FR942934A - Commande de la fréquence dans les montages à très haute fréquence - Google Patents

Commande de la fréquence dans les montages à très haute fréquence

Info

Publication number
FR942934A
FR942934A FR942934DA FR942934A FR 942934 A FR942934 A FR 942934A FR 942934D A FR942934D A FR 942934DA FR 942934 A FR942934 A FR 942934A
Authority
FR
France
Prior art keywords
frequency
setups
high frequency
control
frequency control
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
Other languages
English (en)
French (fr)
Inventor
Charles Norman Smyth
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR942934A publication Critical patent/FR942934A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03J7/14—Controlling the magnetic state of inductor cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/14—Applications of loading and unloading equipment
    • B66B17/26—Applications of loading and unloading equipment for loading or unloading mining-hoist skips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/02—Lecher resonators
    • 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
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H5/00—One-port networks comprising only passive electrical elements as network components
    • H03H5/003—One-port networks comprising only passive electrical elements as network components comprising distributed impedance elements together with lumped impedance elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
FR942934D 1940-02-20 1947-01-22 Commande de la fréquence dans les montages à très haute fréquence Expired FR942934A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3186/40A GB558454A (en) 1940-02-20 1940-02-20 Improvements relating to frequency control in ultra-high-frequency circuits

Publications (1)

Publication Number Publication Date
FR942934A true FR942934A (fr) 1949-02-22

Family

ID=32109231

Family Applications (1)

Application Number Title Priority Date Filing Date
FR942934D Expired FR942934A (fr) 1940-02-20 1947-01-22 Commande de la fréquence dans les montages à très haute fréquence

Country Status (5)

Country Link
US (1) US2397701A (de)
BE (1) BE472809A (de)
FR (1) FR942934A (de)
GB (1) GB558454A (de)
NL (1) NL136703B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE458146A (de) * 1945-02-08
US2568395A (en) * 1948-08-30 1951-09-18 Rca Corp Controlled wave energy generator
AU2001290521A1 (en) 2000-07-31 2002-02-13 Firewall Forward Technologies, Llc Camshaft lubrication system

Also Published As

Publication number Publication date
NL136703B (de)
US2397701A (en) 1946-04-02
GB558454A (en) 1944-01-06
BE472809A (de) 1947-10-25

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