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

Radio frequency identification transmitting and receiving device Download PDF

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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

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77—Near-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

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