up multirow, and each row is equipped with mutiple antennas unit
21, so that the space layout of aerial array 20 is more reasonable, and millimeter wave array can be increased by way of rows and columns
The performance of antenna.
In a kind of embodiment of the present invention, in same antenna array 20, the antenna element 21 of any two row along perpendicular to
Direction where row is staggeredly located, and as seen in figures 3-6, each aerial array 20 includes eight antenna elements 21, eight antenna elements
Two rows are lined up, often row is provided with four antenna elements 21, direction of the edge where going, the wherein antenna element 21 of a line
Projection is not exclusively overlapped with the projection of the antenna element of another row, that is to say, that the wherein throwing of an antenna element 21 of a line
Shadow is at least partially disposed between the projection of two antenna elements 21 of another row, using the set-up mode of this dislocation, Neng Goujin
One step increases the intensity of housing 10, and adds the aesthetics of housing 10.Certainly, each antenna element in same antenna array 20
21 can also be in that determinant arranges, i.e. the projection in direction of the edge where going, the antenna element 21 of two row of arbitrary neighborhood
Projection is completely superposed.
Further, as shown in fig. 6, in same antenna array 20, two antenna elements adjacent with a line away from
From the half that D is more than or equal to millimeter wave array antenna wavelength, and less than or equal to the ripple of millimeter wave array antenna
Long twice, such as distance D are the half of millimeter array antenna wavelength, 2/3rds, or equal to millimeter wave array antenna
One times, twice of wavelength, can specifically be determined according to the wavelength of required millimeter wave array antenna.
When the opening of cavity is strip gab, the length L of strip gab be millimeter wave array antenna wavelength four/
One to half, i.e. length L is more than or equal to a quarter of millimeter wave array antenna wavelength, and is less than or equal to millimeter wave array
The half of antenna wavelength, as length L values for millimeter wave array antenna wavelength a quarter, 1/3rd, two/
First-class, the value of specific length L are influenced to change by the dielectric constant for the dielectric material 30 filled in cavity.
The width W of strip gab is 1st/10th to ten/20th of millimeter wave array antenna wavelength, the i.e. value of width W
More than or equal to 1st/20th of millimeter wave array antenna wavelength, and less than or equal to millimeter wave array antenna wavelength ten/
One, it is clear that width W is much smaller than a wavelength of millimeter wave array antenna wavelength, as width W is millimeter wave array antenna wavelength
1/20th, 1/15th, ten/first-class, the value of specific width W is normal by the dielectric of institute's filled dielectric material in cavity
Several influences can change.
The depth capacity of cavity is deep to half, the i.e. maximum of cavity for a quarter of millimeter wave array antenna wavelength
Degree more than or equal to millimeter wave array antenna wavelength a quarter, and less than or equal to millimeter wave array antenna wavelength two/
One, such as depth capacity for millimeter wave array antenna wavelength a quarter, 1/3rd, half, specific depth capacity
Value is influenced to change by the dielectric constant for the dielectric material filled in cavity.
It should be noted that above-mentioned distance D, length L, width W and depth capacity can carry out in respective scope
Matching, to reach preferably antenna performance.
In the various embodiments described above, the dielectric constant of dielectric material 30 is 2~35, such as 2,3,10,30,35, specifically, is situated between
Electric material 30 is non-conductive medium material, can include at least one of plastics, glass, ceramics.
It is to be appreciated that antenna system further includes circuit board (not shown), radio frequency source is provided with circuit board, it is each recessed
Distributing point is equipped with chamber, each distributing point is connected with radio frequency source, so that the outside radiated electromagnetic wave of cavity.Feedback place is arranged at recessed
At the aperture position of chamber, to realize the Optimum Matching of antenna system.
Above-mentioned antenna system, the setting position of each aerial array 20 is more flexible, and from the appearance, the opening of cavity compared with
Small, the aesthetics influence of structural strength and housing 10 on housing 10 is smaller.It is 4.2mm in the length L of cavity, width W is
0.6mm, depth capacity 2.7mm, and select dielectric constant be 3 dielectric material when, the return loss plot of an aerial array
As shown in Figure 10, as seen from the figure, the working frequency range of the millimeter wave array antenna of the antenna system is 28GHZ, individual antenna unit
21 gain is 5.6dB, and the radiation directivity of antenna system is good.
In addition, the present invention also provides a kind of mobile terminal, such as mobile phone, PAD, including the as above day described in any embodiment
Linear system is united.
As shown in fig. 7, Mike hole 13 and USB holes 14 are additionally provided with the metallic sides 11 of housing 10, in order to housing 10
Interior component and extraneous connection.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. antenna system, it is characterised in that including:At least one set of aerial array, each aerial array include at least two antenna elements;Housing, the surface of the housing are equipped with multiple cavitys, dielectric material are filled with each cavity, to form the antenna Unit, the opening direction of each cavity is parallel, to form millimeter wave array antenna.
- 2. antenna system according to claim 1, it is characterised in that each antenna element of the same aerial array Multirow is lined up, each row is equipped with multiple antenna elements.
- 3. antenna system according to claim 2, it is characterised in that two antenna elements adjacent with a line Distance is more than or equal to the half of the millimeter wave array antenna wavelength, and is less than or equal to the millimeter wave array Twice of antenna wavelength.
- 4. according to claim 1-3 any one of them antenna systems, it is characterised in that the cavity by the housing surface It is recessed inwardly to be formed.
- 5. according to claim 1-3 any one of them antenna systems, it is characterised in that the opening direction of the cavity and its institute Surface normal direction it is parallel.
- 6. according to claim 1-3 any one of them antenna systems, it is characterised in that the opening of the cavity is opened for bar shaped Mouthful, the length of the strip gab for the millimeter wave array antenna wavelength a quarter to half;And/orThe opening of the cavity is strip gab, and the width of the strip gab is the 20 of the millimeter wave array antenna wavelength 1/1 mono- to ten;And/orThe depth capacity of the cavity for the wavelength of the millimeter wave array antenna a quarter to half.
- 7. according to claim 1-3 any one of them antenna systems, it is characterised in that the housing includes metal rear and company It is connected to the metallic sides on the periphery of the metal rear;The metal rear and the metallic sides are both provided with the antenna array Row.
- 8. according to claim 1-3 any one of them antenna systems, it is characterised in that the dielectric constant of the dielectric material is 2~35.
- 9. according to claim 1-3 any one of them antenna systems, it is characterised in that the dielectric material includes plastics, glass At least one of glass, ceramics.
- 10. a kind of mobile terminal, it is characterised in that including such as claim 1-9 any one of them antenna system.
Priority Applications (1)
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CN201710954982.1A CN107946738B (en) | 2017-10-13 | 2017-10-13 | Antenna system and mobile terminal |
Applications Claiming Priority (1)
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CN201710954982.1A CN107946738B (en) | 2017-10-13 | 2017-10-13 | Antenna system and mobile terminal |
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CN107946738A true CN107946738A (en) | 2018-04-20 |
CN107946738B CN107946738B (en) | 2020-11-17 |
Family
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108717998A (en) * | 2018-05-04 | 2018-10-30 | 宇龙计算机通信科技(深圳)有限公司 | A kind of the millimeter wave antenna system and mobile terminal of mobile terminal |
CN108808214A (en) * | 2018-08-12 | 2018-11-13 | 瑞声科技(南京)有限公司 | antenna system and mobile terminal |
CN108832250A (en) * | 2018-06-22 | 2018-11-16 | 瑞声科技(南京)有限公司 | Antenna module and mobile terminal |
CN110098466A (en) * | 2019-04-26 | 2019-08-06 | 维沃移动通信有限公司 | A kind of terminal device |
CN110098465A (en) * | 2019-04-26 | 2019-08-06 | 维沃移动通信有限公司 | A kind of wireless terminal device of highly integrated Antenna Design |
WO2020020013A1 (en) * | 2018-07-24 | 2020-01-30 | 维沃移动通信有限公司 | Millimetre wave wireless terminal device |
WO2020020056A1 (en) * | 2018-07-24 | 2020-01-30 | 维沃移动通信有限公司 | Terminal device |
CN111725604A (en) * | 2019-03-20 | 2020-09-29 | Oppo广东移动通信有限公司 | Millimeter wave antenna device and electronic apparatus |
CN113113764A (en) * | 2020-01-13 | 2021-07-13 | 北京小米移动软件有限公司 | Antenna and mobile terminal |
WO2022193287A1 (en) * | 2021-03-19 | 2022-09-22 | Huawei Technologies Co., Ltd. | Display panel transparent to electromagnetic signals |
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CN105379007A (en) * | 2013-08-16 | 2016-03-02 | 英特尔公司 | Millimeter wave antenna structures with air-gap layer or cavity |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108717998A (en) * | 2018-05-04 | 2018-10-30 | 宇龙计算机通信科技(深圳)有限公司 | A kind of the millimeter wave antenna system and mobile terminal of mobile terminal |
CN108832250A (en) * | 2018-06-22 | 2018-11-16 | 瑞声科技(南京)有限公司 | Antenna module and mobile terminal |
WO2020020013A1 (en) * | 2018-07-24 | 2020-01-30 | 维沃移动通信有限公司 | Millimetre wave wireless terminal device |
WO2020020056A1 (en) * | 2018-07-24 | 2020-01-30 | 维沃移动通信有限公司 | Terminal device |
CN108808214A (en) * | 2018-08-12 | 2018-11-13 | 瑞声科技(南京)有限公司 | antenna system and mobile terminal |
CN108808214B (en) * | 2018-08-12 | 2020-07-07 | 瑞声科技(南京)有限公司 | Antenna system and mobile terminal |
CN111725604B (en) * | 2019-03-20 | 2021-09-14 | Oppo广东移动通信有限公司 | Millimeter wave antenna device and electronic apparatus |
US11929558B2 (en) | 2019-03-20 | 2024-03-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Millimeter wave antenna apparatus and electronic device |
CN111725604A (en) * | 2019-03-20 | 2020-09-29 | Oppo广东移动通信有限公司 | Millimeter wave antenna device and electronic apparatus |
CN110098465A (en) * | 2019-04-26 | 2019-08-06 | 维沃移动通信有限公司 | A kind of wireless terminal device of highly integrated Antenna Design |
WO2020216211A1 (en) * | 2019-04-26 | 2020-10-29 | 维沃移动通信有限公司 | Terminal device |
CN110098466B (en) * | 2019-04-26 | 2021-11-16 | 维沃移动通信有限公司 | Terminal equipment |
CN110098466A (en) * | 2019-04-26 | 2019-08-06 | 维沃移动通信有限公司 | A kind of terminal device |
CN113113764A (en) * | 2020-01-13 | 2021-07-13 | 北京小米移动软件有限公司 | Antenna and mobile terminal |
CN113113764B (en) * | 2020-01-13 | 2023-07-25 | 北京小米移动软件有限公司 | Antenna and mobile terminal |
US11949158B2 (en) | 2020-01-13 | 2024-04-02 | Beijing Xiaomi Mobile Software Co., Ltd. | Antenna and mobile terminal |
WO2022193287A1 (en) * | 2021-03-19 | 2022-09-22 | Huawei Technologies Co., Ltd. | Display panel transparent to electromagnetic signals |
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