GB846288A - Improvements in or relating to electromagnetic wave modulating devices - Google Patents

Improvements in or relating to electromagnetic wave modulating devices

Info

Publication number
GB846288A
GB846288A GB8592/57A GB859257A GB846288A GB 846288 A GB846288 A GB 846288A GB 8592/57 A GB8592/57 A GB 8592/57A GB 859257 A GB859257 A GB 859257A GB 846288 A GB846288 A GB 846288A
Authority
GB
United Kingdom
Prior art keywords
modulator
waveguide
dielectric
helix
march
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
GB8592/57A
Inventor
Arthur Langley Morris
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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
Priority to NL225886D priority Critical patent/NL225886A/xx
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB8592/57A priority patent/GB846288A/en
Priority to DEN14776A priority patent/DE1060924B/en
Priority to US720892A priority patent/US3001151A/en
Priority to FR1193259D priority patent/FR1193259A/en
Publication of GB846288A publication Critical patent/GB846288A/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
    • H01P1/165—Auxiliary devices for rotating the plane of polarisation
    • H01P1/175—Auxiliary devices for rotating the plane of polarisation using Faraday rotators
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Non-Reversible Transmitting Devices (AREA)

Abstract

846,288. Waveguides. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 11, 1958 [March 15, 1957], No. 8592/57. Class 40(8). [Also in Group XL(c)] In a ferrite modulator the wall of the waveguide is formed by a helical conductor carrying the modulating current. An insulating layer 3 may externally support the guide and a foam dielectric supporting sleeve 10 may be inserted between it and the ferrite rod 9. The modulator may be terminated by flanges 4, 6, the former conductively connected to it and the latter insulated from it, the modulating current being applied between one end of the helix, through a terminal 7 in the layer 3, and the earthed flange 4. In a modification the terminal 7 is connected to two otherwise insulated abutting helices of opposite hand, each terminating in earthed flanges for connection in a waveguide. The or each modulator helix may be formed electrolytically on a mandrel as described in Specification 846,289 so that the spacing slots are narrower on the outside of the waveguide wall than on the inside, thereby minimizing radiation. High dielectric constant material may be substituted for the spacer 10, or a fluid dielectric may be contained by dielectric bulkheads in the modulator, and cooled by a circulating system having a radiator.
GB8592/57A 1957-03-15 1957-03-15 Improvements in or relating to electromagnetic wave modulating devices Expired GB846288A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL225886D NL225886A (en) 1957-03-15
GB8592/57A GB846288A (en) 1957-03-15 1957-03-15 Improvements in or relating to electromagnetic wave modulating devices
DEN14776A DE1060924B (en) 1957-03-15 1958-03-11 Modulation device for very short electromagnetic waves
US720892A US3001151A (en) 1957-03-15 1958-03-12 Electromagnetic wave modulating devices
FR1193259D FR1193259A (en) 1957-03-15 1958-03-14 Electromagnetic wave modulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8592/57A GB846288A (en) 1957-03-15 1957-03-15 Improvements in or relating to electromagnetic wave modulating devices

Publications (1)

Publication Number Publication Date
GB846288A true GB846288A (en) 1960-08-31

Family

ID=9855456

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8592/57A Expired GB846288A (en) 1957-03-15 1957-03-15 Improvements in or relating to electromagnetic wave modulating devices

Country Status (5)

Country Link
US (1) US3001151A (en)
DE (1) DE1060924B (en)
FR (1) FR1193259A (en)
GB (1) GB846288A (en)
NL (1) NL225886A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217272A (en) * 1961-05-16 1965-11-09 Adams Russel Co Inc High-speed high-power r-f switching
US3245011A (en) * 1961-05-31 1966-04-05 Raytheon Co Ferroelectric signal-translating device having voltage-controlled signal delay
US3340483A (en) * 1965-11-30 1967-09-05 Hughes Aircraft Co Controllable ferrite phase shifter having means to cool the ferrite
US3501716A (en) * 1968-12-03 1970-03-17 Bell Telephone Labor Inc Gyrator network using operational amplifiers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE469698A (en) * 1945-03-10
BE512176A (en) * 1951-06-18
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
US2820952A (en) * 1953-12-29 1958-01-21 Collins Radio Co High power ladder network attenuator for frequencies from zero to over one thousand megacycles
US2850705A (en) * 1955-04-18 1958-09-02 Herman N Chait Ridged ferrite waveguide device
US2873370A (en) * 1955-08-15 1959-02-10 Levinthal Electronics Products Microwave pulse generator

Also Published As

Publication number Publication date
US3001151A (en) 1961-09-19
DE1060924B (en) 1959-07-09
FR1193259A (en) 1959-11-02
NL225886A (en)

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