CN107425289A - A kind of antenna and terminal device - Google Patents
A kind of antenna and terminal device Download PDFInfo
- Publication number
- CN107425289A CN107425289A CN201710597322.2A CN201710597322A CN107425289A CN 107425289 A CN107425289 A CN 107425289A CN 201710597322 A CN201710597322 A CN 201710597322A CN 107425289 A CN107425289 A CN 107425289A
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- China
- Prior art keywords
- antenna branch
- branch
- primary antenna
- primary
- antenna
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
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Abstract
The embodiment of the present invention provides a kind of antenna and terminal device, is related to antenna technical field, it would be preferable to support multiple frequency ranges, and the flexible Application of multiple frequency ranges is realized, the antenna and terminal device include：Radio-frequency signal source；Primary antenna branch, primary antenna branch connect the radio-frequency signal source；Passive antenna branch；Switch unit, switch unit are connected between primary antenna branch and passive antenna branch, for primary antenna branch to be connected into/disconnection with passive antenna branch.When switch unit is used to disconnect primary antenna branch and passive antenna branch, primary antenna branch can support a frequency range；In the case where primary antenna branch is connected by switch unit with passive antenna branch, equivalent to the length for changing primary antenna branch, so that primary antenna branch can support a new frequency range；So as to which the antenna and terminal device can support multiple frequency ranges.Further, primary antenna branch is adjusted by switch unit and/disconnection is connected with passive antenna branch, the flexible Application of multiple frequency ranges can also be realized.
Description
Technical field
The present invention relates to antenna technical field, more particularly to a kind of antenna and terminal device.
Background technology
Application of the antenna in terminal device (such as household electrical appliances, mobile phone, wearable product) is more and more wider.With the communication technology
The continuous development of (such as LTE technologies), communication bandwidth increases sharply, it is necessary to which the antenna in terminal device can support more frequencies
Section, challenge is brought to Antenna Design in terminal device.Due to the limitation of the size of current terminal device so that the design of antenna
Space is very small, and the environment around antenna also becomes increasingly complex, therefore antenna is supported multiple frequencies in limited space
Design difficulty of the prior art during section.
Antenna is set to support more multiband by increasing the parasitic branch of coupling in antennas at present, but due to Antenna Design
The limitation in space, by increasing capacitance it is possible to increase coupling parasitism branch number it is limited, and this method can only increase fixed frequency range, so existing
The frequency range that can be supported in technology is extremely limited, and can not flexible Application antenna support multiple frequency ranges.
The content of the invention
Embodiments of the invention provide a kind of antenna and terminal device, it would be preferable to support multiple frequency ranges, and realize multiple frequencies
The flexible Application of section.
First aspect, there is provided a kind of antenna, the antenna include：
Radio-frequency signal source；
Primary antenna branch, primary antenna branch connection radio-frequency signal source；
Passive antenna branch；
Switch unit, switch unit are connected between primary antenna branch and passive antenna branch, for by primary antenna branch
/ disconnection is connected with passive antenna branch.
Optionally, in the case where switch unit disconnects primary antenna branch and passive antenna branch, passive antenna branch
Ground connection.
Optionally, primary antenna branch includes the first primary antenna branch and the second primary antenna branch；
Switch unit is used to connect one in the first primary antenna branch and the second primary antenna branch and passive antenna branch
Connect/disconnect.
Optionally, primary antenna branch includes the first primary antenna branch and the second primary antenna branch；Switch unit is used to incite somebody to action
In the case that first primary antenna branch connects with passive antenna branch, the second primary antenna branch and passive antenna branch are disconnected；
In the case where the second primary antenna branch is connected with passive antenna branch, the first primary antenna branch and passive antenna branch are broken
Open.
Optionally, the first primary antenna branch is different with the length of the second primary antenna branch.
Optionally, the first primary antenna branch is identical with the length of the second primary antenna branch, the first primary antenna branch and second
Primary antenna branch is respectively used to receive radio frequency and sends radio frequency；
Passive antenna branch is between the first primary antenna branch and the second primary antenna branch.
Optionally, antenna also includes match circuit；Primary antenna branch connects radio-frequency signal source by match circuit.
Optionally, antenna also includes match circuit；Primary antenna branch connects passive antenna branch by match circuit.
Optionally, match circuit is π type match circuits.
Optionally, switch unit is that hilted broadsword throws electronic switch more.
Antenna provided in an embodiment of the present invention, including：Radio-frequency signal source；Primary antenna branch, primary antenna branch connect this and penetrated
Frequency source signal；Passive antenna branch；Switch unit, switch unit are connected between primary antenna branch and passive antenna branch, are used
In primary antenna branch is connected into/disconnection with passive antenna branch.It is used in switch unit by primary antenna branch and passive antenna point
When branch disconnects, primary antenna branch can support a frequency range；Primary antenna branch is connected with passive antenna branch in switch unit
In the case of, equivalent to the length for changing primary antenna branch, so that primary antenna branch can support a new frequency range；
So as to which the antenna can support multiple frequency ranges.Further, primary antenna branch and passive antenna branch are adjusted by switch unit
Connection/disconnection, the flexible Application of multiple frequency ranges can also be realized.
Second aspect provides a kind of terminal device, and the terminal device includes above-mentioned first aspect or its optional implementation
Antenna.
Description for the technique effect of second aspect, it specifically may refer to retouching for the above-mentioned technique effect to first aspect
State, here is omitted.
Brief description of the drawings
Fig. 1 is a kind of structural representation one of antenna provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation two of antenna provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation three of antenna provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation four of antenna provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation five of antenna provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation six of antenna provided in an embodiment of the present invention；
Fig. 7 is a kind of structural representation seven of antenna provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation eight of antenna provided in an embodiment of the present invention；
Fig. 9 is a kind of structural representation nine of antenna provided in an embodiment of the present invention；
Figure 10 is a kind of structural representation ten of antenna provided in an embodiment of the present invention；
Figure 11 is a kind of structural representation 11 of antenna provided in an embodiment of the present invention.
Embodiment
Antenna provided in an embodiment of the present invention and terminal device are described in detail below in conjunction with the accompanying drawings.
In embodiments of the present invention, " exemplary " or " such as " etc. word make example, illustration or explanation for expression.This
Be described as in inventive embodiments " exemplary " or " such as " any embodiment or design be not necessarily to be construed as comparing
Other embodiments or design more preferably or more advantage.Specifically, use " exemplary " or " such as " etc. word purport
Related notion is being presented in a concrete fashion.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, expression may have three kinds of passes
System, for example, A and/or B, can be represented：Individualism A, while A and B be present, these three situations of individualism B.Symbol herein
Number "/" represent affiliated partner be or relation, such as A/B represents A or B.
Term " first " and " second " in the embodiment of the present invention etc. are to be used to distinguish different objects, rather than for describing
Particular order.For example, the first primary antenna branch and the second primary antenna branch are to be used to distinguish different primary antenna branches, rather than use
In the particular order for describing different primary antenna branches.
The embodiment of the present invention as shown in Figure 1 provides a kind of antenna, and the antenna includes：
Radio-frequency signal source 11；
Primary antenna branch 12, primary antenna branch 12 connect radio-frequency signal source 11；
Passive antenna branch 13；
Switch unit 14, switch unit 14 are connected between primary antenna branch 12 and passive antenna branch 13, for that will lead
Antenna branch 12 is connected/disconnected with passive antenna branch 13.
Exemplary, if the band support F1 of primary antenna branch 12 in Fig. 1, then primary antenna is divided in switch unit 14
In the case that branch 12 disconnects with passive antenna branch 13, antenna band support F1；In switch unit 14 by primary antenna branch
In the case that 12 are connected with passive antenna branch 13, equivalent to the length for adding primary antenna branch, the antenna made supports frequency
Section F2 (frequency of the F2 is less than F1).
Antenna provided in an embodiment of the present invention, including：Radio-frequency signal source；Primary antenna branch, primary antenna branch connect this and penetrated
Frequency source signal；Passive antenna branch；Switch unit, switch unit are connected between primary antenna branch and passive antenna branch, are used
In primary antenna branch is connected into/disconnection with passive antenna branch.It is used in switch unit by primary antenna branch and passive antenna point
When branch disconnects, primary antenna branch can support a frequency range；Primary antenna branch is connected with passive antenna branch in switch unit
In the case of, equivalent to the length for changing primary antenna branch, so that primary antenna branch can support a new frequency range；
So as to which the antenna can support multiple frequency ranges.Further, primary antenna branch and passive antenna branch are adjusted by switch unit
Connection/disconnection, the flexible Application of multiple frequency ranges can also be realized.
Optionally, the switch unit 14 can be that hilted broadsword throws electronic switch more in the embodiment of the present invention, or can be it
He can realize the device of single pole multiple throw function.
Optionally, with reference to Fig. 1, as shown in figures 2 and 3, in switch unit 14 by primary antenna branch 12 and passive antenna branch
In the case that 13 disconnect, passive antenna branch 13 is grounded.
Exemplary, in Fig. 2 or Fig. 3, the switch unit 14 is single-pole double throw electronic switch, when the switch connection
During a points, the switch unit 14 is used to primary antenna branch being connected with passive antenna branch, and when the switch connection b points, this is cut
Unit 14 is changed to be used to disconnect primary antenna branch and passive antenna branch.
In Fig. 2, in the switch connection b points, due to b point suspension joints, and parasitic branch is grounded, and now parasitic branch can be with
One frequency range F3 is supported by coupling, that is to say, that now antenna band support F1 and frequency range F3.
In Fig. 3, in the switch connection b points, because b points are grounded, therefore parasitic branch is grounded, now parasitic branch
A frequency range F3 can be supported by coupling, that is to say, that now antenna band support F1 and frequency range F3.
In this way, compared to the antenna shown in Fig. 1.Antenna shown in Fig. 2 and Fig. 3 can support more multiband, and pass through
Switch unit 14 adjusts primary antenna branch 12 and is connected/disconnects with passive antenna branch 13, can also realize multiple frequency ranges
Flexible Application.Optionally, with reference to Fig. 2, as shown in Fig. 4 or Fig. 5, or Fig. 3 is combined as is seen in fig. 6 or fig. 7, primary antenna branch 12
Including the first primary antenna branch 121 and the second primary antenna branch 122；Switch unit 14 is used for the He of the first primary antenna branch 121
One in second primary antenna branch 122 is connected/disconnects with passive antenna branch 13.
In above-mentioned Fig. 4 into Fig. 7, switch unit 14 is single-pole double throw electronic switch, should when the switch connection a points
Switch unit 14 is used to the second primary antenna branch 122 being connected with passive antenna branch 13, should when the switch connection b points
Switch unit 14 is used to disconnect the second primary antenna branch 122 and passive antenna branch 13.
Exemplary, in above-mentioned Fig. 5 and Fig. 7, it is assumed that the first primary antenna branch supports a frequency range F4, the second primary antenna
Branch supports a frequency range F5, when the switch connection a points, the switch unit 14 be used for by the second primary antenna branch 122 with
Passive antenna branch 13 connects, equivalent to the length for adding the second primary antenna branch 122, so that the antenna can be supported
One new frequency range F6, namely now antenna band support F4 and F6；When the switch connection b points, the switch unit 14
For the second primary antenna branch 122 and passive antenna branch 13 to be disconnected, and passive antenna branch 13 is grounded, now parasitic branch
A frequency range F3, the i.e. antenna now band support F3, F4 and F5 can be supported by coupling.
It is again exemplary, in Fig. 4 and Fig. 6, it is assumed that the first primary antenna branch supports a frequency range F4, the second primary antenna branch
A frequency range F5 is supported, when switch connects A points, the switch unit 14 is used for the second primary antenna branch 122 and passive antenna
Branch 13 connects, equivalent to the 3rd primary antenna branch (Ji Yuan passive antennas branch 13) is added, so that antenna can be more
A frequency range F7 is supported, now antenna supports F4, F5, F7.When the switch connection b points, the switch unit 14 is used for the
Two primary antenna branches 122 and passive antenna branch 13 disconnect, and passive antenna branch 13 is grounded, and now parasitic branch can pass through
A frequency range F8, the i.e. antenna now band support F4, F5 and F8 are supported in coupling.
In the embodiment of the present invention, passive antenna branch 13 can be connected or disconnect with the first primary antenna branch 121；Or
Passive antenna branch 13 can be connected/disconnect with the second primary antenna branch 122.Above-mentioned Fig. 4 is with the second main day into Fig. 7
What line branch 122 illustrated exemplified by being connected with passive antenna branch 13.
In the embodiment of the present invention, antenna of the antenna compared to Fig. 2 and Fig. 3 shown in above-mentioned Fig. 4 to Fig. 7 can be supported more
Frequency range, and primary antenna branch 12 is adjusted by switch unit 14 and is connected/disconnection with one in passive antenna branch 13, can be also
The flexible Application of multiple frequency ranges can be realized.
Optionally, with reference to Fig. 2, as shown in figure 8, or with reference to Fig. 3, as shown in figure 9, primary antenna branch 12 includes the first master
The primary antenna branch 122 of antenna branch 121 and second；Switch unit 14 is used for by the first primary antenna branch 121 and passive antenna
In the case that branch 13 connects, the second primary antenna branch 122 and passive antenna branch 13 are disconnected；By the second primary antenna branch
122 and passive antenna branch 13 connect in the case of, the first primary antenna branch 121 and passive antenna branch 13 are disconnected.
In above-mentioned Fig. 8 and Fig. 9, switch unit 14 is SP3T electronic switch, should when the switch connection a points
Switch unit 14 is used to the first primary antenna branch 121 being connected with passive antenna branch 13, should when the switch connection b points
Switch unit 14 is used to the second primary antenna branch 122 being connected with passive antenna branch 13, should when the switch connection c points
Switch unit 14 is used to disconnect the first primary antenna branch and the second primary antenna branch with passive antenna branch 13.
Exemplary, in figs. 8 and 9, it is assumed that the first primary antenna branch supports a frequency range F4, the second primary antenna branch
One frequency range F5 of support, when the switch connection a points, the switch unit 14 is used for the first primary antenna branch 121 and parasitism
Antenna branch 13 connects, equivalent to the length for adding the first primary antenna branch 121, so that the antenna can support one
New frequency range F7 (frequency of the F7 is less than F4), namely now antenna band support F5 and F7；When the switch connection b points
When, the switch unit 14 is used to the second primary antenna branch 122 being connected with passive antenna branch 13, equivalent to adding the second master
The length of antenna branch 122, so that the antenna can support a new frequency range F6 (frequency of the F6 is less than F5), namely
Now antenna band support F4 and F6；When the switch connection c points, the switch unit 14 is used for the first primary antenna branch
121 and second primary antenna branch 122 disconnected with passive antenna branch 13, and passive antenna branch 13 is grounded, now parasitic point
Branch can support a frequency range F3, the i.e. antenna now band support F3, F4 and F5 by coupling.
In the embodiment of the present invention, antenna of the antenna compared to Fig. 2 and Fig. 3 shown in above-mentioned Fig. 8 and Fig. 9 can be supported more
Frequency range, and primary antenna branch 12 is adjusted by switch unit 14 and is connected/disconnection with one in passive antenna branch 13, can be also
The flexible Application of multiple frequency ranges can be realized.
Optionally, in the embodiment of the present invention, the length of the first primary antenna branch and the second primary antenna branch can be with identical
Can be different.
Optionally, it is identical with the length of the second primary antenna branch in the first primary antenna branch in the embodiment of the present invention, and the
One primary antenna branch and the second primary antenna branch are respectively used in the case of receiving radio frequency and sending radio frequency, shown in Fig. 4 to Fig. 7
Passive antenna branch 13 should be between the first primary antenna branch 121 and the second primary antenna branch 122.Exemplary, with reference to
Fig. 6 and Fig. 7, when passive antenna branch 13 should be between the first primary antenna branch 121 and the second primary antenna branch 122, Fig. 6
Figure 10 and Figure 11 can be respectively deformed into Fig. 7.
It is identical with the length of the second primary antenna branch in the first primary antenna branch, and the first primary antenna branch and the second main day
Line branch is respectively used in the case of receiving radio frequency and sending radio frequency, due to the first primary antenna branch and the second primary antenna branch away from
It is poor from compared with the nearly isolation for causing the first primary antenna branch and the second primary antenna branch, passive antenna branch can now be set
Put between the first primary antenna branch and the second primary antenna branch, and by setting the length of the passive antenna branch, such as set
It is same to put length and the identical length of the first primary antenna branch and the second primary antenna branch of the passive antenna branch, so as to carry
High first primary antenna branch and the isolation of the second primary antenna branch.
So the antenna shown in Figure 10 and Figure 11, can not only support multiple frequency ranges, the flexible Application of multiple frequency ranges is realized,
The isolation of the first primary antenna branch 121 and the second primary antenna branch 122 can also be improved.
Optionally, the antenna in the embodiment of the present invention can also include match circuit.Primary antenna branch can pass through matching
Circuit connects radio-frequency signal source.Primary antenna branch can connect passive antenna branch by match circuit.
Optionally, the match circuit in the embodiment of the present invention can be π type match circuits.
Optionally, switch unit is that hilted broadsword throws electronic switch more, or switch unit can be that other can realize hilted broadsword
The device of multithrow switch function..
The embodiment of the present invention also provides a kind of terminal device, and it is any into Figure 11 that the terminal device can include above-mentioned Fig. 1
Kind antenna.Exemplary, the terminal device can be household electrical appliances, mobile phone or wearable product etc..
Terminal device provided in an embodiment of the present invention includes：Radio-frequency signal source；Primary antenna branch, the connection of primary antenna branch should
Radio-frequency signal source；Passive antenna branch；Switch unit, switch unit are connected between primary antenna branch and passive antenna branch,
For primary antenna branch to be connected into/disconnection with passive antenna branch.It is used in switch unit by primary antenna branch and passive antenna
When branch disconnects, primary antenna branch can support a frequency range；Primary antenna branch and passive antenna branch are connected in switch unit
In the case of connecing, equivalent to the length for changing primary antenna branch, so that primary antenna branch can support a new frequency
Section；So as to which the terminal device can support multiple frequency ranges.Further, primary antenna branch and parasitic day are adjusted by switch unit
Line branch connection/disconnection, the flexible Application of multiple frequency ranges can also be realized.
More than, it is only embodiment of the invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be covered
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
- A kind of 1. antenna, it is characterised in that including：Radio-frequency signal source；Primary antenna branch, the primary antenna branch connect the radio-frequency signal source；Passive antenna branch；Switch unit, the switch unit are connected between the primary antenna branch and the passive antenna branch, for by institute State primary antenna branch and be connected/disconnection with the passive antenna branch.
- 2. antenna according to claim 1, it is characterised in that the switch unit by the primary antenna branch with it is described In the case that passive antenna branch disconnects, the passive antenna branch ground connection.
- 3. antenna according to claim 1, it is characterised in that the primary antenna branch includes the first primary antenna branch and the Two primary antenna branches；The switch unit is used to post one in the first primary antenna branch and the second primary antenna branch with described Raw antenna branch connection/disconnection.
- 4. antenna according to claim 1, it is characterised in that the primary antenna branch includes the first primary antenna branch and the Two primary antenna branches；The switch unit is used in the feelings for connecting the first primary antenna branch with the passive antenna branch Under condition, the second primary antenna branch and the passive antenna branch are disconnected；By the second primary antenna branch and described In the case that passive antenna branch connects, the first primary antenna branch and the passive antenna branch are disconnected.
- 5. the antenna according to claim 3 or 4, it is characterised in that the first primary antenna branch and the second main day The length of line branch is different.
- 6. the antenna according to claim 3 or 4, it is characterised in that the first primary antenna branch and the second main day The length of line branch is identical, and the first primary antenna branch and the second primary antenna branch are respectively used to receive radio frequency and transmission Radio frequency；The passive antenna branch is between the first primary antenna branch and the second primary antenna branch.
- 7. antenna according to claim 1, it is characterised in that the antenna also includes match circuit；The primary antenna branch connects the radio-frequency signal source by the match circuit；And/or；The primary antenna branch connects the passive antenna branch by the match circuit.
- 8. antenna according to claim 7, it is characterised in that the match circuit is π type match circuits.
- 9. antenna according to claim 1, it is characterised in that the switch unit is that hilted broadsword throws electronic switch more.
- 10. a kind of terminal device, it is characterised in that the terminal device includes the antenna described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597322.2A CN107425289A (en) | 2017-07-20 | 2017-07-20 | A kind of antenna and terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597322.2A CN107425289A (en) | 2017-07-20 | 2017-07-20 | A kind of antenna and terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107425289A true CN107425289A (en) | 2017-12-01 |
Family
ID=60430739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597322.2A Pending CN107425289A (en) | 2017-07-20 | 2017-07-20 | A kind of antenna and terminal device |
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| CN (1) | CN107425289A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109921178A (en) * | 2019-02-19 | 2019-06-21 | 深圳市和盈互联科技有限公司 | Mobile terminal antenna device |
| CN109962339A (en) * | 2019-03-19 | 2019-07-02 | 惠州Tcl移动通信有限公司 | Antenna assembly, electronic equipment and antenna tuning method |
| CN110289881A (en) * | 2019-06-27 | 2019-09-27 | 上海创功通讯技术有限公司 | Wireless communication device, RF IC and electric terminal |
| CN110620289A (en) * | 2018-06-19 | 2019-12-27 | 海信集团有限公司 | Radio frequency device and terminal equipment |
| US11108151B1 (en) | 2020-03-02 | 2021-08-31 | Enlighted, Inc. | Device and method for managing communications |
| CN113764889A (en) * | 2021-08-30 | 2021-12-07 | 青岛海信移动通信技术股份有限公司 | Antenna device and electronic equipment |
| CN114665256A (en) * | 2020-12-22 | 2022-06-24 | 深圳市万普拉斯科技有限公司 | Antenna structure, mobile terminal and frequency band switching method |
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