CN101529730B - 控制模拟滤波器的带宽 - Google Patents

控制模拟滤波器的带宽 Download PDF

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Publication number
CN101529730B
CN101529730B CN200780038922XA CN200780038922A CN101529730B CN 101529730 B CN101529730 B CN 101529730B CN 200780038922X A CN200780038922X A CN 200780038922XA CN 200780038922 A CN200780038922 A CN 200780038922A CN 101529730 B CN101529730 B CN 101529730B
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China
Prior art keywords
analog filter
bandwidth
filter
value
frequency
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CN200780038922XA
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Chinese (zh)
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CN101529730A (zh
Inventor
马希布尔·拉赫曼
约翰·J·帕克斯
詹姆斯·J·里凯斯
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Zenith Investment LLC
Apple Inc
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Freescale Semiconductor Inc
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Publication of CN101529730A publication Critical patent/CN101529730A/zh
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    • 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
    • H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • H03H11/1252—Two integrator-loop-filters
    • H03H11/1256—Tow-Thomas biquad
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/01—Tuned parameter of filter characteristics
    • H03H2210/012—Centre frequency; Cut-off frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/01—Tuned parameter of filter characteristics
    • H03H2210/015—Quality factor or bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/02—Variable filter component
    • H03H2210/025—Capacitor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/03—Type of tuning
    • H03H2210/036—Stepwise

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmitters (AREA)
CN200780038922XA 2006-10-18 2007-08-30 控制模拟滤波器的带宽 Active CN101529730B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/550,534 US7937058B2 (en) 2006-10-18 2006-10-18 Controlling the bandwidth of an analog filter
US11/550,534 2006-10-18
PCT/US2007/077169 WO2008048744A2 (en) 2006-10-18 2007-08-30 Controlling the bandwidth of an analog filter

Publications (2)

Publication Number Publication Date
CN101529730A CN101529730A (zh) 2009-09-09
CN101529730B true CN101529730B (zh) 2013-07-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780038922XA Active CN101529730B (zh) 2006-10-18 2007-08-30 控制模拟滤波器的带宽

Country Status (7)

Country Link
US (1) US7937058B2 (enExample)
EP (1) EP2074701A4 (enExample)
JP (1) JP5634713B2 (enExample)
KR (1) KR20090068339A (enExample)
CN (1) CN101529730B (enExample)
TW (1) TW200832904A (enExample)
WO (1) WO2008048744A2 (enExample)

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US20090225877A1 (en) * 2008-03-04 2009-09-10 Francis Swarts Method and system for characterization of filter transfer functions in ofdm systems
US20100123466A1 (en) * 2008-11-17 2010-05-20 Yongtao Wang System and Method for Corner Frequency Compensation
US8885773B2 (en) * 2010-04-22 2014-11-11 The Board Of Regents Of The University Of Texas System Radio architecture for an ultra low power receiver
CN102386947B (zh) * 2010-08-30 2014-03-05 瑞昱半导体股份有限公司 通讯装置及其方法
JP5665571B2 (ja) * 2011-01-28 2015-02-04 ルネサスエレクトロニクス株式会社 半導体集積回路およびその動作方法
US8989687B2 (en) * 2011-01-28 2015-03-24 Broadcom Corporation Communication receiver enhancements using multi-signal capture
KR20130017467A (ko) * 2011-08-10 2013-02-20 삼성전자주식회사 무선 송/수신장치에서의 아날로그 필터 및 이를 이용한 차단 주파수 설정방법
KR101844300B1 (ko) 2012-01-26 2018-05-15 삼성전자주식회사 입력 신호에 응답하여 동적으로 제어 가능한 포락선 검파 장치 및 방법
KR101939234B1 (ko) 2012-07-23 2019-01-16 삼성전자 주식회사 메모리 장치, 메모리 시스템 및 상기 메모리 장치의 독출 전압의 제어 방법
US9002304B2 (en) 2012-08-31 2015-04-07 Samsung Electronics Co., Ltd. Analog baseband filter apparatus for multi-band and multi-mode wireless transceiver and method for controlling the filter apparatus
KR20150053784A (ko) * 2012-09-05 2015-05-18 뉴랜스, 인코포레이티드. 바이쿼드 캘리브레이션
US10033353B2 (en) * 2013-06-19 2018-07-24 Qualcomm Technologies, Inc. Switchable capacitor array and method for driving a switchable capacitor array
KR102130452B1 (ko) * 2013-07-26 2020-07-06 삼성전자주식회사 멀티모드 멀티밴드 무선 송수신기를 위한 아날로그 기저대역 필터 장치 및 그 제어 방법
WO2015085059A1 (en) * 2013-12-04 2015-06-11 Marvell World Trade Ltd. Methods and systems for calibrating an analog filter
DE102014221083B4 (de) * 2014-10-16 2021-04-01 Dialog Semiconductor B.V. Vorrichtung und Verfahren zur Erzeugung einer echten Zufallszahl in Ein-Chip-Systemen (Systems-on-Chip) und Computerprogrammprodukt hierfür
CN105207646B (zh) * 2015-10-16 2017-09-22 桂林电子科技大学 交替dft调制滤波器组的极小化极大设计方法
CN110212599B (zh) * 2016-04-08 2022-12-27 华为技术有限公司 一种快速充电的方法、终端、充电器和系统
TWI595747B (zh) * 2016-09-26 2017-08-11 新唐科技股份有限公司 具有頻率校正功能的低階濾波電路、低階濾波電路的頻率校正方法以及高階濾波電路
US10051564B2 (en) * 2016-11-22 2018-08-14 Google Llc Transmitter signal time and frequency division duplexing
US10277268B2 (en) * 2017-06-02 2019-04-30 Psemi Corporation Method and apparatus for switching of shunt and through switches of a transceiver
WO2020146408A1 (en) * 2019-01-07 2020-07-16 Innophase, Inc. Using a multi-tone signal to tune a multi-stage low-noise amplifier
CN118590030B (zh) * 2024-08-08 2024-11-26 浙江芯劢微电子股份有限公司 一种新型滤波器带宽自校准方法、电路

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Also Published As

Publication number Publication date
CN101529730A (zh) 2009-09-09
WO2008048744A2 (en) 2008-04-24
JP5634713B2 (ja) 2014-12-03
US20080096514A1 (en) 2008-04-24
JP2010507342A (ja) 2010-03-04
EP2074701A4 (en) 2009-12-30
KR20090068339A (ko) 2009-06-26
EP2074701A2 (en) 2009-07-01
US7937058B2 (en) 2011-05-03
TW200832904A (en) 2008-08-01
WO2008048744A3 (en) 2008-07-03

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Owner name: TIANDING INVESTMENT CO., LTD.

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Patentee before: FREESCALE SEMICONDUCTOR, Inc.