EP2028715A1 - Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät - Google Patents
Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät Download PDFInfo
- Publication number
- EP2028715A1 EP2028715A1 EP07114886A EP07114886A EP2028715A1 EP 2028715 A1 EP2028715 A1 EP 2028715A1 EP 07114886 A EP07114886 A EP 07114886A EP 07114886 A EP07114886 A EP 07114886A EP 2028715 A1 EP2028715 A1 EP 2028715A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conducting strip
- folded
- dimensional substrate
- antenna
- substrate
- Prior art date
- 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.)
- Ceased
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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
- 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
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- 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
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
Definitions
- the present invention relates generally to an antenna connectable to a mobile station, or other radio device, capable of transducing signal energy at multiple frequency bands. More particularly, the present invention relates to antenna apparatus, and an associated methodology, of compact dimensions, capable of transducing signal energy at the frequencies at which the radio device is operable, e.g., at the 800/900/1800/1900/2200 MHz frequency bands.
- a folded, conducting strip is disposed, or otherwise positioned, upon a three-dimensional substrate.
- the folded, conducting strip is positioned upon two or more surfaces of the three-dimensional substrate and is of a configuration to be resonant at two or more frequency bands. Formation of the conducting strip upon multiple substrate surfaces permits its length to be increased without requiring the amount of surface space that would otherwise be required to provide a conducting strip of corresponding length in a two-dimensional implementation.
- An antenna of compact dimension and good antenna characteristics is provided. The compact dimension further permits multiple antennas to be used at the mobile station in an antenna array configuration.
- Radio communication systems are exemplary radio communication systems.
- the infrastructures of cellular, and other, communication systems have been widely deployed and regularly used by many.
- Successive generations of various types of communication systems have been developed and their operating parameters and protocols are promulgated in operating standards, promulgated by standard-setting bodies.
- Mobile stations are typically utilized by users when communicating in a cellular, or other, mobile radio communication system.
- a mobile station is sometimes referred to as being a multi-mode mobile station when the mobile station is capable of operation by way of more than one type of mobile radio communication system.
- communications are carried out by way of a selected one of the communication systems. Selection is made, e.g., based upon a service subscription preference, user preference, or other criteria.
- the mobile station communicates by way of the available system.
- a multi-mode mobile station must include circuitry permitting its operation in each of the communication systems with which the mobile station is to communicate. Most simply, a mobile station is provided with multiple, independent circuitries of a number and type corresponding to the number and type of systems with which the mobile station is to operate. Sharing of common circuit portions is sometimes utilized to provide cost and size advantages.
- antenna transducer elements When the different systems with which the mobile station is to operate utilize different frequencies.
- the antenna transducer elements must be operable at the different frequencies of operation of the different communication systems.
- the size required of an antenna transducer element is typically related to the frequencies of the signal energy that is to be transduced by the transducer element. Different antenna sizes are therefore generally required for the different systems with which the mobile station is to operate.
- the challenges become yet greater as the mobile stations must increasingly be packaged in smaller housings.
- Significant attention has been directed towards the development of an antenna transducer, operable over multiple frequency bands that is also of small dimension to permit its positioning within the housing of a compact-sized mobile station.
- a PIFA Planar Inverted-F Antenna
- a PIFA is of relatively compact size, exhibits a low profile, and provides for at least dual-band radiation.
- a PIFA generally exhibits a narrow bandwidth.
- conventional efforts to enhance the bandwidth of a PIFA generally utilize a combination of the PIFA with a parasitic element.
- addition of a parasitic element increases the size of the resultant antenna structure.
- Figure 1 illustrates a functional block diagram of a radio communication system in which an embodiment of the present invention is operable.
- Figure 2 illustrates a planar view of part of the antenna of an embodiment of the present invention.
- Figure 3 illustrates a perspective view of the antenna of an embodiment of the present invention of which a part thereof is shown in Figure 2 .
- Figure 4 illustrates another perspective view, taken from a different angle of the antenna shown in Figure 3 .
- Figure 5 illustrates a perspective view of an antenna array of an embodiment of the present invention.
- Figure 6 illustrates a graphical representation of the return loss of an exemplary antenna of an embodiment of the present invention.
- FIGS 7 and 8 illustrate radiation patterns of the antenna of an embodiment of the present invention.
- Figure 9 illustrates a method flow diagram representative of the method of operation of an embodiment of the present invention.
- the present invention accordingly, advantageously provides antenna apparatus, and an associated methodology, for a mobile station, or other radio device, capable of transducing signal energy at multiple frequency bands.
- an antenna of compact dimensions capable of transducing signal energy at the frequencies at which a radio device to which the antenna is connectable.
- the characteristics of the antenna permit its operation at selected frequency bands over a wide range of frequencies, e.g., the 800/900/1800/1900/2200 MHz frequencies.
- a folded, conducting strip is disposed, or otherwise positioned, upon a three-dimensional substrate, such as a cubular-shaped substrate.
- the substrate, and the conducting strip disposed thereon, is mountable, or otherwise connectable, to radio circuitry embodied at a printed circuit board, or the like.
- the folded, conducting strip is positioned upon two or more surfaces of the three-dimensional substrate.
- the strip is of a configuration to be resonant at two or more frequency bands. Due to the multiface nature of the substrate, the folded, conducting strip is configurable to be of a length to permit its resonance at multiple frequencies of operation, i.e., is of large bandwidths of resonance, while also being of compact dimensions.
- the antenna is used in a multiple-antenna arrangement in a mobile station That is to say, multiple three-dimensional substrates are provided, and folded, conducting strips are disposed upon the substrates.
- the substrates are positioned at spaced-apart locations of the printed circuit board, or the like, and connected to radio circuitry of the radio device.
- the multiple antenna configuration defines an antenna array, providing the radio device with the capability of MIMO (multiple input, multiple output) operation.
- the three-dimensional substrate is of a generally cubical configuration, defining six primary face surfaces.
- the folded, conducting strip disposed upon the substrate is disposed upon multiple face surfaces thereof. That is to say, a first folded portion of the conducting strip is formed upon a first face surface of the substrate, a second folded portion of the conducting strip is formed upon a second face surface of the substrate, etc.
- the portions of the conducting strip are integrally formed, or otherwise connected together electrically, collectively to be of a cumulative length, permitting resonance of the conducting strip at desire frequencies.
- Configuration of the conducting strip to be of an appropriate length and of other appropriate shape-related configuration provides for the formation of an antenna of the desired characteristics.
- the antenna characteristics for instance, provide for two wideband frequency bands of resonance that encompass the 800/900/1800/1900/2200 MHz frequency ranges.
- a set of matching strips is further disposed, or otherwise positioned, upon the three-dimensional substrate.
- the set of matching strips include, for instance, a pair of matching strips that are disposed upon different face surfaces of the substrate and extend in generally opposing directions beyond the folded conducting strip portions, also disposed upon the corresponding face surfaces of the substrate.
- the matching strips are of configurations and are positioned to improve the return loss of the resultant antenna structure.
- multiple, i.e., two or more, antenna structures are positioned at spaced locations upon a circuit board, e.g., a circuit board upon which radio circuitry of a radio transceiver is positioned.
- the respective antennas are connected at feeding points thereof to the radio circuitry, e.g., by way of lead lines disposed upon the circuit board and leading to the radio circuitry.
- the spaced-apart nature of the respective structures provides spatial diversity, permitting MIMO operation of the radio device that facilitates communication of data communicated during operation of the radio device.
- the dimensional requirements of the antenna structure are reduced relative to conventional implementations. And, due to the reduced dimensional requirements, multiple antennas are positionable at a mobile station, permitting MIMO operation. Improved radio performance is provided by providing a structure of compact dimensions and good antenna characteristics.
- an antenna apparatus, and associated method for transducing signal energy at a radio communication station.
- a first, three-dimensional substrate is provided.
- a first folded conducting strip is positioned upon the three-dimensional substrate.
- the first folded conducting strip has a first folded portion that is positioned at a first side of the first three-dimensional substrate.
- the strip includes at least a second folded portion positioned at least at a second side of the three-dimensional substrate.
- the first folded conducting strip is of a shape to be resonant at a first frequency band and at a second frequency band.
- a first set of matching strips is formed integral with the first folded conducting strip. The matching strips are also positioned upon the first three-dimensional substrate.
- a radio communication system shown generally at 10, provides for radio communications with mobile stations, of which the mobile station 12 is representative.
- the mobile station 12 is here representative of a multi-mode mobile station, capable of communicating at the 800/900/1800/1900/2200 MHz frequency bands.
- Such a mobile station is sometimes referred to as a world-band mobile station as the mobile station is operable in conformity with the operating specifications and protocols of the cellular, and other, communication systems that presently are predominant.
- the mobile station is representative of various radio devices that are operable over multiple bands or large bandwidths at relatively high frequencies.
- Radio access networks 14, 16, 18, 20, and 22 are representative of five radio networks operable respectively at the 800, 900, 1800, 1900, and 2200 MHz frequency bands, respectively.
- the mobile station 12 When the mobile station 12 is positioned within the coverage area of any of the radio access networks 14-22, the mobile station is capable of communicating therewith. If the separate networks have overlapping coverage areas, then the selection is made as to which of the networks through which to communicate.
- the radio access networks 14-22 are coupled, here by way of gateways (GWYs) 26 to a core network 28.
- GWYs gateways
- CE communication endpoint
- the mobile station 12 includes a radio transceiver having transceiver circuitry 36 capable of transceiving communication signals with any of the networks 14-22.
- the transceiver circuitry includes separate or shared transceiver paths constructed to be operable with the operating standards and protocols of the respective networks.
- the radio station further includes an antenna 42 of an embodiment of the present invention.
- the antenna is of characteristics to be operable at the different frequency bands at which the transceiver circuitry and the radio access networks are operable.
- the antenna 42 is operable at the 800, 900, 1800, 1900, and 2200 MHz frequencies.
- the antenna 42 is housed together with the transceiver circuitry, in a housing 44 of the mobile station. As the space within the housing that is available to house the antenna is limited, the dimensions of the antenna 42 are correspondingly small while providing for the transducing of signal energy by the antenna over broad frequencies at which the mobile station is operable.
- Figure 2 illustrates the antenna 42 that forms part of the mobile station 12, shown in Figure 1 .
- the antenna 42 in the exemplary implementation, forms a pent-band antenna, having bands of resonance encompassing five frequencies ranges associated with five communication systems with which the antenna is connectable is operable.
- the illustration of Figure 2 forms a planar configuration. That is to say, the representation shown in Figure 2 illustrates the antenna prior to configuration into tri-dimensional form.
- the illustration shows the pattern of the conductive parts of the antenna that are disposed upon a three-dimensional substrate, here a cubular-shaped substrate.
- the illustration also shows fold lines 48, 52, 54, 56, 58, and 62 corresponding to folds of the pattern about the cubular substrate upon which the conductive portions of the antenna are disposed, or otherwise positioned.
- the number of fold lines provide for presence of conductive antenna parts on any of the six sides.
- conductive parts are disposed upon a first side 64, a second side 66, a third side 68, a fourth side 72, and a fifth side 74.
- a sixth side 76 includes an antenna matching strip 94.
- the cubular-shaped substrate upon which the conductive parts of the antenna are formed is of generally rectangular dimensions. That is to say, height, width, and depth dimensions are dissimilar. In other implementations, other configurations are instead utilized.
- the conductive part of the antenna includes a conducting strip 82 formed of multiple portions, including portions on different ones of the face surfaces, including portions on different ones of the face surfaces of the underlying substrate.
- portions are formed at the first surface 64, the second surface 66, the third surface 68, the fourth surface 72, the fifth surface 74 and the sixth surface 76.
- Each portion of the conductive strip 82 has a lengthwise dimension, and the cumulative lengths of the portions together define a total length of the conducting strip.
- the conducting strip further includes an enlarged end portion 86 to improve the match, here formed at the first and fifth surfaces 64 and 74, whose dimensions are also, in part, determinative of the antenna characteristics of the antenna structure, including the conducting strip.
- a set of matching strips here a pair of matching strips 92 and 94, are integrally formed, and electrically connected with, the conducting strip 82.
- the strips 92 and 94 are of configurations and are positioned in manners to improve the return loss of the resultant antenna structure at low and high frequency band respectively.
- the matching strip 92 is formed at the third face surface 68 and matching strip 94 is formed at the sixth face surface 76.
- the matching strips are formed to extend along axes that are generally perpendicular to the axis along which the intersecting part of the conducting strip extends.
- a feeding connection point 96 is also defined at another end portion of the conducting strip.
- the feed connection point provides a point of connection with an active part of radio transceiver circuitry.
- FIG 3 again illustrates the antenna 42.
- the conducting strip 82 shown in Figure 2
- the conducting strip 82 is disposed upon a cubular-shaped substrate 102, having heightwise, lengthwise, and widthwise dimensions permitting of formation of portions of the conducting strip on various of the face surfaces of the substrate.
- the first side 64, the second side 66, and the sixth side 76 are visible.
- a path 104 leading to the feed connection point (shown in Figure 2 ) is also represented.
- the path is disposed upon a circuit board 106 at which radio circuitry (not separately shown) is positioned.
- the antenna formed of the cube upon which the folded conducting strip is disposed, is of dimensions of 7 mm x 15 mm x 7 mm.
- the substrate comprises a dielectric substrate, and the antenna volume is 0.75 cubic mm. And, when mounted upon the printed circuit board, the antenna extends to a height, h, above a ground plane defined at the printed circuit of 7 mm. And, in the illustrated implementation, the ground panel at which the ground plane is defined, is of rectangular dimensions of 60 mm by 90 mm. And, the substrate 102 comprises an FR-4 dielectric substrate of a 1.5 mm thickness and relative permittivity of 4.4.
- FIG 4 again illustrates the antenna 42, here taken from another view.
- the face sides 72 and 74 are visible.
- the substrate 102 is mounted upon the circuit board 106.
- FIG. 5 illustrates an arrangement of a further embodiment of the present invention.
- more than one antenna 42 is utilized.
- a two-antenna arrangement provides two antennas 42, each of constructions as described with respect to the previous figures, mounted upon the printed circuit board 106.
- the small physical dimensions of the antennas permit more than one antenna to be positioned at the printed circuit board.
- Use of the multiple antennas provides for the formation of an antenna array and MIMO (multiple input, multiple out) operation. Through appropriate positioning of the antennas relative to one another and with appropriate spacing therebetween, spatial diversity is provided that facilitates communication of data during communication operations of a radio device to which the antennas are connected.
- MIMO multiple input, multiple out
- Figure 6 illustrates a graphical representation 108 that shows exemplary return loss of an exemplary antenna 42 shown in any of the preceding figures.
- Review of the representation illustrates pass bands 110 and 112. Through appropriate selection of the configuration of the antenna, these pass bands are located at other frequencies.
- Figures 7 and 8 illustrate exemplary radiation patterns exhibited by the antenna 42 in an exemplary implementation.
- a first plot 118 is representative of the radiation pattern at 880 MHz in the XY plane.
- the curve 122 is representative of a second radiation pattern, also at the 880 MHz frequency, but in an XZ plane.
- a first radiation pattern 128 is representative of the radiation pattern at 1800 MHz in the XY plane.
- the radiation pattern 132 is representative of the radiation pattern, at the same frequency, but in the XZ plane.
- Figure 9 illustrates a method flow diagram shown generally at 142, representative of the method of operation of an embodiment of the present invention.
- the method transduces signal energy at a radio device.
- a first three-dimensional substrate is formed.
- a first folded conducting strip is formed upon the substrate.
- the strip includes a first folded portion positioned on a first face side of the substrate, and a second folded portion positioned on a second face side of the substrate.
- the method further comprises the operation, indicated by the block 148, of positioning a first set of matching strips, formed integral with the conducting strip, upon the substrate.
- the method is repeated to form a second antenna, and the antennas are positioned in a desired, spatial arrangement.
- a multi-band antenna is formed, of compact configuration, facilitating its use together with a mobile station, or other portable radio device.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Support Of Aerials (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07114886A EP2028715A1 (de) | 2007-08-23 | 2007-08-23 | Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät |
EP11156284A EP2323218A1 (de) | 2007-08-23 | 2007-08-23 | Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07114886A EP2028715A1 (de) | 2007-08-23 | 2007-08-23 | Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2028715A1 true EP2028715A1 (de) | 2009-02-25 |
Family
ID=38544130
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07114886A Ceased EP2028715A1 (de) | 2007-08-23 | 2007-08-23 | Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät |
EP11156284A Withdrawn EP2323218A1 (de) | 2007-08-23 | 2007-08-23 | Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11156284A Withdrawn EP2323218A1 (de) | 2007-08-23 | 2007-08-23 | Antenne und entsprechendes Verfahren für ein Multiband-Radiogerät |
Country Status (1)
Country | Link |
---|---|
EP (2) | EP2028715A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011113996A1 (en) * | 2010-03-17 | 2011-09-22 | Pulse Finland Oy | Multiband diversity antenna |
WO2011153640A1 (en) * | 2010-06-08 | 2011-12-15 | Research In Motion Limited | Low frequency dual-antenna diversity system |
WO2021078147A1 (zh) * | 2019-10-22 | 2021-04-29 | Oppo广东移动通信有限公司 | 天线装置及电子设备 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI606640B (zh) * | 2016-02-26 | 2017-11-21 | 致伸科技股份有限公司 | 天線結構以及應用該天線結構的電路模組與電子裝置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1162688A1 (de) | 1999-09-30 | 2001-12-12 | Murata Manufacturing Co., Ltd. | Oberflächenmontierbare antenne und kommunikationsgerät mit einer derartigen antenne |
US20020101382A1 (en) | 2001-02-01 | 2002-08-01 | Takayoshi Konishi | Chip antenna and antenna unit including the same |
US20030001781A1 (en) | 2001-06-29 | 2003-01-02 | Takayoshi Konishi | Antenna element with conductors formed on outer surfaces of device substrate |
US20030142022A1 (en) | 2002-01-28 | 2003-07-31 | Nokia Corporation | Tunable patch antenna for wireless communication terminals |
WO2004075342A1 (en) * | 2003-02-19 | 2004-09-02 | Fractus S.A. | Miniature antenna having a volumetric structure |
US20040252063A1 (en) * | 2003-06-11 | 2004-12-16 | Matsushita Electric Industrial Co., Ltd. | Antenna |
WO2006134701A1 (ja) * | 2005-06-17 | 2006-12-21 | Murata Manufacturing Co., Ltd. | アンテナ装置及び無線通信機 |
EP1742295A1 (de) * | 2001-03-05 | 2007-01-10 | Sony Corporation | Antenneneinrichtung |
-
2007
- 2007-08-23 EP EP07114886A patent/EP2028715A1/de not_active Ceased
- 2007-08-23 EP EP11156284A patent/EP2323218A1/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1162688A1 (de) | 1999-09-30 | 2001-12-12 | Murata Manufacturing Co., Ltd. | Oberflächenmontierbare antenne und kommunikationsgerät mit einer derartigen antenne |
US20020101382A1 (en) | 2001-02-01 | 2002-08-01 | Takayoshi Konishi | Chip antenna and antenna unit including the same |
EP1742295A1 (de) * | 2001-03-05 | 2007-01-10 | Sony Corporation | Antenneneinrichtung |
US20030001781A1 (en) | 2001-06-29 | 2003-01-02 | Takayoshi Konishi | Antenna element with conductors formed on outer surfaces of device substrate |
US20030142022A1 (en) | 2002-01-28 | 2003-07-31 | Nokia Corporation | Tunable patch antenna for wireless communication terminals |
WO2004075342A1 (en) * | 2003-02-19 | 2004-09-02 | Fractus S.A. | Miniature antenna having a volumetric structure |
US20040252063A1 (en) * | 2003-06-11 | 2004-12-16 | Matsushita Electric Industrial Co., Ltd. | Antenna |
WO2006134701A1 (ja) * | 2005-06-17 | 2006-12-21 | Murata Manufacturing Co., Ltd. | アンテナ装置及び無線通信機 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011113996A1 (en) * | 2010-03-17 | 2011-09-22 | Pulse Finland Oy | Multiband diversity antenna |
WO2011153640A1 (en) * | 2010-06-08 | 2011-12-15 | Research In Motion Limited | Low frequency dual-antenna diversity system |
US8350764B2 (en) | 2010-06-08 | 2013-01-08 | Research In Motion Limited | Low frequency dual-antenna diversity system |
WO2021078147A1 (zh) * | 2019-10-22 | 2021-04-29 | Oppo广东移动通信有限公司 | 天线装置及电子设备 |
Also Published As
Publication number | Publication date |
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EP2323218A1 (de) | 2011-05-18 |
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