GB889490A - Improvements in or relating to scanning antenna systems - Google Patents
Improvements in or relating to scanning antenna systemsInfo
- 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
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
Landscapes
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
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.
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)
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 (9)
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 |
US20210318120A1 (en) * | 2020-04-09 | 2021-10-14 | US Gov't as represented by Secretary of Air Force | Compact Star Tracker Using Off‐Axis Parabolic Mirror |
CN114871525B (en) * | 2022-04-18 | 2024-05-28 | 成都四威高科技产业园有限公司 | Pyramid horn antenna furnace brazing process |
Family Cites Families (7)
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 |
-
1959
- 1959-05-28 US US816514A patent/US3021524A/en not_active Expired - Lifetime
-
1960
- 1960-05-04 DE DEW27777A patent/DE1204716B/en active Pending
- 1960-05-23 FR FR828021A patent/FR1259139A/en not_active Expired
- 1960-05-25 GB GB18454/60A patent/GB889490A/en not_active Expired
Cited By (1)
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 |
---|---|
FR1259139A (en) | 1961-04-21 |
DE1204716B (en) | 1965-11-11 |
US3021524A (en) | 1962-02-13 |
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