EP1456905B1 - Einrichtung zur überwachung der sendeantennen von elektromagnetischen detektionssystemen - Google Patents

Einrichtung zur überwachung der sendeantennen von elektromagnetischen detektionssystemen Download PDF

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Publication number
EP1456905B1
EP1456905B1 EP02805395A EP02805395A EP1456905B1 EP 1456905 B1 EP1456905 B1 EP 1456905B1 EP 02805395 A EP02805395 A EP 02805395A EP 02805395 A EP02805395 A EP 02805395A EP 1456905 B1 EP1456905 B1 EP 1456905B1
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EP
European Patent Office
Prior art keywords
amplifier
bridge
transmission
branches
antenna element
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Expired - Lifetime
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EP02805395A
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English (en)
French (fr)
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EP1456905A1 (de
Inventor
François SCHMIDT
Daniel Heyden
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Exaqt SA de CV
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Exaqt SA de CV
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    • 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
    • H01Q7/04—Screened antennas
    • 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

Claims (7)

  1. Einrichtung zur Steuerung der Sendeantennen von elektromagnetischen Detektionssystemen bei einem Detektionssystem mit Daueremission, die mindestens eine Sendeantenne und mindestens eine Empfangsantenne uinfasst, wobei die oder jede Sendeantenne von einem elektronischen Leistungsverstärker gespeist wird und wobei die oder jede Empfangsantenne mit einem Kompensationskreis verbunden ist, dadurch gekennzeichnet, dass sie aus folgenden Elementen zusammengesetzt ist:
    mindestens einer Sendeantenne (4) im eigentlichen Sinn, die nicht auf eine bestimmte Frequenz abgestimmt ist,
    mindestens einem vereinfachten Leistungsverstärker (6), der mit der Einstellung "Ein oder Aus" funktioniert und der ein "H-Brücken"-Verstärker oder ein "Halbbrücken"- oder ein "Viertelbrücken"-Verstärker ist, wobei das oder jedes Sendeantennen-Element (4) direkt an diesen Leistungsverstärker (6) gekoppelt ist, und
    mindestens einem elektronischen Speisestromkreis (9), dessen Ausgang mit dem Leistungsverstärker (6) verbunden ist.
  2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der oder jeder Sendeverstärker (6) ein "H-Brücken"-Verstärker mit vier Zweigen ist, wobei jeder Zweig ein aktives Umschaltelement (11) und ein passives Rückspeisungselement (12) umfasst, die parallel angeordnet sind, und wobei die vier Zweige mit Versorgungsleitungen (13) verbunden sind, und ihre Umschaltelemente (11) ebenfalls über Steuerstufen (14) mit einer elektronischen Stufe (15) für die Formung der Steuersignale verbunden sind.
  3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der oder jeder Sendeverstärker (6) ein "H-Halbbrücken"-Verstärker mit vier Zweigen ist, von denen zwei ein aktives Umschaltelement (11) und ein passives Rückspeisungselement (12) umfassen, die parallel angeordnet sind, während die zwei anderen Zweige von mindestens einem Kondensator (16) und/oder von mindestens einer Versorgungsleitung (13, 17) gebildet werden, wobei die Umschaltelemente (11) der beiden ersten Zweige über mindestens eine Steuerstufe (14) mit einer elektronischen Stufe (15) für die Formung der Steuersignale verbunden sind.
  4. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der oder jeder Sendeverstärker ein Verstärker in Form einer "Viertel-H-Brücke" mit vier Zweigen ist, von denen nur einer ein aktives Umschaltelement (11) und ein passives Rückspeisungselement (12) umfasst, die parallel angeordnet sind, während die anderen Zweige von mindestens einem Kondensator und/oder von mindestens einer Versorgungsleitung gebildet werden, wobei das Umschaltelement (11) des ersten Zweiges über eine Steuerstufe mit einer elektronischen Stufe für die Formung der Steuersignale verbunden ist.
  5. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der oder jeder Sendeverstärker (6) vorgesehen ist, um in dem Sendeantennen-Element (4), das mit diesem Verstärker (6) direkt gekoppelt ist, einen Strom (I) in im wesentlichen "dreieckiger" Form fließen zu lassen, wobei die Spannung (V) in demselben Sendeantennen-Element (4) den Verlauf eines "Rechteck"-Signals hat.
  6. Einrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der in dem oder in jedem Sendeantennen-Element (4) zirkulierende Strom (I), also das von diesem Antennen-Element (4) ausgehende elektromagnetische Feld, in der Frequenz und/oder der Phase und/oder der Amplitude moduliert wird.
  7. Einrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der oder jeder Kompensationskreis (9), der das von einem Empfangsantennen-Element (5) abgegebene Signal (R) empfängt, einen Stromkreis (18) für die Adaptation und die Verstärkung, Kondensatoren (19, 20, 21), Induktivitäten (22, 23, 24, 25) und Umschalter (26, 27) umfasst, die so angeordnet sind, dass sie die Transienten-Signale abschwächen, die im Empfangsantennen-Element (5) erzeugt werden.
EP02805395A 2001-12-21 2002-12-17 Einrichtung zur überwachung der sendeantennen von elektromagnetischen detektionssystemen Expired - Lifetime EP1456905B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0116766A FR2834132B1 (fr) 2001-12-21 2001-12-21 Dispositif pour le pilotage des antennes d'emission des systemes de detection electromagnetiques
FR0116766 2001-12-21
PCT/FR2002/004400 WO2003055005A1 (fr) 2001-12-21 2002-12-17 Dispositif pour le pilotage des antennes d'émission des systèmes de détection électromagnétiques

Publications (2)

Publication Number Publication Date
EP1456905A1 EP1456905A1 (de) 2004-09-15
EP1456905B1 true EP1456905B1 (de) 2005-07-27

Family

ID=8870916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02805395A Expired - Lifetime EP1456905B1 (de) 2001-12-21 2002-12-17 Einrichtung zur überwachung der sendeantennen von elektromagnetischen detektionssystemen

Country Status (17)

Country Link
US (2) US20050095983A1 (de)
EP (1) EP1456905B1 (de)
JP (1) JP4095964B2 (de)
CN (1) CN100452101C (de)
AT (1) ATE300792T1 (de)
AU (1) AU2002364661A1 (de)
CA (1) CA2470160A1 (de)
DE (1) DE60205277T2 (de)
ES (1) ES2247426T3 (de)
FR (1) FR2834132B1 (de)
HU (1) HU226181B1 (de)
IL (2) IL162453A0 (de)
MX (1) MXPA04005842A (de)
PL (1) PL371772A1 (de)
RU (1) RU2308130C2 (de)
WO (1) WO2003055005A1 (de)
ZA (1) ZA200404712B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2910749B1 (fr) * 2006-12-22 2010-12-17 Valeo Securite Habitacle Dispositif d'emission-reception de signaux pour vehicule automobile
DE102007043124B4 (de) * 2007-09-10 2016-03-31 Denso Corporation Vorrichtung und Verfahren für eine Radiowellenübertragung
CN107005774B (zh) * 2014-12-17 2019-09-06 唯听助听器公司 助听器以及操作助听器系统的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274090A (en) * 1980-02-19 1981-06-16 Knogo Corporation Detection of articles in adjacent passageways
CN2050632U (zh) * 1987-10-23 1990-01-03 张刚 双线全自动感应式警卫防盗仪
FR2624671B1 (fr) * 1987-12-09 1990-12-14 Merlin Gerin Dispositif de commande d'un interrupteur statique
US4963880A (en) * 1988-05-03 1990-10-16 Identitech Coplanar single-coil dual function transmit and receive antenna for proximate surveillance system
US4949050A (en) * 1989-09-12 1990-08-14 Harris Corporation RF power amplifier system having amplifier protection
FR2705844B1 (fr) * 1993-05-28 1995-07-21 Thomson Csf Procédé et dispositif de modulation en amplitude d'un signal radiofréquence.
US5748891A (en) * 1994-07-22 1998-05-05 Aether Wire & Location Spread spectrum localizers
EP0798681A1 (de) * 1996-03-29 1997-10-01 Sensormatic Electronics Corporation Impuls- Abfragesignal in einem harmonische Frequenzen empfangendes Warenüberwachungssytem
US5844130A (en) * 1996-04-03 1998-12-01 Ssi Technologies Apparatus for maintaining a constant radial distance between a transmitting circuit and an antenna coil
US6204729B1 (en) * 1997-12-19 2001-03-20 Nikon Research Corporation Of America H-bridge power amplifier for a motor
US6366474B1 (en) * 2000-09-29 2002-04-02 Jeff Gucyski Switching power supplies incorporating power factor correction and/or switching at resonant transition

Also Published As

Publication number Publication date
IL162453A (en) 2009-11-18
FR2834132B1 (fr) 2005-03-18
US20050095983A1 (en) 2005-05-05
CN1606816A (zh) 2005-04-13
RU2308130C2 (ru) 2007-10-10
AU2002364661A1 (en) 2003-07-09
ES2247426T3 (es) 2006-03-01
EP1456905A1 (de) 2004-09-15
DE60205277D1 (de) 2005-09-01
HUP0402353A2 (hu) 2005-02-28
ZA200404712B (en) 2005-05-24
PL371772A1 (en) 2005-06-27
WO2003055005A1 (fr) 2003-07-03
MXPA04005842A (es) 2004-09-10
JP2005528673A (ja) 2005-09-22
FR2834132A1 (fr) 2003-06-27
ATE300792T1 (de) 2005-08-15
CN100452101C (zh) 2009-01-14
RU2004122390A (ru) 2006-01-20
CA2470160A1 (fr) 2003-07-03
IL162453A0 (en) 2005-11-20
HU226181B1 (en) 2008-06-30
DE60205277T2 (de) 2006-06-08
US20080119146A1 (en) 2008-05-22
JP4095964B2 (ja) 2008-06-04

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