EP3721504A1 - Antenne pour circuit imprimé, circuit électronique et équipement électronique pourvus d'une telle antenne - Google Patents
Antenne pour circuit imprimé, circuit électronique et équipement électronique pourvus d'une telle antenneInfo
- Publication number
- EP3721504A1 EP3721504A1 EP18811313.8A EP18811313A EP3721504A1 EP 3721504 A1 EP3721504 A1 EP 3721504A1 EP 18811313 A EP18811313 A EP 18811313A EP 3721504 A1 EP3721504 A1 EP 3721504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support plate
- antenna
- positioning
- circuit
- electrically conductive
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000012777 electrically insulating material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002966 varnish Substances 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
- H01Q1/36—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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- 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
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
-
- 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
- H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
Definitions
- the present invention relates to the field of radio frequency transmission.
- one of the tracks is connected to an antenna.
- the antenna can have several forms. There are antennas formed directly by conductive tracks extending on the support plate. This however increases the bulk of the support plate. There are also separate antennas connected to the conductive tracks of the support plate via a connector and electronic cables. This complicates the manufacture of the electronic circuit and requires a provision for fixing the antenna in a housing housing the electronic circuit.
- An object of the invention is to provide a means for simplifying the manufacture of electronic circuits antenna without increasing the size.
- an antenna comprising a fixing body carrying an electrically conductive circuit having at least one signal input section and a radiating section, the fixing body comprising two positioning parts delimiting between they a passage dimensioned to receive an edge of a printed circuit support plate, the input section being carried by one of the positioning parts to extend opposite a face of said support plate and the body comprising means for clamping the support plate against at least one of the positioning parts.
- the antenna is arranged to be attached to an edge of the printed circuit board, which limits the antenna footprint on the printed circuit board and the connection to the printed circuit can be made in a simple manner from the inlet section which extends opposite a face of said plate.
- the clamping means comprise an elastically deformable portion connecting at least one of the positioning parts to the rest of the body to return said positioning portion to a position in which the passage has a width less than a thickness of the support plate.
- This method of attachment is particularly simple since the clamping force is only the result of the elasticity of the fixing body without using external clamping means.
- the input section is positioned to establish an electromagnetic coupling with an electrically conductive track of the support plate.
- This mode of connection is simple to manufacture and not very fragile.
- the antenna circuit comprises two contacts mounted in one of the positioning parts to have one end extending elastically projecting from said positioning part facing the other positioning part to form two entrance sections.
- the radiating section is in relief
- the invention also relates to an electronic circuit comprising:
- a support plate carrying electronic components connected to electrically conductive tracks extending over at least a first face of the support plate
- an antenna comprising a fixing body carrying an electrically conductive circuit having at least one signal input section and a radiating section, the fixing body comprising two positioning parts delimiting between them a passage in which is clamped an edge of the support plate, the input section being carried by one of the positioning parts to extend facing a face of said support plate.
- the invention relates to an electronic equipment comprising a housing in which is housed such an electronic circuit, the antenna also extending into the housing in the vicinity of an outer wall thereof to have a radiating field beyond of this outer wall of the housing.
- FIG. 1 is a partial schematic perspective view of an electronic equipment according to a first embodiment of the invention
- FIG. 2 is a view similar to FIG. 1 of electronic equipment according to a second embodiment of the invention
- the electronic circuit comprises:
- a support plate 10 (commonly called PCB of the English "printed circuit board") having a first face 10.1 and a second face 10.2,
- the antenna 1 comprises a fastening body 2, made of electrically insulating material, carrying an electrically conductive circuit generally designated 3.
- the fastening body 2 comprises two positioning parts 2.1, 2.2 delimiting between they have a passage delimited by parallel flanks separated by a distance sufficient to receive an edge of the support plate 10.
- the fixing body 2 here has a thickness of 5.25 mm and is made of ABS with a permittivity Br of about 2.8.
- the fixing body 2 comprises means for clamping the support plate 10 against at least one of the positioning parts 2.1, 2.2.
- the clamping means comprise a resilient deformable elastic portion connecting the positioning parts 2.1, 2.2 to the rest of the body to recall said positioning parts in a position in which the passageway has a width less than a thickness of the support plate 10 such that the edge of the support plate 10 is clamped in the passage by the positioning parts 2.1, 2.2 which pinch the edge of the support plate 10.
- the circuit 3 comprises at least one signal input section and a radiating section 5.
- the radiating section 5 is in relief, that is to say it extends over a non-planar surface and more precisely curved here. around a single axis.
- the input section is carried by the positioning part 2.1 to extend facing the face 10.1 of the support plate 10.
- Circuit 3 is arranged to be single band or multiband.
- the circuit 3 has a frequency of 2.45 GHz for use in the 2.4 - 2.5 GHz frequency band used for wireless local area networks according to the IEEE 802.11 standard.
- the circuit 3 has an impedance of 50 ohms, and is arranged to have a return loss of at most 10 dB and a conversion rate of at least 70%, that is that is, 70% of the energy consumed is radiated.
- the antenna 1 extends in the housing in the vicinity of an outer wall 100 thereof to have a radiating field beyond this outer wall 100 of the housing.
- the input section bearing the reference numeral 4
- the inlet section 4 is positioned to establish an electromagnetic coupling with an electrically conductive track 12 of the support plate 10.
- the inlet section 4 extends parallel to track 12 and next to it.
- the inlet section 4 is separated from the track 12 by a distance of between 1 mm and 5 mm.
- the conductive track 12 has a width of 0.5 mm with a main section of length 11 of 7.50 mm and two end sections, perpendicular to the main section, having a length 12 of 3.65 mm.
- the inlet section 4 has the same length and the same width as the main section of the conductive track 12.
- the inlet section 4 has a first end connected to a notional mass 8 of length 13 of 6.25 mm by a intermediate section of length 2.5 mm and a second end connected to the radiating section 5 by an intermediate section of length 14 of 8.05 mm.
- the radiating section 5 is substantially U-shaped with a branch whose free end is connected to the intermediate length section 14 and another free branch.
- the branches have a length of 8.94 mm.
- the fixing body 2 here has a generally U-shaped shape with two plane outer surfaces connected to one another by a concave curved surface.
- the flat outer surfaces are parallel to the sidewalls of the passage.
- the radiating section 5 extends over a portion of the planar outer surface integral with the positioning portion 2.1 and on the curved outer surface.
- the circuit 11 comprises two electrically conductive pads 13, 14 extending on the face 10, 1 of the support plate 10.
- the circuit 3 comprises two contacts 6, 7 mounted in the positioning part 2.1 to have an end extending elastically projecting from said positioning part 2.1 in the passage to be elastically applied against the conductive pads
- the fixing body 2 here has a general shape with a cylindrical outer surface of circular section.
- the radiating section 5 extends on said outer surface.
- the fixing body can be obtained by molding in one piece or by assembling several parts.
- the fixing body may have another shape than that described and for example a parallelepiped shape.
- the clamping means may comprise an element screwed into one of the positioning parts of the fastener body to press the support plate against the other of the positioning parts.
- the antenna circuit can be deposited on the fixing body and then possibly covered with a varnish, or embedded in the material of the fixing body.
- the body can be made of plastic, such as ABS, or not, like a ceramic.
- the electrical circuit 3 can be arranged to operate in other frequency bands and for example the LTE or GSM bands.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
- Electric Clocks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1762396A FR3075484B1 (fr) | 2017-12-18 | 2017-12-18 | Antenne pour circuit imprime, circuit electronique et equipement electronique pourvus d'une telle antenne |
PCT/EP2018/083850 WO2019121045A1 (fr) | 2017-12-18 | 2018-12-06 | Antenne pour circuit imprime, circuit electronique et equipement electronique pourvus d'une telle antenne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3721504A1 true EP3721504A1 (fr) | 2020-10-14 |
EP3721504B1 EP3721504B1 (fr) | 2024-04-17 |
Family
ID=61873444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18811313.8A Active EP3721504B1 (fr) | 2017-12-18 | 2018-12-06 | Antenne pour circuit imprimé, circuit électronique et équipement électronique pourvus d'une telle antenne |
Country Status (6)
Country | Link |
---|---|
US (1) | US11532865B2 (fr) |
EP (1) | EP3721504B1 (fr) |
CN (1) | CN111480264A (fr) |
BR (1) | BR112020011485A2 (fr) |
FR (1) | FR3075484B1 (fr) |
WO (1) | WO2019121045A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3075484B1 (fr) * | 2017-12-18 | 2021-10-15 | Sagemcom Broadband Sas | Antenne pour circuit imprime, circuit electronique et equipement electronique pourvus d'une telle antenne |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7289069B2 (en) * | 2005-01-04 | 2007-10-30 | Nokia Corporation | Wireless device antenna |
KR100640365B1 (ko) * | 2005-06-15 | 2006-10-30 | 삼성전자주식회사 | 휴대용 단말기의 안테나 장치 |
CN101375298B (zh) * | 2006-03-10 | 2010-12-01 | 松下电器产业株式会社 | 卡型信息装置及其制造方法 |
JP4772602B2 (ja) * | 2006-06-29 | 2011-09-14 | 京セラ株式会社 | アンテナ装置および同アンテナ装置を搭載した携帯端末装置 |
US7322833B1 (en) * | 2006-10-31 | 2008-01-29 | Flextronics Ap, Llc | Connection of FPC antenna to PCB |
US7889139B2 (en) * | 2007-06-21 | 2011-02-15 | Apple Inc. | Handheld electronic device with cable grounding |
US7911387B2 (en) * | 2007-06-21 | 2011-03-22 | Apple Inc. | Handheld electronic device antennas |
US8044863B2 (en) * | 2008-11-26 | 2011-10-25 | Research In Motion Limited | Low profile, folded antenna assembly for handheld communication devices |
TW201025736A (en) * | 2008-12-29 | 2010-07-01 | Arcadyan Technology Corp | Antenna |
TWI451628B (zh) * | 2009-03-17 | 2014-09-01 | Hon Hai Prec Ind Co Ltd | 具有天線結構之電子設備 |
CN103026551B (zh) * | 2010-09-14 | 2015-03-25 | 株式会社村田制作所 | 读写用天线模块以及天线装置 |
GB2503930A (en) * | 2012-07-13 | 2014-01-15 | Harris Corp | Dielectrically loaded antenna with PCB feeder structure and mounting tabs, mounted to RF PCB |
US9337532B2 (en) * | 2012-09-18 | 2016-05-10 | Futurewei Technologies, Inc. | Multi layer 3D antenna carrier arrangement for electronic devices |
US20140159990A1 (en) * | 2012-12-11 | 2014-06-12 | Opticon Sensors Europe B.V. | Antenna mounted on a circuit board |
JP6101710B2 (ja) * | 2013-08-02 | 2017-03-22 | 株式会社村田製作所 | アンテナ装置及び通信端末機器 |
CN205902188U (zh) * | 2014-03-27 | 2017-01-18 | 株式会社村田制作所 | 电气元件以及移动设备 |
JP6557872B2 (ja) * | 2016-03-17 | 2019-08-14 | パナソニックIpマネジメント株式会社 | 無線モジュールおよび画像表示装置 |
US10775490B2 (en) * | 2017-10-12 | 2020-09-15 | Infineon Technologies Ag | Radio frequency systems integrated with displays and methods of formation thereof |
FR3075484B1 (fr) * | 2017-12-18 | 2021-10-15 | Sagemcom Broadband Sas | Antenne pour circuit imprime, circuit electronique et equipement electronique pourvus d'une telle antenne |
-
2017
- 2017-12-18 FR FR1762396A patent/FR3075484B1/fr active Active
-
2018
- 2018-12-06 US US16/770,752 patent/US11532865B2/en active Active
- 2018-12-06 CN CN201880081432.6A patent/CN111480264A/zh active Pending
- 2018-12-06 EP EP18811313.8A patent/EP3721504B1/fr active Active
- 2018-12-06 WO PCT/EP2018/083850 patent/WO2019121045A1/fr unknown
- 2018-12-06 BR BR112020011485-5A patent/BR112020011485A2/pt unknown
Also Published As
Publication number | Publication date |
---|---|
FR3075484A1 (fr) | 2019-06-21 |
BR112020011485A2 (pt) | 2020-11-17 |
EP3721504B1 (fr) | 2024-04-17 |
WO2019121045A1 (fr) | 2019-06-27 |
CN111480264A (zh) | 2020-07-31 |
US20210143521A1 (en) | 2021-05-13 |
US11532865B2 (en) | 2022-12-20 |
FR3075484B1 (fr) | 2021-10-15 |
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