GB909223A - Improvements in or relating to devices for the transmission of electromagnetic waves - Google Patents

Improvements in or relating to devices for the transmission of electromagnetic waves

Info

Publication number
GB909223A
GB909223A GB3513657A GB3513657A GB909223A GB 909223 A GB909223 A GB 909223A GB 3513657 A GB3513657 A GB 3513657A GB 3513657 A GB3513657 A GB 3513657A GB 909223 A GB909223 A GB 909223A
Authority
GB
United Kingdom
Prior art keywords
elements
transmission line
waveguide
lie
nickel
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
GB3513657A
Inventor
Dick Bush
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3513657A priority Critical patent/GB909223A/en
Publication of GB909223A publication Critical patent/GB909223A/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

  • Non-Reversible Transmitting Devices (AREA)

Abstract

909,223. Wave-guide isolators. GENERAL ELECTRIC CO. Ltd. Feb. 11, 1959 [Nov. 11, 1957], No. 35136/57. Class 40 (8). A resonance isolator comprises a transmission line 1, e.g. a rectangular waveguide, and at least two ferromagnetic elements 2, 3 arranged to lie in the magnetic field of the transmission line, e.g. produced by permanent magnets 11 and 12, with their major dimensions along the length of the transmission line, the elements exhibiting resonance at different frequencies. The elements 2, 3 can be of different materials, e.g. nickel-zinc ferrite and magnesium-manganese ferrite, and arranged to lie in magnetic fields of approximately the same value. The elements 2, 3 are glued to members 4, 5 of polystyrene which are connected by polystyrene pegs 6 to the walls of the waveguide. The ends of the elements 2, 3 and members 4, 5 can be tapered. The element 2 of nickel-zinc ferrite is mounted a little nearer the wall 13 of the waveguide than the element 3 of magnesium-manganese ferrite in order for each of the elements to effect maximum isolation. Dimensions are stated.
GB3513657A 1957-11-11 1957-11-11 Improvements in or relating to devices for the transmission of electromagnetic waves Expired GB909223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3513657A GB909223A (en) 1957-11-11 1957-11-11 Improvements in or relating to devices for the transmission of electromagnetic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3513657A GB909223A (en) 1957-11-11 1957-11-11 Improvements in or relating to devices for the transmission of electromagnetic waves

Publications (1)

Publication Number Publication Date
GB909223A true GB909223A (en) 1962-10-31

Family

ID=10374257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3513657A Expired GB909223A (en) 1957-11-11 1957-11-11 Improvements in or relating to devices for the transmission of electromagnetic waves

Country Status (1)

Country Link
GB (1) GB909223A (en)

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