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GB971019A - Waveguide gyromagnetic resonance isolator - Google Patents

Waveguide gyromagnetic resonance isolator

Info

Publication number
GB971019A
GB971019A GB29964/62A GB2996462A GB971019A GB 971019 A GB971019 A GB 971019A GB 29964/62 A GB29964/62 A GB 29964/62A GB 2996462 A GB2996462 A GB 2996462A GB 971019 A GB971019 A GB 971019A
Authority
GB
United Kingdom
Prior art keywords
strip
ferrite
waveguide
resonance
aug
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
GB29964/62A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB971019A publication Critical patent/GB971019A/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

  • Magnetic Ceramics (AREA)
  • Microwave Tubes (AREA)
  • Gyroscopes (AREA)

Abstract

971,019. Waveguide resonance isolators. STANDARD TELEPHONES & CABLES Ltd. Aug. 3, 1962 [Aug. 8, 1961, No. 29964/62. Heading H1W. A resonance isolator comprises a strip 12 of ferrite arranged symmetrically about the centre line of a broad side of a rectangular waveguide 11, the strip being of such a width that it extends into the fields of magnets 14. The fields are adjusted to the value necessary to produce gyromagnetic resonance and are concentrated on the edges of the ferrite strip by polepieces in the form of inserts 15. The central part of the strip is only weakly magnetized and behaves as a non-ferromagnetic dielectric material, the effect being comparable to that obtained in known isolators using strips of low-loss, non-magnetic ceramic material arranged alongside strips of ferrite. A second strip of ferrite may be arranged on the remaining broad wall. The magnetic circuit is completed by members 16, 17.
GB29964/62A 1961-08-08 1962-08-03 Waveguide gyromagnetic resonance isolator Expired GB971019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST18190A DE1138438B (en) 1961-08-08 1961-08-08 Resonance one-way line for very short electromagnetic waves

Publications (1)

Publication Number Publication Date
GB971019A true GB971019A (en) 1964-09-23

Family

ID=7457754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29964/62A Expired GB971019A (en) 1961-08-08 1962-08-03 Waveguide gyromagnetic resonance isolator

Country Status (6)

Country Link
US (1) US3197718A (en)
BE (1) BE621184A (en)
CH (1) CH402979A (en)
DE (1) DE1138438B (en)
GB (1) GB971019A (en)
NL (1) NL281890A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299738B (en) * 1966-05-21 1969-07-24 Philips Patentverwaltung Microwave circulator with a waveguide series branch
DE1909936B1 (en) * 1969-02-27 1970-06-04 Philips Patentverwaltung Integrated microwave system with a substrate made of non-magnetic ceramic material and method for the production of such substrates
US3761924A (en) * 1972-09-14 1973-09-25 Us Army Isolimiter
US4286135A (en) * 1979-10-09 1981-08-25 Raytheon Company Compact microwave isolator
IT7928145A0 (en) * 1979-12-18 1979-12-18 Sits Soc It Telecom Siemens FERRITE DIFFERENTIAL PHASE SHIFT FOR HIGH POWERS.

Also Published As

Publication number Publication date
NL281890A (en)
CH402979A (en) 1965-11-30
BE621184A (en)
US3197718A (en) 1965-07-27
DE1138438B (en) 1962-10-25

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