GB506439A - Improvements in or relating to modulating circuit arrangements for high frequency magnetron oscillators - Google Patents
Improvements in or relating to modulating circuit arrangements for high frequency magnetron oscillatorsInfo
- Publication number
- GB506439A GB506439A GB2098/38A GB209838A GB506439A GB 506439 A GB506439 A GB 506439A GB 2098/38 A GB2098/38 A GB 2098/38A GB 209838 A GB209838 A GB 209838A GB 506439 A GB506439 A GB 506439A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- batteries
- modulating
- high frequency
- arrangements
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/28—Amplitude modulation by means of transit-time tube
- H03C1/30—Amplitude modulation by means of transit-time tube by means of a magnetron
Landscapes
- Microwave Tubes (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
506,439. Valve modulating circuits. SIEMENS & HALSKE AKT.-GES. Jan. 21, 1938, No. 2098. Convention date, Jan. 21, 1937. [Class 40 (v)] A high-frequency magnetron generator is substantially fully modulated without causing cessation of oscillation by applying to two anodes or anode groups different D.C. potentials and varying them in opposite directions by means of the modulation, so that the slope of the negative part of the characteristic which corresponds to high frequency operation remains unchanged. The anode segments 22, 23 receive different positive voltages with respect to the cathode 28 from batteries 24, 25 through chokes 26, 27 ; and modulating potentials are applied from a source 33 in push-pull to the anode segments by means of a transformer 31. In other arrangements, Figs. 9, 10 (not shown), batteries 24, 25 are replaced by arrangements of batteries with tappings. The same results may also be obtained by simultaneously varying several electrical values. Thus the anode current can be varied by modulating the total emission current, and the change in 'slope of the negative resistance characteristic can be compensated by simultaneous variation of the magnetic field, or the total anode voltage, or one segment voltage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE506439X | 1937-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB506439A true GB506439A (en) | 1939-05-30 |
Family
ID=6546553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2098/38A Expired GB506439A (en) | 1937-01-21 | 1938-01-21 | Improvements in or relating to modulating circuit arrangements for high frequency magnetron oscillators |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2220968A (en) |
| GB (1) | GB506439A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2572707A (en) * | 1939-09-19 | 1951-10-23 | Csf | Pulse generator |
| NL162137B (en) * | 1950-06-22 | Hayashibara Biochem Lab | PROCESS FOR THE PREPARATION OF PULLULAN. |
-
1938
- 1938-01-21 GB GB2098/38A patent/GB506439A/en not_active Expired
- 1938-01-21 US US186042A patent/US2220968A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2220968A (en) | 1940-11-12 |
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