EP0271778A3 - Half circular 360o scanning radar array - Google Patents

Half circular 360o scanning radar array Download PDF

Info

Publication number
EP0271778A3
EP0271778A3 EP87117917A EP87117917A EP0271778A3 EP 0271778 A3 EP0271778 A3 EP 0271778A3 EP 87117917 A EP87117917 A EP 87117917A EP 87117917 A EP87117917 A EP 87117917A EP 0271778 A3 EP0271778 A3 EP 0271778A3
Authority
EP
European Patent Office
Prior art keywords
half circular
scanning radar
radar array
array
elements
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.)
Withdrawn
Application number
EP87117917A
Other languages
German (de)
French (fr)
Other versions
EP0271778A2 (en
Inventor
Jeffrey Thomas Nemit
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of EP0271778A2 publication Critical patent/EP0271778A2/en
Publication of EP0271778A3 publication Critical patent/EP0271778A3/en
Withdrawn legal-status Critical Current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
    • H01Q3/24—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
    • H01Q3/245—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 in the focal plane of a focussing device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • 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
    • H01Q3/2658—Phased-array fed focussing structure
    • 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

Abstract

An improved radar scanning antenna employing a phased array of directional radiating elements (82,90,92) which are aligned in a segment of a curved line, such as a half circular array (80), and which employs means (94) for exciting the elements in selected directions over a 360° scan.
EP87117917A 1986-12-04 1987-12-03 Half circular 360o scanning radar array Withdrawn EP0271778A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93793286A 1986-12-04 1986-12-04
US937932 1992-08-31

Publications (2)

Publication Number Publication Date
EP0271778A2 EP0271778A2 (en) 1988-06-22
EP0271778A3 true EP0271778A3 (en) 1990-02-07

Family

ID=25470591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117917A Withdrawn EP0271778A3 (en) 1986-12-04 1987-12-03 Half circular 360o scanning radar array

Country Status (1)

Country Link
EP (1) EP0271778A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336341A (en) * 1997-02-14 1999-10-20 Easat Antennas Ltd Method and apparatus for the remote clearance of explosive devices
GB9703077D0 (en) * 1997-02-14 1997-04-02 Easat Antennas Ltd Method and apparatus for the remote clearance of explosive devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816830A (en) * 1970-11-27 1974-06-11 Hazeltine Corp Cylindrical array antenna
US4044360A (en) * 1975-12-19 1977-08-23 International Telephone And Telegraph Corporation Two-mode RF phase shifter particularly for phase scanner array
US4150382A (en) * 1973-09-13 1979-04-17 Wisconsin Alumni Research Foundation Non-uniform variable guided wave antennas with electronically controllable scanning

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816830A (en) * 1970-11-27 1974-06-11 Hazeltine Corp Cylindrical array antenna
US4150382A (en) * 1973-09-13 1979-04-17 Wisconsin Alumni Research Foundation Non-uniform variable guided wave antennas with electronically controllable scanning
US4044360A (en) * 1975-12-19 1977-08-23 International Telephone And Telegraph Corporation Two-mode RF phase shifter particularly for phase scanner array

Also Published As

Publication number Publication date
EP0271778A2 (en) 1988-06-22

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