WO2010104308A3 - Radio frequency identification transmitting and receiving device - Google Patents

Radio frequency identification transmitting and receiving device Download PDF

Info

Publication number
WO2010104308A3
WO2010104308A3 PCT/KR2010/001449 KR2010001449W WO2010104308A3 WO 2010104308 A3 WO2010104308 A3 WO 2010104308A3 KR 2010001449 W KR2010001449 W KR 2010001449W WO 2010104308 A3 WO2010104308 A3 WO 2010104308A3
Authority
WO
WIPO (PCT)
Prior art keywords
vswr
wave signal
radio frequency
frequency identification
antenna
Prior art date
Application number
PCT/KR2010/001449
Other languages
French (fr)
Other versions
WO2010104308A2 (en
Inventor
Nam Yun Kim
Young Bin Cho
Original Assignee
Lg Innotek Co., 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
Priority claimed from KR1020090019673A external-priority patent/KR101543028B1/en
Priority claimed from KR1020090020636A external-priority patent/KR101028205B1/en
Application filed by Lg Innotek Co., Ltd. filed Critical Lg Innotek Co., Ltd.
Publication of WO2010104308A2 publication Critical patent/WO2010104308A2/en
Publication of WO2010104308A3 publication Critical patent/WO2010104308A3/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

A radio frequency identification (RFID) transceiver is disclosed, the transceiver characterized by: an antenna; a directivity coupler outputting a progressive wave signal inputted from the antenna and a reflection wave signal reflected from the antenna; a VSWR detector using the progressive wave signal and the reflection wave signal to detect a VSWR; a VSWR controller controlling a VSWR characteristic in response to the detected VSWR; and a phase/impedance controller using the controlled VSWR characteristic.
PCT/KR2010/001449 2009-03-09 2010-03-09 Radio frequency identification transmitting and receiving device WO2010104308A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2009-0019673 2009-03-09
KR1020090019673A KR101543028B1 (en) 2009-03-09 2009-03-09 Radio Frequency IDentification receiver/transceiver device
KR1020090020636A KR101028205B1 (en) 2009-03-11 2009-03-11 Radio Frequency IDentification receiver/transceiver device
KR10-2009-0020636 2009-03-11

Publications (2)

Publication Number Publication Date
WO2010104308A2 WO2010104308A2 (en) 2010-09-16
WO2010104308A3 true WO2010104308A3 (en) 2010-11-25

Family

ID=42728929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/001449 WO2010104308A2 (en) 2009-03-09 2010-03-09 Radio frequency identification transmitting and receiving device

Country Status (2)

Country Link
TW (1) TWI428835B (en)
WO (1) WO2010104308A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103297154A (en) * 2012-02-28 2013-09-11 鼎桥通信技术有限公司 Method and device for detecting standing-wave ratio

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553577B (en) * 2015-12-25 2019-01-11 重庆微标科技股份有限公司 Portable RF ID product parameters test device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070135062A1 (en) * 2005-12-14 2007-06-14 Samsung Electronics Co., Ltd. Apparatus for automatically matching frequency of antenna in wireless terminal and method thereof
KR20080035888A (en) * 2006-10-20 2008-04-24 삼성전자주식회사 Apparatus of matching impedance in portable terminal
KR20080096176A (en) * 2007-04-27 2008-10-30 주식회사 유컴테크놀러지 Leakage signal cancellation system of rfid reader and method thereof
US20090015378A1 (en) * 2007-07-10 2009-01-15 Samsung Electronics Co., Ltd. Rfid reader cancelling leakage signal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070135062A1 (en) * 2005-12-14 2007-06-14 Samsung Electronics Co., Ltd. Apparatus for automatically matching frequency of antenna in wireless terminal and method thereof
KR20080035888A (en) * 2006-10-20 2008-04-24 삼성전자주식회사 Apparatus of matching impedance in portable terminal
KR20080096176A (en) * 2007-04-27 2008-10-30 주식회사 유컴테크놀러지 Leakage signal cancellation system of rfid reader and method thereof
US20090015378A1 (en) * 2007-07-10 2009-01-15 Samsung Electronics Co., Ltd. Rfid reader cancelling leakage signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103297154A (en) * 2012-02-28 2013-09-11 鼎桥通信技术有限公司 Method and device for detecting standing-wave ratio
CN103297154B (en) * 2012-02-28 2015-03-18 鼎桥通信技术有限公司 Method and device for detecting standing-wave ratio

Also Published As

Publication number Publication date
WO2010104308A2 (en) 2010-09-16
TWI428835B (en) 2014-03-01
TW201101188A (en) 2011-01-01

Similar Documents

Publication Publication Date Title
WO2015105696A8 (en) Antenna coupling for sensing and dynamic transmission
WO2011097046A3 (en) Conductive line communication apparatus and conductive line radar system and method
WO2011140458A3 (en) Magnetically coupling radio frequency antennas
WO2010068016A3 (en) Mobile terminal and method for providing enhanced contactless communication using contactless module
WO2012167111A3 (en) Antenna control
WO2009002598A3 (en) Methods and apparatus for self-jamming suppression in a radio frequency identification (rfid) reader
WO2011103066A3 (en) Systems, methods and apparatuses for remote device detection
JP2008016022A5 (en)
JP2013538548A5 (en)
EP1928098A3 (en) Method and apparatus for signal detecting in radio frequency identification system
WO2008146520A1 (en) Tag communication device and tag communication method
WO2013149006A8 (en) Redirection of electromagnetic signals using substrate structures
WO2012066541A3 (en) System and method for object position estimation based on ultrasonic reflected signals
WO2009123922A3 (en) Method and system for utilizing an rfid sensor tag as rf power measurement embedded in antenna
JP2014503815A5 (en)
EP2278353A3 (en) Weather radar apparatus and rainfall rate calculation method
WO2010087644A3 (en) Apparatus and method for transmitting a reference signal in a radio communication system
NZ599876A (en) Radio frequency identification reader antenna having a dynamically adjustable q-factor
WO2012030615A3 (en) Multi-range radar system
WO2013184535A3 (en) Facilitating switching between transmitting antennas in portable electronic devices
EP1939787A3 (en) Apparatus and method for improving receiving sensitivity of portable radio frequency identification
JP2008542931A5 (en)
EP2148447A8 (en) Obstacle detector, wireless receiver, wireless transmitter, and wireless communication system
WO2011013943A3 (en) Base station antenna device embedded with transmission and receiving module
WO2011090332A3 (en) Apparatus for multiple antennas in wireless communication system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10750999

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTIFICATION OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC OF 121211

122 Ep: pct application non-entry in european phase

Ref document number: 10750999

Country of ref document: EP

Kind code of ref document: A2