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WO2012060665A3 - Impedance matching device and system for optimizing matching of radio frequency in matching impedance of antenna - Google Patents

Impedance matching device and system for optimizing matching of radio frequency in matching impedance of antenna Download PDF

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Publication number
WO2012060665A3
WO2012060665A3 PCT/KR2011/008389 KR2011008389W WO2012060665A3 WO 2012060665 A3 WO2012060665 A3 WO 2012060665A3 KR 2011008389 W KR2011008389 W KR 2011008389W WO 2012060665 A3 WO2012060665 A3 WO 2012060665A3
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
variable capacitor
radio frequency
antenna impedance
matching
Prior art date
Application number
PCT/KR2011/008389
Other languages
French (fr)
Other versions
WO2012060665A2 (en
Inventor
Dong Chan Park
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
Application filed by Lg Innotek Co., Ltd. filed Critical Lg Innotek Co., Ltd.
Publication of WO2012060665A2 publication Critical patent/WO2012060665A2/en
Publication of WO2012060665A3 publication Critical patent/WO2012060665A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/004—Capacitive coupling circuits not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Aerials (AREA)

Abstract

Disclosed is a system for optimizing matching of a radio frequency in matching impedance of an antenna. The system includes an antenna impedance matching circuit outputting mutual impedance values between antenna impedances, an antenna impedance adjusting part electrically connected to the antenna impedance matching circuit to detect mutual impedance values between antenna impedances from the antenna impedance matching circuit, thereby adjusting voltage applied to the antenna impedances using at least one variable capacitor provided in the antenna impedance matching circuit suitably for mutual impedance values between the antenna impedances to be compensated, so that the antenna impedance are matched with each other, a first radio frequency matching optimizing part for antenna impedance matching electrically connected to the antenna impedance matching circuit to set at least one of adjusted variable capacitor value, which are output from the antenna impedance matching circuit, as a coordinate on a coordinate plane formed based on at least one capacitor value by using a lookup table when present antenna impedances are matched with each other through the antenna impedance adjusting part, and to store a radio frequency band point in one region range of a reference variable capacitor while performing an optimization operation by matching at least one adjusted variable capacitor value with the radio frequency band point in one region range of the reference variable capacitor, when the at least one adjusted variable capacitor value is determined as being in the one region range of the reference variable capacitor based on the comparison with region ranges of the reference variable capacitor which are previously stored and defined on a coordinate plane, so that an optimization operation is performed and a second radio frequency matching optimizing part for antenna impedance matching electrically connected to the antenna impedance matching circuit to set at least one adjusted variable capacitor value, which is output from the antenna impedance matching circuit, as a coordinate through a prediction algorithm when next antenna impedances are matched with each other through the antenna impedance adjusting part, and to match the coordinate of the at least one adjusted variable capacitor value to a radio frequency band point existing in the another region range of the reference variable capacitor, after searching for the coordinate of the at least one adjusted variable capacitor value from the radio frequency band point, which exists in the one region range of a first reference capacitor and is stored by the first radio frequency matching optimizing part for antenna impedance matching, when the at least one adjusted variable capacitor value is in another region range of the reference variable capacitor, so that the optimization operation is performed.
PCT/KR2011/008389 2010-11-04 2011-11-04 Impedance matching device and system for optimizing matching of radio frequency in matching impedance of antenna WO2012060665A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0109279 2010-11-04
KR1020100109279A KR101683909B1 (en) 2010-11-04 2010-11-04 System for optimizing matching of radio frequency in matching impedence of antenna

Publications (2)

Publication Number Publication Date
WO2012060665A2 WO2012060665A2 (en) 2012-05-10
WO2012060665A3 true WO2012060665A3 (en) 2012-09-20

Family

ID=46024977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/008389 WO2012060665A2 (en) 2010-11-04 2011-11-04 Impedance matching device and system for optimizing matching of radio frequency in matching impedance of antenna

Country Status (2)

Country Link
KR (1) KR101683909B1 (en)
WO (1) WO2012060665A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6461779B2 (en) * 2015-12-21 2019-01-30 株式会社日立製作所 Plan adjustment system and plan adjustment method
CN110504977B (en) * 2019-08-22 2021-05-14 歌尔科技有限公司 Multi-frequency-band impedance matching circuit and wireless radio frequency system
CN114914146B (en) * 2022-05-07 2024-06-21 北京北方华创微电子装备有限公司 Radio frequency matcher, control method thereof and semiconductor process equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050227633A1 (en) * 2004-04-13 2005-10-13 Dunko Greg A Portable electronic devices including multi-mode matching circuits and methods of operating the same
KR20060070803A (en) * 2004-12-21 2006-06-26 삼성전자주식회사 Antenna matching device and method for mobile communication terminal with built-in antenna
KR20080043067A (en) * 2006-11-13 2008-05-16 엘지이노텍 주식회사 Front end module of transmitter unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3931163B2 (en) * 2003-08-14 2007-06-13 松下電器産業株式会社 Antenna matching device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050227633A1 (en) * 2004-04-13 2005-10-13 Dunko Greg A Portable electronic devices including multi-mode matching circuits and methods of operating the same
KR20060070803A (en) * 2004-12-21 2006-06-26 삼성전자주식회사 Antenna matching device and method for mobile communication terminal with built-in antenna
KR20080043067A (en) * 2006-11-13 2008-05-16 엘지이노텍 주식회사 Front end module of transmitter unit

Also Published As

Publication number Publication date
KR101683909B1 (en) 2016-12-20
WO2012060665A2 (en) 2012-05-10
KR20120047615A (en) 2012-05-14

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