Nothing Special   »   [go: up one dir, main page]

WO2012103222A3 - Adaptive impedance matching - Google Patents

Adaptive impedance matching Download PDF

Info

Publication number
WO2012103222A3
WO2012103222A3 PCT/US2012/022554 US2012022554W WO2012103222A3 WO 2012103222 A3 WO2012103222 A3 WO 2012103222A3 US 2012022554 W US2012022554 W US 2012022554W WO 2012103222 A3 WO2012103222 A3 WO 2012103222A3
Authority
WO
WIPO (PCT)
Prior art keywords
reactive components
impedance matching
adaptive impedance
impedance
adjustment
Prior art date
Application number
PCT/US2012/022554
Other languages
French (fr)
Other versions
WO2012103222A2 (en
Inventor
Finn HAUSAGER
Original Assignee
Molex Incorporated
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 Molex Incorporated filed Critical Molex Incorporated
Publication of WO2012103222A2 publication Critical patent/WO2012103222A2/en
Publication of WO2012103222A3 publication Critical patent/WO2012103222A3/en

Links

Classifications

    • 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
    • H03H7/40—Automatic matching of load impedance to source impedance
    • 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

Landscapes

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

Abstract

A matching circuit for making an impedance at a terminal. The matching circuit comprises at least one variable reactance element for dynamically adjusting values of a plurality of reactive components. The at least one variable reactance element is configured to: (a) perform a first adjustment of a value of one of the reactive components so as to one of minimize and maximize a feedback voltage at least approximately at resonance, and (b) perform a second adjustment of values of multiple reactive components while maintaining a predetermined relationship among the multiple reactive components as a constant so as to match the impedance.
PCT/US2012/022554 2011-01-27 2012-01-25 Adaptive impedance matching WO2012103222A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161436768P 2011-01-27 2011-01-27
US61/436,768 2011-01-27

Publications (2)

Publication Number Publication Date
WO2012103222A2 WO2012103222A2 (en) 2012-08-02
WO2012103222A3 true WO2012103222A3 (en) 2012-09-20

Family

ID=46581382

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/022554 WO2012103222A2 (en) 2011-01-27 2012-01-25 Adaptive impedance matching

Country Status (2)

Country Link
TW (1) TW201238243A (en)
WO (1) WO2012103222A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3010148A1 (en) 2014-10-16 2016-04-20 Nxp B.V. Automatic impedance adjustment
US20240275340A1 (en) * 2023-02-14 2024-08-15 Bae Systems Information And Electronic Systems Integration Inc. Reactively matched and distributed power amplifier toplogy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070210899A1 (en) * 2005-01-31 2007-09-13 Akira Kato Mobile Radio Appartus Capable of Adaptive Impedace Matching
US20080122553A1 (en) * 2006-11-08 2008-05-29 Mckinzie William E Adaptive impedance matching module
US20100073103A1 (en) * 2008-09-24 2010-03-25 Spears John H Methods for tuning an adaptive impedance matching network with a look-up table

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070210899A1 (en) * 2005-01-31 2007-09-13 Akira Kato Mobile Radio Appartus Capable of Adaptive Impedace Matching
US20080122553A1 (en) * 2006-11-08 2008-05-29 Mckinzie William E Adaptive impedance matching module
US20100073103A1 (en) * 2008-09-24 2010-03-25 Spears John H Methods for tuning an adaptive impedance matching network with a look-up table

Also Published As

Publication number Publication date
TW201238243A (en) 2012-09-16
WO2012103222A2 (en) 2012-08-02

Similar Documents

Publication Publication Date Title
WO2018093176A3 (en) Mimo antenna assembly of laminated structure
WO2013040272A3 (en) Impedance matching circuits with multiple configurations
WO2009114838A3 (en) Adaptive tunable antennas for wireless devices
GB201120192D0 (en) A near field communications reader
WO2014049475A3 (en) Antenna tuning apparatus for a multiport antenna array
WO2012135853A3 (en) Rf impedance detection using two point voltage sampling
EP3949014A4 (en) Low dielectric, low loss radomes
IN2014CN01147A (en)
WO2011088361A3 (en) Tunable matching network circuit topology devices and methods
WO2015019106A3 (en) Rf energy harvester
WO2013061169A3 (en) Antenna providing variable communication with an implant
GB201305677D0 (en) Impedance conversion circuit and transmission terminal apparatus
WO2013013235A3 (en) Wireless power component selection
WO2014116933A3 (en) Communications based adjustments of an envelope tracking power supply
HK1131268A1 (en) Resonant circuit tuning system with dynamic impedance matching
EP2551954A3 (en) Controlling antenna characteristics of a near field communications (NFC) device
EP2743792A3 (en) Intelligent adaptive power supply
EP2651032A3 (en) Tunable capacitor
WO2011016979A3 (en) Apparatus for vhf impedance match tuning
WO2013048092A3 (en) Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency
WO2014076244A3 (en) Rf transformer
WO2012098399A3 (en) Low-power oscillator
EP2369753A3 (en) Wireless communication terminal
WO2011100922A3 (en) Method and apparatus for reducing power consumption of power amplifier
WO2013170826A3 (en) Multiband antenna tuned circuit and wireless terminal

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: 12739758

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12739758

Country of ref document: EP

Kind code of ref document: A2