CH255231A - Wellenfilter. - Google Patents

Wellenfilter.

Info

Publication number
CH255231A
CH255231A CH255231DA CH255231A CH 255231 A CH255231 A CH 255231A CH 255231D A CH255231D A CH 255231DA CH 255231 A CH255231 A CH 255231A
Authority
CH
Switzerland
Prior art keywords
wave filter
wave
filter
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio Ag
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 Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH255231A publication Critical patent/CH255231A/de

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00Fixed transformers or mutual inductances of the signal type
    • H01F19/02Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00Fixed transformers or mutual inductances of the signal type
    • H01F19/04Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/06Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/425Balance-balance networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Filters And Equalizers (AREA)
CH255231D 1939-06-02 1944-11-17 Wellenfilter. CH255231A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US276981A US2249440A (en) 1939-06-02 1939-06-02 Wave filter

Publications (1)

Publication Number Publication Date
CH255231A true CH255231A (de) 1948-06-15

Family

ID=23058943

Family Applications (1)

Application Number Title Priority Date Filing Date
CH255231D CH255231A (de) 1939-06-02 1944-11-17 Wellenfilter.

Country Status (4)

Country Link
US (1) US2249440A (fi)
CH (1) CH255231A (fi)
GB (1) GB534603A (fi)
NL (1) NL58138C (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622704A (fi) * 1961-09-22
NL283485A (fi) * 1961-09-22

Also Published As

Publication number Publication date
NL58138C (fi)
US2249440A (en) 1941-07-15
GB534603A (en) 1941-03-11

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