Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
  • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
  • H03H9/46—Filters
  • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
  • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F19/00—Fixed transformers or mutual inductances of the signal type
  • H01F19/02—Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F19/00—Fixed transformers or mutual inductances of the signal type
  • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
  • H01F19/06—Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
  • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
• • 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
  • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
• • 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
  • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
  • H03H7/425—Balance-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)

Applications Claiming Priority (1)

Publications (1)

Family

ID=23058943

Family Applications (1)

Country Status (4)

Families Citing this family (2)

• 0
  • NL NL58138D patent/NL58138C/xx active
• 1939
  • 1939-06-02 US US276981A patent/US2249440A/en not_active Expired - Lifetime
• 1940
  • 1940-03-29 GB GB5685/40A patent/GB534603A/en not_active Expired
• 1944
  • 1944-11-17 CH CH255231D patent/CH255231A/de unknown

Also Published As

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