GB670551A - Improvements in or relating to a fixed frequency difference stabilization system forultra high frequency oscillators - Google Patents
Improvements in or relating to a fixed frequency difference stabilization system forultra high frequency oscillatorsInfo
- Publication number
- GB670551A GB670551A GB14591/41A GB1459141A GB670551A GB 670551 A GB670551 A GB 670551A GB 14591/41 A GB14591/41 A GB 14591/41A GB 1459141 A GB1459141 A GB 1459141A GB 670551 A GB670551 A GB 670551A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- oscillators
- oscillator
- voltages
- voltage
- 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
- 230000006641 stabilisation Effects 0.000 title 1
- 238000011105 stabilization Methods 0.000 title 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
- H03L7/04—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element wherein the frequency-determining element comprises distributed inductance and capacitance
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Particle Accelerators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
670,551. Automatic frequency control systems. LELAND STANFORD JUNIOR UNIVERSITY, BOARD OF TRUSTEES OF. Nov. 12, 1941 [Nov. 20, 1940], No. 14591/41. Class 38 (iv). [Also in Group XL (c)] A plurality of ultra-high-frequency oscillators are stabilized with fixed difference frequencies, the oscillators having electron beam excited electron grouping and energy interchanging resonators, by varying the frequency of at least one of the oscillators by means including a mixer-detector having resonators connected, respectively, to the oscillators to produce sum and difference frequency voltages which are compared with voltage from a master oscillator to produce the frequency-controlling voltages. Fig. 1 shows fixed and variable frequency oscillators of the type disclosed in Specification 523,712 which are coupled to a detector mixer 16 which feeds audio amplifier 24 and limiter 26. As shown, the output is combined with that from a limiter 32 associated with master oscillator 31 in transformers 28, 30, so wound that with the voltages in phase quadrature the rectified voltage across resistance 39 balances that across resistance 43. The sum of the voltages across these resistances is a measure of the error and is used through an amplifier 13 to drive a correcting motor 12 and to control the bias and so the impedance of a valve 9 and thus the accelerating voltage and frequency of oscillator 2. In a modification, Fig. 3, combination of the outputs of limiters 26, 32 is effected in double grid amplifiers 50, 51, the phase reversing valve 48 providing the necessary phase reversal for one of the amplifiers. The system is particularly adapted for wave-guide communication for maintaining separate frequency channels at a desired fixed difference. An additional. buffer resonator 8, as described in Specification 670,571, may be associated with the oscillator 1, Fig. 1, to provide the external coupling to prevent one oscillator from influencing the frequency of the other.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US366358A US2294942A (en) | 1940-11-20 | 1940-11-20 | Fixed frequency difference stablilization system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB670551A true GB670551A (en) | 1952-04-23 |
Family
ID=23442682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14591/41A Expired GB670551A (en) | 1940-11-20 | 1941-11-12 | Improvements in or relating to a fixed frequency difference stabilization system forultra high frequency oscillators |
Country Status (2)
Country | Link |
---|---|
US (2) | US2294942A (en) |
GB (1) | GB670551A (en) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2465341A (en) * | 1941-02-08 | 1949-03-29 | Int Standard Electric Corp | Electric wave transmission system |
US2420264A (en) * | 1941-05-26 | 1947-05-06 | Rost Helge Fabian | Stabilizing means for the control of a frequency modulated ultrashort wave transmitter |
US2439387A (en) * | 1941-11-28 | 1948-04-13 | Sperry Corp | Electronic tuning control |
US2459846A (en) * | 1942-04-09 | 1949-01-25 | Int Standard Electric Corp | Voltage control arrangement |
US2436640A (en) * | 1942-05-07 | 1948-02-24 | Nils Georg Schonander | Device for the frequency modulation of the resonant frequency of cavity resonators |
US2462857A (en) * | 1942-05-19 | 1949-03-01 | Sperry Corp | Automatic tuning control system |
US2586497A (en) * | 1942-05-19 | 1952-02-19 | Sperry Corp | Automatic frequency control system |
US2462856A (en) * | 1942-05-19 | 1949-03-01 | Sperry Corp | Transmitter and/or receiver circuits |
US2482766A (en) * | 1942-07-01 | 1949-09-27 | Sperry Corp | High-frequency modulating system |
US2535043A (en) * | 1943-01-27 | 1950-12-26 | George W Cook | Wave analyzer |
US2476311A (en) * | 1943-02-01 | 1949-07-19 | Sperry Corp | Ultra high frequency discriminator and apparatus |
US2502456A (en) * | 1943-04-02 | 1950-04-04 | Sperry Corp | Ultra high frequency discriminator and apparatus |
GB565413A (en) * | 1943-05-05 | 1944-11-09 | Norman Charles Barford | Improvements in or relating to the frequency modulation of oscillations generated byvelocity-modulation discharge devices |
US2434293A (en) * | 1943-05-11 | 1948-01-13 | Sperry Gyroscope Co Inc | Frequency control of an oscillator of the velocity modulation type |
US2515213A (en) * | 1943-05-20 | 1950-07-18 | Rca Corp | Ultra high frequency communication system |
FR957704A (en) * | 1943-05-26 | 1950-02-24 | ||
US2464818A (en) * | 1943-05-27 | 1949-03-22 | Sperry Corp | Frequency control system |
USRE23271E (en) * | 1943-08-21 | 1950-09-26 | Ultra high frequency circuit | |
US2434294A (en) * | 1943-10-22 | 1948-01-13 | Sperry Gyroscope Co Inc | Frequency control system |
US2562943A (en) * | 1943-12-30 | 1951-08-07 | Sperry Corp | Frequency control apparatus |
US2477616A (en) * | 1944-01-24 | 1949-08-02 | Sperry Corp | Thermally actuated frequency control |
US2421676A (en) * | 1944-04-07 | 1947-06-03 | Rca Corp | Oscillator |
US2418469A (en) * | 1944-05-04 | 1947-04-08 | Bell Telephone Labor Inc | Tuner for multiresonators |
US2514383A (en) * | 1944-08-25 | 1950-07-11 | Sperry Corp | High-frequency cavity resonator apparatus |
US2475074A (en) * | 1944-08-31 | 1949-07-05 | Philco Corp | Frequency stabilizing system |
US2474278A (en) * | 1944-10-02 | 1949-06-28 | Richard H Ranger | Frequency modulated oscillator control |
US2641693A (en) * | 1944-11-18 | 1953-06-09 | Standard Telephones Cables Ltd | Local transmitter frequency control circuit |
US2421725A (en) * | 1944-11-23 | 1947-06-03 | Philco Corp | Variable frequency cavity resonator oscillator |
BE464402A (en) * | 1945-02-06 | |||
US2640964A (en) * | 1945-05-09 | 1953-06-02 | Freedman Samuel | Microwave modulation |
US2564005A (en) * | 1945-06-23 | 1951-08-14 | Halpern Julius | Automatic frequency control system |
US2521700A (en) * | 1946-03-09 | 1950-09-12 | Standard Telephones Cables Ltd | Oscillator control system |
US2553649A (en) * | 1945-10-22 | 1951-05-22 | Richard G Garfitt | Wave guide regulator |
US2515203A (en) * | 1946-01-17 | 1950-07-18 | Edward W Ernst | Tracking mechanism for reflex velocity modulated tubes |
US2806137A (en) * | 1946-02-08 | 1957-09-10 | Homer S Myers | Frequency stabilizer |
US2527730A (en) * | 1946-03-04 | 1950-10-31 | Ralph H Hoglund | Automatic oscillation control |
US2593463A (en) * | 1946-06-21 | 1952-04-22 | Bell Telephone Labor Inc | Frequency stabilized microwave oscillator |
US2570758A (en) * | 1946-09-04 | 1951-10-09 | Rca Corp | Automatic frequency control |
US2568412A (en) * | 1948-03-13 | 1951-09-18 | Rca Corp | Automatic wide range electrical wave generator of high stability |
US2931900A (en) * | 1955-01-31 | 1960-04-05 | David M Goodman | Electrical testing |
NL300306A (en) * | 1955-06-14 |
-
0
- US US22587D patent/USRE22587E/en not_active Expired
-
1940
- 1940-11-20 US US366358A patent/US2294942A/en not_active Expired - Lifetime
-
1941
- 1941-11-12 GB GB14591/41A patent/GB670551A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
USRE22587E (en) | 1945-01-02 |
US2294942A (en) | 1942-09-08 |
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