FR2934421B1 - Detection de valeur d'une impedance d'un systeme radiofrequence - Google Patents

Detection de valeur d'une impedance d'un systeme radiofrequence

Info

Publication number
FR2934421B1
FR2934421B1 FR0855012A FR0855012A FR2934421B1 FR 2934421 B1 FR2934421 B1 FR 2934421B1 FR 0855012 A FR0855012 A FR 0855012A FR 0855012 A FR0855012 A FR 0855012A FR 2934421 B1 FR2934421 B1 FR 2934421B1
Authority
FR
France
Prior art keywords
impedance
radio frequency
value detection
frequency system
detection
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR0855012A
Other languages
English (en)
Other versions
FR2934421A1 (fr
Inventor
Benoit Bonnet
Sylvain Charley
Francois Dupont
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics Tours SAS
Original Assignee
STMicroelectronics Tours SAS
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 STMicroelectronics Tours SAS filed Critical STMicroelectronics Tours SAS
Priority to FR0855012A priority Critical patent/FR2934421B1/fr
Priority to US12/506,708 priority patent/US8565695B2/en
Publication of FR2934421A1 publication Critical patent/FR2934421A1/fr
Application granted granted Critical
Publication of FR2934421B1 publication Critical patent/FR2934421B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • 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
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • 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
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/045—Circuits with power amplifiers with means for improving efficiency
FR0855012A 2008-07-23 2008-07-23 Detection de valeur d'une impedance d'un systeme radiofrequence Expired - Fee Related FR2934421B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0855012A FR2934421B1 (fr) 2008-07-23 2008-07-23 Detection de valeur d'une impedance d'un systeme radiofrequence
US12/506,708 US8565695B2 (en) 2008-07-23 2009-07-21 Detection of the value of an impedance of a radiofrequency system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0855012A FR2934421B1 (fr) 2008-07-23 2008-07-23 Detection de valeur d'une impedance d'un systeme radiofrequence

Publications (2)

Publication Number Publication Date
FR2934421A1 FR2934421A1 (fr) 2010-01-29
FR2934421B1 true FR2934421B1 (fr) 2010-08-13

Family

ID=40377187

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0855012A Expired - Fee Related FR2934421B1 (fr) 2008-07-23 2008-07-23 Detection de valeur d'une impedance d'un systeme radiofrequence

Country Status (2)

Country Link
US (1) US8565695B2 (fr)
FR (1) FR2934421B1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8452246B2 (en) * 2011-04-07 2013-05-28 Intel Mobile Communications GmbH Antenna tuner in combination with modified feedback receiver for improved antenna matching
FR3004007A1 (fr) * 2013-03-29 2014-10-03 St Microelectronics Tours Sas Coupleur large bande
US9209839B2 (en) * 2013-04-17 2015-12-08 Broadcom Corporation Method of antenna impedance mismatch compensation based on time-to-digital converter phase estimation
US9535140B2 (en) * 2013-06-28 2017-01-03 Infineon Technologies Ag System and method for a transformer and a phase-shift network
US9319006B2 (en) * 2013-10-01 2016-04-19 Infineon Technologies Ag System and method for a radio frequency coupler
US9322858B2 (en) 2014-02-04 2016-04-26 Infineon Technologies Austria Ag System and method for a phase detector
WO2015125638A1 (fr) * 2014-02-19 2015-08-27 株式会社村田製作所 Circuit frontal à haute fréquence
US10573950B2 (en) * 2017-04-11 2020-02-25 Qualcomm Incorporated Directional coupler
US10141961B1 (en) 2017-05-18 2018-11-27 Nanosemi, Inc. Passive intermodulation cancellation
US11323188B2 (en) 2017-07-12 2022-05-03 Nanosemi, Inc. Monitoring systems and methods for radios implemented with digital predistortion
US11303251B2 (en) * 2017-10-02 2022-04-12 Nanosemi, Inc. Digital predistortion adjustment based on determination of load condition characteristics
US11863210B2 (en) 2018-05-25 2024-01-02 Nanosemi, Inc. Linearization with level tracking
CN108718199B (zh) * 2018-07-24 2023-09-15 广东电网有限责任公司 天线自适应阻抗匹配器和匹配方法
US11082015B2 (en) 2018-11-05 2021-08-03 Andrew Wireless Systems Gmbh Methods and apparatuses for reflection measurements

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298903A1 (fr) * 1975-01-22 1976-08-20 Thomson Csf Dispositif d'adaptation d'antenne et antenne munie d'un tel dispositif
US4375051A (en) * 1981-02-19 1983-02-22 The Perkin-Elmer Corporation Automatic impedance matching between source and load
SE506168C2 (sv) * 1996-01-17 1997-11-17 Allgon Ab Sätt och anordning för mätning av reflektionsförlusten hos en radiofrekvent signal
US7151382B1 (en) * 2005-09-22 2006-12-19 Rockwell Collins, Inc. Apparatus and method for radio frequency power and standing wave ratio measurement
US7787839B2 (en) * 2006-12-06 2010-08-31 Broadcom Corporation RFIC with dynamically controlled power amplifier

Also Published As

Publication number Publication date
US8565695B2 (en) 2013-10-22
FR2934421A1 (fr) 2010-01-29
US20100019983A1 (en) 2010-01-28

Similar Documents

Publication Publication Date Title
FR2934421B1 (fr) Detection de valeur d'une impedance d'un systeme radiofrequence
HK1221286A1 (zh) 射頻識別多普勒運動檢測器
FR2917517B1 (fr) Detection de multiples frequences simultanees
EP2283382A4 (fr) Système de jauge de niveau à radar modulé en fréquence de haute sensibilité
EP2245756A4 (fr) Ajustement de niveau de détection radio pour des signaux de demande sur la base d une fausse détection observée
FI20065850L (fi) Taajuusviritettävä nesteantenni
ITMI20091104A1 (it) Trasmettitore multi frequenza per metal detector
EP2321665A4 (fr) Procédé de détection de signaux radar
FR2981783B1 (fr) Systeme de detection d'une attaque par laser d'une puce de circuit integre
EP2377068B8 (fr) Détermination des vitesses d'étiquettes d'identification par radiofréquence
FR2947118B1 (fr) Dispositif d'oscillateur multibandes frequentielles
FR2968487B1 (fr) Dispositif de detection directionnel de proximite capacitif
FR2955226B1 (fr) Dispositif de detection d'ondes acoustiques et systeme de localisation d'une source d'ondes acoustiques
FR2954829B1 (fr) Systeme pour mesurer un champ electromagnetique
FR2992758B1 (fr) Systeme d'identification par frequences radio
DK2220837T3 (da) Signalopdagelse
FR2968845B1 (fr) Systeme d'antenne en diversite
IT1394705B1 (it) Divisore di un segnale multifase.
FR2916533B1 (fr) Systeme d'analyse de frequence de dispositifs resonnants.
ITMI20060716A1 (it) Dispositivo per la taratura di un trasmettitore di campo
FR2926422B1 (fr) Systeme d'emission radiofrequence
FR2969831B1 (fr) Dispositif d'emission radiofrequence
FI20075392A0 (fi) Radiovastaanottimen herkkyyden parantaminen
FR2928228B1 (fr) "systeme antennaire pour la detection de signaux radioelectriques"
FR2929796B1 (fr) Coupleur pour systeme radio frequences multibandes.

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20140331