GB661082A - Improvements in and relating to automatic frequency control - Google Patents

Improvements in and relating to automatic frequency control

Info

Publication number
GB661082A
GB661082A GB6152/47A GB615247A GB661082A GB 661082 A GB661082 A GB 661082A GB 6152/47 A GB6152/47 A GB 6152/47A GB 615247 A GB615247 A GB 615247A GB 661082 A GB661082 A GB 661082A
Authority
GB
United Kingdom
Prior art keywords
frequency
voltage
oscillator
output
valve
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
Application number
GB6152/47A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB661082A publication Critical patent/GB661082A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1817—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator
    • H03B5/1835—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator the active element in the amplifier being a vacuum tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/047—Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal
    • 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
    • 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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB6152/47A 1946-03-04 1947-03-04 Improvements in and relating to automatic frequency control Expired GB661082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US661082XA 1946-03-04 1946-03-04

Publications (1)

Publication Number Publication Date
GB661082A true GB661082A (en) 1951-11-14

Family

ID=22067293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6152/47A Expired GB661082A (en) 1946-03-04 1947-03-04 Improvements in and relating to automatic frequency control

Country Status (3)

Country Link
BE (1) BE482631A (enrdf_load_stackoverflow)
FR (1) FR963719A (enrdf_load_stackoverflow)
GB (1) GB661082A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020691B (de) * 1956-09-15 1957-12-12 Rohde & Schwarz Frequenzregelung in Empfaengern fuer frequenzumgetastete Sendungen
DE1254200B (de) * 1964-11-10 1967-11-16 Standard Elek K Lorenz Ag Synchrodynempfaenger fuer hochfrequente elektrische Schwingungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020691B (de) * 1956-09-15 1957-12-12 Rohde & Schwarz Frequenzregelung in Empfaengern fuer frequenzumgetastete Sendungen
DE1254200B (de) * 1964-11-10 1967-11-16 Standard Elek K Lorenz Ag Synchrodynempfaenger fuer hochfrequente elektrische Schwingungen

Also Published As

Publication number Publication date
FR963719A (enrdf_load_stackoverflow) 1950-07-19
BE482631A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US2475074A (en) Frequency stabilizing system
GB661082A (en) Improvements in and relating to automatic frequency control
US2435262A (en) Self-modulated oscillator
US2714661A (en) Methods and systems for controlling the frequencies of generated oscillations
US2492168A (en) Modulator
US2282910A (en) Variable frequency detector system
US2505642A (en) Frequency synchronizing system
US3035234A (en) Pulse modulation transmission systems or the like
GB607798A (en) Improvements in or relating to frequency-control circuits
US2459846A (en) Voltage control arrangement
US2258470A (en) Electronic reactance device
US2714660A (en) Frequency stabilization method and system employing stark effect
GB726858A (en) Improvements in or relating to circuits for automatic frequency control and phase-modulation of electric oscillators
US2589861A (en) Microwave frequency modulated transmitter
US2843746A (en) Amplitude control for oscillators
US2493011A (en) Oscillator power output maximizing system
US2058738A (en) Electrical circuit for cold cathode tubes
US2924785A (en) Maximizing the power output level of klystron oscillators and the like
US2511789A (en) Frequency modulation system
US2489327A (en) Crystal controlled oscillator
US3075157A (en) Automatic rest frequency control for pulsed frequency modulated oscillator
US2470843A (en) Stop-on carrier tuner
US2120800A (en) Transmitter
GB721985A (en) Improvements in or relating to frequency modulated ultra-high frequency circuit arrangements
GB846387A (en) Frequency variation response circuit