GB537918A - Improvements in or relating to ultra high frequency oscillators - Google Patents
Improvements in or relating to ultra high frequency oscillatorsInfo
- Publication number
- GB537918A GB537918A GB31193/39A GB3119339A GB537918A GB 537918 A GB537918 A GB 537918A GB 31193/39 A GB31193/39 A GB 31193/39A GB 3119339 A GB3119339 A GB 3119339A GB 537918 A GB537918 A GB 537918A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrons
- cathode
- cavity
- envelope
- anode
- 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
- 239000002184 metal Substances 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B9/00—Generation of oscillations using transit-time effects
- H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
Landscapes
- Particle Accelerators (AREA)
Abstract
537,918. Electron oscillators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1939, No. 31193. Convention date, Nov. 30, 1938. [Class 39 (i)] In an ultra high frequency oscillator a cloud of electrons move within a resonant cavity 3, Fig. 1, to produce standing electromagnetic waves therein, a loop 25 within the cavity radiating energy. An accelerator anode 9 is mounted within a cathode which is in the form of a frame and a solenoid 15 surrounds the metal envelope ; electrons move towards the anode 9 but are diverted by the magnetic field to pass towards the cathode frame on the side opposite from which they issue. On approach to this side they are retarded and turned back starting oscillations within the cavity. The waves produced increase the amplitude of movement of electrons in phase with the wave causing movement outside of the cathode frame and flow to the metal envelope ; the out-of-phase electrons are slowed up giving up energy to the standing waves, until they fall on the anode 9. The end wall of the cavity is adjustable for tuning. In a modification the cathode 45, Fig. 2, is a circular disc and the accelerator anode 49 a circular grid ; the envelope 43 is biased negatively and the electrons produce circular standing waves. In a modification of this form the cathode 65, Fig. 4, is surrounded by a cylindrical accelerator 71 and a magnetic field causes side movement of the electrons ; in phase electrons are collected by the envelope. In a further construction electrons from the cathode 87, Fig. 5, are directed by electrodes 89 towards a retarding electrode 91 across the opening of a cavity 83 forming part of a sphere. A permanent magnet may be used in place of an electromagnet. The Specification as open to inspection under Sect. 91 also describes an arrangement of centrally arranged cathode and envelope, wherein standing waves are generated without intervening grid. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US537918XA | 1938-11-30 | 1938-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB537918A true GB537918A (en) | 1941-07-14 |
Family
ID=21986569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31193/39A Expired GB537918A (en) | 1938-11-30 | 1939-11-30 | Improvements in or relating to ultra high frequency oscillators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB537918A (en) |
-
1939
- 1939-11-30 GB GB31193/39A patent/GB537918A/en not_active Expired
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