EP0098801A3 - Line with divided low-pass filter - Google Patents

Line with divided low-pass filter Download PDF

Info

Publication number
EP0098801A3
EP0098801A3 EP83810289A EP83810289A EP0098801A3 EP 0098801 A3 EP0098801 A3 EP 0098801A3 EP 83810289 A EP83810289 A EP 83810289A EP 83810289 A EP83810289 A EP 83810289A EP 0098801 A3 EP0098801 A3 EP 0098801A3
Authority
EP
European Patent Office
Prior art keywords
line
section
wave impedance
spurious signals
pass 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.)
Granted
Application number
EP83810289A
Other languages
German (de)
Other versions
EP0098801B1 (en
EP0098801A2 (en
Inventor
Jean-Joseph Max
Arvind Shah
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.)
Feller AG
Original Assignee
Feller AG
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 Feller AG filed Critical Feller AG
Priority to AT83810289T priority Critical patent/ATE24983T1/en
Publication of EP0098801A2 publication Critical patent/EP0098801A2/en
Publication of EP0098801A3 publication Critical patent/EP0098801A3/en
Application granted granted Critical
Publication of EP0098801B1 publication Critical patent/EP0098801B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/202—Coaxial filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1895—Particular features or applications

Abstract

For suppression of high-frequency spurious signals (noise) present on an electrical transmission line, the line incorporates at least one section comprising a distributed low-pass filter. This section is constructed so that its wave impedance (Z1) has a different value than the wave impedance (Z0) of the neighboring line sections. This filter line section additionally provides considerable dielectric losses and/or skin effect losses. At both ends of the filter line section, at which the wave impedance changes, multiple reflections arise that attenuate the high-frequency spurious signals (noise). The dielectric or skin effect losses produce strong attenuation of the undesired resonances that arise from the reflections, as well as further attenuation of spurious signals in the highest frequency region.
EP83810289A 1982-07-01 1983-06-29 Line with divided low-pass filter Expired EP0098801B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810289T ATE24983T1 (en) 1982-07-01 1983-06-29 LINE WITH DISTRIBUTED LOW-PASS FILTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4021/82 1982-07-01
CH4021/82A CH656738A5 (en) 1982-07-01 1982-07-01 LINE distributed LOW PASS.

Publications (3)

Publication Number Publication Date
EP0098801A2 EP0098801A2 (en) 1984-01-18
EP0098801A3 true EP0098801A3 (en) 1984-07-18
EP0098801B1 EP0098801B1 (en) 1987-01-14

Family

ID=4268337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810289A Expired EP0098801B1 (en) 1982-07-01 1983-06-29 Line with divided low-pass filter

Country Status (5)

Country Link
US (1) US4683450A (en)
EP (1) EP0098801B1 (en)
AT (1) ATE24983T1 (en)
CH (1) CH656738A5 (en)
DE (1) DE3369228D1 (en)

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US4772224A (en) * 1987-09-02 1988-09-20 Corcom, Inc. Modular electrical connector
US4849981A (en) * 1987-10-05 1989-07-18 General Electric Company High frequency signal driver for a laser diode and method of forming same
US4813047A (en) * 1987-10-05 1989-03-14 General Electric Company High frequency signal driver for a laser diode and method of forming same
DE3932846A1 (en) * 1989-10-02 1991-04-11 Holger Dipl Ing Altmaier Radio interference filter - has symmetrical conductor system with centre strip and side branches embedded in resinous material which absorbs HF energy
US5142252A (en) * 1990-10-24 1992-08-25 Brisson Bruce A Audio signal transmission line with a low pass filter
DE59913839D1 (en) 1999-12-08 2006-10-19 Current Comm Internat Holding ARRANGEMENT FOR TRANSMITTING MESSAGES VIA A LOW VOLTAGE POWER SUPPLY NETWORK
US7176786B2 (en) * 2000-01-20 2007-02-13 Current Technologies, Llc Method of isolating data in a power line communications network
EP1252727A1 (en) 2000-01-20 2002-10-30 Current Technologies LLC Method of isolating data in a power line communication network
US7103240B2 (en) 2001-02-14 2006-09-05 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US6965302B2 (en) 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
US6998962B2 (en) 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
AU2001255401B2 (en) * 2000-04-14 2005-12-01 Current Technologies, Llc Digital communications utilizing medium voltage power distribution lines
US6621373B1 (en) * 2000-05-26 2003-09-16 Rambus Inc. Apparatus and method for utilizing a lossy dielectric substrate in a high speed digital system
US6980089B1 (en) * 2000-08-09 2005-12-27 Current Technologies, Llc Non-intrusive coupling to shielded power cable
EP1371219A4 (en) 2001-02-14 2006-06-21 Current Tech Llc Data communication over a power line
US7053756B2 (en) 2001-12-21 2006-05-30 Current Technologies, Llc Facilitating communication of data signals on electric power systems
US7199699B1 (en) 2002-02-19 2007-04-03 Current Technologies, Llc Facilitating communication with power line communication devices
JP3756129B2 (en) * 2002-06-11 2006-03-15 Ｎｅｃトーキン株式会社 Transmission line type noise filter
US7102478B2 (en) 2002-06-21 2006-09-05 Current Technologies, Llc Power line coupling device and method of using the same
US6982611B2 (en) 2002-06-24 2006-01-03 Current Technologies, Llc Power line coupling device and method of using the same
US7132819B1 (en) 2002-11-12 2006-11-07 Current Technologies, Llc Floating power supply and method of using the same
US7076378B1 (en) 2002-11-13 2006-07-11 Current Technologies, Llc Device and method for providing power line characteristics and diagnostics
US6980091B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Power line communication system and method of operating the same
US7064654B2 (en) 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US6980090B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Device and method for coupling with electrical distribution network infrastructure to provide communications
US6965303B2 (en) 2002-12-10 2005-11-15 Current Technologies, Llc Power line communication system and method
US7075414B2 (en) 2003-05-13 2006-07-11 Current Technologies, Llc Device and method for communicating data signals through multiple power line conductors
US7046124B2 (en) 2003-01-21 2006-05-16 Current Technologies, Llc Power line coupling device and method of using the same
US7308103B2 (en) 2003-05-08 2007-12-11 Current Technologies, Llc Power line communication device and method of using the same
US7460467B1 (en) 2003-07-23 2008-12-02 Current Technologies, Llc Voice-over-IP network test device and method
US7113134B1 (en) 2004-03-12 2006-09-26 Current Technologies, Llc Transformer antenna device and method of using the same
JP2006279462A (en) * 2005-03-29 2006-10-12 Hitachi Metals Ltd Electric noise filter and electric noise removal method
US7714682B2 (en) * 2007-06-21 2010-05-11 Current Technologies, Llc Power line data signal attenuation device and method
TWI381575B (en) * 2008-12-19 2013-01-01 Askey Computer Corp A carrier for transmitting high frequency signal and layout method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1900962A (en) * 1929-09-18 1933-03-14 Int Standard Electric Corp Continuously loaded telegraph cable
US2228797A (en) * 1937-05-24 1941-01-14 Company Le Conducteur Electr B Manufacture of telephone cables
DE1007838B (en) * 1954-06-04 1957-05-09 Siemens Ag Coaxial high-frequency cable for the transmission of high-frequency currents of short wavelengths
FR1479228A (en) * 1965-02-19 1967-05-05 High frequency filter structure
DE1790316B1 (en) * 1967-09-22 1976-07-08 Plath Naut Elektron Tech CABLE FOR ANTENNA SYSTEM
GB1523720A (en) * 1975-12-02 1978-09-06 Secr Defence Suppression of induced currents in cables

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US2267371A (en) * 1937-03-13 1941-12-23 Telefunken Gmbh Feeder network
GB579414A (en) * 1941-10-15 1946-08-02 Standard Telephones Cables Ltd Improvements in or relating to electric wave filters
US2438913A (en) * 1941-10-31 1948-04-06 Sperry Corp High-frequency filter structure
US2438367A (en) * 1942-10-24 1948-03-23 Gen Electric Transmitter-receiver switching system
US2577510A (en) * 1946-04-02 1951-12-04 Seymour B Cohn Microwave filter
US2641646A (en) * 1949-08-10 1953-06-09 Gen Electric Coaxial line filter structure
US2700136A (en) * 1950-11-27 1955-01-18 Tobe Deutschmann Corp Line filter
US3144624A (en) * 1960-08-01 1964-08-11 C A Rypinski Company Coaxial wave filter
US3189847A (en) * 1961-05-29 1965-06-15 Ibm D. c. power distribution system
US3219951A (en) * 1963-05-03 1965-11-23 Don B Clark Interference attenuating power conductor utilizing intensified skin effect to attenuate high frequencies
US3384061A (en) * 1966-03-28 1968-05-21 Gen Motors Corp Means for suppressing ignition interference
US3600711A (en) * 1969-08-13 1971-08-17 Varian Associates Coaxial filter having harmonic reflective and absorptive means
US3909755A (en) * 1974-07-18 1975-09-30 Us Army Low pass microwave filter
US3984792A (en) * 1974-07-31 1976-10-05 International Business Machines Corporation Precise coaxial attenuator for picosecond pulses
US4347487A (en) * 1980-11-25 1982-08-31 Raychem Corporation High frequency attenuation cable
US4376920A (en) * 1981-04-01 1983-03-15 Smith Kenneth L Shielded radio frequency transmission cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1900962A (en) * 1929-09-18 1933-03-14 Int Standard Electric Corp Continuously loaded telegraph cable
US2228797A (en) * 1937-05-24 1941-01-14 Company Le Conducteur Electr B Manufacture of telephone cables
DE1007838B (en) * 1954-06-04 1957-05-09 Siemens Ag Coaxial high-frequency cable for the transmission of high-frequency currents of short wavelengths
FR1479228A (en) * 1965-02-19 1967-05-05 High frequency filter structure
DE1790316B1 (en) * 1967-09-22 1976-07-08 Plath Naut Elektron Tech CABLE FOR ANTENNA SYSTEM
GB1523720A (en) * 1975-12-02 1978-09-06 Secr Defence Suppression of induced currents in cables

Also Published As

Publication number Publication date
EP0098801B1 (en) 1987-01-14
CH656738A5 (en) 1986-07-15
EP0098801A2 (en) 1984-01-18
US4683450A (en) 1987-07-28
ATE24983T1 (en) 1987-01-15
DE3369228D1 (en) 1987-02-19

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