GB499591A - Improvements in or relating to electric wave filters - Google Patents
Improvements in or relating to electric wave filtersInfo
- Publication number
- GB499591A GB499591A GB20149/37A GB2014937A GB499591A GB 499591 A GB499591 A GB 499591A GB 20149/37 A GB20149/37 A GB 20149/37A GB 2014937 A GB2014937 A GB 2014937A GB 499591 A GB499591 A GB 499591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensers
- coils
- transformers
- low
- frequency
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- 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
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
-
- 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
- H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
499,591. Transformers; inductances. LORENZ AKT.-GES., C. July 21, 1937, Nos. 20149 and 20150. Convention dates, Sept. 7, 1936 and Oct. 2, 1936. [Class 38 (ii)] [Also in Group XL] In a wave filter for separating high-frequency signalling current from low-frequency power current, and for eliminating disturbances, in systems in which both currents are transmitted over the same conductors, the inductance coils 2, 3, 6, 7 and transformers, 4, 8, have outer shells q of high-frequency iron, are arranged in engagement with one another and are threaded on spindles 1, 5 joined by a frame 9 which also carries the condensers 10. The inductances, transformers and condensers are preferably arranged in a screening case 11. The upper coils 2, 3, 4 are connected with condensers 10 to form a low-pass filter, and the lower coils 6, 7, 8 are connected with other condensers 10 to form a high-pass filter as indicated in Fig. 3 (not shown). The coils have hollow cores r of high-frequency iron, and are separated by discs s of similar material. The casing 11 may contain a single filter 2, 3, 4, 10 instead of both low-pass and high-pass filters, Figs. 1, 2 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE499591X | 1936-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB499591A true GB499591A (en) | 1939-01-23 |
Family
ID=6545491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20149/37A Expired GB499591A (en) | 1936-09-07 | 1937-07-21 | Improvements in or relating to electric wave filters |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2227384A (en) |
| BE (1) | BE499591A (en) |
| GB (1) | GB499591A (en) |
| NL (1) | NL47532C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975037C (en) * | 1942-09-29 | 1961-07-13 | Vlieg Corp De | Horizontal drilling machine |
| US2612558A (en) * | 1946-08-13 | 1952-09-30 | Paul W Klipsch | Crossover filter network |
| US2701338A (en) * | 1950-10-30 | 1955-02-01 | Douglas Aircraft Co Inc | Frequency dividing filter for multifrequency antenna systems |
| US2688119A (en) * | 1953-04-20 | 1954-08-31 | Gabriel Co | Printed circuit network system |
| US2855571A (en) * | 1955-11-22 | 1958-10-07 | Hazeltine Research Inc | Inductance device |
| US3324417A (en) * | 1965-03-25 | 1967-06-06 | Gen Cable Corp | Shielded common return pairs and coaxial cable |
| CA899475A (en) * | 1970-10-20 | 1972-05-02 | Lindsay Specialty Products Limited | Signal routing device |
| US5838214A (en) * | 1996-07-08 | 1998-11-17 | Motorola, Inc. | Unitary packaging system for a capacitor and inductor |
-
0
- NL NL47532D patent/NL47532C/xx active
-
1937
- 1937-07-10 US US153073A patent/US2227384A/en not_active Expired - Lifetime
- 1937-07-21 GB GB20149/37A patent/GB499591A/en not_active Expired
-
1950
- 1950-11-24 BE BE499591A patent/BE499591A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2227384A (en) | 1940-12-31 |
| BE499591A (en) | 1951-03-16 |
| NL47532C (en) |
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