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DE68906289D1 - Daempfungsausgleichschaltung fuer bandsperre fuer frequenzen unter der grenzfrequenz. - Google Patents

Daempfungsausgleichschaltung fuer bandsperre fuer frequenzen unter der grenzfrequenz.

Info

Publication number
DE68906289D1
DE68906289D1 DE8989420049T DE68906289T DE68906289D1 DE 68906289 D1 DE68906289 D1 DE 68906289D1 DE 8989420049 T DE8989420049 T DE 8989420049T DE 68906289 T DE68906289 T DE 68906289T DE 68906289 D1 DE68906289 D1 DE 68906289D1
Authority
DE
Germany
Prior art keywords
limit frequency
damping compensation
band lock
frequencies under
frequencies
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
DE8989420049T
Other languages
English (en)
Other versions
DE68906289T2 (de
Inventor
Frederic Lemaire
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.)
STMicroelectronics SA
Original Assignee
SGS Thomson Microelectronics SA
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 SGS Thomson Microelectronics SA filed Critical SGS Thomson Microelectronics SA
Application granted granted Critical
Publication of DE68906289D1 publication Critical patent/DE68906289D1/de
Publication of DE68906289T2 publication Critical patent/DE68906289T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0461—Current mode filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Filters And Equalizers (AREA)
DE89420049T 1988-02-16 1989-02-15 Dämpfungsausgleichschaltung für Bandsperre für Frequenzen unter der Grenzfrequenz. Expired - Fee Related DE68906289T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8802176A FR2627335B1 (fr) 1988-02-16 1988-02-16 Circuit de compensation de l'attenuation d'un filtre coupe-bande a des frequences inferieures a sa frequence de coupure

Publications (2)

Publication Number Publication Date
DE68906289D1 true DE68906289D1 (de) 1993-06-09
DE68906289T2 DE68906289T2 (de) 1993-12-16

Family

ID=9363533

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89420049T Expired - Fee Related DE68906289T2 (de) 1988-02-16 1989-02-15 Dämpfungsausgleichschaltung für Bandsperre für Frequenzen unter der Grenzfrequenz.

Country Status (6)

Country Link
US (1) US4920563A (de)
EP (1) EP0329575B1 (de)
JP (1) JPH01246909A (de)
KR (1) KR890013879A (de)
DE (1) DE68906289T2 (de)
FR (1) FR2627335B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072200A (en) * 1989-11-24 1991-12-10 Bela Ranky Combination of active and passive filters
US4994693A (en) * 1989-11-30 1991-02-19 Northern Telecom Limited Second order active filters
US5818309A (en) * 1996-12-21 1998-10-06 Hughes Electronics Corporation Microwave active notch filter and operating method with photonic bandgap crystal feedback loop
US10694466B2 (en) 2017-06-20 2020-06-23 University Of South Carolina Power optimization for a unit cell metamaterial energy harvester

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078205A (en) * 1975-11-03 1978-03-07 Sundstrand Data Control, Inc. Electronic filter circuit
US4383229A (en) * 1981-07-20 1983-05-10 Circuit Research Labs Resonant filter clipper circuit
CH662021A5 (de) * 1983-08-30 1987-08-31 Sodeco Compteurs De Geneve Bandsperre mit einer hoeheren daempfung als 40 db zum sperren einer uebertragungsrichtung eines durch einen generator erzeugten hilfssignals in einem uebertragungssystem.
JPS63157502A (ja) * 1986-12-20 1988-06-30 Murata Mfg Co Ltd 伝送回路

Also Published As

Publication number Publication date
EP0329575A1 (de) 1989-08-23
FR2627335A1 (fr) 1989-08-18
EP0329575B1 (de) 1993-05-05
DE68906289T2 (de) 1993-12-16
US4920563A (en) 1990-04-24
JPH01246909A (ja) 1989-10-02
KR890013879A (ko) 1989-09-26
FR2627335B1 (fr) 1990-07-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee