FR2306572A1 - Filtre de bande accordable a degre ajustable d'attenuation de frequence - Google Patents

Filtre de bande accordable a degre ajustable d'attenuation de frequence

Info

Publication number
FR2306572A1
FR2306572A1 FR7609607A FR7609607A FR2306572A1 FR 2306572 A1 FR2306572 A1 FR 2306572A1 FR 7609607 A FR7609607 A FR 7609607A FR 7609607 A FR7609607 A FR 7609607A FR 2306572 A1 FR2306572 A1 FR 2306572A1
Authority
FR
France
Prior art keywords
band filter
adjustable frequency
frequency attenuation
attenuation degree
tunable band
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
FR7609607A
Other languages
English (en)
Other versions
FR2306572B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2306572A1 publication Critical patent/FR2306572A1/fr
Application granted granted Critical
Publication of FR2306572B1 publication Critical patent/FR2306572B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1766—Parallel LC in series path
FR7609607A 1975-04-04 1976-04-02 Filtre de bande accordable a degre ajustable d'attenuation de frequence Granted FR2306572A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7504004A NL176728C (nl) 1975-04-04 1975-04-04 Afstembaar bandfilter met regelbare onderdrukking.

Publications (2)

Publication Number Publication Date
FR2306572A1 true FR2306572A1 (fr) 1976-10-29
FR2306572B1 FR2306572B1 (fr) 1982-05-07

Family

ID=19823512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609607A Granted FR2306572A1 (fr) 1975-04-04 1976-04-02 Filtre de bande accordable a degre ajustable d'attenuation de frequence

Country Status (7)

Country Link
JP (1) JPS51123039A (fr)
DE (1) DE2613990C2 (fr)
ES (1) ES446630A1 (fr)
FR (1) FR2306572A1 (fr)
GB (1) GB1508714A (fr)
IT (1) IT1057827B (fr)
NL (1) NL176728C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2682837A1 (fr) * 1991-10-17 1993-04-23 Electricite De France Circuit separateur-coupleur directif pour courants porteurs a frequence moyenne sur ligne electrique a basse tension.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2446188B (en) * 2007-02-01 2011-07-27 Blackstar Amplification Ltd Audio amplifier
KR102233949B1 (ko) * 2018-11-16 2021-03-31 주식회사 루트로닉 질관 치료장치용 에너지 전달 모듈, 이를 포함하는 질관 치료장치의 제어방법

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL65491C (fr) * 1943-08-09 1900-01-01
GB390926A (en) * 1932-02-16 1933-04-20 Carl Fichlander Improvements in electrical coupling arrangements for thermionic valve amplifiers
US1932435A (en) * 1931-12-15 1933-10-31 Bell Telephone Labor Inc Transmission network
US2187340A (en) * 1937-07-24 1940-01-16 Telefunken Gmbh Means adapted to regulate the band width
DE691813C (de) * 1936-11-24 1940-06-06 Bernd Meininghaus Resonanzkurve
FR857456A (fr) * 1938-08-12 1940-09-14 Schaub Appbau Gmbh Régulateur radio-électrique de largeur de bande de longueurs d'onde
DE938388C (de) * 1943-03-10 1956-01-26 Siemens Ag Hochfrequenzbandfilter aus drei gekoppelten Kreisen mit Bandbreiten-aenderung durch gegenseitige Verschiebung der Kopplungsspulen
FR2075595A5 (fr) * 1970-01-19 1971-10-08 Cselt Centro Studi Lab Telecom
DE2148038A1 (de) * 1971-09-25 1973-03-29 Licentia Gmbh Bandsperrenfilter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL39540C (fr) * 1933-01-30
US2694150A (en) * 1951-06-29 1954-11-09 Avco Mfg Corp Combined very-high-frequency and ultra-high-frequency tuner for television receivers

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1932435A (en) * 1931-12-15 1933-10-31 Bell Telephone Labor Inc Transmission network
GB390926A (en) * 1932-02-16 1933-04-20 Carl Fichlander Improvements in electrical coupling arrangements for thermionic valve amplifiers
DE691813C (de) * 1936-11-24 1940-06-06 Bernd Meininghaus Resonanzkurve
US2187340A (en) * 1937-07-24 1940-01-16 Telefunken Gmbh Means adapted to regulate the band width
FR857456A (fr) * 1938-08-12 1940-09-14 Schaub Appbau Gmbh Régulateur radio-électrique de largeur de bande de longueurs d'onde
DE938388C (de) * 1943-03-10 1956-01-26 Siemens Ag Hochfrequenzbandfilter aus drei gekoppelten Kreisen mit Bandbreiten-aenderung durch gegenseitige Verschiebung der Kopplungsspulen
NL65491C (fr) * 1943-08-09 1900-01-01
FR2075595A5 (fr) * 1970-01-19 1971-10-08 Cselt Centro Studi Lab Telecom
DE2148038A1 (de) * 1971-09-25 1973-03-29 Licentia Gmbh Bandsperrenfilter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2682837A1 (fr) * 1991-10-17 1993-04-23 Electricite De France Circuit separateur-coupleur directif pour courants porteurs a frequence moyenne sur ligne electrique a basse tension.
WO1993008653A1 (fr) * 1991-10-17 1993-04-29 Electricite De France Circuit separateur-coupleur directif pour courants porteurs a frequence moyenne sur ligne electrique a basse tension
US5497142A (en) * 1991-10-17 1996-03-05 Electricite De France Directional separator-coupler circuit for medium-frequency carrier currents on a low-voltage electrical line

Also Published As

Publication number Publication date
FR2306572B1 (fr) 1982-05-07
DE2613990A1 (de) 1976-10-14
NL176728B (nl) 1984-12-17
JPS566722B2 (fr) 1981-02-13
GB1508714A (en) 1978-04-26
ES446630A1 (es) 1977-06-16
NL176728C (nl) 1985-05-17
DE2613990C2 (de) 1983-06-01
NL7504004A (nl) 1976-10-06
IT1057827B (it) 1982-03-30
JPS51123039A (en) 1976-10-27

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Legal Events

Date Code Title Description
ST Notification of lapse