IT956763B - Nuovo sistema di realizzazione di filtri elettrici - Google Patents
Nuovo sistema di realizzazione di filtri elettriciInfo
- Publication number
- IT956763B IT956763B IT26020/72A IT2602072A IT956763B IT 956763 B IT956763 B IT 956763B IT 26020/72 A IT26020/72 A IT 26020/72A IT 2602072 A IT2602072 A IT 2602072A IT 956763 B IT956763 B IT 956763B
- Authority
- IT
- Italy
- Prior art keywords
- realization
- new system
- electric filters
- filters
- electric
- Prior art date
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
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/175—Series LC in series path
-
- 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
- H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
-
- 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
- H03H7/075—Ladder networks, e.g. electric wave filters
-
- 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)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7206035A FR2173405A5 (it) | 1972-02-23 | 1972-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT956763B true IT956763B (it) | 1973-10-10 |
Family
ID=9093966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT26020/72A IT956763B (it) | 1972-02-23 | 1972-06-22 | Nuovo sistema di realizzazione di filtri elettrici |
Country Status (7)
Country | Link |
---|---|
US (1) | US3755762A (it) |
DE (1) | DE2255186A1 (it) |
FR (1) | FR2173405A5 (it) |
GB (1) | GB1348947A (it) |
IT (1) | IT956763B (it) |
NL (1) | NL172809C (it) |
SU (1) | SU462364A3 (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4272741A (en) * | 1979-04-09 | 1981-06-09 | Varian Associates | Inductive delay line and method of making |
US4210483A (en) * | 1979-04-09 | 1980-07-01 | Variani Associates, Inc. | Apparatus for making an inductive delay line component |
US4287492A (en) * | 1979-08-24 | 1981-09-01 | Tdk Electronics Co., Ltd. | Concentrated constant type delay device |
FR2552601B1 (fr) * | 1983-09-27 | 1988-10-14 | Thomson Csf | Filtre miniature hyperfrequence a resonateurs constitues par des circuits bouchons, couples par des condensateurs |
SE449406B (sv) * | 1985-08-27 | 1987-04-27 | Ellemtel Utvecklings Ab | Forlustbeheftad filteranordning for att undertrycka radiofrekventa storningar pa en tvatradsledning |
GB8713699D0 (en) * | 1987-06-11 | 1987-07-15 | British Telecomm | Optical receiver circuit |
JPH0555856A (ja) * | 1991-08-22 | 1993-03-05 | Tdk Corp | Lcフイルタ |
CN110111993A (zh) * | 2019-06-03 | 2019-08-09 | 四川省正元包装印务有限责任公司 | 一种滤波器的手工制作方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2141573A (en) * | 1934-07-18 | 1938-12-27 | Ferrocart Corp | Antenna coupling system |
US2855571A (en) * | 1955-11-22 | 1958-10-07 | Hazeltine Research Inc | Inductance device |
US2882403A (en) * | 1956-10-25 | 1959-04-14 | Witz Gerhard H De | Use of electrically controllable variable inductor for tuning purposes |
GB821747A (en) * | 1957-05-31 | 1959-10-14 | Standard Telephones Cables Ltd | Resonant unit for filters |
US3195050A (en) * | 1962-12-21 | 1965-07-13 | Philco Corp | Electrical apparatus and method of fabricating it |
-
1972
- 1972-02-23 FR FR7206035A patent/FR2173405A5/fr not_active Expired
- 1972-05-22 US US00255585A patent/US3755762A/en not_active Expired - Lifetime
- 1972-06-19 SU SU1796019A patent/SU462364A3/ru active
- 1972-06-19 GB GB2857372A patent/GB1348947A/en not_active Expired
- 1972-06-21 NL NLAANVRAGE7208495,A patent/NL172809C/xx not_active IP Right Cessation
- 1972-06-22 IT IT26020/72A patent/IT956763B/it active
- 1972-11-10 DE DE2255186A patent/DE2255186A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US3755762A (en) | 1973-08-28 |
DE2255186A1 (de) | 1973-09-06 |
NL172809C (nl) | 1983-10-17 |
GB1348947A (en) | 1974-03-27 |
SU462364A3 (ru) | 1975-02-28 |
NL172809B (nl) | 1983-05-16 |
NL7208495A (it) | 1973-08-27 |
FR2173405A5 (it) | 1973-10-05 |
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