GB1278891A - Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor - Google Patents

Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor

Info

Publication number
GB1278891A
GB1278891A GB08642/70A GB1864270A GB1278891A GB 1278891 A GB1278891 A GB 1278891A GB 08642/70 A GB08642/70 A GB 08642/70A GB 1864270 A GB1864270 A GB 1864270A GB 1278891 A GB1278891 A GB 1278891A
Authority
GB
United Kingdom
Prior art keywords
aerial
unit
elements
coupler
binary
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
GB08642/70A
Inventor
J R Mark
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB08642/70A priority Critical patent/GB1278891A/en
Priority to SE7101346A priority patent/SE374231B/xx
Priority to US132765A priority patent/US3707719A/en
Priority to FR7112750A priority patent/FR2086168B1/fr
Priority to NL7105113A priority patent/NL7105113A/xx
Priority to DE2118550A priority patent/DE2118550B2/en
Publication of GB1278891A publication Critical patent/GB1278891A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/44—Monopulse radar, i.e. simultaneous lobing
    • G01S13/4409—HF sub-systems particularly adapted therefor, e.g. circuits for signal combination
    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/242—Circumferential scanning
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1278891 Aerials MARCONI CO Ltd 24 Nov 1970 [18 April 1970] 18642/70 Heading H4A An aerial array consists of a plurality of elements which are arranged along a circular arc, and it is associated with a feeder system providing electronic scanning. The aerial elements are divided into sets each containing the same plurality of adjacent, equally spaced elements. Each unit consists of a plurality of different corresponding aerial elements, at least one in each set. A power dividing feeder system is divided into unit feeder arrangements, each leading through switch means and phase shifters, which are adjusted to determine the general direction of radiation, to selectable pairs of aerial elements in different units. An adjustable phase shifter means is also provided in the path to at least one of the two units fed by each unit feeder arrangement for adjusting the power division between the unit, and each such arrangement includes a four-port-3dB coupler. The two ports of each coupler remote from the aerial are respectively connected to first and second binary branching arrangements, an adjustable phase-shifter means being interposed in the connection to the second branching arrangement. In operation, sum radiation pattern signals are obtainable by the first binary branching arrangement, and difference radiation pattern signals are obtainable by the second binary branching arrangement. As described, a plurality n of aerial elements is arranged around the circumference of a circle and is divided into three sets (a 1 to a n/3 ), (b 1 to b n/3 ), (c 1 to c n/3 ), each of which is disposed along a 120 degree arc of the circle. A unit consists of one corresponding aerial element from each set, and for feeding purposes the units are associated in pairs containing the aerial elements (a i , b i , c i ) and (a i+n/6 , b i+n/6 , c i+n/6 ) respectively, where i is an integer from 1 to n/6. Switches (Si, S i+n/6 ), Fig. 3, enable any element from one unit to be selected with any element from the other unit and to be connected through respective adjustable phase shifters # i , # i+n/6 to respective output ports of a - 3dB coupler D i . One input port of the coupler D i is directly connected to an output of a binary power divider B 1 and the other input port is connected through a two-bit (zero or # radians) phase shifter P i to an output of a binary power divider B 2 . Reference is made to Specification 1,171,626.
GB08642/70A 1970-04-18 1970-04-18 Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor Expired GB1278891A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB08642/70A GB1278891A (en) 1970-04-18 1970-04-18 Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor
SE7101346A SE374231B (en) 1970-04-18 1971-02-03
US132765A US3707719A (en) 1970-04-18 1971-04-09 Scanning aerial systems and associated arrangements therefor
FR7112750A FR2086168B1 (en) 1970-04-18 1971-04-09
NL7105113A NL7105113A (en) 1970-04-18 1971-04-16
DE2118550A DE2118550B2 (en) 1970-04-18 1971-04-16 Emitter arrangement for radar purposes with electronically swiveling directional characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08642/70A GB1278891A (en) 1970-04-18 1970-04-18 Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor

Publications (1)

Publication Number Publication Date
GB1278891A true GB1278891A (en) 1972-06-21

Family

ID=10115965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08642/70A Expired GB1278891A (en) 1970-04-18 1970-04-18 Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor

Country Status (6)

Country Link
US (1) US3707719A (en)
DE (1) DE2118550B2 (en)
FR (1) FR2086168B1 (en)
GB (1) GB1278891A (en)
NL (1) NL7105113A (en)
SE (1) SE374231B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806932A (en) * 1972-06-15 1974-04-23 Nat Aeronautic And Space Admin Amplitude steered array
US4021813A (en) * 1974-07-01 1977-05-03 The United States Of America As Represented By The Secretary Of The Navy Geometrically derived beam circular antenna array
US3964066A (en) * 1975-01-02 1976-06-15 International Telephone And Telegraph Corporation Electronic scanned cylindrical-array antenna using network approach for reduced system complexity
US3999182A (en) * 1975-02-06 1976-12-21 The Bendix Corporation Phased array antenna with coarse/fine electronic scanning for ultra-low beam granularity
AU531239B2 (en) * 1978-06-15 1983-08-18 Plessey Overseas Ltd. Directional arrays
US4799065A (en) * 1983-03-17 1989-01-17 Hughes Aircraft Company Reconfigurable beam antenna

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176297A (en) * 1962-11-08 1965-03-30 Sperry Rand Corp Antenna systems
GB1171626A (en) * 1966-08-31 1969-11-26 Marconi Co Ltd Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor
US3380053A (en) * 1966-12-22 1968-04-23 Gen Electric Duplexing means for microwave systems utilizing phased array antennas

Also Published As

Publication number Publication date
DE2118550B2 (en) 1974-02-21
DE2118550C3 (en) 1974-10-17
DE2118550A1 (en) 1971-12-09
SE374231B (en) 1975-02-24
NL7105113A (en) 1971-10-20
US3707719A (en) 1972-12-26
FR2086168B1 (en) 1975-01-17
FR2086168A1 (en) 1971-12-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee