ATE368265T1 - Eingangsimpedanzanordnung für rf transponder - Google Patents

Eingangsimpedanzanordnung für rf transponder

Info

Publication number
ATE368265T1
ATE368265T1 AT01310061T AT01310061T ATE368265T1 AT E368265 T1 ATE368265 T1 AT E368265T1 AT 01310061 T AT01310061 T AT 01310061T AT 01310061 T AT01310061 T AT 01310061T AT E368265 T1 ATE368265 T1 AT E368265T1
Authority
AT
Austria
Prior art keywords
transponder
input impedance
real part
value
antenna
Prior art date
Application number
AT01310061T
Other languages
English (en)
Inventor
Christopher Gordon Gerv Turner
John Mcmurray
Original Assignee
Zih Corp
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 Zih Corp filed Critical Zih Corp
Application granted granted Critical
Publication of ATE368265T1 publication Critical patent/ATE368265T1/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Burglar Alarm Systems (AREA)
AT01310061T 2000-11-30 2001-11-30 Eingangsimpedanzanordnung für rf transponder ATE368265T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA200007062 2000-11-30

Publications (1)

Publication Number Publication Date
ATE368265T1 true ATE368265T1 (de) 2007-08-15

Family

ID=25588996

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01310061T ATE368265T1 (de) 2000-11-30 2001-11-30 Eingangsimpedanzanordnung für rf transponder

Country Status (6)

Country Link
US (1) US6870460B2 (de)
EP (2) EP1211635B1 (de)
JP (1) JP2002280927A (de)
CN (1) CN1211939C (de)
AT (1) ATE368265T1 (de)
DE (1) DE60129525D1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6940467B2 (en) 2003-01-10 2005-09-06 Atmel Germany Gmbh Circuit arrangement and method for deriving electrical power from an electromagnetic field
DE10301451A1 (de) 2003-01-10 2004-07-22 Atmel Germany Gmbh Verfahren sowie Sende- und Empfangseinrichtung zur drahtlosen Datenübertragung und Modulationseinrichtung
US7075437B2 (en) * 2003-01-13 2006-07-11 Symbol Technologies, Inc. RFID relay device and methods for relaying and RFID signal
JP2007515848A (ja) * 2003-05-23 2007-06-14 シンボル テクノロジーズ インコーポレイテッド Ｒｆｉｄ中継装置及びｒｆｉｄ信号の中継方法
DE10325396A1 (de) 2003-05-28 2004-12-23 Atmel Germany Gmbh Schaltungsanordnung und Verfahren zur Phasenmodulation für rückstreubasierte Transponder
DE10325399A1 (de) 2003-05-28 2004-12-30 Atmel Germany Gmbh Schaltungsanordnung zur Phasenmodulation für rückstreubasierte Transporder
CA2532875A1 (en) * 2003-07-28 2005-03-03 Stemco Llc System and method for optimizing power usage in a radio frequency communication device
EP1769422B1 (de) * 2004-07-12 2009-01-21 ATMEL Germany GmbH Modulator und modulationsverfahren für eine einrichtung zur drahtlosen datenübertragung
US7479884B1 (en) 2004-08-31 2009-01-20 Cedar Ridge Research System and method for monitoring objects, people, animals or places
US8078103B2 (en) 2005-10-31 2011-12-13 Zih Corp. Multi-element RFID coupler
US20070115098A1 (en) * 2005-11-18 2007-05-24 Wj Communications, Inc. Rfid system including tags having low rf scattering mode
KR100659273B1 (ko) 2005-12-15 2006-12-20 삼성전자주식회사 Ｒｆｉｄ 태그 및 이를 갖는 ｒｆｉｄ 시스템
FR2901061B1 (fr) * 2006-05-12 2008-11-14 Centre Nat Rech Scient Convertisseur d'onde electromagnetique en tension continue
CN102750568B (zh) * 2012-06-01 2015-11-25 昆腾微电子股份有限公司 非接触ic卡射频接口电路及其调谐方法
US9680520B2 (en) 2013-03-22 2017-06-13 University Of Washington Through Its Center For Commercialization Ambient backscatter tranceivers, apparatuses, systems, and methods for communicating using backscatter of ambient RF signals
WO2015123306A1 (en) 2014-02-11 2015-08-20 University Of Washington Apparatuses, systems, and methods for communicating using mimo and spread spectrum coding in backscatter of ambient signals
WO2015123341A1 (en) 2014-02-11 2015-08-20 University Of Washington Wireless networking communication methods, systems, and devices operable using harvested power
US10079616B2 (en) 2014-12-19 2018-09-18 University Of Washington Devices and methods for backscatter communication using one or more wireless communication protocols including bluetooth low energy examples
EP3335432B1 (de) 2015-08-12 2024-02-14 University of Washington Rückstreuungsvorrichtungen und netzwerksysteme mit rückstreuungsvorrichtungen
EP3408681B1 (de) 2016-01-26 2024-01-24 University of Washington Rückstreuvorrichtungen mit beispielen für einzelseitenbandbetrieb
US10652073B2 (en) 2016-04-04 2020-05-12 University Of Washington Backscatter devices and systems providing backscattered signals including OFDM packets
WO2018075653A1 (en) 2016-10-18 2018-04-26 University Of Washington Backscatter systems, devices, and techniques utilizing css modulation and/or higher order harmonic cancellation
US10461783B2 (en) 2017-03-16 2019-10-29 University Of Washington Radio frequency communication devices having backscatter and non-backscatter communication modes and hardware re-use
EP3607429A4 (de) 2017-04-06 2021-01-06 The University of Washington Bild- und/oder videoübertragung unter verwendung von rückstreuungsvorrichtungen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4786907A (en) 1986-07-14 1988-11-22 Amtech Corporation Transponder useful in a system for identifying objects
CA1335676C (en) * 1988-01-14 1995-05-23 Akira Iga Portable data transmitter device and a system using the same
JPH03113387A (ja) * 1989-09-27 1991-05-14 Nippon Soken Inc 移動体識別装置の応答器
FR2660438B1 (fr) 1990-03-27 1992-08-07 Thomson Composants Microondes Antenne active de transmission bidirectionnelle.
US5970398A (en) * 1996-07-30 1999-10-19 Micron Communications, Inc. Radio frequency antenna with current controlled sensitivity
WO1998011504A1 (de) * 1996-09-12 1998-03-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Passiver transponder
FR2757952B1 (fr) * 1996-12-27 1999-03-19 Gemplus Card Int Transpondeur radioelectrique muni d'une antenne et d'un circuit de desaccord en frequence
US6147606A (en) * 1998-03-26 2000-11-14 Intermec Ip Corp. Apparatus and method for radio frequency transponder with improved read distance
US6621467B1 (en) * 1999-05-03 2003-09-16 Trolley Scan (Proprietary) Limited Energy transfer in an electronic identification system

Also Published As

Publication number Publication date
US20030025591A1 (en) 2003-02-06
CN1359198A (zh) 2002-07-17
EP1211635A2 (de) 2002-06-05
EP1760639A1 (de) 2007-03-07
US6870460B2 (en) 2005-03-22
EP1211635B1 (de) 2007-07-25
CN1211939C (zh) 2005-07-20
JP2002280927A (ja) 2002-09-27
EP1211635A3 (de) 2002-08-14
DE60129525D1 (de) 2007-09-06

Similar Documents

Publication Publication Date Title
ATE368265T1 (de) Eingangsimpedanzanordnung für rf transponder
US7546089B2 (en) Switchable directional coupler for use with RF devices
US7822388B2 (en) Transceiver, modulation integrated circuit, and RFID reader/writer
WO2000021020A8 (en) Card for interaction with a computer
EP0700169A3 (de) Sende-/Empfangsumschaltes für Radiokommunikationsgerät
EP0741463A3 (de) Halbduplexfunkgerät mit niedriger Dämpfung des Sendesignals
CA2152806A1 (en) Offset Transmission Line Coupler for Radio Frequency Signal Amplifiers
EP1058384A3 (de) Zweibandabstimmschaltung
EP0736978A3 (de) Sendeempfänger für die Funkübertragung
EP0911985A3 (de) Dualbandsender mit schaltbaren Anpassunsschaltung
EP0825734A3 (de) Sender-Empfänger mit Selbsttest
EP0999607A3 (de) Antennenkoppler und Anordnung zum Koppeln eines Funkgeräts an externe Geräte
CN100511260C (zh) Rfid阅读器和rfid系统
EP0817441A3 (de) Integrierte Schaltung mit adaptivem Eingangs/Ausgangstor
EP0704928A3 (de) HF Transpondersystem mit Parallelresonanz-Abfrage und Serienresonanz-Antwort
CA2318538A1 (en) Contact/contactless smart card having customizable antenna interface
EP0823790A3 (de) Mobiles Zweibandfunkgerät mit kreuzverbundenen Sender- und Empfänger-Schaltungen
EP0865095A3 (de) Antennenweiche
ATE293292T1 (de) Funkantenne
EP0813311A3 (de) Schaltsystem für Antenneanpassungsschaltungen in einem tragbaren TDMA Telefon
ATE326041T1 (de) Breitband hochimpedanz-transponder für elektronisches identifizierungssystem
KR970060722A (ko) 송수신기를 위한 rf 듀플렉서 통과 기술
MY119255A (en) Pcmcia rf connector
AU2003216303A1 (en) Tire electronics assembly having a multi-frequency antenna
EP1317072A3 (de) Drahtloses Nachrichtensystem mit einem Sender mit variabler Zwischenfrequenz

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties