GB364777A - Improvements in or relating to high frequency coupling arrangements - Google Patents
Improvements in or relating to high frequency coupling arrangementsInfo
- Publication number
- GB364777A GB364777A GB36515/30A GB3651530A GB364777A GB 364777 A GB364777 A GB 364777A GB 36515/30 A GB36515/30 A GB 36515/30A GB 3651530 A GB3651530 A GB 3651530A GB 364777 A GB364777 A GB 364777A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coupling
- circuits
- band
- opposition
- dec
- 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 title abstract 7
- 238000010168 coupling process Methods 0.000 title abstract 7
- 238000005859 coupling reaction Methods 0.000 title abstract 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
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
- H03H7/0153—Electrical filters; Controlling thereof
- H03H7/0161—Bandpass filters
Landscapes
- Near-Field Transmission Systems (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
364,777. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, -(Assignees of Braden, R. A. ; 18, Jacobus Place, New York, U.S.A.) Dec. 3, 1930, No. 36515. Convention date, Dec. 3, 1929. [Class 40 (v).] In a tuned band-pass coupling, the coefficient of magnetic coupling between two tuned circuits is automatically varied from a maximum at low frequencies to a minimum at high frequencies by means of an element in which currents are induced in opposition to those creating the normal coupling flux. As shown in Fig. 1, the position of a ring-element 5 of aluminium, silver, copper, or other .lowresistance metal relatively to the coupling coils 2, 3 determines the effective magnetic coupling between the circuits 1, 2 and 3, 4. In Fig. 3, the ring 5 is split, and the two ends connected to a condenser 10, forming an absorption circuit in which the induced currents act in opposition to the normal coupling-flux. In Fig. 4 this arrangement is utilized at 51, 101 to maintain a constant band-width between coupling-circuits 14, 15, 16 and 18, 19, 20 of the band-pass type. It is also utilized at 5, 10 to provide a closer coupling between the aerial and the first amplifier stage at low frequencies than at high, in order to make the receiver equally sensitive throughout a wide frequency range. Ganged tuning-control may be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US364777XA | 1929-12-03 | 1929-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB364777A true GB364777A (en) | 1932-01-14 |
Family
ID=21888804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36515/30A Expired GB364777A (en) | 1929-12-03 | 1930-12-03 | Improvements in or relating to high frequency coupling arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB364777A (en) |
-
1930
- 1930-12-03 GB GB36515/30A patent/GB364777A/en not_active Expired
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