GB2502090B - Filter circuitry - Google Patents

Filter circuitry

Info

Publication number
GB2502090B
GB2502090B GB1208545.2A GB201208545A GB2502090B GB 2502090 B GB2502090 B GB 2502090B GB 201208545 A GB201208545 A GB 201208545A GB 2502090 B GB2502090 B GB 2502090B
Authority
GB
United Kingdom
Prior art keywords
filter circuitry
circuitry
filter
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
GB1208545.2A
Other versions
GB2502090A (en
GB201208545D0 (en
Inventor
Risto Heikki Sakari Kaunisto
Jouni Kristian Kaukovuori
Petri Tapani Eloranta
Jari Johannes Heikkinen
Jonne Juhani Riekki
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.)
Broadcom Corp
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Priority to GB1208545.2A priority Critical patent/GB2502090B/en
Publication of GB201208545D0 publication Critical patent/GB201208545D0/en
Priority to PCT/IB2013/053987 priority patent/WO2013171700A1/en
Publication of GB2502090A publication Critical patent/GB2502090A/en
Application granted granted Critical
Publication of GB2502090B publication Critical patent/GB2502090B/en
Priority to US14/543,709 priority patent/US9313053B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
    • 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
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1775—Parallel LC in shunt or branch path
    • 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
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/425—Balance-balance networks
    • H03H7/427—Common-mode filters
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
    • 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
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H2001/0021—Constructional details
    • H03H2001/0078—Constructional details comprising spiral inductor on a substrate
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H2007/013—Notch or bandstop filters
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1716—Comprising foot-point elements
    • H03H7/1733—Element between different shunt or branch paths
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1791—Combined LC in shunt or branch path
    • 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
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/425—Balance-balance networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Filters And Equalizers (AREA)
  • Superheterodyne Receivers (AREA)
GB1208545.2A 2012-05-15 2012-05-15 Filter circuitry Expired - Fee Related GB2502090B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1208545.2A GB2502090B (en) 2012-05-15 2012-05-15 Filter circuitry
PCT/IB2013/053987 WO2013171700A1 (en) 2012-05-15 2013-05-15 Filter Circuitry
US14/543,709 US9313053B2 (en) 2012-05-15 2014-11-17 Filter circuitry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1208545.2A GB2502090B (en) 2012-05-15 2012-05-15 Filter circuitry

Publications (3)

Publication Number Publication Date
GB201208545D0 GB201208545D0 (en) 2012-06-27
GB2502090A GB2502090A (en) 2013-11-20
GB2502090B true GB2502090B (en) 2014-07-09

Family

ID=46458877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1208545.2A Expired - Fee Related GB2502090B (en) 2012-05-15 2012-05-15 Filter circuitry

Country Status (2)

Country Link
GB (1) GB2502090B (en)
WO (1) WO2013171700A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9595935B2 (en) * 2015-05-12 2017-03-14 Qualcomm Incorporated Active notch filter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808843A (en) * 1985-04-10 1989-02-28 Electric Power Research Institute Method and means for damping supersynchronous oscillations in an AC power system
JP2000308260A (en) * 1999-04-15 2000-11-02 Nissin Electric Co Ltd Alternate current filter
US20040041634A1 (en) * 2002-08-30 2004-03-04 Kabushiki Kaisha Toshiba High-frequency power amplifier
US20080287089A1 (en) * 2005-11-20 2008-11-20 Martin Alles Input filter for image frequency suppression
US20110133853A1 (en) * 2009-12-04 2011-06-09 Renesas Electronics Corporation Semiconductor device with filter circuit
CN202042905U (en) * 2011-04-26 2011-11-16 湖北中兴电力试验研究有限公司 Double tuned filter applied to automatic tracing compensation arc suppression coil complete device
CN102394664A (en) * 2011-11-04 2012-03-28 物联微电子(常熟)有限公司 Frequency modulation reception device capable of automatic interference elimination and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6842086B1 (en) * 1999-08-20 2005-01-11 Eagle Comtronics, Inc. Two-pole notch filter
TW200642257A (en) * 2005-05-26 2006-12-01 Wistron Neweb Corp Low noise block downconverter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808843A (en) * 1985-04-10 1989-02-28 Electric Power Research Institute Method and means for damping supersynchronous oscillations in an AC power system
JP2000308260A (en) * 1999-04-15 2000-11-02 Nissin Electric Co Ltd Alternate current filter
US20040041634A1 (en) * 2002-08-30 2004-03-04 Kabushiki Kaisha Toshiba High-frequency power amplifier
US20080287089A1 (en) * 2005-11-20 2008-11-20 Martin Alles Input filter for image frequency suppression
US20110133853A1 (en) * 2009-12-04 2011-06-09 Renesas Electronics Corporation Semiconductor device with filter circuit
CN202042905U (en) * 2011-04-26 2011-11-16 湖北中兴电力试验研究有限公司 Double tuned filter applied to automatic tracing compensation arc suppression coil complete device
CN102394664A (en) * 2011-11-04 2012-03-28 物联微电子(常熟)有限公司 Frequency modulation reception device capable of automatic interference elimination and method

Also Published As

Publication number Publication date
WO2013171700A1 (en) 2013-11-21
GB2502090A (en) 2013-11-20
GB201208545D0 (en) 2012-06-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140102 AND 20140108

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140109 AND 20140115

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170706 AND 20170715

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170515