FR861340A - Electric transmission networks - Google Patents
Electric transmission networksInfo
- Publication number
- FR861340A FR861340A FR861340DA FR861340A FR 861340 A FR861340 A FR 861340A FR 861340D A FR861340D A FR 861340DA FR 861340 A FR861340 A FR 861340A
- Authority
- FR
- France
- Prior art keywords
- electric transmission
- transmission networks
- networks
- electric
- transmission
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 title 1
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
- H03H9/0023—Balance-unbalance or balance-balance networks
- H03H9/0095—Balance-unbalance or balance-balance networks using bulk acoustic wave devices
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Filters And Equalizers (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US238991A US2216937A (en) | 1938-11-05 | 1938-11-05 | Wave filter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR861340A true FR861340A (en) | 1941-02-06 |
Family
ID=22900166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR861340D Expired FR861340A (en) | 1938-11-05 | 1939-11-04 | Electric transmission networks |
Country Status (3)
Country | Link |
---|---|
US (1) | US2216937A (en) |
FR (1) | FR861340A (en) |
GB (1) | GB533171A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL143184B (en) * | 1947-11-21 | Maschf Augsburg Nuernberg Ag | LOCKING LOCKING DEVICE FOR HINGED BONNET UNIT CONSISTING OF BONNET AND FENDER. | |
US2929031A (en) * | 1957-02-06 | 1960-03-15 | Hermes Electronics Co | Intermediate band width crystal filter |
US2990525A (en) * | 1957-12-12 | 1961-06-27 | Bell Telephone Labor Inc | Wave filter |
JP3389911B2 (en) * | 2000-02-07 | 2003-03-24 | 株式会社村田製作所 | Surface acoustic wave filter, duplexer and communication device |
JP2002152008A (en) * | 2000-11-06 | 2002-05-24 | Alps Electric Co Ltd | Lattice type filter |
JP4468185B2 (en) * | 2003-01-20 | 2010-05-26 | エヌエックスピー ビー ヴィ | Cavity filter structure with equal resonant frequency |
FR2973970B1 (en) * | 2011-04-07 | 2013-04-12 | Commissariat Energie Atomique | DEVICE USING A FILTER BASED ON RESONATORS |
-
1938
- 1938-11-05 US US238991A patent/US2216937A/en not_active Expired - Lifetime
-
1939
- 1939-10-13 GB GB27845/39A patent/GB533171A/en not_active Expired
- 1939-11-04 FR FR861340D patent/FR861340A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2216937A (en) | 1940-10-08 |
GB533171A (en) | 1941-02-07 |
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