WO2014185687A1 - Nfc 안테나 모듈 및 이를 구비하는 휴대 단말 - Google Patents
Nfc 안테나 모듈 및 이를 구비하는 휴대 단말 Download PDFInfo
- Publication number
- WO2014185687A1 WO2014185687A1 PCT/KR2014/004268 KR2014004268W WO2014185687A1 WO 2014185687 A1 WO2014185687 A1 WO 2014185687A1 KR 2014004268 W KR2014004268 W KR 2014004268W WO 2014185687 A1 WO2014185687 A1 WO 2014185687A1
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- Prior art keywords
- pattern
- sheet
- radiation
- antenna module
- nfc antenna
- Prior art date
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- 230000005855 radiation Effects 0.000 claims abstract description 128
- 238000000034 method Methods 0.000 claims description 11
- 238000009987 spinning Methods 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000006930 Pseudomyxoma Peritonei Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
- H01Q1/243—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 with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/43—Antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
Definitions
- the present invention relates to an NFC antenna module, and more particularly, to an NFC antenna module for communicating with an NFC antenna module embedded in another mobile terminal and a mobile terminal having the same (NFC ANTENNA MODULE AND PORTABLE TERMINAL DEVICE) HAVING THE SAME).
- the portable terminal is provided with a plurality of antennas for wireless communication, such as wireless internet and Bluetooth.
- the portable terminal is equipped with a portable terminal antenna module (ie, NFC antenna module) used in the short-range communication method.
- NFC antenna module used is a non-contact short-range wireless communication module using a frequency band of about 13.56 GHz as one of electronic tags (RFID) and transmits data between terminals at a close distance of about 10 cm.
- RFID electronic tags
- Portable terminals such as a tablet and a smart phone
- functions such as information exchange, payment, ticket reservation, and search between terminals using short-range communication (ie, NFC). Accordingly, the demand for NFC antenna modules used in the near field communication method is increasing.
- a differential antenna type NFC antenna module is mainly used.
- the NFC antenna module of the differential antenna type a signal is received from an external terminal through a radiator pattern, and signal transmission is performed only at a signal line connected to one end of the radiator pattern. Accordingly, in the conventional NFC antenna module, since the reception strength of the received signal is weak, the reception performance in the reader mode is reduced, and the reader mode recognition distance is reduced.
- the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to provide an NFC antenna module and a portable terminal having the same to maximize the antenna performance by mounting the radiating sheet to overlap a part of the antenna sheet. .
- the electromagnetic shielding sheet An antenna sheet having a radiation pattern formed along the outer periphery of the center portion, and laminated on the electromagnetic shielding sheet; And a radiation sheet stacked on the antenna sheet to form an overlapping region with the radiation pattern, and having a recess formed to expose the center portion.
- the radiation sheet forms a region overlapping with the left pattern and the right pattern and the lower pattern of the radiation pattern.
- the radiation sheet includes: a first protrusion formed on the left side of the recess and forming an overlapping region with the left pattern of the radiation pattern; A second protrusion formed on the right side of the recess and forming an overlapping region with the right pattern of the radiation pattern; And a base portion formed under the concave portion and forming an overlapping region with the lower pattern of the radiation pattern.
- one or more slots exposing a part of the lower pattern may be formed in an area overlapping the lower pattern.
- the radiation sheet includes: a first radiation sheet including a portion of the first projection portion and the base portion, the first radiation sheet forming an overlapping region with the left pattern and the lower pattern of the radiation pattern; And a second radiation sheet including another portion of the second protrusion and the base, and forming a region overlapping with the right pattern and the lower pattern of the radiation pattern.
- the first radiation sheet and the second radiation sheet may be spaced apart from the region overlapping the lower pattern, and the lower pattern of the radiation pattern may be exposed to the outside through the spaced apart region.
- the radiation sheet includes: a first protrusion formed on the left side of the recess and forming an overlapping region with the left pattern of the radiation pattern; A second protrusion formed on the right side of the recess and forming an overlapping region with the right pattern of the radiation pattern; And a base portion formed below the concave portion and formed to expose the lower pattern of the radiation pattern.
- the radiation sheet may include a first radiation sheet including a part of the first protrusion part and the base part and forming an overlapping region with the left pattern of the radiation pattern; And a second radiation sheet including another portion of the second projection portion and the base portion, and forming a region overlapping with the right pattern of the radiation pattern, wherein the first radiation sheet and the second radiation sheet may be spaced apart from each other.
- the electromagnetic shielding sheet may include a ferrite sheet.
- the NFC antenna module overlaps the radiation sheet of a metal material on top of the radiation pattern, so that radiation of the radiation pattern is made through the radiation sheet, thereby maximizing antenna performance.
- the NFC antenna module has an effect of reducing the unit cost by reducing the area of the radiation sheet while maximizing the antenna performance by forming a slot in a portion of the radiation sheet overlapping the radiation pattern.
- FIG. 1 is a view for explaining the NFC antenna module according to an embodiment of the present invention.
- FIG. 2 is a view for explaining the antenna sheet of FIG.
- 3 to 7 are views for explaining the spinning sheet of FIG.
- FIG. 1 is a view for explaining the NFC antenna module according to an embodiment of the present invention
- Figure 2 is a view for explaining the antenna sheet of Figure 1
- Figures 3 to 7 are for explaining the radiation sheet of Figure 1 Drawing.
- the NFC antenna module includes an electromagnetic shielding sheet 200, an antenna sheet 300, and a radiation sheet 400.
- the NFC antenna module is illustrated as being mounted in the battery pack 100 of the portable terminal, but may be mounted in a rear housing (not shown).
- the electromagnetic shielding sheet 200 is composed of a sheet of electromagnetic wave blocking material such as a ferrite sheet.
- the electromagnetic shielding sheet 200 is mounted on one surface of the battery pack 100 for supplying driving power of the portable terminal.
- the electromagnetic shielding sheet 200 may be mounted in a rear housing (not shown) of the portable terminal.
- the electromagnetic shielding sheet 200 is formed to cover the entirety of one surface of the battery pack 100 or only a portion of one surface of the battery pack 100. Accordingly, the area of the electromagnetic shielding sheet 200 is formed to be equal to or less than the area of one surface of the battery pack 100.
- the antenna sheet 300 is stacked on one surface of the electromagnetic shielding sheet 200. That is, the antenna sheet 300 is stacked on the other surface of the antenna sheet 300 facing one surface of the electromagnetic shielding sheet 200 in contact with the battery pack 100.
- the antenna sheet 300 is formed of a flexible printed circuit board (FPCB), and a radiation pattern 320 resonating in an NFC frequency band is formed on one surface of the flexible printed circuit board.
- the radiation pattern 320 is formed in a loop shape in which a wire is wound a plurality of times along the outer periphery of the central portion 310, and both ends thereof are provided with a feed end of the portable terminal through terminals (not shown) formed in the antenna sheet 300 (not shown). (Not shown).
- the radiation pattern 320 is divided into a left pattern 322, a right pattern 324, an upper pattern 326, and a lower pattern 328 in order to easily describe an embodiment of the present invention.
- the antenna sheet 300 is disposed in a form biased to one side of the electromagnetic shielding sheet 200. That is, the antenna sheet 300 is disposed in a form biased toward one side of one side of the upper, lower, left, and right sides of the electromagnetic shielding sheet 200. In this case, an area of the antenna sheet 300 is formed to be less than or equal to the area of the electromagnetic shielding sheet 200.
- the radiation sheet 400 is formed of a metal material and laminated on one surface of the antenna sheet 300. That is, the radiation sheet 400 is laminated on one surface of the antenna sheet 300 which is in contact with the electromagnetic shielding sheet 200. In this case, the radiation sheet 400 partially overlaps the radiation pattern 320 formed on the antenna sheet 300 to form an overlapping region.
- the radiation sheet 400 may operate as the auxiliary radiator by contacting the radiation pattern 320 in the overlapped region, or may be spaced apart by a predetermined interval to operate as the auxiliary radiator through a coupling effect.
- the radiating sheet 400 has a recess 410 formed in a rectangular shape at one side thereof to expose the central portion 310 of the antenna sheet 300.
- the radiation sheet 400 has a first protrusion 420 formed on the left side of the recess 310, a second protrusion 430 formed on the right side of the recess 310, and a lower side of the recess 310.
- Base portion 440 is formed.
- the radiation sheet 400 is formed in a U shape, the base portion 440 forms a region overlapping with the lower pattern 328 of the radiation pattern 320, the first protrusion 420 is a radiation pattern 320 An overlap region is formed with the left pattern 322, and the second protrusion 430 forms an overlap region with the right pattern 324 of the radiation pattern 320. Accordingly, the radiation sheet 400 is operated as an auxiliary radiator of the radiation pattern 320 to increase the radiation area, it is possible to maximize the antenna performance due to the increase in the radiation area.
- the radiation sheet 400 may be formed with one or more slots 450 in the base portion 440. That is, the base portion 440 has a plurality of slots 450 formed in an area overlapping the lower pattern 328 of the radiation pattern 320. Accordingly, a portion of the lower pattern 328 is exposed in the plurality of slots 450.
- the base portion 440 has a plurality of slots 450 formed in an area overlapping the lower pattern 328 of the radiation pattern 320. Accordingly, a portion of the lower pattern 328 is exposed in the plurality of slots 450.
- the radiation sheet 400 may form an overlapping region only on both side patterns of the radiation pattern 320 (that is, the left pattern 322 and the right pattern 324). That is, as shown in Figure 5, the radiation sheet 400 is formed in a U-shape formed in the recessed portion 410 in a rectangular shape on one side, the first projection 420 and the second projection 430 is radiated An overlap region is formed with the left pattern 322 and the right pattern 324 of the pattern 320, and the base portion 440 is formed to be spaced apart from the lower pattern 328. Accordingly, the central portion 310 and the lower pattern 328 of the antenna sheet 300 are exposed through the recess 410. Through this, while maintaining the antenna characteristics equivalent to the NFC antenna module to which the radiation sheet 400 shown in Figure 4, it is possible to reduce the unit cost by reducing the area of the radiation sheet 400.
- the radiation sheet 400 is composed of the first radiation sheet 460 and the second radiation sheet 470, both sides of the radiation pattern 320 (that is, the left pattern ( An overlapping region may be formed with a portion of the 322, the right pattern 324, and the lower pattern 328. That is, the radiation sheet 400 includes a first radiation sheet 460 formed in a ' ⁇ ' shape, including a portion of the first protrusion 420 and the base 440, the second protrusion 430 and the base portion ( Including the other part of the 440 is composed of a second radiation sheet 470 formed in a ' ⁇ ' shape.
- the first radiating sheet 460 forms an overlapping region with a left side pattern 322 of the radiation pattern 320 and a portion of the left side of the lower pattern 328.
- the second radiation sheet 470 is stacked to be spaced apart from the first radiation sheet 460 by a predetermined interval, and forms an overlapping region with the right pattern 324 of the radiation pattern 320 and the right portion of the lower pattern 328.
- a separation region 480 is formed between the first radiation sheet 460 and the second radiation sheet 470, and a part of the lower pattern 328 of the radiation pattern 320 is exposed through the separation region 480. do.
- the radiation sheet 400 operates as an auxiliary radiator of the radiation pattern 320 to increase the radiation area, thereby maximizing antenna performance due to the increase in the radiation area.
- the first radiation sheet 460 includes a portion of the first protrusion 420 and the base portion 440, and overlaps a portion of the left pattern 322 of the radiation pattern 320. Form an area.
- the second radiation sheet 470 includes another portion of the second protrusion 430 and the base 440, and forms an overlapping region with a portion of the right pattern 324.
- the base portion 440 included in the first radiation sheet 460 and the second radiation sheet 470 is formed to be spaced apart from the lower pattern 328, and the base portion included in the first radiation sheet 460 ( A spaced area 480 is formed between a portion of the 440 and a portion of the base portion 440 included in the second radiation sheet 470.
- the NFC antenna module overlaps the radiation sheet of a metal material on top of the radiation pattern, so that radiation of the radiation pattern is made through the radiation sheet, thereby maximizing antenna performance.
- the NFC antenna module has an effect of reducing the unit cost by reducing the area of the radiation sheet while maximizing the antenna performance by forming a slot in a portion of the radiation sheet overlapping the radiation pattern.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Telephone Set Structure (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
Description
Claims (11)
- 전자파 차폐 시트;중앙부의 외주를 따라 방사 패턴이 형성되고, 상기 전자파 차폐 시트에 적층되는 안테나 시트; 및상기 안테나 시트에 적층되어 상기 방사 패턴과 중첩 영역을 형성하고, 상기 중앙부를 노출시키는 오목부가 형성되는 방사 시트를 포함하는 것을 특징으로 하는 NFC 안테나 모듈.
- 제1항에 있어서,상기 방사 시트는,상기 방사 패턴의 좌측 패턴 및 우측 패턴 및 하부 패턴과 중첩 영역을 형성하는 것을 특징으로 하는 NFC 안테나 모듈.
- 제1항에 있어서,상기 방사 시트는,상기 오목부의 좌측에 형성되고, 상기 방사 패턴의 좌측 패턴과 중첩 영역을 형성하는 제1돌출부;상기 오목부의 우측에 형성되고, 상기 방사 패턴의 우측 패턴과 중첩 영역을 형성하는 제2돌출부; 및상기 오목부의 하측에 형성되고, 상기 방사 패턴의 하부 패턴과 중첩 영역을 형성하는 베이스부를 포함하는 것을 특징으로 하는 NFC 안테나 모듈.
- 제3항에 있어서,상기 베이스부는,상기 하부 패턴과 중첩되는 영역에 상기 하부 패턴의 일부를 노출시키는 하나 이상의 슬롯이 형성되는 것을 특징으로 하는 NFC 안테나 모듈.
- 제3항에 있어서,상기 방사 시트는,상기 제1돌출부 및 상기 베이스부의 일부를 포함하고, 상기 방사 패턴의 좌측 패턴 및 하부 패턴과 중첩 영역을 형성하는 제1방사 시트; 및상기 제2돌출부 및 상기 베이스부의 다른 일부를 포함하고, 상기 방사 패턴의 우측 패턴 및 하부 패턴과 중첩 영역을 형성하는 제2방사 시트를 포함하는 것을 특징으로 하는 NFC 안테나 모듈.
- 제5항에 있어서,상기 제1방사 시트 및 제2방사 시트는 하부 패턴과 중첩되는 영역에서 이격되고, 이격된 영역을 통해 상기 방사 패턴의 하부 패턴이 외부로 노출되는 것을 특징으로 하는 NFC 안테나 모듈.
- 제1항에 있어서,상기 방사 시트는,상기 오목부의 좌측에 형성되고, 상기 방사 패턴의 좌측 패턴과 중첩 영역을 형성하는 제1돌출부;상기 오목부의 우측에 형성되고, 상기 방사 패턴의 우측 패턴과 중첩 영역을 형성하는 제2돌출부; 및상기 오목부의 하측에 형성되고, 상기 방사 패턴의 하부 패턴이 노출되도록 형성되는 베이스부를 포함하는 것을 특징으로 하는 NFC 안테나 모듈.
- 제7항에 있어서,상기 방사 시트는,상기 제1돌출부 및 상기 베이스부의 일부를 포함하고, 상기 방사 패턴의 좌측 패턴과 중첩 영역을 형성하는 제1방사 시트; 및상기 제2돌출부 및 상기 베이스부의 다른 일부를 포함하고, 상기 방사 패턴의 우측 패턴과 중첩 영역을 형성하는 제2방사 시트를 포함하고,상기 제1방사 시트 및 상기 제2방사 시트는 이격되는 것을 특징으로 하는 NFC 안테나 모듈.
- 제1항에 있어서,상기 전자파 차폐 시트는 페라이트 시트를 포함하는 것을 특징으로 하는 NFC 안테나 모듈.
- 제1항 내지 제9항 중 어느 한 항에 따른 NFC 안테나 모듈을 구비하는 것을 특징으로 하는 휴대 단말.
- 제10항에 있어서,상기 NFC 안테나 모듈은 휴대 단말의 배터리 팩 또는 후면 하우징에 탑재된 것을 특징으로 하는 휴대 단말.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN201480027386.3A CN105229853B (zh) | 2013-05-13 | 2014-05-13 | Nfc天线模块及由其组成的携带终端 |
US14/891,188 US9819085B2 (en) | 2013-05-13 | 2014-05-13 | NFC antenna module and portable terminal comprising same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0053677 | 2013-05-13 | ||
KR20130053677 | 2013-05-13 |
Publications (1)
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WO2014185687A1 true WO2014185687A1 (ko) | 2014-11-20 |
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PCT/KR2014/004268 WO2014185687A1 (ko) | 2013-05-13 | 2014-05-13 | Nfc 안테나 모듈 및 이를 구비하는 휴대 단말 |
Country Status (4)
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US (1) | US9819085B2 (ko) |
KR (1) | KR101559527B1 (ko) |
CN (1) | CN105229853B (ko) |
WO (1) | WO2014185687A1 (ko) |
Families Citing this family (8)
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JPWO2016031078A1 (ja) * | 2014-08-26 | 2017-04-27 | イスイックス・ワールド株式会社 | 近傍界導波器 |
KR101619322B1 (ko) * | 2015-01-05 | 2016-05-10 | 주식회사 아모텍 | 메탈 케이스를 이용한 nfc 안테나 모듈 |
US20170059402A1 (en) * | 2015-08-28 | 2017-03-02 | Canon Kabushiki Kaisha | Device and image sensor |
KR20170032498A (ko) * | 2015-09-13 | 2017-03-23 | 주식회사 아이엠텍 | 휴대 단말기 |
KR102523393B1 (ko) * | 2016-04-04 | 2023-04-20 | 주식회사 뉴파워 프라즈마 | Nfc 안테나 모듈 및 nfc 안테나 모듈을 탑재한 휴대 단말기 |
WO2018117431A1 (ko) * | 2016-12-20 | 2018-06-28 | 주식회사 아모텍 | 안테나 모듈 |
CN107565216A (zh) | 2017-08-29 | 2018-01-09 | 广州三星通信技术研究有限公司 | 电子设备的外壳及电子设备 |
KR102306408B1 (ko) * | 2021-03-26 | 2021-09-30 | 주식회사 이엠따블유 | 안테나 모듈 및 이를 포함하는 무선 통신 디바이스 |
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KR20140134237A (ko) | 2014-11-21 |
CN105229853B (zh) | 2018-02-16 |
KR101559527B1 (ko) | 2015-10-14 |
CN105229853A (zh) | 2016-01-06 |
US20160134019A1 (en) | 2016-05-12 |
US9819085B2 (en) | 2017-11-14 |
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