GB845395A - Improvements in or relating to unidirectional wave guide arrangements - Google Patents

Improvements in or relating to unidirectional wave guide arrangements

Info

Publication number
GB845395A
GB845395A GB3368158A GB3368158A GB845395A GB 845395 A GB845395 A GB 845395A GB 3368158 A GB3368158 A GB 3368158A GB 3368158 A GB3368158 A GB 3368158A GB 845395 A GB845395 A GB 845395A
Authority
GB
United Kingdom
Prior art keywords
temperature
ratio
relating
variation
compensation
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
GB3368158A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB845395A publication Critical patent/GB845395A/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
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/36—Isolators
    • H01P1/365—Resonance absorption isolators

Landscapes

  • Soft Magnetic Materials (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Gyroscopes (AREA)

Abstract

845,395. Non-reciprocal waveguide devices. TELEFUNKEN G.m.b.H. Oct. 21, 1958 [Jan 14, 1958], No. 3368l/58 Drawings to Specification. Class 40(8). The aspect ratio (ratio of height to thickness) of a waveguide damping member is so selected that the gyromagnetic resonance condition is substantially independent of temperature. The variation of gyromagnetic resonance with temperature is offset by the variation of saturation magnetization Ms of the member with temperature, compensation being substantially complete when where # is the aspect ratio h/d # is the angular frequency and y is the gyromatic ratio. The damping member may be a dielectric, e.g. ferrite, and more than one member may be used. The specification refers to the prior art of utilizing a temperature-dependent ferro-magnetic body in parallel or in series with a substantially temperature-constant permanent magnet so that the field intensity is controlled, with a view to temperature compensation, by the temperature-dependent reluctance provided by said body.
GB3368158A 1958-01-14 1958-10-21 Improvements in or relating to unidirectional wave guide arrangements Expired GB845395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET14619A DE1038623B (en) 1958-01-14 1958-01-14 Directional damping line, consisting of a waveguide with a strip-shaped damping element

Publications (1)

Publication Number Publication Date
GB845395A true GB845395A (en) 1960-08-24

Family

ID=7547682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3368158A Expired GB845395A (en) 1958-01-14 1958-10-21 Improvements in or relating to unidirectional wave guide arrangements

Country Status (5)

Country Link
CH (1) CH363688A (en)
DE (1) DE1038623B (en)
FR (1) FR1204251A (en)
GB (1) GB845395A (en)
NL (2) NL123997C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1133440B (en) * 1959-01-16 1962-07-19 Siemens Ag Broadband transmission arrangement for very short electromagnetic waves
US3030593A (en) * 1959-05-27 1962-04-17 Bell Telephone Labor Inc Temperature compensated gyromagnetic device
DE1103414B (en) * 1959-07-29 1961-03-30 Siemens Ag Temperature compensated Faraday rotator or phase shifter with gyromagnetic material for very short electromagnetic waves
DE1130020B (en) * 1960-03-12 1962-05-24 Telefunken Patent Arrangement for temperature compensation of the gyromagnetic properties of ferrite disks for electromagnetic waves
DE1167925B (en) * 1961-05-31 1964-04-16 Siemens Ag Arrangement for the non-reciprocal rotation of the plane of polarization of very short linearly polarized electromagnetic waves
DE1146147B (en) * 1961-10-05 1963-03-28 Telefunken Patent Temperature compensated non-reciprocal quadrupole

Also Published As

Publication number Publication date
DE1038623B (en) 1958-09-11
FR1204251A (en) 1960-01-25
NL235036A (en)
CH363688A (en) 1962-08-15
NL123997C (en)

Similar Documents

Publication Publication Date Title
CH393535A (en) Magnet arrangement for generating magnetic fields of variable field strength with constant geometric configuration
GB845395A (en) Improvements in or relating to unidirectional wave guide arrangements
JPS55143009A (en) Material for surface static magnetic wave
GB790538A (en) Non-reciprocal microwave transmission device
GB1281498A (en) Improvements in calcium-vanadium ferrimagnetic garnets
GB880088A (en) A microwave ferrite device
GB971019A (en) Waveguide gyromagnetic resonance isolator
GB989309A (en) Improvements in microwave isolators
JPS56156652A (en) Converging device for color picture tube
JPS53138380A (en) Magnetic field detecting element
JPS5264852A (en) Ferrimagnetic substance circuit element
GB903537A (en) Improvements in or relating to microwave ferrite devices
GB787943A (en) Unidirectional waveguide attenuator
GB1020892A (en) A temperature-compensated non-reciprocal quadripole for electromagnetic waves
JPS5264853A (en) Ferrimagnetic substance circuit element
HORAN Transmission resonance in ferromagnetic gadolinium[Ph. D. Thesis]
JPS5690618A (en) Lumped constant type circulator and isolator
CA592444A (en) Ferrite with constricted magnetic hysteresis loop
CA595275A (en) Ferrite with constricted magnetic hysteresis loop
GB909223A (en) Improvements in or relating to devices for the transmission of electromagnetic waves
GB786578A (en) Improvements in or relating to variable magnetic coupling devices
GB901864A (en) Improvements in or relating to ferrite devices
JPS5492042A (en) Waveguide branched type circulator
AU244939B2 (en) Improvements in or relating toa coil arrangement inwhich the inductance maybe varied insteps by means of bias magnetization
AU202839B2 (en) Improvements in or relating toa method of manufacturing magnet core having an approximately rectangular hysteresis loop