GB1174709A - A Symmetrical Polyphase Network - Google Patents

A Symmetrical Polyphase Network

Info

Publication number
GB1174709A
GB1174709A GB27161/68A GB2716168A GB1174709A GB 1174709 A GB1174709 A GB 1174709A GB 27161/68 A GB27161/68 A GB 27161/68A GB 2716168 A GB2716168 A GB 2716168A GB 1174709 A GB1174709 A GB 1174709A
Authority
GB
United Kingdom
Prior art keywords
phase
input
transistor
reactances
port
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
GB27161/68A
Other languages
English (en)
Inventor
Michael John Gingell
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB27161/68A priority Critical patent/GB1174709A/en
Priority to US826149A priority patent/US3618133A/en
Priority to BE733816D priority patent/BE733816A/xx
Priority to DE19691928229 priority patent/DE1928229C/de
Priority to ES368051A priority patent/ES368051A1/es
Priority to NO692303A priority patent/NO132295C/no
Priority to CH864069A priority patent/CH496364A/de
Priority to NL6908700A priority patent/NL6908700A/xx
Priority to BR209572/69A priority patent/BR6909572D0/pt
Publication of GB1174709A publication Critical patent/GB1174709A/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
    • H03H11/16—Networks for phase shifting
    • H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output

Landscapes

  • Networks Using Active Elements (AREA)
  • Amplitude Modulation (AREA)
GB27161/68A 1968-06-07 1968-06-07 A Symmetrical Polyphase Network Expired GB1174709A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB27161/68A GB1174709A (en) 1968-06-07 1968-06-07 A Symmetrical Polyphase Network
US826149A US3618133A (en) 1968-06-07 1969-05-20 Symmetrical polyphase networks utilizing constant reactances
BE733816D BE733816A (pt) 1968-06-07 1969-05-30
DE19691928229 DE1928229C (de) 1968-06-07 1969-06-03 Symmetrische Vielphasenschaltung der elektrischen Nachnchtentnik
ES368051A ES368051A1 (es) 1968-06-07 1969-06-04 Dispositivo polifasico simetrico.
NO692303A NO132295C (pt) 1968-06-07 1969-06-04
CH864069A CH496364A (de) 1968-06-07 1969-06-06 Symmetrische Mehrphasenschaltung
NL6908700A NL6908700A (pt) 1968-06-07 1969-06-06
BR209572/69A BR6909572D0 (pt) 1968-06-07 1969-06-09 Redes polifasicas simetricas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27161/68A GB1174709A (en) 1968-06-07 1968-06-07 A Symmetrical Polyphase Network

Publications (1)

Publication Number Publication Date
GB1174709A true GB1174709A (en) 1969-12-17

Family

ID=10255190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27161/68A Expired GB1174709A (en) 1968-06-07 1968-06-07 A Symmetrical Polyphase Network

Country Status (8)

Country Link
US (1) US3618133A (pt)
BE (1) BE733816A (pt)
BR (1) BR6909572D0 (pt)
CH (1) CH496364A (pt)
ES (1) ES368051A1 (pt)
GB (1) GB1174709A (pt)
NL (1) NL6908700A (pt)
NO (1) NO132295C (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153020A2 (en) * 1984-02-16 1985-08-28 Northern Telecom Limited Symmetrical polyphase networks
GB2168868A (en) * 1984-12-19 1986-06-25 Philips Electronic Associated Polyphase filters

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1371344A (en) * 1970-10-17 1974-10-23 Licentia Gmbh Filter circuit with gyrators and capacitors
GB1585097A (en) * 1976-06-23 1981-02-25 Post Office Active filter
US4123712A (en) * 1977-04-22 1978-10-31 Northern Telecom Limited Symmetrical polyphase network
US6025765A (en) * 1998-04-08 2000-02-15 Nortel Networks Corporation Gyrator with loop amplifiers connected to inductive elements
EP1011191B1 (fr) * 1998-12-08 2009-01-07 Nxp B.V. Dispositif de filtrage pour éliminer une composante continue
US6388543B1 (en) * 2000-09-18 2002-05-14 Conexant Systems, Inc. System for eight-phase 45° polyphase filter with amplitude matching
US6836180B1 (en) * 2003-06-23 2004-12-28 M2 Networks, Inc. Poly-phase network with resonant circuit bandpass shaping
WO2019202685A1 (ja) * 2018-04-18 2019-10-24 三菱電機株式会社 ポリフェーズフィルタ
WO2019202686A1 (ja) * 2018-04-18 2019-10-24 三菱電機株式会社 ポリフェーズフィルタ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418643A (en) * 1944-06-05 1947-04-08 Closman P Stocker Magnetic frequency changer
US2984799A (en) * 1959-05-18 1961-05-16 Collins Radio Co Broadband-phase r.-c. network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153020A2 (en) * 1984-02-16 1985-08-28 Northern Telecom Limited Symmetrical polyphase networks
EP0153020A3 (en) * 1984-02-16 1988-01-07 Northern Telecom Limited Symmetrical polyphase networks
GB2168868A (en) * 1984-12-19 1986-06-25 Philips Electronic Associated Polyphase filters

Also Published As

Publication number Publication date
US3618133A (en) 1971-11-02
BR6909572D0 (pt) 1973-03-08
DE1928229B2 (de) 1972-10-12
BE733816A (pt) 1969-12-01
CH496364A (de) 1970-09-15
NL6908700A (pt) 1969-12-09
ES368051A1 (es) 1971-05-01
NO132295B (pt) 1975-07-07
NO132295C (pt) 1975-10-15
DE1928229A1 (de) 1970-01-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee