EP2034555B1 - Dispositif de communication mobile sans fil incluant une antenne unipolaire repliée à spires multiples et procédés associés - Google Patents

Dispositif de communication mobile sans fil incluant une antenne unipolaire repliée à spires multiples et procédés associés Download PDF

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Publication number
EP2034555B1
EP2034555B1 EP07115840A EP07115840A EP2034555B1 EP 2034555 B1 EP2034555 B1 EP 2034555B1 EP 07115840 A EP07115840 A EP 07115840A EP 07115840 A EP07115840 A EP 07115840A EP 2034555 B1 EP2034555 B1 EP 2034555B1
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EP
European Patent Office
Prior art keywords
dielectric body
wireless communications
monopole antenna
antenna
folded monopole
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.)
Not-in-force
Application number
EP07115840A
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German (de)
English (en)
Other versions
EP2034555A1 (fr
Inventor
Qinjiang Rao
Geyi Wen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BlackBerry Ltd
Original Assignee
Research in Motion Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd
Priority to AT07115840T priority Critical patent/ATE496403T1/de
Priority to EP07115840A priority patent/EP2034555B1/fr
Priority to DE602007012101T priority patent/DE602007012101D1/de
Priority to CA2638104A priority patent/CA2638104C/fr
Publication of EP2034555A1 publication Critical patent/EP2034555A1/fr
Application granted granted Critical
Publication of EP2034555B1 publication Critical patent/EP2034555B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • 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
    • 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

Definitions

  • the present invention relates to the field of communications systems, and, more particularly, to mobile wireless communications devices and antennas therefor, and related methods.
  • a mobile handset which may operate over multiple frequency bands to provide various communication services (e.g., GSM 850/900/1800/1900 and UMTS 2100) may be required to accommodate more than one antenna to achieve such wideband operation, as well as to provide desired beam forming and/or enhance communications system capacity.
  • GSM 850/900/1800/1900 and UMTS 2100 may be required to accommodate more than one antenna to achieve such wideband operation, as well as to provide desired beam forming and/or enhance communications system capacity.
  • designing small antennas that can meet these technical challenges can be difficult. See, e.g., Wen, "Physical Limitations of Antennas," IEEE Transactions on Antennas and Propagation, vol. 51, no. 8, pgs. 2116-2123, 2003 .
  • PIFAs Internal planar inverted-F antennas
  • PIFAs Internal planar inverted-F antennas
  • one drawback of typical PIFA antennas is that they have a relatively limited (i.e., narrow) frequency bandwidth. See, e.g., Liu et al., “Dual-Frequency Planar Inverted-F Antenna,” IEEE Transactions on Antennas and Propagation, vol. 45, no. 9, pgs. 1451-1457, October 1997 ; Rowell et al., "A Compact PIFA Suitable for Dual-Frequency 900/1800-MHz Operation," IEEE Transactions on Antennas and Propagation, vol. 46, pgs.
  • the monopole antenna typically has a relatively wide bandwidth as compared with that of a PIFA.
  • a significant drawback of typical monopole antennas is that they require a relatively large surface area (i.e., they are larger) than a comparable PIFA.
  • Another drawback of monopole antennas is that, due in part to the size constraints, when they are implemented in a handheld device they are typically implemented as external antennas, which results in an undesirable form factor for users.
  • PIFAs are relatively easy to implement as internal antennas.
  • a monopole antenna in addition to its wideband response, is its isolation from the surrounding environment, and, more specifically, the ground plane.
  • Monopole antennas are also comparatively simpler, and have a relatively low profile.
  • the antenna arrangement includes a pair of spaced folded monopole antennas.
  • Each antenna includes a first printed circuit board having a conducting surface that forms a ground plane.
  • Mounted on the first circuit board is a second printed circuit board having a right-angled strip of conducting material, which forms a folded monopole radiating element. The folding of the monopole reduces its height, to thereby enable it to fit into small casings and the like.
  • a shunt inductance is introduced between the monopole and the ground plane.
  • the antennas are mounted within cavities that can be lined or coated with metallic material to improve the radiation patterns of the antennas and isolate them from the electronic components of the communications system.
  • Patent application US 2004/0130495 A1 presents a miniaturised folded monopole antenna on a ceramic substrate which is mounted on a PCB.
  • the matching of the antenna is done by varying the distance between the substrate and the PCB.
  • FIG. 1 is a schematic block diagram of a mobile wireless communications device in accordance with an exemplary embodiment including a folded monopole antenna (FMA).
  • FMA folded monopole antenna
  • FIG. 2 is a top perspective view of a printed circuit board (PCB) having a folded monopole antenna thereon in accordance with one aspect.
  • PCB printed circuit board
  • FIG. 3 is a bottom perspective view of the PCB and folded monopole antenna of FIG. 2 .
  • FIGS. 4A and 4B are enlarged perspective views of the folded monopole antenna as seen in FIGS. 2 and 3 , respectively.
  • FIGS. 5A and 5B are enlarged perspective views of the dielectric body of the folded monopole antenna as seen in FIGS. 2 and 3 , respectively, with the conductive trace removed.
  • FIG. 6 is a graph of simulated and measured return loss vs. frequency for an embodiment of the folded monopole antenna of FIG. 2 .
  • FIGS. 7 and 8 are enlarged perspective views of the antenna of FIG. 2 (with dielectric body removed) showing current distributions for operating frequencies of 900 MHz and 1800 MHz, respectively.
  • FIG. 9 is a measured radiation pattern diagram for an embodiment of the folded monopole antenna of FIG. 2 in the ZX plane at 900 MHz and 1810 MHz.
  • FIG. 10 is a measured radiation pattern diagram for an embodiment of the folded monopole antenna of FIG. 2 in the YZ plane at 900 MHz and 1810 MHz.
  • FIG. 11 is a schematic block diagram illustrating exemplary components of a mobile wireless communications device in which the folded monopole antenna of FIG. 2 may be used.
  • a mobile wireless communications device may include a portable housing, a printed circuit board (PCB) carried within the portable housing, and wireless communications circuitry carried by the PCB within the portable housing.
  • a folded monopole antenna may be coupled to the wireless communications circuitry.
  • the folded monopole antenna may include a dielectric body having a generally rectangular shape defining a bottom portion adjacent the PCB and a top portion opposite the bottom portion.
  • the antenna may also include a conductive trace having a bottom loop adjacent the bottom portion of the dielectric body, a top loop adjacent the top portion of the dielectric body, and an intermediate wrap-around section extending around the dielectric body and between the bottom and top loops.
  • the conductive trace may further comprise a feed section adjacent the bottom portion of the dielectric body and electrically coupled to the wrap-around intermediate section.
  • the dielectric body may have opposing top and bottom faces, opposing first and second end faces, and opposing first and second side faces.
  • the intermediate wrap-around section may define a generally rectangular coil around the first and second end faces and the first and second side faces.
  • the top loop may extend along the first and second end faces, the first and second side faces, and the top face of the dielectric body.
  • the bottom loop may extend along the bottom face of the dielectric body, for example.
  • the dielectric body may comprise a dielectric cube.
  • the wireless communications circuitry may comprise a cellular transceiver, for example.
  • the folded monopole antenna may advantageously operate over a plurality of radio frequency (RF) communications bands.
  • a folded monopole antenna such as the one described briefly above, and a method for making the same are also provided.
  • the method may include forming a dielectric body having a generally rectangular shape defining a bottom portion and a top portion opposite the bottom portion.
  • a conductive trace may be formed having a bottom loop adjacent the bottom portion of the dielectric body, a top loop adjacent the top portion of the dielectric body, and an intermediate wrap-around section extending around the dielectric body and between the bottom and top loops.
  • a mobile wireless communications device 20 illustratively includes a portable housing 21 , a printed circuit board (PCB) 22 carried within the portable housing, and wireless communications circuitry 23 carried by the PCB within the portable housing.
  • the wireless communications circuitry 23 is carried on a top dielectric layer 25 of the PCB 22 ( FIG. 2 ), and the PCB also has a ground plane 26 on a bottom side thereof ( FIG. 3 ) opposite the top dielectric layer.
  • the wireless communications circuitry 23 may comprise cellular communications circuitry, e.g., a cellular transceiver.
  • Other wireless communications circuitry such as wireless local area network (WLAN) and satellite positioning (e.g., GPS) communications circuitry, may also be used, as will be discussed further below.
  • WLAN wireless local area network
  • GPS satellite positioning
  • the device 20 further illustratively includes a folded monopole antenna 24 coupled to the wireless communications circuitry 23 .
  • the folded monopole antenna 24 illustratively includes a dielectric body 30 having a generally rectangular shape defining a bottom portion 31 adjacent the PCB 22 , and a top portion 32 opposite the bottom portion.
  • the antenna 24 also illustratively includes a conductive trace 33 having a bottom loop D adjacent the bottom portion 31 of the dielectric body 30 , a top loop A adjacent the top portion 32 of the dielectric body, and an intermediate wrap-around section including elements B, C, E, F and G extending around the dielectric body and between the bottom and top loops, as shown.
  • the conductive trace 33 may be conceptualized as the two loop sections A and D , the two U-shaped strips B and C vertically spaced apart between the two loops, and three vertical strips E, F and G for electrically connecting or coupling loops A, D , and strips B, C .
  • the dielectric body 30 has opposing top and bottom faces 35 and 36 , opposing first and second end faces 37 and 38 , and opposing first and second side faces 39 and 40 .
  • the intermediate wrap-around section i.e., strips B, C, E, F and G ) defines a generally rectangular coil around the first and second end faces 37 and 38 and the first and second side faces 39 and 40 .
  • the top loop A illustratively extends along the first and second end faces 37 and 38 , the first and second side faces 39 and 40 , and the top face 35 of the dielectric body 30 .
  • the bottom loop D illustratively extends along the bottom face 36 of the dielectric body 30, as shown.
  • the dielectric body 30 is a cube in the illustrated example (i.e., all of the faces 35-40 have the same dimensions), but other shapes may be used in different embodiments.
  • the conductive trace 33 further comprises a feed section 41 adjacent the bottom portion 31 of the dielectric body 30 and electrically coupled to the wrap-around intermediate section, and more particularly to the conductive strip C .
  • the feed section 41 could be coupled to other portions of the conductive trace 33 in other embodiments.
  • the feed section electrically couples the conductive trace 33 to the wireless communications circuitry 23 .
  • the wireless communications circuitry 23 includes cellular transmitter/receiver circuitry for communicating over a plurality of cellular communications bands, as will be discussed further below.
  • RF radio frequency
  • other types of wireless radio frequency (RF) communications circuitry e.g., Bluetooth/802.11 WLAN circuitry
  • RF radio frequency
  • satellite positioning receiver circuitry e.g., GPS, Galileo, GLONASS, etc.
  • the length of a straight, grounded monopole antenna is ordinarily set to be a quarter wavelength for the given operating frequency to operate in its fundamental mode, and it usually has a relatively narrow bandwidth.
  • the conductive trace 33 is advantageously "folded" into the cubic structure described above, although it could be etched on a supporting dielectric surface in some embodiments, as will be appreciated by those skilled in the art.
  • the conductive trace 33 Since the total electrical length of the conductive trace 33 is still the same as an equivalent straight monopole, the conductive trace has the same fundamental operating frequency as a straight strip does, but the overall dimension or size of the antenna 24 is significantly reduced with respect to a comparable traditional monopole element.
  • the folding of the conductive trace 33 also advantageously enhances bandwidth of the antenna 24 , as will be now be discussed with reference to an exemplary implementation of the antenna.
  • the antenna 24 maybe a 0.9 cm x 0.9 cm x 1 cm cube 30 .
  • Such dimensions advantageously allow the antenna 24 to be used in a "smart" antenna array (e.g., adaptive or multiple-input multiple-output (MIMO)) in a handset, whereas a traditional PIFA would typically be too big to form such an array in a handset.
  • MIMO adaptive or multiple-input multiple-output
  • the exemplary antenna covered GSM 850/900/1800/1900 and UMTS 2100 frequency bands, and it exhibited desirable gain patterns due to the advantageous current distribution on the conductive trace 33 .
  • both simulated and measured return losses for the exemplary implementation are shown.
  • the relatively close “agreement" between the two curves demonstrates that the antenna 24 provides coverage over GSM /850/900/1800/1900 and UMTS 2100 bands.
  • Simulated electric current distributions for the exemplary embodiment of the antenna 24 are shown in FIGS. 7 and 8 for 900 MHz and 1800 MHz, respectively. It can be seen that the top loop A and the bottom loop D are primarily used for impedance matching.
  • the two U-shaped strips B and C not only contribute to the higher frequency band, but also to the lower operating frequencies as well.
  • Substantially the entire length of the conductive trace 33 contributes to the low frequency band 850/900. Due to the symmetry, a zero current point occurs at the geometric center point of the vertical connection strip F , although this point shifts for higher frequency bands (e.g., 1800/1900/2100 MHz). In both the high and the low frequency bands, the folded layout causes current flow along couples of strips in the Y and in the X directions to be in-phase, resulting in a relatively high gain radiation pattern, as will be appreciated by those skilled in the art.
  • measured radiation patterns of the exemplary implementation at the two resonant frequencies of 900 MHz and 1810 MHz are shown in the ZX plane ( FIG. 9 ) and the YZ plane ( FIG. 10 ).
  • the antenna 24 has directive radiation in the two radiation planes (ZX and ZY) when it operates at 1.81 GHz.
  • the antenna 24 also radiates directionally in the ZX plane if the operating frequency is at 900 MHz. It will therefore be appreciated that the antenna 24 may provide relatively high gain radiation in certain embodiments.
  • the antenna 24 thus has desirable polarization diversity due to the use of the above-described symmetrical strips along X and Y directions. These symmetrical strips allow current to primarily flow along X and Y directions, which advantageously allows 2D polarization diversity to be achieved in the XY plane, as will be appreciated by those skilled in the art.
  • the advantageous use of three-dimensional wrapping reduces the extension of the antenna and at the same time enhances its bandwidth.
  • the 3D wrapping allows space to be used efficiently while also increasing bandwidth, which is equivalent to reducing the stored energy around the antenna.
  • a method for making the antenna 24 may include forming a dielectric body 30 having a generally rectangular shape defining a bottom portion 31 and a top portion 32 opposite the bottom portion. Furthermore, a conductive trace 33 may be formed on the dielectric body 30 having a bottom loop D adjacent the bottom portion 31 of the dielectric body, a top loop adjacent the top portion 32 of the dielectric body, and an intermediate wrap-around section (strips B, C, E, F, and G ) extending around the dielectric body and between the bottom and top loops.
  • the device 1000 illustratively includes a housing 1200 , a keypad 1400 and an output device 1600.
  • the output device shown is a display 1600, which is preferably a full graphic LCD. Other types of output devices may alternatively be utilized.
  • a processing device 1800 is contained within the housing 1200 and is coupled between the keypad 1400 and the display 1600 . The processing device 1800 controls the operation of the display 1600 , as well as the overall operation of the mobile device 1000 , in response to actuation of keys on the keypad 1400 by the user.
  • the housing 1200 may be elongated vertically, or may take on other sizes and shapes (including clamshell housing structures).
  • the keypad may include a mode selection key, or other hardware or software for switching between text entry and telephony entry.
  • FIG. 11 In addition to the processing device 1800 , other parts of the mobile device 1000 are shown schematically in FIG. 11 . These include a communications subsystem 1001 ; a short-range communications subsystem 1020 ; the keypad 1400 and the display 1600 , along with other input/output devices 1060, 1080, 1100 and 1120 ; as well as memory devices 1160, 1180 and various other device subsystems 1201 .
  • the mobile device 1000 is preferably a two-way RF communications device having voice and data communications capabilities.
  • the mobile device 1000 preferably has the capability to communicate with other computer systems via the Internet.
  • Operating system software executed by the processing device 1800 is preferably stored in a persistent store, such as the flash memory 1160, but may be stored in other types of memory devices, such as a read only memory (ROM) or similar storage element.
  • system software, specific device applications, or parts thereof may be temporarily loaded into a volatile store, such as the random access memory (RAM) 1180 .
  • Communications signals received by the mobile device may also be stored in the RAM 1180 .
  • the processing device 1800 in addition to its operating system functions, enables execution of software applications 1300A-1300N on the device 1000.
  • a predetermined set of applications that control basic device operations, such as data and voice communications 1300A and 1300B may be installed on the device 1000 during manufacture.
  • a personal information manager (PIM) application may be installed during manufacture.
  • the PIM is preferably capable of organizing and managing data items, such as e-mail, calendar events, voice mails, appointments, and task items.
  • the PIM application is also preferably capable of sending and receiving data items via a wireless network 1401 .
  • the PIM data items are seamlessly integrated, synchronized and updated via the wireless network 1401 with the device user's corresponding data items stored or associated with a host computer system.
  • the communications subsystem 1001 includes a receiver 1500 , a transmitter 1520 , and one or more antennas 1540 and 1560 .
  • the communications subsystem 1001 also includes a processing module, such as a digital signal processor (DSP) 1580 , and local oscillators (LOs) 1601 .
  • DSP digital signal processor
  • LOs local oscillators
  • a mobile device 1000 may include a communications subsystem 1001 designed to operate with the MobitexTM, Data TACTM or General Packet Radio Service (GPRS) mobile data communications networks, and also designed to operate with any of a variety of voice communications networks, such as AMPS, TDMA, CDMA, WCDMA, PCS, GSM, EDGE, etc. Other types of data and voice networks, both separate and integrated, may also be utilized with the mobile device 1000 .
  • the mobile device 1000 may also be compliant with other communications standards such as 3GSM, 3GPP, UMTS, etc.
  • Network access requirements vary depending upon the type of communication system. For example, in the Mobitex and DataTAC networks, mobile devices are registered on the network using a unique personal identification number or PIN associated with each device. In GPRS networks, however, network access is associated with a subscriber or user of a device. A GPRS device therefore requires a subscriber identity module, commonly referred to as a SIM card, in order to operate on a GPRS network.
  • SIM card subscriber identity module
  • the mobile device 1000 may send and receive communications signals over the communication network 1401 .
  • Signals received from the communications network 1401 by the antenna 1540 are routed to the receiver 1500 , which provides for signal amplification, frequency down conversion, filtering, channel selection, etc., and may also provide analog to digital conversion. Analog-to-digital conversion of the received signal allows the DSP 1580 to perform more complex communications functions, such as demodulation and decoding.
  • signals to be transmitted to the network 1401 are processed (e.g. modulated and encoded) by the DSP 1580 and are then provided to the transmitter 1520 for digital to analog conversion, frequency up conversion, filtering, amplification and transmission to the communication network 1401 (or networks) via the antenna 1560 .
  • the DSP 1580 provides for control of the receiver 1500 and the transmitter 1520 .
  • gains applied to communications signals in the receiver 1500 and transmitter 1520 may be adaptively controlled through automatic gain control algorithms implemented in the DSP 1580.
  • a received signal such as a text message or web page download
  • the communications subsystem 1001 is input to the processing device 1800 .
  • the received signal is then further processed by the processing device 1800 for an output to the display 1600 , or alternatively to some other auxiliary I/O device 1060 .
  • a device user may also compose data items, such as e-mail messages, using the keypad 1400 and/or some other auxiliary I/O device 1060 , such as a touchpad, a rocker switch, a thumb-wheel, or some other type of input device.
  • the composed data items may then be transmitted over the communications network 1401 via the communications subsystem 1001 .
  • a voice communications mode In a voice communications mode, overall operation of the device is substantially similar to the data communications mode, except that received signals are output to a speaker 1100, and signals for transmission are generated by a microphone 1120 .
  • Alternative voice or audio I/O subsystems such as a voice message recording subsystem, may also be implemented on the device 1000 .
  • the display 1600 may also be utilized in voice communications mode, for example to display the identity of a calling party, the duration of a voice call, or other voice call related information.
  • the short-range communications subsystem enables communication between the mobile device 1000 and other proximate systems or devices, which need not necessarily be similar devices.
  • the short-range communications subsystem may include an infrared device and associated circuits and components, or a BluetoothTM communications module to provide for communication with similarly-enabled systems and devices.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)

Claims (7)

  1. Antenne monopolaire repliée (24), destinée à un dispositif de communication mobile sans fil (20), comprenant:
    une carte de circuits ;
    un corps diélectrique rectangulaire (30) possédant une face inférieure (31) parallèle à une surface de ladite carte de circuits, une face supérieure (32) opposée à la face inférieure, des première et seconde faces d'extrémité opposées (37, 38) et des première et seconde faces latérales opposées (39, 40) ;
    caractérisée par:
    une piste conductrice (33) comprenant une boucle inférieure (D) sur la face inférieure dudit corps diélectrique, une boucle supérieure (A) sur la face supérieure dudit corps diélectrique et une section intermédiaire enroulée (B, C, E, F, G) sur et autour de la surface dudit corps diélectrique et entre lesdites boucles inférieure et supérieure ;
    ladite boucle supérieure s'étendant le long des première et seconde faces d'extrémité, des première et seconde face latérales et de la face supérieure du corps diélectrique ;
    ladite section intermédiaire enroulée définissant une bobine rectangulaire sur les première et seconde faces d'extrémité et les première et seconde faces latérales.
  2. Antenne monopolaire repliée selon la revendication 1, dans laquelle ladite piste conductrice comprend en outre une section d'alimentation sur la face inférieure dudit corps diélectrique et est couplée électriquement à ladite section intermédiaire enroulée.
  3. Antenne monopolaire repliée selon la revendication 1, dans laquelle ledit corps diélectrique est constitué d'un cube diélectrique.
  4. Dispositif de communication mobile sans fil (20) comprenant:
    un boîtier portatif (21) ; et
    une antenne monopolaire repliée (24), selon la revendication 1, couplée à un ensemble de circuits de communication sans fil (23) et supportée par ladite carte de circuits au sein dudit boîtier portatif.
  5. Dispositif selon la revendication 4, dans lequel ledit ensemble de circuits de communication sans fil comprend un émetteur-récepteur cellulaire.
  6. Procédé de fabrication d'une antenne monopolaire repliée (24) pour un dispositif de communication mobile sans fil (20) selon la revendication 4, comprenant les étapes consistant à :
    former un corps diélectrique (30) ayant une forme rectangulaire définissant une partie inférieure (31) et une partie supérieure (32), opposée à la partie inférieure ;
    ledit corps diélectrique possédant des faces inférieure et supérieure opposées, des première et seconde faces d'extrémité opposées (37, 38) et des première et seconde face latérales opposées (39, 40) ; et
    former une piste conductrice (33) comprenant une boucle inférieure (D) sur la face inférieure dudit corps diélectrique, une boucle supérieure (A) sur la face supérieure dudit corps diélectrique et une section intermédiaire enroulée (B, C, E, F, G) sur et autour de la surface dudit corps diélectrique et entre lesdites boucles inférieure et supérieure ;
    ladite boucle supérieure s'étendant le long des première et seconde faces d'extrémité, des première et seconde face latérales et de la face supérieure du corps diélectrique ;
    ladite section intermédiaire enroulée définissant une bobine rectangulaire sur les première et seconde faces d'extrémité et les première et seconde faces latérales.
  7. Procédé selon la revendication 6, dans lequel ladite piste conductrice comprend en outre une section d'alimentation sur la face inférieure du corps diélectrique et est couplée électriquement à ladite section intermédiaire enroulée.
EP07115840A 2007-09-06 2007-09-06 Dispositif de communication mobile sans fil incluant une antenne unipolaire repliée à spires multiples et procédés associés Not-in-force EP2034555B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT07115840T ATE496403T1 (de) 2007-09-06 2007-09-06 Mobile drahtlose kommunikationsvorrichtung mit mehrfach gewundener gefalteter monopolantenne und entsprechende verfahren
EP07115840A EP2034555B1 (fr) 2007-09-06 2007-09-06 Dispositif de communication mobile sans fil incluant une antenne unipolaire repliée à spires multiples et procédés associés
DE602007012101T DE602007012101D1 (de) 2007-09-06 2007-09-06 Mobile drahtlose Kommunikationsvorrichtung mit mehrfach gewundener gefalteter Monopolantenne und entsprechende Verfahren
CA2638104A CA2638104C (fr) 2007-09-06 2008-09-05 Dispositif de communication sans fil mobile comprenant antenne unipolaire pliee a boucles multiples et methodes connexes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07115840A EP2034555B1 (fr) 2007-09-06 2007-09-06 Dispositif de communication mobile sans fil incluant une antenne unipolaire repliée à spires multiples et procédés associés

Publications (2)

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EP2034555A1 EP2034555A1 (fr) 2009-03-11
EP2034555B1 true EP2034555B1 (fr) 2011-01-19

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EP07115840A Not-in-force EP2034555B1 (fr) 2007-09-06 2007-09-06 Dispositif de communication mobile sans fil incluant une antenne unipolaire repliée à spires multiples et procédés associés

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EP (1) EP2034555B1 (fr)
AT (1) ATE496403T1 (fr)
CA (1) CA2638104C (fr)
DE (1) DE602007012101D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013028323A1 (fr) * 2011-08-23 2013-02-28 Apple Inc. Antennes cadres réparties

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Publication number Priority date Publication date Assignee Title
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CA2638104A1 (fr) 2008-11-12
DE602007012101D1 (de) 2011-03-03
CA2638104C (fr) 2010-08-17
ATE496403T1 (de) 2011-02-15

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