GB889490A - Improvements in or relating to scanning antenna systems - Google Patents

Improvements in or relating to scanning antenna systems

Info

Publication number
GB889490A
GB889490A GB18454/60A GB1845460A GB889490A GB 889490 A GB889490 A GB 889490A GB 18454/60 A GB18454/60 A GB 18454/60A GB 1845460 A GB1845460 A GB 1845460A GB 889490 A GB889490 A GB 889490A
Authority
GB
United Kingdom
Prior art keywords
horn
axis
conical
rotation
motor
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
GB18454/60A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB889490A publication Critical patent/GB889490A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/132—Horn reflector antennas; Off-set feeding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element

Abstract

889,490. Aerials; radio direction-finding. WESTERN ELECTRIC CO. Inc. May 25, 1960 [May 28, 1959], No. 18454/60. Class 40(7). A directional aerial system capable of providing signals for automatic tracking comprises a waveguide horn radiator feeding a paraboloidal reflector, with an elongated body of dielectric material mounted between the two for rotation about the horn axis. As described a circular waveguide (not shown) feeds a square-section waveguide horn 10, a rotatable joint being provided. The horn 10 is directed towards a paraboloidal reflector 42 and has an aperture in its upper surface through which energy can pass. The radiofrequency stages of a transducer, which may be a receiver for radio astronomy investigation, are mounted in an enclosure 24. A disc 22 mounts the smaller end of the horn for rotation in the front wall of this enclosure and the larger end of the horn carries disc 14 supported by rollers 16 and 18 so that the horn and reflector assembly can be rotated about the horn axis by motor 36, reduction gearing 20 and belt 38 asnecessary for alignment and tracking. The aerial system is carried on a turntable 12 rotatable by motor 28 for movement in azimuth for the same purpose. To provide a conical scan for automatic tracking an elongated bi-conical body 44 of dielectric material is mounted within the horn 10 so that its axis makes an angle with the horn axis. This body is supported at its centre by an oblique conical structure 46 of material of low dielectric constant mounted for rotation in rollers 48. A motor 50 is provided to drive the support 46 and thus rotate the body 44 round the horn axis. The dielectric material used to form body 44 may be a ferrite and whilst it is not essential to use a bi-conical shape tapering is 'desirable to reduce reflections.
GB18454/60A 1959-05-28 1960-05-25 Improvements in or relating to scanning antenna systems Expired GB889490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US816514A US3021524A (en) 1959-05-28 1959-05-28 Scanning horn-reflector antenna

Publications (1)

Publication Number Publication Date
GB889490A true GB889490A (en) 1962-02-14

Family

ID=25220846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18454/60A Expired GB889490A (en) 1959-05-28 1960-05-25 Improvements in or relating to scanning antenna systems

Country Status (4)

Country Link
US (1) US3021524A (en)
DE (1) DE1204716B (en)
FR (1) FR1259139A (en)
GB (1) GB889490A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140975A (en) * 1983-05-31 1984-12-05 Harris Corp Rotary scan antenna

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231315B (en) * 1962-01-08 1966-12-29 Beteiligungs & Patentverw Gmbh Horn parabolic antenna with an essentially horizontal horn
US3284802A (en) * 1963-11-12 1966-11-08 Bell Telephone Labor Inc Folded horn-reflector antenna wherein primary reflector is nonreflective at portion where specular reflection to feed would otherwise occur
US3357022A (en) * 1963-12-05 1967-12-05 Bell Telephone Labor Inc Folded horn-reflector antenna structure
US3423756A (en) * 1964-09-10 1969-01-21 Rca Corp Scanning antenna feed
US4928109A (en) * 1988-10-14 1990-05-22 Cubic Defense Systems, Inc. Modulated scanning antenna
FR2829299B1 (en) * 2001-09-05 2006-03-10 Texas De France BALANCING EQUATORIAL MOUNT FOR PARABOLIC SATELLITE ANTENNA
CN108565555A (en) * 2018-06-21 2018-09-21 河南师范大学 The faces high-gain H electromagnetic horn
CN114871525A (en) * 2022-04-18 2022-08-09 成都四威高科技产业园有限公司 Pyramid horn antenna furnace brazing process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416675A (en) * 1941-11-26 1947-03-04 Bell Telephone Labor Inc Horn antenna system
US2422579A (en) * 1942-08-26 1947-06-17 Westinghouse Electric Corp Reflector for electromagnetic radiation
US2774067A (en) * 1949-08-17 1956-12-11 Rca Corp Microwave scanning antenna system
US2817837A (en) * 1953-06-16 1957-12-24 Bell Telephone Labor Inc Microwave horn and paraboloidal reflector antenna system
US2887684A (en) * 1954-02-01 1959-05-19 Hughes Aircraft Co Dielectric lens for conical scanning
US2809371A (en) * 1954-09-30 1957-10-08 Rca Corp Liquid trap for vertically mounted horn antenna
FR1150023A (en) * 1956-04-24 1958-01-06 Directional circular polarized antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140975A (en) * 1983-05-31 1984-12-05 Harris Corp Rotary scan antenna

Also Published As

Publication number Publication date
US3021524A (en) 1962-02-13
DE1204716B (en) 1965-11-11
FR1259139A (en) 1961-04-21

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