GB1236629A - Bi-directional electronically scanned antenna system - Google Patents

Bi-directional electronically scanned antenna system

Info

Publication number
GB1236629A
GB1236629A GB57915/68A GB5791568A GB1236629A GB 1236629 A GB1236629 A GB 1236629A GB 57915/68 A GB57915/68 A GB 57915/68A GB 5791568 A GB5791568 A GB 5791568A GB 1236629 A GB1236629 A GB 1236629A
Authority
GB
United Kingdom
Prior art keywords
elements
lens
horn
horns
phase shifters
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
GB57915/68A
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.)
Emerson Electric Co
Original Assignee
Emerson Electric Co
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 Emerson Electric Co filed Critical Emerson Electric Co
Publication of GB1236629A publication Critical patent/GB1236629A/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
    • H01Q3/26—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
    • H01Q3/34—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 electrical means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/005—Antennas or antenna systems providing at least two radiating patterns providing two patterns of opposite direction; back to back antennas
    • 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
    • H01Q3/46—Active lenses or reflecting arrays

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1,236,629. Aerials. EMERSON ELECTRIC CO. 5 Dec., 1968 [5 Dec., 1967], No. 57915/68. Heading H4A. Beams are formed on each side of an electronically scanned lens by feed system means energizing sets of radiating elements which are disposed on each face of the lens, and which are connected by an array of phase shifters. As described, an aerial system includes a transmission type lens 2, Fig. 3, having large numbers of radiating elements 4, 5 on opposite faces 6, 7, pairs of said elements being connected together through reciprocal or non-reciprocal type phase shifters 3. A horn 8 feeds the elements 5, so that a beam 10 is radiated by the elements 4. Similarly, a horn 9 feeds the elements 4, so that a beam 11 is radiated by the elements 5. Drivers 14 controlled by a computer 15 adjust the settings of the phase shifters 3, and the spherical wave fronts from the horns 8, 9 are converted to provide steerable radiated phase fronts which may be planar or, for specially shaped beams, non-planar. A transmitter 16 and a receiver 17 are coupled through a duplexer 18. The horns 8, 9, Fig. 5, may be off-set to reduce aperture blocking. Two systems may be provided which are placed one above the other and at right angles, so that 360 degrees azimuthal coverage is obtained although each side of each lens scans over only Œ45 degrees. In another embodiment the feed horns (208), (209), Fig. 7 (not shown), are polarized, and polarized reflectors (219), (220) are provided on the faces of the lens, each of which reflects the phase front from the opposite horn but passes that from the adjacent horn. Thus, beams (210), (211) are formed on the same sides of the lens as their generating feed horns (208), (209). Reciprocal type phase shifters (203) must be used.
GB57915/68A 1967-12-05 1968-12-05 Bi-directional electronically scanned antenna system Expired GB1236629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68807267A 1967-12-05 1967-12-05

Publications (1)

Publication Number Publication Date
GB1236629A true GB1236629A (en) 1971-06-23

Family

ID=24763002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57915/68A Expired GB1236629A (en) 1967-12-05 1968-12-05 Bi-directional electronically scanned antenna system

Country Status (6)

Country Link
US (1) US3430242A (en)
BE (1) BE725013A (en)
ES (1) ES361117A1 (en)
FR (1) FR1596807A (en)
GB (1) GB1236629A (en)
NL (1) NL6817487A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648284A (en) * 1969-08-06 1972-03-07 Westinghouse Electric Corp Two-face phased array
US3710382A (en) * 1971-04-14 1973-01-09 Cossor A Ltd Secondary radar
DE2405520A1 (en) * 1974-02-06 1975-08-14 Siemens Ag PHASE CONTROLLED ANTENNA ARRANGEMENT
US4044360A (en) * 1975-12-19 1977-08-23 International Telephone And Telegraph Corporation Two-mode RF phase shifter particularly for phase scanner array
JPS5335458A (en) * 1976-09-14 1978-04-01 Toshiba Corp Antenna
JPS5335461A (en) * 1976-09-14 1978-04-01 Toshiba Corp Antenna
JPS5335460A (en) * 1976-09-14 1978-04-01 Toshiba Corp Antenna
JPS5448468A (en) * 1977-09-26 1979-04-17 Boeicho Gijutsu Kenkyu Honbuch Multiibeam antenna
US4580140A (en) * 1983-06-17 1986-04-01 The United States Of America As Represented By The Secretary Of The Navy Twin aperture phased array lens antenna
US5233356A (en) * 1986-07-29 1993-08-03 Hughes Aircraft Company Low sidelobe solid state array antenna apparatus and process for configuring an array antenna aperture
US4766438A (en) * 1987-02-27 1988-08-23 Hughes Aircraft Company Three dimensional feed through lens with hemispherical coverage
NL8703113A (en) * 1987-12-23 1988-03-01 Hollandse Signaalapparaten Bv ROUND SEARCH RADAR SYSTEM.
JP3456507B2 (en) * 1996-04-15 2003-10-14 日本電信電話株式会社 Sector antenna
GB0720199D0 (en) * 2007-10-16 2007-11-28 Global View Systems Ltd Wave guide array

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305867A (en) * 1963-11-05 1967-02-21 Raytheon Co Antenna array system

Also Published As

Publication number Publication date
US3430242A (en) 1969-02-25
FR1596807A (en) 1970-06-22
BE725013A (en) 1969-06-05
ES361117A1 (en) 1970-11-01
NL6817487A (en) 1969-06-09

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