EP1701406B1 - Planarantenne mit modifizierbaren Masseflächedimensionen - Google Patents

Planarantenne mit modifizierbaren Masseflächedimensionen Download PDF

Info

Publication number
EP1701406B1
EP1701406B1 EP06290353A EP06290353A EP1701406B1 EP 1701406 B1 EP1701406 B1 EP 1701406B1 EP 06290353 A EP06290353 A EP 06290353A EP 06290353 A EP06290353 A EP 06290353A EP 1701406 B1 EP1701406 B1 EP 1701406B1
Authority
EP
European Patent Office
Prior art keywords
antenna
earth
radiation surface
aerial
radiation
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.)
Expired - Fee Related
Application number
EP06290353A
Other languages
English (en)
French (fr)
Other versions
EP1701406A1 (de
Inventor
Fernando Romao
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.)
Vallaroche SAS
Original Assignee
Sagem Mobiles SA
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 Sagem Mobiles SA filed Critical Sagem Mobiles SA
Publication of EP1701406A1 publication Critical patent/EP1701406A1/de
Application granted granted Critical
Publication of EP1701406B1 publication Critical patent/EP1701406B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the field of the invention is that of planar antennas having a ground plane and a flat surface said radiation surface which extends in parallel with the ground plane.
  • the invention relates more particularly to a planar antenna comprising means adapted to modify the dimensions of the portion of the ground plane which extends to the right of the radiation surface and thus forms a mass reference for said radiation surface.
  • Planar antennas are for example used as antennas integrated into the mobile telephony terminals.
  • planar antennas have the advantage of producing a lower near field than that produced by conventional antennas (whip, meander, helical type), while providing acceptable far-field radiation performance.
  • the volume of these planar antennas is greater than that of conventional antennas.
  • a dual-band patch antenna (900-1800 MHz) occupying a volume of 6 cm 3 offers radiation performance (far field) close to that of a non-patch antenna occupying a volume of 1 cm 3 , while presenting a lower bandwidth.
  • SAR synchrom for the Specific Absorption Rate designating the Specific Absorption Rate for quantifying the rate of absorption by biological tissues of electromagnetic energy coming from radiofrequencies
  • an antenna patch is clearly more powerful. It will be noted that the SAR is measured in transmission at the maximum power P MAX .
  • the document US 2005/0017905 proposes a patch antenna in which the spacing between the radiating surface and the ground plane can be modified.
  • planar antenna having increased performance both in terms of bandwidth, and in terms of radiation efficiency, and this while retaining the qualities of patch antennas in transmission at P MAX .
  • the invention aims to provide a planar antenna that meets this need.
  • the invention provides an antenna according to claim 1.
  • the invention also relates to a mobile telephone terminal according to claim 10.
  • the invention relates to a method of controlling an antenna according to claim 11.
  • a planar antenna 1 of patch type having a ground plane 2, and a flat surface 3 said radiation surface which extends in parallel with said ground plane, at a distance h thereof.
  • Part 4 of the ground plane extends to the right of the radiation surface and thus forms a mass reference for said radiation surface.
  • An electrically conductive wire 5 connects the radiating surface 3 to the ground plane 2, and is commonly referred to as the "ground return”.
  • a power line 6 adapted to be excited by an RF source is connected to the radiation surface 3. This line 6 is commonly referred to as the "RF attack”.
  • the antenna resonates at a resonant frequency, in particular the dimensions of the radiation surface (perimeter) and the distance h.
  • the patch antenna when the patch antenna operates without a ground plane (operation that can be simulated by an infinite distance h between the ground plane and the radiating surface), its bandwidth is similar to that of a non-patch antenna .
  • the increase in the volume of the antenna makes it possible to increase the bandwidth of the antenna.
  • this is accompanied by an increase in the size of the antenna which may be in contradiction with the constraints relating to its use in a mobile telephone terminal, and in any case goes against the trend towards increased miniaturization.
  • the radiation surface 3 may comprise, in a manner conventionally known per se, a through slot F designed to widen the bandwidth of the antenna by creating a second resonance (at a second resonance frequency depending in particular on the length of the slot ).
  • the figure 3 is another perspective view of the antenna 1 of the figure 1 .
  • the radiating surface 3 faces a complete ground plane (ie the ground reference has the same dimensions as the radiating surface).
  • the figure 4 is a diagram, obtained by simulation, representing the frequency response of the antenna of the figure 3 .
  • the figure 4 more precisely represents the attenuation in reflection (measured in terms of standing wave ratio TOS expressed in dB), that is to say the ability of the antenna to transmit as a function of frequency.
  • a TOS of -20 dB corresponds to losses by mismatch representing 1% of the power (ie an overall efficiency of the antenna equal to 99%); a TOS of -10 dB corresponds to losses representing 10% of the power (ie an overall efficiency of the antenna of 90%); a TOS of -5 dB corresponds to losses representing approximately 32% of the power (ie a yield of the order of 68%); a TOS of - 3 dB corresponds to losses representing approximately 50% of the power (ie a yield of the order of 50%, half of the power attacking the antenna never being radiated).
  • this figure 4 just like the figures 6 , 10a , 10b which will be discussed below, are simulation results.
  • a correction coefficient must be applied to these simulation results to show the real behavior of the antenna, in particular to take into account the scale factor, or the presence of materials with a strong dielectric constant (for example plastic material such as the shell of a telephony terminal).
  • a first resonance is observed, for a TOS of -5 dB, between the frequencies 1.1 GHZ and 1.25 GHz.
  • the width ⁇ f of this resonance (low frequency band) is 140 MHz.
  • the relative width or quality factor ⁇ f / f of this resonance is 12%.
  • a second resonance is observed, for a TOS of -5dB, between the frequencies 2 GHZ and 2.15 GHz.
  • the width of this resonance (high frequency band) is 150 MHz.
  • This second resonance originates from the slot F; and its relative width or quality factor is 7%.
  • the figure 5 is a perspective view of a patch antenna 100 for which there is (almost) no mass reference for the radiation surface 103.
  • the geometry of the ground plane 102 has been modified so that the radiating surface no longer has a portion of the ground plane vis-à-vis. In other words, the dimensions of the mass reference for the radiation surface have been reduced, until the said mass reference has practically disappeared.
  • the figure 6 is a diagram representing the frequency response of the antenna of the figure 5 .
  • the behavior of the patch antenna is indeed close to that of a non-patch antenna.
  • FIGS 7, 8 and 9 represent front views of different patch antenna configurations.
  • the figure 7 is a top view of an antenna similar to that of the figure 3 (a slot F 'opening here on the side of the points of return of mass and of attack RF), for which one has a complete reference of mass for the surface of radiation.
  • the figure 8 is a top view of an antenna 200 for which there is a partial mass reference for the radiation surface 203.
  • the dimensions of the mass reference have indeed been reduced compared to those of the figure 7 , so that the upper part (here 4 mm band) of the radiating surface has no mass reference.
  • the figure 9 is a top view of an antenna 300 for which there is also a partial mass reference for the radiation surface 303.
  • the dimensions of the mass reference have here been reduced so that a lateral part right (here 18 mm band) of the radiation surface has no mass reference.
  • the slot F 'always has a mass reference.
  • the figures 10a and 10b are diagrams representing the frequency responses of the antennas of Figures 7, 8 and 9 . More specifically, the figure 10a allows to compare the frequency responses of the antennas Figures 7 and 8 (complete mass reference, partial mass reference, reduced at the top). The figure 10b For its part, it makes it possible to compare the frequency responses of the antennas of figures 7 and 9 (complete mass reference, partial mass reference, reduced to the right).
  • a correction coefficient (here equal to 0.76) is applied to the simulated values to obtain corrected values representative of the actual conditions of use.
  • This correction coefficient is calculated by realizing the ratio between the central GSM transmit frequency (897.5 MHz) and the central resonant frequency of the simulated "Full Patch" antenna (1187.5 MHz).
  • the relative width of the bandwidth of the "Full Patch” antenna is here 14.7%; that of the "Partial Patch” antenna is 19.9%, ie an increase in the order of + 35% of the bandwidth.
  • the present invention thus proposes to reconfigure the antenna in order to modify the radioelectric characteristics, and this by modifying the dimensions of the part of the mass reference ground plane for the radiating surface.
  • an antenna 10 according to a possible embodiment of the present invention.
  • the antenna comprises a ground plane above which extends a radiation surface 12.
  • a ground return 13 makes it possible to connect the radiation surface to the ground plane.
  • the radiating surface is fed by an RF attack 14.
  • the ground plane is formed of a first surface 11a grounded and connected to the radiation surface by the ground return 13.
  • a second surface 11b is separated from the first surface 11a by switchable junctions 15.
  • the surfaces 11a, 11b are arranged in such a way that the radiating surface 12 faces a portion of the first surface 11a and a portion of the second surface 11b.
  • junctions 15 when the junctions 15 are busy, a plan is defined mass consisting of said first and second surfaces 11a, 11b.
  • the radiation surface then has a complete mass reference.
  • a ground plane consists of only said first surface 11 a.
  • the radiating surface then only has a partial mass reference constituted by the portion of the first surface 11a at the right of said radiating surface.
  • the radiating surface 12 may further comprise a slot F open.
  • the slot F opens on the side of the ground return points 13 and RF drive 14.
  • the antenna 10 includes means for controlling the junctions 15 to switch said junctions between a run mode operation and an operation or blocked mode.
  • the switchable junctions 15 may be field effect switches, MEMS switches, pin diode switches, and so on.
  • This switch is designed to perform a switch function between a first port RF1 (for example on the first surface 11a) and a second port RF2 (for example on the second surface 11b), the switching (opening, closing) of the The switch is controlled by the voltage at a control port Pc.
  • a voltage of 1 Volt on the control port Pc thus makes it possible to connect the ports RF1 and RF2 by an almost perfect short-circuit, while a voltage of 0Volt on the PC control port makes it possible to connect the ports RF1 and RF2 by an almost perfect open circuit.
  • the port Pc thus acts here as control means to electrically connect or not between them the first and second surfaces 11a, 11b.
  • the ports RF1 and RF2 are interconnected by an electrical connection L having in series a first RF coupling capacitance Cc1, a diode Pin Dp and a second RF coupling capacitance Cc2.
  • a first shock inductor S1 is interposed between the ground and the point of the link L located between the diode Dp and the second capacitor Cc2.
  • a second shock inductor S2 is interposed between the control port Pc (connected to ground via an RF decoupling capacitor Cd) and the point of the link L located between the first capacitor Cc1 and the diode Dp.
  • control means can be controlled so that the antenna 10 adopts a first configuration in the transmission phase, and a second configuration in the reception phase.
  • the junction control means in the transmission phase, it is possible to control the junction control means so that they operate in the on mode.
  • the antenna then behaves like a conventional patch antenna, which allows in particular to ensure a low level of SAR.
  • the junction control means can be controlled so that they operate in blocked mode.
  • the antenna then operates with a partial mass reference for the radiating surface. Its behavior then approaches that of a conventional non-patch antenna, which makes it possible to obtain increased performances in terms of bandwidth and radiation efficiency.
  • the invention is not limited to the use of switchable junctions between the surfaces forming the plane of mass, but extends to any means for modifying the dimensions of the mass reference portion for the radiating surface.
  • the skilled person may choose to separately control the potential of each of the surfaces forming the ground plane.
  • the antenna comprises a ground plane formed as previously of a first surface 21a to ground and connected to a radiation surface (here divided into two radiation zones 22a, 22b) by a ground return 23.
  • a second surface 21b is separated from the first part by switchable junctions 25 capable of electrically connecting or not said first and second surfaces 21a, 21b between them.
  • the second surface 21b is dimensioned as the radiation surface, so that in operation of the junction mode 25, there is no ground reference for the radiation surface.
  • a first mode of operation of the antenna 20 is that of a conventional patch antenna (junctions 25 pass and full reference mass).
  • a second mode of operation of the antenna 20 is similar to that of a non-patch antenna (blocked junctions and no ground reference for the radiation surface).
  • the radiation surface has a slot
  • the slot would be inoperative and one would not obtain high frequency bandwidth.
  • the radiation surface may be formed of two radiation zones 22a, 22b separated by a switchable junction 26 adapted to electrically connect or not said zones 22a, 22b with each other so as to resonance all or part of the radiation surface. Indeed, when the junction 26 provides an electrical connection of the zones 22a and 22b, the radiation surface has a first perimeter. A first frequency band is then reached, a radiofrequency current flowing over the periphery of the radiation surface consisting of zones 22a and 22b.
  • the radiation surface consists only of the zone 22a and therefore has a second perimeter, less than said first perimeter. A second frequency band is then reached, a radiofrequency current flowing over the periphery of the radiation surface then consisting solely of the zones 22a.
  • the value and / or the number of the radiation frequency bands can be modified, in particular as a function of the applications considered.
  • two radiation zones 22a, 22b adapted to ensure operation of the antenna in two frequency bands, such as a frequency band at around 900 MHz (preferably that of the GSM, in particular from 880 MHz to 960 MHz), and a frequency band around 1800 MHz (preferably that of the DCS system or "Digital Communication System", in particular from 1710 MHz to 1990 MHz).
  • a frequency band at around 900 MHz preferably that of the GSM, in particular from 880 MHz to 960 MHz
  • a frequency band around 1800 MHz preferably that of the DCS system or "Digital Communication System", in particular from 1710 MHz to 1990 MHz.
  • junction 26 will of course be driven to ensure operation on one or the other of the frequency bands, for example depending on the applications envisaged.
  • the antenna configuration presented on the figure 12 offers a first operating mode of the conventional patch antenna type (complete ground reference), and a second operating mode in which the antenna operates without a mass reference for the radiation surface.
  • such an antenna configuration is also advantageously applicable in certain types of mobile terminals.
  • conventional antennas are particularly sensitive to the presence of metal elements.
  • the ground plane of the patch antenna is likely to disrupt the operation of the conventional antenna.
  • terminals of the type "clam” 360 ° comprising an upper portion 30 carrying the screen 31 and a patch-type antenna, and a lower portion 40 carrying the keyboard 41 and a conventional type of antenna (for example an antenna adapted to DVB-H digital terrestrial television standard , or "Digital Video Broadcasting: Handhelds").
  • a conventional type of antenna for example an antenna adapted to DVB-H digital terrestrial television standard , or "Digital Video Broadcasting: Handhelds"
  • the terminal When the terminal is closed, the lower and upper parts are brought back on one another, the screen then being positioned vis-à-vis the keyboard.
  • the terminal can also adopt an extreme open position, in which the outer faces of the upper and lower parts are brought together, the screen and the keyboard being then accessible from the outside.
  • the ground plane of the patch antenna is located close to the conventional antenna and is therefore likely to alter its operation.
  • the adoption of an antenna according to the present invention in place of the conventional patch antenna overcomes this disadvantage.
  • the means of the antenna for modifying the dimensions of the portion of the ground plane vis-à-vis the radiating surface are in such a case and so ordered for the antenna to operate in a mode of operation without reference of mass for the radiating surface, when the terminal is positioned by the user in said extreme open position.
  • the means for modifying the dimensions of the part of the mass reference ground plane for the radiating surface are here activated according to information (extreme open position or not) relative to the arrangement of said terminal.
  • terminals comprising patch type antennas whose ground plane and the surface of radiation are carried by distinct elements of the terminal, may be moved relative to each other.
  • Figures 13b and 13c two examples of mobile terminals of this type having a rear portion 50 carrying the radiation surface and a front portion 60 carrying the screen 61 and the ground plane.
  • the rear portion 50 can be rotated about an axis A perpendicular to the main surface of the telephone (for example screen surface) and passing generally in the center of the terminal so that the radiating surface has no plan mass vis-à-vis.
  • the adoption of an antenna according to the present invention in place of the conventional patch antenna makes it possible to ensure the operation of the terminal in the open position (front and rear parts offset with respect to each other, like this is represented on the Figures 13b and 13c ).
  • the means of the antenna for modifying the dimensions of the portion of the ground plane vis-à-vis the radiating surface are in such a case controlled for the antenna to operate in a mode of operation without reference of mass for the radiation surface, when the terminal is positioned by the user in said open position.
  • the means for modifying the dimensions of the part of the mass reference ground plane for the radiating surface are here also activated as a function of information (open position or not) relating to the arrangement of said terminal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)

Claims (11)

  1. Antenne (10, 12), aufweisend eine Masseebene (11a, 11b, 21a, 21b), eine ebene Abstrahlfläche (12, 22a, 22b), die sich parallel zur Masseebene erstreckt, wobei ein Abschnitt der Masseebene gegenüber der Abstrahlfläche verläuft und eine Bezugsmasse für die Abstrahlfläche bildet, und Einrichtungen (15, 25), um die Abmessungen des Abschnitts, der die Bezugsmasse bildet, zu modifizieren, wobei die Einrichtungen steuerbar sind, damit die Antenne eine erste Konfiguration annimmt, gemäß der die Abstrahlfläche über eine vollständige Bezugsmasse verfügt, um in einem ersten Frequenzband in Resonanz zu sein, oder eine zweite Konfiguration, gemäß der die Abstrahlfläche über eine Teilbezugsmasse verfügt, um in einem zweiten Frequenzband in Resonanz zu sein, das breiter als das erste Frequenzband ist, wobei die Masseebene eine erste Fläche (11a, 21a) aufweist, die mit der Masse und wenigstens einer zweiten Fläche (11b, 21b) verbunden ist, und wobei die erste und die zweite Fläche durch wenigstens eine umschaltbare Verbindung (15, 25) verbindbar sind, dadurch gekennzeichnet, dass die Abstrahlfläche einen Mündungsschlitz (F) aufweist, der in Höhe eines Abschnitts der Abstrahlfläche ausgebildet ist, gegenüber dem sich die zweite Fläche (11b, 21 b) nicht erstreckt, so dass der Schlitz ständig über eine Bezugsmasse verfügt.
  2. Antenne nach Anspruch 1, dadurch gekennzeichnet dass die Einrichtungen zum Modifizieren des Abschnitts, der die Bezugsmasse bildet, vorgesehen sind, um von der Masseebene die gesamte Fläche oder einen Teil der Fläche der Masseebene, die gegenüber der Abstrahlfläche verläuft, abzutrennen.
  3. Antenne nach einem der vorhergehenden Ansprüche, bei der die zweite Fläche gegenüber wenigstens einem Abschnitt der Abstrahlfläche (12, 22a, 22b) verläuft, wobei die Einrichtungen zum Modifizieren der Abmessungen des Abschnitts, der die Bezugsmasse bildet, Steuereinrichtungen (Pc) der umschaltbaren Verbindung sind, die vorgesehen ist, um die zweite Fläche (11 b, 21 b) von der ersten Fläche (11 a, 21 a) abzutrennen.
  4. Antenne nach einem der vorhergehenden Ansprüche, bei der die zweite Fläche (11b) derart bemessen ist, dass sie gegenüber nur einem Abschnitt der Abstrahlfläche (12) verläuft, so dass die Abstrahlfläche über eine vollständige Bezugsmasse oder eine Teilbezugsmasse verfügt.
  5. Antenne nach Anspruch 3, bei der die zweite Fläche (21 b) derart bemessen ist, dass die Abstrahlfläche über eine vollständige Bezugsmasse oder keine Bezugsmasse verfügt.
  6. Antenne nach einem der vorhergehenden Ansprüche, bei der die Abstrahlfläche eine erste (22a) und wenigstens eine zweite Abstrahlzone (22b) aufweist, die mit der ersten Zone (22a) durch wenigstens eine umschaltbare Verbindung (26) verbunden ist, wobei Steuereinrichtungen der Verbindung (26) vorgesehen sind, um die Abmessungen der Abstrahlfläche durch Abtrennen der zweiten Zone (22b) von der ersten Zone (22a) zu modifizieren.
  7. Antenne nach einem der vorhergehenden Ansprüche, bei der die Einrichtungen zum Abtrennen von der Masseebene die gesamte Fläche oder einen Teil der Fläche der Masseebene, die gegenüber der Abstrahlfläche verläuft, aktiviert werden, um die Abmessungen zu reduzieren, wenn die Antenne in der Empfangsphase ist.
  8. Antenne nach einem der Ansprüche 1 bis 6, integriert in ein Mobiltelefonterminal, in dem die Einrichtungen zum Abtrennen in Abhängigkeit von einer Information betätigt werden, die sich auf den Aufbau des Terminals bezieht.
  9. Mobiltelefonterminal, gekennzeichnet durch eine Antenne nach einem der Ansprüche 1 bis 8.
  10. Verfahren zur Steuerung einer Antenne nach einem der Ansprüche 1 bis 8, bei dem Einrichtungen zum Modifizieren der Abmessungen des Abschnitts, der die Bezugsmasse bildet, gesteuert werden, damit die Antenne eine erste Konfiguration annimmt, gemäß der die Abstrahlfläche über eine vollständige Bezugsmasse verfügt, um in einem ersten Frequenzband in Resonanz zu sein, oder eine zweite Konfiguration, gemäß der die Abstrahlfläche über eine Teilbezugsmasse verfügt, um in einem zweiten Frequenzband in Resonanz zu sein, das breiter als das erste Frequenzband ist, wobei die Masseebene eine erste Fläche (11a, 21a) hat, die mit Masse verbunden ist, und wenigstens eine zweite Fläche (11 b, 21 b), wobei die erste und die zweite Fläche durch wenigstens eine umschaltbare Verbindung (15, 25) verbindbar sind, und wobei die Einrichtungen zum Modifizieren der Abmessungen der Bezugsmasse aktiviert werden, um die Abmessungen zu reduzieren, wenn die Masse in der Empfangsphase ist oder in Abhängigkeit von einer Information, die sich auf den Aufbau eines Mobiltelefonterminals bezieht, in das die Antenne integriert ist.
EP06290353A 2005-03-02 2006-03-02 Planarantenne mit modifizierbaren Masseflächedimensionen Expired - Fee Related EP1701406B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0502102A FR2882854B1 (fr) 2005-03-02 2005-03-02 Perfectionnement aux antennes planaires

Publications (2)

Publication Number Publication Date
EP1701406A1 EP1701406A1 (de) 2006-09-13
EP1701406B1 true EP1701406B1 (de) 2010-07-28

Family

ID=34955019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06290353A Expired - Fee Related EP1701406B1 (de) 2005-03-02 2006-03-02 Planarantenne mit modifizierbaren Masseflächedimensionen

Country Status (4)

Country Link
EP (1) EP1701406B1 (de)
DE (1) DE602006015732D1 (de)
ES (1) ES2349108T3 (de)
FR (1) FR2882854B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101765943B (zh) * 2007-06-22 2012-11-28 诺基亚公司 天线布置
GB0816760D0 (en) * 2008-09-12 2008-10-22 Univ Birmingham Multifunctional antenna
CN101719584B (zh) 2009-12-24 2013-08-28 华为终端有限公司 可重构手机内置天线及其实现方法
KR20130038515A (ko) 2011-10-10 2013-04-18 삼성전자주식회사 휴대단말기, 및 휴대단말기의 안테나 방사성능 및 전자파흡수율 개선방법
CN105322289A (zh) * 2015-11-25 2016-02-10 电子科技大学 一种新型rfid圆极化天线

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030193437A1 (en) * 2002-04-11 2003-10-16 Nokia Corporation Method and system for improving isolation in radio-frequency antennas

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7048300A (en) * 1999-09-10 2001-04-17 Avantego Ab Antenna arrangement
US6844852B1 (en) * 2003-03-31 2005-01-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Microelectromechanical systems actuator based reconfigurable printed antenna
US6906680B2 (en) * 2003-07-24 2005-06-14 Harris Corporation Conductive fluid ground plane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030193437A1 (en) * 2002-04-11 2003-10-16 Nokia Corporation Method and system for improving isolation in radio-frequency antennas

Also Published As

Publication number Publication date
FR2882854A1 (fr) 2006-09-08
ES2349108T3 (es) 2010-12-28
FR2882854B1 (fr) 2007-05-11
DE602006015732D1 (de) 2010-09-09
EP1701406A1 (de) 2006-09-13

Similar Documents

Publication Publication Date Title
EP3669422B1 (de) Patch-antenne mit zwei verschiedenen strahlungsmodi mit zwei getrennten arbeitsfrequenzen, vorrichtung mit einer solchen antenne
EP1305845B9 (de) Planare antenne für mobilfunkgeräte
FR2724793A1 (fr) Antenne a composants multiples et methode de realisation de celle-ci
WO2002007261A1 (fr) Antenne planaire multibandes
EP1701406B1 (de) Planarantenne mit modifizierbaren Masseflächedimensionen
FR2724771A1 (fr) Antenne a dipole repliable a deux positions
WO2002101874A1 (fr) Antenne compacte multibande
EP1407512A1 (de) Antenne
EP1699108B1 (de) Antenne mit schaltbaren strahlenden planar Elementen und Kommunikationsterminal mit denselben
EP0934608B1 (de) Antennensystem für tragbares funkgerät
EP1922783B1 (de) Kompakte mehrbandantenne
EP1577975B1 (de) Zweiteiliges Telefon mit Planar-Antenne
FR2724772A1 (fr) Antenne en ruban a positions multiples et methode de realisation de celle-ci
EP1750325B1 (de) Multiband-Antenne
CA2706761C (fr) Antenne a reflecteur a flexibilite de couverture et de frequence et satellite comportant une telle antenne
EP1548877B1 (de) Multibandantenne mit planaren Strahlerflächen und tragbares Telefon mit einer derartigen Antenne
EP1808930B1 (de) Mobiltelefon beinhaltend eine integrierte Antenne mit ausreichender Entfernung zum Kopf des Anwenders
EP1667281A1 (de) Mobiles Kommunikationsendgerät
EP1695413A2 (de) Antenne für ein funkkommunikationsendgerät
EP1715597B1 (de) Antenne mit planaren strahlenden Flächen mit Umschalt-Schaltkreis
EP1548881B1 (de) Planare Antenne für Mobilfunkgeräte
FR2816114A1 (fr) Antenne multibande
FR2889361A1 (fr) Antenne du type a surface(s) rayonnante(s) plane(s) commutable(s) et terminal de communication mobile comportant cette antenne
FR2891666A1 (fr) Antenne multibande compacte
WO2009040403A1 (fr) Antenne compacte et accordable pour terminal d'émission et/ou de réception

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20061023

17Q First examination report despatched

Effective date: 20061122

AKX Designation fees paid

Designated state(s): DE ES GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAGEM MOBILES

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAGEM MOBILES

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 602006015732

Country of ref document: DE

Date of ref document: 20100909

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Effective date: 20101215

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20110429

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602006015732

Country of ref document: DE

Effective date: 20110429

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006015732

Country of ref document: DE

Representative=s name: PATENT- UND RECHTSANWAELTE BARDEHLE PAGENBERG, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602006015732

Country of ref document: DE

Owner name: APPLE INC., CUPERTINO, US

Free format text: FORMER OWNER: SAGEM MOBILES, PARIS, FR

Effective date: 20111026

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006015732

Country of ref document: DE

Representative=s name: BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANW, DE

Effective date: 20111026

Ref country code: DE

Ref legal event code: R081

Ref document number: 602006015732

Country of ref document: DE

Owner name: APPLE INC., US

Free format text: FORMER OWNER: SAGEM MOBILES, PARIS, FR

Effective date: 20111026

REG Reference to a national code

Ref country code: GB

Ref legal event code: S117

Free format text: REQUEST FILED; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 27 OCTOBER 2011

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20120614 AND 20120620

REG Reference to a national code

Ref country code: GB

Ref legal event code: S117

Free format text: CORRECTIONS ALLOWED; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 27 OCTOBER 2011 ALLOWED ON 28 APRIL 2012

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190219

Year of fee payment: 14

Ref country code: GB

Payment date: 20190227

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602006015732

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200302

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20220210

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20220405

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230303

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20240426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230302

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230303