[go: up one dir, main page]

GB1227812A - - Google Patents

Info

Publication number
GB1227812A
GB1227812A GB1276668A GB1227812DA GB1227812A GB 1227812 A GB1227812 A GB 1227812A GB 1276668 A GB1276668 A GB 1276668A GB 1227812D A GB1227812D A GB 1227812DA GB 1227812 A GB1227812 A GB 1227812A
Authority
GB
United Kingdom
Prior art keywords
port
differential amplifier
differential
amplifiers
following
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
Application number
GB1276668A
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 filed Critical
Publication of GB1227812A publication Critical patent/GB1227812A/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
    • H03H11/38—One-way transmission networks, i.e. unilines

Landscapes

  • Amplifiers (AREA)

Abstract

1,227,812. Signal circulator. POST OFFICE. 12 March, 1969 [15 March, 1968], No. 12766/68. Heading H4R. A signal circulator comprises a number of ports K, K + 1, K + 2 &c., Fig. 2, arranged in a closed cycle, in which a signal applied to one port appears at the following port in the sequence and at no other port. A number of differential amplifiers GK, GK+1, &c., are arranged with each port connected to one input of a respective differential amplifier, and the output of each differential amplifier being applied to both inputs of the following differential amplifier, via respective potential dividers, in such a way as to produce no output in the following differential amplifier. The differential amplifiers may be transistor long-tailed pairs T1, T2, Fig. 3, with a constant current supply transistor T3, the successive stages being coupled by a common collector transistor T4. Differential operational amplifiers may be used, Figs. 4 to 6 (not shown), a particularly simple arrangement (Figs. 5 and 6) being achieved if the operational amplifiers have a gain of two.
GB1276668A 1968-03-15 1968-03-15 Expired GB1227812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1276668 1968-03-15

Publications (1)

Publication Number Publication Date
GB1227812A true GB1227812A (en) 1971-04-07

Family

ID=10010737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1276668A Expired GB1227812A (en) 1968-03-15 1968-03-15

Country Status (3)

Country Link
US (1) US3582803A (en)
CA (1) CA941470A (en)
GB (1) GB1227812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014150502A1 (en) * 2013-03-15 2014-09-25 Viasat, Inc. Active lumped element circulator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2212653B1 (en) * 1973-01-02 1977-04-22 Lignes Telegraph Telephon
DE2419335C2 (en) * 1974-04-22 1983-09-15 Standard Elektrik Lorenz Ag, 7000 Stuttgart Electronic negative resistance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748352A (en) * 1951-12-27 1956-05-29 Bell Telephone Labor Inc Non-reciprocal wave transmission networks
US2849684A (en) * 1953-07-31 1958-08-26 Bell Telephone Labor Inc Non-reciprocal wave transmission
US2867772A (en) * 1956-06-29 1959-01-06 Philip J Allen Microwave circulator
US3377570A (en) * 1966-04-18 1968-04-09 Bell Telephone Labor Inc Four port ferrite circulator having slot symmetrically located between adjacent conducting arms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014150502A1 (en) * 2013-03-15 2014-09-25 Viasat, Inc. Active lumped element circulator
US9197170B2 (en) 2013-03-15 2015-11-24 Viasat, Inc. Active lumped element circulator

Also Published As

Publication number Publication date
CA941470A (en) 1974-02-05
US3582803A (en) 1971-06-01

Similar Documents

Publication Publication Date Title
GB1204617A (en) Circuit providing a floating output
ES426653A1 (en) Complementary field effect transistor differential amplifier
MY7300414A (en) Direct-coupled push-pull amplifier
GB1227812A (en)
ES382017A1 (en) Difference amplifier
GB1248287A (en) Differential amplifier circuits
GB1312176A (en) Push-pull amplifying devices with class d transistorized aplifiers
GB1139744A (en) Improvements in or relating to differential amplifiers employing transistors
GB1252987A (en)
ES354094A1 (en) Operational amplifier
GB1445510A (en) Amplifier circuit
SU605308A1 (en) Differential amplifier
JPS53105962A (en) Voltage amplifier
GB1188049A (en) Amplifier Circuit
GB1420254A (en) Amplifier system and quadruple mass spectrometer combination
GB1227105A (en)
GB1174720A (en) Amplifier Circuit Arrangements
AU2286167A (en) Improvements in or relating to push-pull amplifiers including transistors
ES376128A1 (en) Capacitive store shift register
GB1334674A (en) Electrical circuit arrangements incorporating amplifiers
GB1094460A (en) Parametric amplifier
CA867497A (en) Compensated dc amplifier input stage employing junction field effect transistors
GB1317261A (en) Negative feedback amplifier
AU1439666A (en) Transistor amplifier with a non-inductive push-pull output stage
AU435685B2 (en) High current transistor amplifier stage operable with low current biasing

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)