DE1919808B2 - Zweikreis bandfilter fuer die zwischenfrequenzstufe von ueberlagerungsempfaengern - Google Patents

Zweikreis bandfilter fuer die zwischenfrequenzstufe von ueberlagerungsempfaengern

Info

Publication number
DE1919808B2
DE1919808B2 DE19691919808 DE1919808A DE1919808B2 DE 1919808 B2 DE1919808 B2 DE 1919808B2 DE 19691919808 DE19691919808 DE 19691919808 DE 1919808 A DE1919808 A DE 1919808A DE 1919808 B2 DE1919808 B2 DE 1919808B2
Authority
DE
Germany
Prior art keywords
intermediate frequency
band filter
frequency level
circle band
overlay
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.)
Withdrawn
Application number
DE19691919808
Other languages
English (en)
Other versions
DE1919808A1 (de
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 DE1919808A1 publication Critical patent/DE1919808A1/de
Publication of DE1919808B2 publication Critical patent/DE1919808B2/de
Withdrawn legal-status Critical Current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
    • H03H7/0169—Intermediate frequency filters
    • H03H7/0184—Intermediate frequency filters with ferromagnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • 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
    • H03H7/1775—Parallel LC in shunt or branch path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
DE19691919808 1968-04-18 1969-04-18 Zweikreis bandfilter fuer die zwischenfrequenzstufe von ueberlagerungsempfaengern Withdrawn DE1919808B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3263168 1968-04-18

Publications (2)

Publication Number Publication Date
DE1919808A1 DE1919808A1 (de) 1969-10-23
DE1919808B2 true DE1919808B2 (de) 1971-10-14

Family

ID=12364184

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691919808 Withdrawn DE1919808B2 (de) 1968-04-18 1969-04-18 Zweikreis bandfilter fuer die zwischenfrequenzstufe von ueberlagerungsempfaengern

Country Status (4)

Country Link
US (1) US3593245A (de)
DE (1) DE1919808B2 (de)
FR (1) FR2006414A1 (de)
GB (1) GB1236687A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558295A (en) * 1982-11-05 1985-12-10 Spang & Company Tunable-inductance magnetically-soft ferrite core structures
US4999743A (en) * 1989-09-27 1991-03-12 At&T Bell Laboratories Transformer with included current sensing element
GB9304522D0 (en) * 1993-03-05 1993-04-21 Lucas Ind Plc Differential transformer arrangement

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634923A (en) * 1924-07-15 1927-07-05 J C Thullen Transformer
US1978600A (en) * 1933-07-08 1934-10-30 Johnson Lab Inc Permeability-tuned resonant circuit
US2318415A (en) * 1939-07-31 1943-05-04 Gen Electric High-frequency iron core
US2438770A (en) * 1943-06-05 1948-03-30 Gen Electric Adjustable mutual coupling
US2388295A (en) * 1943-07-02 1945-11-06 Gen Electric Mutual coupling
GB580782A (en) * 1943-07-21 1946-09-19 British Thomson Houston Co Ltd Improvements in radio frequency transformers
US2435630A (en) * 1945-06-02 1948-02-10 Automatic Mfg Corp Tuned transformer assembly
US2483919A (en) * 1948-05-29 1949-10-04 Automatic Mfg Corp Coil and condenser assembly
GB744234A (en) * 1950-12-16 1956-02-01 Kurt Kaschke Dust-core for the coils of electrical communication circuits
US2837726A (en) * 1953-07-01 1958-06-03 Pearlman William Reluctance tuned radio frequency coil
US2823359A (en) * 1954-06-01 1958-02-11 Rca Corp Miniature intermediate-frequency transformer
US3155895A (en) * 1960-04-20 1964-11-03 Adams Electronics Inc Coil assembly with threaded stem core

Also Published As

Publication number Publication date
GB1236687A (en) 1971-06-23
FR2006414A1 (de) 1969-12-26
DE1919808A1 (de) 1969-10-23
US3593245A (en) 1971-07-13

Similar Documents

Publication Publication Date Title
AT305371B (de) Verlustbehaftetes Hochfrequenzfilter
FI52547C (fi) Band foer bandfordon
FI56595B (fi) Foerfarande foer framstaellning av en skiktkondensator
SE408374B (sv) Bandfilter
SE387494B (sv) Radiofrekvensfilter
DK132162C (da) Bandfilter
BR7202745D0 (pt) Filtro de n-trajetos
FI53573C (fi) Foerfarande foer framstaellning av kinoxalin-di-n-oxider
CH483754A (fr) Circuit diviseur de fréquence
DE1919808B2 (de) Zweikreis bandfilter fuer die zwischenfrequenzstufe von ueberlagerungsempfaengern
CH494054A (de) Filterpresse
AT323810B (de) Überlagerungsempfänger
DE1911960B2 (de) Hochfrequenztrennfilter
CH524933A (fr) Structure logique de division de fréquence
AT322451B (de) Frequenzteilerschaltung
BE765118A (fr) Altimetre radio
DE2040081B2 (de) Uhf-tuner
CH481528A (de) Detektorkreis für die Demodulation von FM-Signalen
IT1014621B (it) Filtro ad agganciamento di frequenza
AR197629A1 (es) Sintonizadores de frecuencia ultraelevada
CH502022A (de) Frequenzdiskriminator
CH469404A (fr) Diviseur de fréquence
BR7016630D0 (pt) Circuito multiplicador de frequencia
CH524290A (de) Schaltungsanordnung zur Unterdrückung von Störfrequenzen
BR7017181D0 (pt) Detector de frequencia modulada de faixa limitada

Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EF Willingness to grant licences
8339 Ceased/non-payment of the annual fee