EP1421648B1 - Antenne de protection electromagnetique pour emetteur portable - Google Patents
Antenne de protection electromagnetique pour emetteur portable Download PDFInfo
- Publication number
- EP1421648B1 EP1421648B1 EP02754973A EP02754973A EP1421648B1 EP 1421648 B1 EP1421648 B1 EP 1421648B1 EP 02754973 A EP02754973 A EP 02754973A EP 02754973 A EP02754973 A EP 02754973A EP 1421648 B1 EP1421648 B1 EP 1421648B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- central
- point
- loops
- electromagnetic protection
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
Definitions
- the present invention relates to an electromagnetic protection antenna for portable transmitter, for example a mobile phone, and more particularly such an antenna comprising two substantially flanges planes symmetrical about a point where they intersect in isolation electrically, to ensure a phase difference between the two loops.
- the present invention aims to provide an antenna of the aforementioned type of more great efficiency.
- the invention relates to a protective antenna electromagnetic for mobile transmitter, of the type comprising two loops substantially plane symmetrical about a point where they intersect electrically isolated, characterized in that a central antenna is arranged inside each of the loops, each central antenna having a shape substantially homothetic to that of the respective loop exterior.
- each central antenna has dimensions substantially half that of the respective outer loop.
- each central antenna forms an open loop.
- each central antenna is electrically connected to the respective loop by a connecting section.
- each of said connecting sections can be oriented by radially with respect to the point of symmetry.
- each of the antennas central units may be located substantially opposite the point of contact of said central antenna with said link section.
- an antenna 1 composed of two circular loops 2 and 3 intersecting at a point 4 with respect to which they are symmetrical. The crossing of the two loops in point 4 is carried out so that the two branches are electrically insulated.
- central antenna 5 and 6 Inside each loop 2 and 3 is arranged a central antenna 5 and 6 respectively.
- the central antennas 5 and 6 are also circular and their diameter is substantially equal to half the diameter of loops 2 and 3.
- Each central antenna 5 and 6 is open at a point 7 and 8 respectively, which is here the point of each antenna closest to crossing point 4. Consequently, points 4, 7 and 8 are aligned here.
- FIG. 2 differs from that of FIG. 1 by the fact that each central antenna 5 and 6 is electrically connected to the loop at the interior of which it is arranged, by a connecting section 9 and 10 respectively.
- the link sections 9 and 10 are here rectilinear and are aligned with the point crossing point 4. Consequently, the connecting sections 9 and 10 are connected to the central antennas 5 and 6 at their point opposite their opening point 7 and 8 respectively.
- antenna loops and therefore central, circular antennas. Any other form of closed antenna could of course be considered, for example square, triangular or in diamonds.
- All the antenna wires can be produced for example by depositing copper, in any known manner, on a flat support provided with an adhesive allowing to fix it on a portable electromagnetic transmitter, for example a mobile phone, or any other type of transmitter.
Description
- La figure 1 est une vue en plan d'une antenne selon un premier mode de réalisation de l'invention.
- La figure 2 est une vue en plan d'un autre mode de réalisation.
Claims (6)
- Antenne de protection électromagnétique pour émetteur mobile, du type comportant deux boucles (1, 2) sensiblement planes symétriques par rapport à un point (4) où elles se croisent de façon isolée électriquement, caractérisée par le fait qu'une antenne centrale (5, 6) est disposée à l'intérieur de chacune des boucles, chaque antenne centrale ayant une forme sensiblement homothétique à celle de la boucle respective.
- Antenne selon revendication 1, dans laquelle chaque antenne centrale a des dimensions sensiblement moitié de celle de la boucle respective.
- Antenne selon l'une quelconque des revendications 1 et 2, dans laquelle chaque antenne centrale forme une boucle ouverte.
- Antenne selon l'une quelconque des revendications 1 à 3, dans laquelle chaque antenne centrale est reliée électriquement à la boucle respective par un tronçon de liaison (9, 10).
- Antenne selon la revendication 4, dans laquelle chacun desdits tronçons de liaison est orienté de façon radiale par rapport au point de symétrie.
- Antenne selon l'ensemble des revendications 3 et 4, dans laquelle l'ouverture (7, 8) de chacune des antennes centrales est située sensiblement à l'opposé du point de contact de ladite antenne centrale avec ledit tronçon de liaison.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02754973T DK1421648T3 (da) | 2001-07-02 | 2002-07-02 | Elektromagnetisk beskyttelsesantenne for bærbar sender |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0108726A FR2826784B1 (fr) | 2001-07-02 | 2001-07-02 | Antenne de protection electromagnetique pour emetteur portable |
FR0108726 | 2001-07-02 | ||
PCT/EP2002/008675 WO2003005487A1 (fr) | 2001-07-02 | 2002-07-02 | Antenne de protection electromagnetique pour emetteur portable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1421648A1 EP1421648A1 (fr) | 2004-05-26 |
EP1421648B1 true EP1421648B1 (fr) | 2004-12-15 |
Family
ID=8865009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02754973A Expired - Lifetime EP1421648B1 (fr) | 2001-07-02 | 2002-07-02 | Antenne de protection electromagnetique pour emetteur portable |
Country Status (8)
Country | Link |
---|---|
US (1) | US6894658B2 (fr) |
EP (1) | EP1421648B1 (fr) |
AT (1) | ATE285128T1 (fr) |
DE (1) | DE60202304T2 (fr) |
ES (1) | ES2235070T3 (fr) |
FR (1) | FR2826784B1 (fr) |
PT (1) | PT1421648E (fr) |
WO (1) | WO2003005487A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2860106B1 (fr) * | 2003-09-23 | 2006-03-17 | Garcia Abel Franco | Dispositif de protection des personnes vis a vis des ondes electromagnetiques |
FR2888050A1 (fr) * | 2005-06-30 | 2007-01-05 | Pierrette Wehrlen | Systeme d'antennes passives de protection biologique |
FR2890243B1 (fr) * | 2005-08-24 | 2007-11-09 | Garcia Abel Franco | Dispositif multidephaseur de protection des personnes vis a vis des ondes electromagnetiques. |
FR2923324B1 (fr) * | 2007-11-05 | 2010-09-10 | Commissariat Energie Atomique | Antenne inductive large bande pour systemes de communication sans contact |
FR2980045B1 (fr) | 2011-09-12 | 2014-03-07 | Garcia Abel Franco | Dispositif multi-dephaseur pour la protection des personnes contre les ondes electromagnetiques |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3605104A (en) * | 1969-08-19 | 1971-09-14 | Us Army | Parasitic loop counterpoise antenna |
US3971031A (en) * | 1975-10-31 | 1976-07-20 | Burke Emmett F | Loaded quad antenna |
JPS5843604A (ja) * | 1981-09-09 | 1983-03-14 | Japan Radio Co Ltd | アンテナ素子 |
US4809009A (en) * | 1988-01-25 | 1989-02-28 | Grimes Dale M | Resonant antenna |
US5826178A (en) * | 1996-01-29 | 1998-10-20 | Seiko Communications Systems, Inc. | Loop antenna with reduced electrical field sensitivity |
GB2315602B (en) * | 1996-07-23 | 2000-11-29 | Motorola Inc | Loop antenna |
FR2781088B1 (fr) * | 1998-07-08 | 2000-10-20 | Roland Wehrlen | Dispositif d'antennes passives dephasees adaptables exterieurement ou interieurement pour telephones h.f portables pour la protection electromagnetique h.f des utilisateurs |
-
2001
- 2001-07-02 FR FR0108726A patent/FR2826784B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-02 US US10/482,290 patent/US6894658B2/en not_active Expired - Fee Related
- 2002-07-02 EP EP02754973A patent/EP1421648B1/fr not_active Expired - Lifetime
- 2002-07-02 PT PT02754973T patent/PT1421648E/pt unknown
- 2002-07-02 WO PCT/EP2002/008675 patent/WO2003005487A1/fr not_active Application Discontinuation
- 2002-07-02 DE DE60202304T patent/DE60202304T2/de not_active Expired - Fee Related
- 2002-07-02 AT AT02754973T patent/ATE285128T1/de not_active IP Right Cessation
- 2002-07-02 ES ES02754973T patent/ES2235070T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2235070T3 (es) | 2005-07-01 |
DE60202304D1 (de) | 2005-01-20 |
FR2826784A1 (fr) | 2003-01-03 |
ATE285128T1 (de) | 2005-01-15 |
EP1421648A1 (fr) | 2004-05-26 |
PT1421648E (pt) | 2005-05-31 |
WO2003005487A1 (fr) | 2003-01-16 |
US20040201540A1 (en) | 2004-10-14 |
FR2826784B1 (fr) | 2003-10-31 |
DE60202304T2 (de) | 2006-03-02 |
US6894658B2 (en) | 2005-05-17 |
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