ATE251820T1 - Radioempfänger mit komplexen filtern und komplexer verstärkungsregelung für niedrige oder null hertz zwischenfrequenz - Google Patents

Radioempfänger mit komplexen filtern und komplexer verstärkungsregelung für niedrige oder null hertz zwischenfrequenz

Info

Publication number
ATE251820T1
ATE251820T1 AT00974201T AT00974201T ATE251820T1 AT E251820 T1 ATE251820 T1 AT E251820T1 AT 00974201 T AT00974201 T AT 00974201T AT 00974201 T AT00974201 T AT 00974201T AT E251820 T1 ATE251820 T1 AT E251820T1
Authority
AT
Austria
Prior art keywords
gain
stage
received signal
signal
gain control
Prior art date
Application number
AT00974201T
Other languages
English (en)
Inventor
Neil A Birkett
James A Cherry
Martin Snelgrove
Florinel Balteanu
Original Assignee
Philsar Semiconductor 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 Philsar Semiconductor Inc filed Critical Philsar Semiconductor Inc
Application granted granted Critical
Publication of ATE251820T1 publication Critical patent/ATE251820T1/de

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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
AT00974201T 1999-11-15 2000-11-06 Radioempfänger mit komplexen filtern und komplexer verstärkungsregelung für niedrige oder null hertz zwischenfrequenz ATE251820T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002289823A CA2289823C (en) 1999-11-15 1999-11-15 Complex filtering/agc radio receiver architecture for low-if or zero-if
PCT/CA2000/001297 WO2001037436A2 (en) 1999-11-15 2000-11-06 Complex filtering/agc radio receiver architecture for low-if or zero-if

Publications (1)

Publication Number Publication Date
ATE251820T1 true ATE251820T1 (de) 2003-10-15

Family

ID=4164622

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00974201T ATE251820T1 (de) 1999-11-15 2000-11-06 Radioempfänger mit komplexen filtern und komplexer verstärkungsregelung für niedrige oder null hertz zwischenfrequenz

Country Status (7)

Country Link
US (1) US6977976B1 (de)
EP (1) EP1230738B1 (de)
AT (1) ATE251820T1 (de)
CA (1) CA2289823C (de)
DE (1) DE60005855T2 (de)
DK (1) DK1230738T3 (de)
WO (1) WO2001037436A2 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005506751A (ja) 2001-10-11 2005-03-03 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ダイレクトコンバージョン受信機
DE10219362B4 (de) * 2002-04-30 2009-12-31 Advanced Micro Devices, Inc., Sunnyvale Automatische Verstärkungssteuerung für einen Direktumsetzer und Verfahren zum Steuern der Verstärkung eines Basisbandsignals in einem derartigen Empfänger
US7155195B2 (en) * 2002-06-14 2006-12-26 Skyworks Solutions, Inc. Input and output filtering system for a direct conversion receiver
KR100546325B1 (ko) * 2003-05-09 2006-01-26 삼성전자주식회사 신호대 잡음비를 최대한 확보하며 최대 이득 부근의 정밀이득 제어로 전력 손실을 감소시키는 자동 이득 제어기,이를 구비한 이동 통신 단말기의 송신 장치 및 그 방법
JP2005020119A (ja) * 2003-06-24 2005-01-20 Renesas Technology Corp 通信用半導体集積回路および無線通信システム並びにゲインおよびオフセットの調整方法
US7433431B2 (en) * 2003-09-12 2008-10-07 Zarbana Digital Fund, Llc Staggered AGC with digitally controlled VGA
JP4289667B2 (ja) 2003-09-16 2009-07-01 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 可変利得制御回路および受信装置
US7613249B1 (en) 2004-04-21 2009-11-03 Marvell International Ltd. Spurious component reduction
US7697614B2 (en) * 2005-09-30 2010-04-13 Freescale Semiconductor, Inc. System and method for calibrating an analog signal path during operation in an ultra wideband receiver
US7498874B1 (en) * 2006-08-03 2009-03-03 National Semiconductor Corporation Glitch-free start-up with a tracking pin
WO2008089840A1 (en) * 2007-01-22 2008-07-31 Freescale Semiconductor, Inc. Very low intermediate frequency (vlif) receiver
US7693237B2 (en) * 2007-02-14 2010-04-06 Wilinx Corporation Systems and methods for synchronizing wireless communication systems
CN101867350B (zh) * 2009-04-17 2013-08-21 杭州中科微电子有限公司 一种零中频/低中频可配置的可变增益放大器
US20110007845A1 (en) * 2009-07-07 2011-01-13 Yen-Horng Chen Communication receiver having three filters connected in series
US9647623B2 (en) * 2009-09-30 2017-05-09 Silicon Laboratories Inc. Signal processor suitable for low intermediate frequency (LIF) or zero intermediate frequency (ZIF) operation
GB2487973A (en) * 2011-02-11 2012-08-15 Elonics Ltd Reduction of DC offsets in high gain cross-coupled IF active filters
DE102011006566A1 (de) * 2011-03-31 2012-10-04 Rohde & Schwarz Gmbh & Co. Kg Vorrichtungen zum automatischen Einstellen eines Verstärkungs- bzw. Dämpfungsfaktors
KR102494784B1 (ko) 2015-07-28 2023-02-01 삼성전자주식회사 수신기 및 그 동작 방법
US10826570B2 (en) 2018-05-31 2020-11-03 Skyworks Solutions, Inc. Apparatus and methods for multi-antenna communications
US11038471B2 (en) 2018-11-20 2021-06-15 Skyworks Solutions, Inc. Envelope tracking system with modeling of a power amplifier supply voltage filter
US11082021B2 (en) 2019-03-06 2021-08-03 Skyworks Solutions, Inc. Advanced gain shaping for envelope tracking power amplifiers
US11387797B2 (en) 2019-03-15 2022-07-12 Skyworks Solutions, Inc. Envelope tracking systems for power amplifiers
US11374538B2 (en) 2019-04-09 2022-06-28 Skyworks Solutions, Inc. Apparatus and methods for envelope tracking
US11303255B2 (en) 2019-07-22 2022-04-12 Skyworks Solutions, Inc. Apparatus and methods for adaptive power amplifier biasing
WO2021061851A1 (en) 2019-09-27 2021-04-01 Skyworks Solutions, Inc. Power amplifier bias modulation for low bandwidth envelope tracking
US11223324B2 (en) 2019-09-27 2022-01-11 Skyworks Solutions, Inc. Multi-level envelope tracking with analog interface
CN114514696A (zh) 2019-09-27 2022-05-17 天工方案公司 具有分离的直流和交流路径的多级包络跟踪系统
WO2021061855A1 (en) 2019-09-27 2021-04-01 Skyworks Solutions, Inc. Multi-level envelope tracking systems with adjusted voltage steps
US11855595B2 (en) 2020-06-05 2023-12-26 Skyworks Solutions, Inc. Composite cascode power amplifiers for envelope tracking applications
US11482975B2 (en) 2020-06-05 2022-10-25 Skyworks Solutions, Inc. Power amplifiers with adaptive bias for envelope tracking applications
US11863140B2 (en) * 2020-06-29 2024-01-02 Qualcomm Incorporated Programmable baseband filter for selecting between single-pole or complex-poles frequency response

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543546A (en) * 1983-04-20 1985-09-24 Magnavox Government And Industrial Electronics Company Switched capacitor circuit with minimized switched capacitance
US4736390A (en) * 1986-10-15 1988-04-05 Itt Avionics, A Division Of Itt Corporation Zero IF radio receiver apparatus
JPH082058B2 (ja) * 1989-06-13 1996-01-10 日本電気株式会社 自動利得制御方式
KR970007983B1 (ko) * 1992-06-08 1997-05-19 모토로라 인코포레이티드 자동 이득 제어 회로 및 수신기
FI100286B (fi) * 1996-04-01 1997-10-31 Nokia Mobile Phones Ltd Lähetin/vastaanotin RF-signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella
JPH10107677A (ja) * 1996-08-05 1998-04-24 Sony Corp 送受信装置
US6009317A (en) * 1997-01-17 1999-12-28 Ericsson Inc. Method and apparatus for compensating for imbalances between quadrature signals
US6324387B1 (en) * 1998-12-29 2001-11-27 Philips Electronics N.A. Corp. LNA control-circuit for receive closed loop automatic gain control

Also Published As

Publication number Publication date
DE60005855T2 (de) 2004-08-19
DE60005855D1 (de) 2003-11-13
CA2289823C (en) 2004-07-06
WO2001037436A2 (en) 2001-05-25
EP1230738B1 (de) 2003-10-08
DK1230738T3 (da) 2004-02-02
US6977976B1 (en) 2005-12-20
WO2001037436A3 (en) 2001-11-29
CA2289823A1 (en) 2001-05-15
EP1230738A2 (de) 2002-08-14

Similar Documents

Publication Publication Date Title
DE60005855D1 (de) Radioempfänger mit komplexen filtern und komplexer verstärkungsregelung für niedrige oder null hertz zwischenfrequenz
CA2154877A1 (en) Radio telephone equipment
CA2200530A1 (en) Variable-gain control
ATE96951T1 (de) Sprachverstaerker fuer einen rundfunkempfaenger.
CN103068029B (zh) 一种有效对抗信号快衰落和大信号阻塞的直放站接收机装置
MXPA05013203A (es) Receptor optoco que tiene un circuito de control de ganancia automatica de ciclo abierto.
JPH03208433A (ja) 無線電話受信機における自動利得制御回路
JPS5733836A (en) Automatic noise reducing circuit
JP2000174650A (ja) 受信機の利得制御方式
KR19990085914A (ko) 자동이득제어 기능을 갖는 무선 수신기
US20040248536A1 (en) Receiving circuit having improved distortion characteristics
JPH0265515A (ja) レベル制御回路
JPS5625846A (en) Radio relay unit in tunnel
JPS61255114A (ja) リニヤアンプのａｌｃ回路
JPS55112048A (en) Low power consumption type receiver
JPH0525845U (ja) 受信機のａｇｃ回路
JPS604334A (ja) 周波数変換形無線受信機
JPS6482890A (en) Sound output device
JPS5714209A (en) Squelch circuit
JPS56162520A (en) Differential amplifying circuit
JPS56137721A (en) Receiving circuit for amplitude-modulated wave
JPS57112187A (en) Video demodulation circuit
KR100339605B1 (en) Automatic gain control circuit
JPH04192891A (ja) 受信回路
JPH0376410A (ja) 自動利得制御増幅器

Legal Events

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