GB2002613A - Impedance compensation of transmission lines - Google Patents

Impedance compensation of transmission lines

Info

Publication number
GB2002613A
GB2002613A GB7829878A GB7829878A GB2002613A GB 2002613 A GB2002613 A GB 2002613A GB 7829878 A GB7829878 A GB 7829878A GB 7829878 A GB7829878 A GB 7829878A GB 2002613 A GB2002613 A GB 2002613A
Authority
GB
United Kingdom
Prior art keywords
impedance
transmission lines
impedance compensation
line
network
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
GB7829878A
Other versions
GB2002613B (en
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of GB2002613A publication Critical patent/GB2002613A/en
Application granted granted Critical
Publication of GB2002613B publication Critical patent/GB2002613B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/28—Impedance matching 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
    • H03H11/40—Impedance converters
    • H03H11/44—Negative impedance converters

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

An unconditionally stable impedance matching network for matching a nonloaded voice frequency transmission line to the standard impedance of a repeater on said line, has means 22 to place two effective series resistances between the input and output of the network without affecting the DC, a passive impedance @1 and an active impedance @2 AC coupled T2 across the line connections 21, 25. <IMAGE>
GB7829878A 1977-08-15 1978-07-14 Impedance compensation of transmission lines Expired GB2002613B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA284,716A CA1065973A (en) 1977-08-15 1977-08-15 Impedance compensation of transmission lines

Publications (2)

Publication Number Publication Date
GB2002613A true GB2002613A (en) 1979-02-21
GB2002613B GB2002613B (en) 1982-01-20

Family

ID=4109326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829878A Expired GB2002613B (en) 1977-08-15 1978-07-14 Impedance compensation of transmission lines

Country Status (2)

Country Link
CA (1) CA1065973A (en)
GB (1) GB2002613B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035180A2 (en) * 1980-02-29 1981-09-09 Siemens Aktiengesellschaft Circuit arrangement for increasing the inductance of a transformer
EP0040453A2 (en) * 1980-05-20 1981-11-25 Philips Electronics Uk Limited R.F. impedance determination

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035180A2 (en) * 1980-02-29 1981-09-09 Siemens Aktiengesellschaft Circuit arrangement for increasing the inductance of a transformer
EP0035180A3 (en) * 1980-02-29 1982-08-18 Siemens Aktiengesellschaft Circuit arrangement for increasing the inductance of a transformer
EP0040453A2 (en) * 1980-05-20 1981-11-25 Philips Electronics Uk Limited R.F. impedance determination
EP0040453A3 (en) * 1980-05-20 1982-02-17 Philips Electronic And Associated Industries Limited R.f. impedance determination

Also Published As

Publication number Publication date
CA1065973A (en) 1979-11-06
GB2002613B (en) 1982-01-20

Similar Documents

Publication Publication Date Title
MX9503581A (en) Frequency routing device having a wide and substantially flat passband.
SE8206608D0 (en) ECHO CANCELLER
CA2217894A1 (en) Electrical connector
MY109853A (en) Wideband flat power detector
JPS5725731A (en) Hybrid circuit
GB2002613A (en) Impedance compensation of transmission lines
KR940010601A (en) Telephone device with modem
SE8402056L (en) DEVICE FOR EXTENDING THE DYNAMIC AREA IN AN INTEGRATING OPTICAL ELECTRIC RECEIVER
ES393619A1 (en) Telephone set with transmission by microphone and amplifier and reception by loudspeaker
DE2960124D1 (en) Circuit arrangement for the ungrounded transmission of signals across points of isolation in communication systems
GB1050196A (en)
DE3875028D1 (en) Echo compensator.
FR2457041A1 (en) TERMINATOR FOR TELEPHONE INSTALLATIONS
JPS5528616A (en) Drive system for transmission line
GB2005507A (en) Negative impedance converters
JPS53138261A (en) Integrated circuit device
JPS5436104A (en) Tripartite communication circuit
ES440331A1 (en) Negative impedance repeater with double amplification, for telephone lines
JPS53104109A (en) Coupling system with open type transmission line
SE8102381L (en) UNIVERSAL QUICK PHONE DEVICE
JPS56110323A (en) Branching device
JPS5621432A (en) Data way
GB1258677A (en)
YU183879A (en) Impedance network and circuit for the control of connections of telecommunication lines using this network
DE59108780D1 (en) Circuit arrangement for compensation of impulse interference

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee