FR980648A - Electromagnetic device - Google Patents

Electromagnetic device

Info

Publication number
FR980648A
FR980648A FR980648DA FR980648A FR 980648 A FR980648 A FR 980648A FR 980648D A FR980648D A FR 980648DA FR 980648 A FR980648 A FR 980648A
Authority
FR
France
Prior art keywords
electromagnetic device
electromagnetic
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
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR980648A publication Critical patent/FR980648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/22—Attenuating devices
    • H01P1/23—Attenuating devices using ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/08—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators
    • 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
    • H03C7/022—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using ferromagnetic devices, e.g. ferrites
    • 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
    • H03L7/26—Automatic control of frequency or phase; Synchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Amplitude Modulation (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
FR980648D 1948-02-13 1949-02-11 Electromagnetic device Expired FR980648A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL272407X 1948-02-13
NL161048X 1948-10-16

Publications (1)

Publication Number Publication Date
FR980648A true FR980648A (en) 1951-05-16

Family

ID=26643476

Family Applications (1)

Application Number Title Priority Date Filing Date
FR980648D Expired FR980648A (en) 1948-02-13 1949-02-11 Electromagnetic device

Country Status (6)

Country Link
BE (1) BE487331A (en)
CH (1) CH272407A (en)
DE (1) DE806150C (en)
FR (1) FR980648A (en)
GB (1) GB674874A (en)
NL (1) NL138838B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844799A (en) * 1955-09-15 1958-07-22 Bell Telephone Labor Inc Guided wave transmission system
US2848688A (en) * 1956-04-09 1958-08-19 Gen Precision Lab Inc Microwave switching circuit
US2850701A (en) * 1953-08-07 1958-09-02 Bell Telephone Labor Inc Nonreciprocal wave transmission component
US2866165A (en) * 1955-08-05 1958-12-23 Gen Precision Lab Inc Microwave duplexer
US2922125A (en) * 1954-10-20 1960-01-19 Bell Telephone Labor Inc Nonreciprocal single crystal ferrite devices
US2951216A (en) * 1956-12-17 1960-08-30 Hughes Aircraft Co Reflectionless microwave filter
US2951215A (en) * 1956-02-02 1960-08-30 Hughes Aircraft Co Waveguide coupling device with switching arrangement
US2951220A (en) * 1953-06-17 1960-08-30 Bell Telephone Labor Inc Wave guide with polarized ferrite element
US2954535A (en) * 1954-03-09 1960-09-27 Bell Telephone Labor Inc Non-reciprocal wave transmission
US2979675A (en) * 1957-08-22 1961-04-11 Bell Telephone Labor Inc Non-reciprocal wave transmission
US2980870A (en) * 1954-02-15 1961-04-18 Gen Precision Inc Microwave field rotator
US3020501A (en) * 1956-05-12 1962-02-06 Emi Ltd Waveguides
US3066263A (en) * 1957-02-15 1962-11-27 Bell Telephone Labor Inc Gyromagnetic parametric amplifier
US3076946A (en) * 1953-06-17 1963-02-05 Bell Telephone Labor Inc Nonreciprocal rectangular wave guide device
US3095546A (en) * 1956-03-01 1963-06-25 Sylvania Electric Prod Gyromagnetic isolator using a nonuniform magnetic bias

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL92837C (en) * 1951-05-26
US2798207A (en) * 1951-08-17 1957-07-02 Reggia Frank Magnetic microwave attenuators
DE910671C (en) * 1951-09-18 1954-05-06 Oskar Vierling Dr Circuit arrangement for magnetic modulators, modulators, relays, amplifiers, etc.
BE517412A (en) * 1952-02-05
DE949242C (en) * 1952-03-16 1956-09-13 Blaupunkt Werke G M B H Zweign Overlay receiver for frequency-modulated oscillations with automatic focusing
US2784382A (en) * 1952-04-05 1957-03-05 Thompson Prod Inc Magnetic high frequency attenuator
US2832938A (en) * 1952-08-18 1958-04-29 George T Rado Polarization plane rotator for microwave energy
DE977200C (en) * 1953-02-01 1965-06-10 Siemens Ag Gyrator device
US2820951A (en) * 1953-03-17 1958-01-21 Thompson Prod Inc Attenuator
NL94077C (en) * 1953-04-29
US2924794A (en) * 1957-12-19 1960-02-09 Bell Telephone Labor Inc Nonreciprocal attenuator
US2922129A (en) * 1953-07-08 1960-01-19 Bell Telephone Labor Inc Hall effect device for electromagnetic waves
US2993180A (en) * 1953-12-31 1961-07-18 Bell Telephone Labor Inc Non-reciprocal wave transmission
US2941168A (en) * 1954-02-23 1960-06-14 Monogram Prec Ind Inc Unidirectional transmission line
US2834945A (en) * 1955-04-25 1958-05-13 Bell Telephone Labor Inc Field displacement isolator
US2908878A (en) * 1955-05-27 1959-10-13 Robert F Sullivan Microwave switching device
BE549727A (en) * 1955-07-22
NL112888C (en) * 1955-09-16
US2907964A (en) * 1955-09-22 1959-10-06 Bell Telephone Labor Inc Gyromagnetic polarizing device
DE1180847B (en) * 1956-03-28 1964-11-05 Siemens Ag Device for changing the apparent resistance of a capacitor
US2918572A (en) * 1956-05-08 1959-12-22 Decca Record Co Ltd Variable impedance microwave apparatus
US2965863A (en) * 1956-06-19 1960-12-20 Bell Telephone Labor Inc Magnetic tuned cavity resonator
US3078425A (en) * 1956-07-12 1963-02-19 Sperry Rand Corp Non-reciprocal tm mode transducer
US2920292A (en) * 1956-08-30 1960-01-05 Bell Telephone Labor Inc Power saturable wave guide components
NL212081A (en) * 1956-11-09
US3004153A (en) * 1957-01-04 1961-10-10 Alford Andrew Circuit for use with a plurality of antennas
NL224219A (en) * 1957-01-26
US3013266A (en) * 1957-04-18 1961-12-12 Westinghouse Electric Corp Beam steering apparatus employing ferrites
BE565922A (en) * 1957-05-09
DE1085934B (en) * 1958-01-03 1960-07-28 Hughes Aircraft Co Device for the transmission of electromagnetic waves
US2970274A (en) * 1958-03-21 1961-01-31 Bell Telephone Labor Inc Solid state amplifier
DE1055624B (en) * 1958-04-24 1959-04-23 Dr Rer Nat Hans Severin Magnetically changeable? for coaxial lines
US2972122A (en) * 1958-04-25 1961-02-14 Bell Telephone Labor Inc Nonreciprocal wave transmission
US2994842A (en) * 1959-02-20 1961-08-01 Polytechnic Inst Brooklyn Coupled-coil wave circulator
US3072869A (en) * 1959-04-29 1963-01-08 Bell Telephone Labor Inc Reciprocal gyromagnetic loss device
NL265707A (en) * 1960-06-09
DE1163927B (en) * 1961-02-13 1964-02-27 Siemens Ag Non-reciprocal gyromagnetic arrangement for devices of the high frequency technology
US3221276A (en) * 1961-04-27 1965-11-30 Gen Electric Microwave variable reactance device operating about a resonant condition
DE1259422B (en) * 1963-03-14 1968-01-25 Philips Patentverwaltung Reciprocal phase shifter for the transmission of large powers
ES2889581T3 (en) 2013-06-25 2022-01-12 Bae Systems Plc Non-linear transmission line device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076946A (en) * 1953-06-17 1963-02-05 Bell Telephone Labor Inc Nonreciprocal rectangular wave guide device
US2951220A (en) * 1953-06-17 1960-08-30 Bell Telephone Labor Inc Wave guide with polarized ferrite element
US2850701A (en) * 1953-08-07 1958-09-02 Bell Telephone Labor Inc Nonreciprocal wave transmission component
US2980870A (en) * 1954-02-15 1961-04-18 Gen Precision Inc Microwave field rotator
US2954535A (en) * 1954-03-09 1960-09-27 Bell Telephone Labor Inc Non-reciprocal wave transmission
US2922125A (en) * 1954-10-20 1960-01-19 Bell Telephone Labor Inc Nonreciprocal single crystal ferrite devices
US2866165A (en) * 1955-08-05 1958-12-23 Gen Precision Lab Inc Microwave duplexer
US2844799A (en) * 1955-09-15 1958-07-22 Bell Telephone Labor Inc Guided wave transmission system
US2951215A (en) * 1956-02-02 1960-08-30 Hughes Aircraft Co Waveguide coupling device with switching arrangement
US3095546A (en) * 1956-03-01 1963-06-25 Sylvania Electric Prod Gyromagnetic isolator using a nonuniform magnetic bias
US2848688A (en) * 1956-04-09 1958-08-19 Gen Precision Lab Inc Microwave switching circuit
US3020501A (en) * 1956-05-12 1962-02-06 Emi Ltd Waveguides
US2951216A (en) * 1956-12-17 1960-08-30 Hughes Aircraft Co Reflectionless microwave filter
US3066263A (en) * 1957-02-15 1962-11-27 Bell Telephone Labor Inc Gyromagnetic parametric amplifier
US2979675A (en) * 1957-08-22 1961-04-11 Bell Telephone Labor Inc Non-reciprocal wave transmission

Also Published As

Publication number Publication date
NL138838B (en)
CH272407A (en) 1950-12-15
GB674874A (en) 1952-07-02
BE487331A (en)
DE806150C (en) 1951-06-11

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