GB546069A - Improvements in high frequency tuned circuits - Google Patents
Improvements in high frequency tuned circuitsInfo
- Publication number
- GB546069A GB546069A GB7822/41A GB782241A GB546069A GB 546069 A GB546069 A GB 546069A GB 7822/41 A GB7822/41 A GB 7822/41A GB 782241 A GB782241 A GB 782241A GB 546069 A GB546069 A GB 546069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resonator
- inductance
- june
- vary
- minimum
- 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
- 239000004020 conductor Substances 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/04—Coaxial resonators
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
546,069. Coil-less resonators ; ; wireless receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 20, 1941, No. 7822. Convention date, June 20, 1940. [Classes 40 (iii) and 40 (v)] A resonator comprising coaxial conductors 1, 2 connected together at one end is tunable by means of a rotatable plate 7 which co-operates with a fixed plate 8 on the inner conductors to vary the capacity of the resonator and is carried by a vane or short-circuited turn 6 which acts by eddy currents to vary the inductance of the resonator, the arrangement being such that when the capacity is a minimum the inductance also is a minimum. The resonator may be used to tune the oscillator of a self-tuning wireless receiver in which the voltage derived from an error detector of known kind is amplified by tubes 18 and controls relays 20, 21 which are oppositely polarized by rectifiers 19 and cause motor 24 to be driven in one direction or the other to correct the tuning of the resonator 1, 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US546069XA | 1940-06-20 | 1940-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB546069A true GB546069A (en) | 1942-06-25 |
Family
ID=21992264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7822/41A Expired GB546069A (en) | 1940-06-20 | 1941-06-20 | Improvements in high frequency tuned circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB546069A (en) |
-
1941
- 1941-06-20 GB GB7822/41A patent/GB546069A/en not_active Expired
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