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
Links
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE622704A (fi) * | 1961-09-22 | |||
NL283485A (fi) * | 1961-09-22 |
-
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
Publication number | Publication date |
---|---|
NL58138C (fi) | |
US2249440A (en) | 1941-07-15 |
GB534603A (en) | 1941-03-11 |
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