CH272407A - Electromagnetic device in which an alternating magnetic field is effective in a ferromagnetic medium. - Google Patents

Electromagnetic device in which an alternating magnetic field is effective in a ferromagnetic medium.

Info

Publication number
CH272407A
CH272407A CH272407DA CH272407A CH 272407 A CH272407 A CH 272407A CH 272407D A CH272407D A CH 272407DA CH 272407 A CH272407 A CH 272407A
Authority
CH
Switzerland
Prior art keywords
effective
magnetic field
alternating magnetic
electromagnetic device
ferromagnetic medium
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH272407A publication Critical patent/CH272407A/en

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
CH272407D 1948-02-13 1949-02-11 Electromagnetic device in which an alternating magnetic field is effective in a ferromagnetic medium. CH272407A (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
CH272407A true CH272407A (en) 1950-12-15

Family

ID=26643476

Family Applications (1)

Application Number Title Priority Date Filing Date
CH272407D CH272407A (en) 1948-02-13 1949-02-11 Electromagnetic device in which an alternating magnetic field is effective in a ferromagnetic medium.

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055624B (en) * 1958-04-24 1959-04-23 Dr Rer Nat Hans Severin Magnetically changeable? for coaxial lines
DE977200C (en) * 1953-02-01 1965-06-10 Siemens Ag Gyrator device

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL169864B (en) * 1951-05-26 Mitsubishi Chem Ind PROCEDURE FOR CATALYTIC CONVERSION OF A CONJUGATED DIE.
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.
FR65027E (en) * 1952-02-05 1956-01-25 Int Standard Electric Corp Magneto-optical methods and devices
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
US2820951A (en) * 1953-03-17 1958-01-21 Thompson Prod Inc Attenuator
NL177986B (en) * 1953-04-29 Olsson Erik Allan PROCESS FOR MANUFACTURE OF A METAL STRAP BY MEANS OF CASTING, AS WELL AS THE DEVICE FOR PERFORMING THE PROCEDURE.
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
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
US2850701A (en) * 1953-08-07 1958-09-02 Bell Telephone Labor Inc Nonreciprocal wave transmission component
US2993180A (en) * 1953-12-31 1961-07-18 Bell Telephone Labor Inc Non-reciprocal wave transmission
US2980870A (en) * 1954-02-15 1961-04-18 Gen Precision Inc Microwave field rotator
US2941168A (en) * 1954-02-23 1960-06-14 Monogram Prec Ind Inc Unidirectional transmission line
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
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
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
BE549333A (en) * 1955-09-16
US2907964A (en) * 1955-09-22 1959-10-06 Bell Telephone Labor Inc Gyromagnetic polarizing device
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
DE1180847B (en) * 1956-03-28 1964-11-05 Siemens Ag Device for changing the apparent resistance of a capacitor
US2848688A (en) * 1956-04-09 1958-08-19 Gen Precision Lab Inc Microwave switching circuit
US2918572A (en) * 1956-05-08 1959-12-22 Decca Record Co Ltd Variable impedance microwave apparatus
NL217093A (en) * 1956-05-12
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
US2951216A (en) * 1956-12-17 1960-08-30 Hughes Aircraft Co Reflectionless microwave filter
US3004153A (en) * 1957-01-04 1961-10-10 Alford Andrew Circuit for use with a plurality of antennas
BE563967A (en) * 1957-01-26
NL224231A (en) * 1957-02-15
US3013266A (en) * 1957-04-18 1961-12-12 Westinghouse Electric Corp Beam steering apparatus employing ferrites
NL226155A (en) * 1957-05-09
US2979675A (en) * 1957-08-22 1961-04-11 Bell Telephone Labor Inc Non-reciprocal wave transmission
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
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977200C (en) * 1953-02-01 1965-06-10 Siemens Ag Gyrator device
DE1055624B (en) * 1958-04-24 1959-04-23 Dr Rer Nat Hans Severin Magnetically changeable? for coaxial lines

Also Published As

Publication number Publication date
DE806150C (en) 1951-06-11
FR980648A (en) 1951-05-16
NL138838B (en)
BE487331A (en)
GB674874A (en) 1952-07-02

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