GB780086A - Improvements in and relating to electromagnetic wave radiators - Google Patents

Improvements in and relating to electromagnetic wave radiators

Info

Publication number
GB780086A
GB780086A GB3553054A GB3553054A GB780086A GB 780086 A GB780086 A GB 780086A GB 3553054 A GB3553054 A GB 3553054A GB 3553054 A GB3553054 A GB 3553054A GB 780086 A GB780086 A GB 780086A
Authority
GB
United Kingdom
Prior art keywords
horn
polarized
wave
throat
guide
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
GB3553054A
Original Assignee
Kenneth Foster
Alan Philip Craven Thiele
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 Kenneth Foster, Alan Philip Craven Thiele filed Critical Kenneth Foster
Priority to GB3553054A priority Critical patent/GB780086A/en
Publication of GB780086A publication Critical patent/GB780086A/en
Application status is Expired legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/024Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
    • G01S7/026Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects involving the transmission of elliptically or circularly polarised waves
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00Auxiliary devices
    • H01P1/165Auxiliary devices for rotating the plane of polarisation
    • H01P1/17Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02Waveguide horns
    • H01Q13/0241Waveguide horns radiating a circularly polarised wave

Abstract

780,086. Waveguides. FOSTER, K., and THIELE, A. P. C. Nov. 28, 1955 [Dec. 8, 1954], No. 35530/54. Class 40 (8). [Also in Group XL (c)] The invention relates to a horn for radiating circularly polarized wave energy and feed means therefor. The horn 10 is constructed with a rectangular cross-section which differs in shape along its length and is so dimensioned that for wayes of a given wavelength A a wave polarized parallel to one edge of the throat is delayed an odd number of quarter wavelengths relative to a wave polarized perpendicular to that edge. It is preferred to make the throat end of the horn square. To feed the horn with the required orthogonal plane polarized waves feedguide 11 may be coupled by transition guide 12 to circular guide 13 itself coupled to the horn by transition guide 14. The guide 11 may carry an H 11 wave and be orientated so that energy reaches the throat of the horn with its E vector at 45 degrees to the edges and is there resolved into the two waves required. In a different arrangement section 13 may contain a phaseshifter by means of which two H 11 waves polarized at right angles are produced which combine to give a wave polarized with its E vector at 45 degrees to the throat edges as before. Suitable phase shifters consist of a correctly orientated strip of dielectric (Fig. 3a, not shown), a pair of diametrically opposite metal fins (Fig. 4, not shown) or a metal plug 18 against the guide wall (Fig. 5). The central part of the section 13 can also be made elliptical to produce the same effect. The phase shifters are preferably stepped or otherwise shaped to match them to the approaching and outgoing waveguide sections.
GB3553054A 1954-12-08 1954-12-08 Improvements in and relating to electromagnetic wave radiators Expired GB780086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3553054A GB780086A (en) 1954-12-08 1954-12-08 Improvements in and relating to electromagnetic wave radiators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3553054A GB780086A (en) 1954-12-08 1954-12-08 Improvements in and relating to electromagnetic wave radiators
US549486A US2933731A (en) 1954-12-08 1955-11-28 Electromagnetic wave radiators

Publications (1)

Publication Number Publication Date
GB780086A true GB780086A (en) 1957-07-31

Family

ID=10378763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3553054A Expired GB780086A (en) 1954-12-08 1954-12-08 Improvements in and relating to electromagnetic wave radiators

Country Status (2)

Country Link
US (1) US2933731A (en)
GB (1) GB780086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437595A1 (en) * 1994-10-20 1996-05-30 Pt Komtelindo Adipratama Waveguide septum phase shifter for polarised signals

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230537A (en) * 1959-05-22 1966-01-18 Telefunken Ag Feed horn with broad-band compensated polarization changer
US3216018A (en) * 1962-10-12 1965-11-02 Control Data Corp Wide angle horn feed closely spaced to main reflector
US3287730A (en) * 1963-02-05 1966-11-22 John L Kerr Variable polarization antenna
GB1179392A (en) * 1966-01-31 1970-01-28 Mini Of Technology Improvements in or relating to Horn Aerials
US3831176A (en) * 1973-06-04 1974-08-20 Gte Sylvania Inc Partial-radial-line antenna
US4141013A (en) * 1976-09-24 1979-02-20 Hughes Aircraft Company Integrated circularly polarized horn antenna
US5406298A (en) * 1985-04-01 1995-04-11 The United States Of America As Represented By The Secretary Of The Navy Small wideband passive/active antenna
JPH0195813U (en) * 1987-12-18 1989-06-26
GB8820097D0 (en) * 1988-08-24 1988-09-28 Racal Mesl Ltd Radio signal polarising arrangements
US5126750A (en) * 1990-09-21 1992-06-30 The United States Of America As Represented By The Secretary Of The Air Force Magnetic hybrid-mode horn antenna
SE504682C2 (en) * 1991-07-04 1997-04-07 Saab Marine Electronics Apparatus for measuring the level of a container in an existing medium
US8248178B2 (en) * 2009-12-03 2012-08-21 The Aerospace Corporation High power waveguide polarizer with broad bandwidth and low loss, and methods of making and using same
CN104577326B (en) * 2013-10-09 2017-05-10 启碁科技股份有限公司 And a feedthrough current wave

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607849A (en) * 1943-10-02 1952-08-19 Edward M Purcell Control of polarization in wave guides and wave guide systems
GB582856A (en) * 1944-07-05 1946-11-29 John Betteley Birks Improvements in or relating to electromagnetic radiators or receivers
NL72696C (en) * 1945-04-26
NL73821C (en) * 1946-01-11
US2611087A (en) * 1946-01-29 1952-09-16 Alford Andrew Device for radiating circularly polarized waves
US2603709A (en) * 1946-12-11 1952-07-15 Bell Telephone Labor Inc Rotatable wave guide attenuator
GB664926A (en) * 1949-03-09 1952-01-16 British Thomson Houston Co Ltd Improvements relating to ultra high frequency heating
US2682610A (en) * 1951-12-06 1954-06-29 Bell Telephone Labor Inc Selective mode transducer
US2756422A (en) * 1952-01-02 1956-07-24 Glenn L Martin Co Polarization switching antenna system
US2858512A (en) * 1954-05-03 1958-10-28 Hewlett Packard Co Apparatus for varying the phase in waveguide systems
US2858535A (en) * 1955-07-29 1958-10-28 Lab For Electronics Inc Microwave polarization apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437595A1 (en) * 1994-10-20 1996-05-30 Pt Komtelindo Adipratama Waveguide septum phase shifter for polarised signals

Also Published As

Publication number Publication date
US2933731A (en) 1960-04-19

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