GB450286A - Improvements relating to coils for use in high-frequency electrical apparatus - Google Patents
Improvements relating to coils for use in high-frequency electrical apparatusInfo
- Publication number
- GB450286A GB450286A GB28252/35A GB2825235A GB450286A GB 450286 A GB450286 A GB 450286A GB 28252/35 A GB28252/35 A GB 28252/35A GB 2825235 A GB2825235 A GB 2825235A GB 450286 A GB450286 A GB 450286A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic
- coils
- parts
- coupling
- coil
- 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
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000000696 magnetic material Substances 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000012216 screening Methods 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
- H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
450,286. High-frequency transformers ; inductances. STEATIT-MAGNESIA AKT.-GES., 8, Florastrasse, Pankow, Berlin. Oct. 12, 1935, Nos. 28252 and 28253. Convention dates, Oct. 12, 1934. [Class 38 (ii)] [See also Groups XXXVI and XL] In a high-frequency coil having a pot-type or other hollow core b1 made in two parts, the parts are held together by a sleeve c1 of low loss material within which a further core part d1 of high frequency iron is arranged so as to be capable of displacement. The part dl may be in screw-threaded engagement with the sleeve and may be slotted at both ends for adjustment by a screw-driver. A pair of such coils forming an intermediate frequency transformer may be mounted in a common screening casing f either side by side, Fig. 4, or end to end, Fig. 5, the core parts dl, d2 forming balancing means. The two coil units may be adjustably mounted with respect to each other for varying the coupling between them. The coupling may also be varied by providing movable screens of magnetic or non-magnetic or partly magnetic and partly non-magnetic material between the coils. In the arrangement of Fig. 4, a magnetic ring k with a helical upper edge is mounted within a non-magnetic cylinder i surrounding the coil b2, and the coupling between the two coils is varied by rotating the parts i, k so as to vary the proportion of magnetic and non-magnetic material between them. The parallel condensers e associated with the coils are mounted below an insulating base a upon which the coils are mounted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE450286X | 1934-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB450286A true GB450286A (en) | 1936-07-14 |
Family
ID=6538375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28252/35A Expired GB450286A (en) | 1934-10-12 | 1935-10-12 | Improvements relating to coils for use in high-frequency electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB450286A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE969385C (en) * | 1950-11-03 | 1958-05-29 | Lorenz C Ag | Adjustable band filter, preferably for high-frequency communications equipment |
| DE1057668B (en) * | 1954-12-14 | 1959-05-21 | British Telecomm Res Ltd | Induction coil assembly |
| DE976763C (en) * | 1951-04-20 | 1964-04-16 | Siemens Ag | Magnetizable pot core for telecommunications coils |
| DE976782C (en) * | 1953-04-15 | 1964-04-23 | Siemens Ag | Coil arrangement with magnetizable core |
| DE977465C (en) * | 1948-11-20 | 1966-07-14 | Philips Nv | Dual-circuit band filter |
-
1935
- 1935-10-12 GB GB28252/35A patent/GB450286A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977465C (en) * | 1948-11-20 | 1966-07-14 | Philips Nv | Dual-circuit band filter |
| DE969385C (en) * | 1950-11-03 | 1958-05-29 | Lorenz C Ag | Adjustable band filter, preferably for high-frequency communications equipment |
| DE976763C (en) * | 1951-04-20 | 1964-04-16 | Siemens Ag | Magnetizable pot core for telecommunications coils |
| DE976782C (en) * | 1953-04-15 | 1964-04-23 | Siemens Ag | Coil arrangement with magnetizable core |
| DE1057668B (en) * | 1954-12-14 | 1959-05-21 | British Telecomm Res Ltd | Induction coil assembly |
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