ATE443941T1 - Sender mit kartesischer schleife und verfahren zur einstellung eines ausgangspegels eines solchen senders - Google Patents

Sender mit kartesischer schleife und verfahren zur einstellung eines ausgangspegels eines solchen senders

Info

Publication number
ATE443941T1
ATE443941T1 AT04741499T AT04741499T ATE443941T1 AT E443941 T1 ATE443941 T1 AT E443941T1 AT 04741499 T AT04741499 T AT 04741499T AT 04741499 T AT04741499 T AT 04741499T AT E443941 T1 ATE443941 T1 AT E443941T1
Authority
AT
Austria
Prior art keywords
transmitter
adjusting
output level
cartesic
loop
Prior art date
Application number
AT04741499T
Other languages
English (en)
Inventor
Moshe Ben-Ayun
Avi Ben-Salmon
Mark Rozental
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE443941T1 publication Critical patent/ATE443941T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • 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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/211—Indexing scheme relating to amplifiers the input of an amplifier can be attenuated by a continuously controlled transistor attenuator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/321—Use of a microprocessor in an amplifier circuit or its control circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/336—A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/393—A measuring circuit being coupled to the output of an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
AT04741499T 2003-06-17 2004-04-30 Sender mit kartesischer schleife und verfahren zur einstellung eines ausgangspegels eines solchen senders ATE443941T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0313928A GB2403086B (en) 2003-06-17 2003-06-17 Cartesian loop transmitter and method of adjusting an output level of such transmitter
PCT/EP2004/050657 WO2004114518A1 (en) 2003-06-17 2004-04-30 Cartesian loop transmitter and method of adjusting an output level of such transmitter

Publications (1)

Publication Number Publication Date
ATE443941T1 true ATE443941T1 (de) 2009-10-15

Family

ID=27636644

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04741499T ATE443941T1 (de) 2003-06-17 2004-04-30 Sender mit kartesischer schleife und verfahren zur einstellung eines ausgangspegels eines solchen senders

Country Status (7)

Country Link
US (1) US7340226B2 (de)
EP (1) EP1639700B1 (de)
KR (1) KR100768684B1 (de)
AT (1) ATE443941T1 (de)
DE (1) DE602004023291D1 (de)
GB (1) GB2403086B (de)
WO (1) WO2004114518A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4460892B2 (ja) * 2001-06-21 2010-05-12 ジェネンテック インコーポレイテッド 徐放性組成物
GB2403613B (en) * 2003-07-04 2005-07-06 Motorola Inc Cartesian loop transmitter and method of adjusting an output level of such transmitter
GB2432271B (en) * 2005-11-15 2007-10-10 Motorola Inc Linear RF transmitter and method of operation
JP4468422B2 (ja) * 2007-08-09 2010-05-26 株式会社東芝 カーテシアンループを用いた無線送信装置
GB2466072B (en) 2008-12-12 2011-03-23 Motorola Inc Adaptive cartesian loop transmitter for broadband and optimal loop stability adjustment
GB2494652A (en) * 2011-09-14 2013-03-20 Stephen Anthony Gerard Chandler A transmitter amplifier with linearising RF feedback and automatic control of resonator Q, resonator frequency, loop phase, and loop gain
EP4243284A3 (de) 2015-11-23 2023-10-11 Anlotek Limited Variabler filter
CN117318668A (zh) 2017-05-24 2023-12-29 安乐泰克有限公司 用于控制谐振器的装置和方法
US11018783B2 (en) * 2019-07-12 2021-05-25 Eagle Technology, Llc System and method for mitigating broadband interference
US11277110B2 (en) 2019-09-03 2022-03-15 Anlotek Limited Fast frequency switching in a resonant high-Q analog filter
JP2023504732A (ja) 2019-12-05 2023-02-06 アンロテック リミテッド 周波数合成における安定した調整可能なアクティブフィードバックアナログフィルタの使用
EP3890189A1 (de) 2020-03-30 2021-10-06 Anlotek Limited Aktive feedback-analogfilter mit gekoppelten resonatoren
EP3926828A1 (de) 2020-06-15 2021-12-22 Anlotek Limited Abstimmbares bandpassfilter mit hoher stabilität und orthogonaler abstimmung
JP7608194B2 (ja) * 2021-02-01 2025-01-06 東芝テック株式会社 通信装置及び通信方法
US11955942B2 (en) 2021-02-27 2024-04-09 Anlotek Limited Active multi-pole filter
EP4084333A1 (de) 2021-04-30 2022-11-02 Anlotek Limited Phasenrauschverminderung in einem variablen analogen hf-resonator mit zuschaltbaren kondensator festen wertes
EP4089920A1 (de) 2021-05-12 2022-11-16 Anlotek Limited Schnelle frequenzumschaltung in einem variablen hf-filter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2293935B (en) * 1994-10-03 1999-07-14 Linear Modulation Tech Automatic calibration of carrier suppression and loop phase in a cartesian amplifier
US5675286A (en) * 1996-02-12 1997-10-07 Motorola, Inc. Method and apparatus for an improved linear transmitter
US5894496A (en) * 1996-09-16 1999-04-13 Ericsson Inc. Method and apparatus for detecting and compensating for undesired phase shift in a radio transceiver
US5959499A (en) * 1997-09-30 1999-09-28 Motorola, Inc. Predistortion system and method using analog feedback loop for look-up table training
GB9817675D0 (en) * 1998-08-13 1998-10-07 Simoco Int Ltd Error correction in amplifiers
GB2359680B (en) 2000-02-25 2002-05-15 Motorola Israel Ltd Apparatus for linear transmitter with improved loop gain stabilization
JP2001358606A (ja) * 2000-06-14 2001-12-26 Matsushita Electric Ind Co Ltd 時分割多重方式無線装置
US6353359B1 (en) * 2000-11-06 2002-03-05 Motorola, Inc. Training scheme for high efficiency amplifier
FI109059B (fi) 2001-02-21 2002-05-15 Nokia Corp Menetelmä lähettimen häiriöiden vähentämiseksi, lähetin ja radiolaite
KR100790140B1 (ko) * 2001-03-23 2007-12-31 삼성전자주식회사 3차원 디지털 변조 및 복조 장치 및 방법
US6731694B2 (en) * 2001-08-07 2004-05-04 Motorola, Inc. Isolator eliminator for a linear transmitter
KR100654009B1 (ko) * 2002-08-22 2006-12-04 아이트란 커뮤니케이션스 리미티드 차분 코드 시프트 키잉을 사용한 확산 스펙트럼 통신시스템
GB2403613B (en) * 2003-07-04 2005-07-06 Motorola Inc Cartesian loop transmitter and method of adjusting an output level of such transmitter

Also Published As

Publication number Publication date
DE602004023291D1 (de) 2009-11-05
EP1639700A1 (de) 2006-03-29
GB0313928D0 (en) 2003-07-23
KR100768684B1 (ko) 2007-10-23
WO2004114518A1 (en) 2004-12-29
GB2403086B (en) 2005-07-20
EP1639700B1 (de) 2009-09-23
GB2403086A (en) 2004-12-22
KR20060022698A (ko) 2006-03-10
US20070173213A1 (en) 2007-07-26
US7340226B2 (en) 2008-03-04

Similar Documents

Publication Publication Date Title
ATE443941T1 (de) Sender mit kartesischer schleife und verfahren zur einstellung eines ausgangspegels eines solchen senders
ATE438951T1 (de) Sender mit kartesischer schleife und verfahren zur einstellung eines ausgangspegels eines solchen senders
DE602005006005D1 (de) Verfahren und vorrichtung zur unterdrückung von kommunikationssignal-störungen
DE602004007887D1 (de) Verfahren und Gerät zur automatischen Verstärkungssteuerung eines Mehrträgersignals in einem Kommunikationsempfänger
ATE497339T1 (de) Verfahren und vorrichtung zur regelung der sendeleistung und übertragungsrate einer funkverbindung
DE60226259D1 (de) Drahtloses kommunikationssystem mit erkennung von fremdstrahlungsquellen
DE60220449D1 (de) Verfahren und gerät zur dopplerspreizschätzung und dopplerverschiebungschätzung
DE69520812D1 (de) Verfahren und einrichtung zur korrektur und begrenzung der sendeleistung auf den rückkanal eines mobilfunktelefonsystems
US7203471B2 (en) System and method for selectively utilizing an attenuation device in a two-way radio receiver based on squelch detect and radio signal strength indication (RSSI)
GB2375688B (en) Telephone apparatus and a communication method using such apparatus
ATE478477T1 (de) Signalempfang in einer vorrichtung mit einem sender
DE10345959A1 (de) Betriebssituationsabhängige Ermittlung und Selektion der Übertragungspfade für die Einrichtung von Rake-Fingern von Rake-Empfängereinheiten in Mobilkommunikations-Endgeräten
ATE365414T1 (de) Verfahren und apparat zur bestimmung von kanalbedingungen in drahtlosen kommunikationssystemen
EP2608404B1 (de) Verfahren und Vorrichtung zur Durchführung einer automatischen Verstärkungsregelung eines empfangenen Signals
CN106251856A (zh) 一种基于移动终端的环境噪声消除系统及方法
US20120329415A1 (en) Apparatus and Method for Interference Management
EP1605655A3 (de) Leistungsreduzierung im Aufwärtskanal
WO2004107629A3 (en) Method and system for determining the gain for an optical signal
DE69610434D1 (de) Verfahren und anordnung zur leistungsregelung in einem mobilen telefonsystem
WO2007070635A3 (en) Method and apparatus for transmitter calibration
FI20035089A0 (fi) Menetelmä häiriöiden vaikutuksen pienetämiseksi vastaanottimessa ja elektroniikkalaite
CN103840783B (zh) 一种自动时隙电平控制的系统及其实现方法
US9203472B2 (en) Automatic gain control for power line communication
CN205080198U (zh) 一种毫米波检波器
TW200607334A (en) Signal processing device and signal processing method

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties