US2663847A - Phase changer - Google Patents

Phase changer Download PDF

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Publication number
US2663847A
US2663847A US163298A US16329850A US2663847A US 2663847 A US2663847 A US 2663847A US 163298 A US163298 A US 163298A US 16329850 A US16329850 A US 16329850A US 2663847 A US2663847 A US 2663847A
Authority
US
United States
Prior art keywords
sections
conductor
phase changer
phase
line
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 - Lifetime
Application number
US163298A
Other languages
English (en)
Inventor
Andre G Clavier
David L Thomas
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 BE503384D priority Critical patent/BE503384A/xx
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to US163298A priority patent/US2663847A/en
Priority to GB3816/51A priority patent/GB686286A/en
Priority to FR1034266D priority patent/FR1034266A/fr
Priority to ES0197695A priority patent/ES197695A1/es
Priority to DEI4159A priority patent/DE888728C/de
Priority to CH310087D priority patent/CH310087A/fr
Application granted granted Critical
Publication of US2663847A publication Critical patent/US2663847A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/10—Wire waveguides, i.e. with a single solid longitudinal conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/183—Coaxial phase-shifters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/19—Phase-shifters using a ferromagnetic device

Definitions

  • This invention relates to microwave transrmssion systems employing surface wave propagatlon and more particularly to phase Shifters for such systems.
  • the guide line may comprise either a bare conductor having a nite resistivity or a conductor with dielectric material distributed therealong, either as a continuous coating or as spaced sections or beads.
  • the larger part of the electromagnetic field for such lines is confined in the form of a cylindrical volume closely adjacent the surface of the conductor thereby resulting in efficient transmission of high frequency energy.
  • an ordinary No. i2 enameled copper Wire has been found to have for high frequencies the major portion of the electromagnetic field concentrated within a 3 to i inch radius about the wire. The high frequency energy has been found to flow in this eld along the surface of the wire with very low loss and to be substantially free from electrical and other disturbances where this confined cylindrical field was substantially unobstructed.
  • One of the objects of this invention is to provide a phase shifter for guide lines capable of surface wave transmission; and a further object is to provide a phase shifter for such lines which is easily adjustable.
  • the phase shifters according to our invention comprise a line conductor along which conductor sections of cross-sectional size greater than the cross-sectional size of the line conductor are periodically disposed.
  • These conductor sections are similar to the conductor sections of the filters disclosed in our copending application, Serial No. 152,132, filed March 27, 1950, except that the sections in the present invention are adjustable in size.
  • These periodically disposed conducting sections increase the delay of propagation of high frequency energy, the degree of delay depending upon the ratio between the size or thickness axially of the sections and the spacing between the sections. By altering this ratio without changing the periodicity of the sections, wide band phase change is obtainable.
  • Each section preferably comprises a pair of disc-like elements at least one of which is provided with a peripheral ange disposed concentrically. about the 'line'v conductor in over-.lapping 2 contact relationship with the peripheral edge of the other element of the pair.
  • Another feature of the invention is the manner by which the conductor sections may be adjusted in axial size.
  • a corresponding element of each pair is connected together so that the connected elements may be moved in unison relative to the other elements which are carried by the line conductor.
  • the connecting means for the movable elements may comprise a hollow cylinder of insulating material disposed about the sections and mounted for axial movement relative to the line conductor.
  • One element of each section is connected by insulating means to the hollow insulating cylinder so that movement of the hollow cylinder will produce variation in the size of the conductor sections.
  • the ends of the cylinder are closed about the line conductor by bodies of insulating material which preferably are tapered from the outer cylinder to substantially the surface of the line conductor.
  • a liquid dielectric is also preferably contained within the cylinder, the dielectric coefficient of the liquid being substantially the same as the dielectric coemcient of the insulating bodies.
  • each section is shifted by means of an axial connector disposed within the line conductor which in this embodiment is made hollow.
  • Fig. 1 is a viewin longitudinal section illustrating a phase changer embodying a plurality of phase changer sections together with an enclosing insulating cylinder by which the sections may be adjusted in axial size;
  • Fig. 2 is a cross-sectional View taken along line y2f-25fo:l1iig.1;
  • Fig. ⁇ Bris a longitudinal sectional view of a modified form of phase changer which includes an electrical control for effecting adjustment of the sections;
  • Fig. 4 is a sectional view taken along line 4 4 of Fig. 3;A
  • Fig.5 is a fragmentary sectional view illustratinga manual 4control which be L'substituted 5.

Landscapes

  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Waveguides (AREA)
US163298A 1950-05-20 1950-05-20 Phase changer Expired - Lifetime US2663847A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE503384D BE503384A (is") 1950-05-20
US163298A US2663847A (en) 1950-05-20 1950-05-20 Phase changer
GB3816/51A GB686286A (en) 1950-05-20 1951-02-16 Phase changer
FR1034266D FR1034266A (fr) 1950-05-20 1951-03-21 Convertisseur de phase
ES0197695A ES197695A1 (es) 1950-05-20 1951-05-04 Mejoras en modificadores de fase
DEI4159A DE888728C (de) 1950-05-20 1951-05-18 Phasenschieber fuer Oberflaechenwellenleiter
CH310087D CH310087A (fr) 1950-05-20 1951-05-19 Déphaseur.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US163298A US2663847A (en) 1950-05-20 1950-05-20 Phase changer

Publications (1)

Publication Number Publication Date
US2663847A true US2663847A (en) 1953-12-22

Family

ID=22589375

Family Applications (1)

Application Number Title Priority Date Filing Date
US163298A Expired - Lifetime US2663847A (en) 1950-05-20 1950-05-20 Phase changer

Country Status (7)

Country Link
US (1) US2663847A (is")
BE (1) BE503384A (is")
CH (1) CH310087A (is")
DE (1) DE888728C (is")
ES (1) ES197695A1 (is")
FR (1) FR1034266A (is")
GB (1) GB686286A (is")

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2215582A (en) * 1938-02-02 1940-09-24 Rca Corp Resonant line and associated circuit
US2236102A (en) * 1938-04-28 1941-03-25 Internat Telephone Dev Co Inc High frequency wave transmission system
US2419855A (en) * 1939-06-22 1947-04-29 Roosenstein Hans Otto Arrangement adapted to suppress radio frequency currents on conductors
US2438795A (en) * 1943-12-13 1948-03-30 Hazeltine Research Inc Wave-guide system
US2451258A (en) * 1943-12-01 1948-10-12 Rca Corp Sealed antenna
US2500875A (en) * 1943-02-18 1950-03-14 Patelhold Patentverwertung Tunable high-frequency tank circuit
US2567748A (en) * 1943-10-02 1951-09-11 Milton G White Control of wave length in wave guides

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2215582A (en) * 1938-02-02 1940-09-24 Rca Corp Resonant line and associated circuit
US2236102A (en) * 1938-04-28 1941-03-25 Internat Telephone Dev Co Inc High frequency wave transmission system
US2419855A (en) * 1939-06-22 1947-04-29 Roosenstein Hans Otto Arrangement adapted to suppress radio frequency currents on conductors
US2500875A (en) * 1943-02-18 1950-03-14 Patelhold Patentverwertung Tunable high-frequency tank circuit
US2567748A (en) * 1943-10-02 1951-09-11 Milton G White Control of wave length in wave guides
US2451258A (en) * 1943-12-01 1948-10-12 Rca Corp Sealed antenna
US2438795A (en) * 1943-12-13 1948-03-30 Hazeltine Research Inc Wave-guide system

Also Published As

Publication number Publication date
FR1034266A (fr) 1953-07-21
BE503384A (is")
DE888728C (de) 1953-09-03
ES197695A1 (es) 1951-06-16
CH310087A (fr) 1955-09-30
GB686286A (en) 1953-01-21

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