GB1142787A - Improvements in or relating to aerial systems - Google Patents

Improvements in or relating to aerial systems

Info

Publication number
GB1142787A
GB1142787A GB34959/65A GB3495965A GB1142787A GB 1142787 A GB1142787 A GB 1142787A GB 34959/65 A GB34959/65 A GB 34959/65A GB 3495965 A GB3495965 A GB 3495965A GB 1142787 A GB1142787 A GB 1142787A
Authority
GB
United Kingdom
Prior art keywords
fed
slots
intermediate point
radiation
phase
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
GB34959/65A
Inventor
Mervyn James Crumpen
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 GB34959/65A priority Critical patent/GB1142787A/en
Priority to DE19661541481 priority patent/DE1541481A1/en
Priority to US568162A priority patent/US3456261A/en
Priority to SE10764/66A priority patent/SE349901B/xx
Priority to FR73166A priority patent/FR1539626A/en
Publication of GB1142787A publication Critical patent/GB1142787A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/12—Longitudinally slotted cylinder antennas; Equivalent structures
    • H01Q13/14—Skeleton cylinder antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/004—Antennas or antenna systems providing at least two radiating patterns providing two or four symmetrical beams for Janus application

Abstract

1,142,787. Aerials. MARCONI CO. Ltd. 11 May, 1966 [16 Aug., 1965], No. 34959/65. Heading H4A. An aerial comprises a waveguide 12 having in a narrow wall thereof a set of radiating slots on each side of an intermediate point in its length, one set of slots 13 being fed in phase and adjacent ones of the other set of slots 14 being fed in anti-phase and each set having the same main direction of radiation. A feeder 15 at the intermediate point may be used, when each array is terminated by a matching load 4, or, alternatively, the two ends of the waveguide 12 may be fed in phase and a matching load provided at the intermediate point. The two sets of slots have a main direction of radiation 18 (or 19) when fed from the intermediate point and a different main direction of radiation 18<SP>1</SP> (or 19<SP>1</SP>) when fed from the ends. Switching means may be provided for changing from one way of feeding to the other. The arrangement may be used in an airborne Doppler navigation equipment.
GB34959/65A 1965-08-16 1965-08-16 Improvements in or relating to aerial systems Expired GB1142787A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB34959/65A GB1142787A (en) 1965-08-16 1965-08-16 Improvements in or relating to aerial systems
DE19661541481 DE1541481A1 (en) 1965-08-16 1966-07-22 Waveguide slot radiator
US568162A US3456261A (en) 1965-08-16 1966-07-27 Slotted waveguide aerial system
SE10764/66A SE349901B (en) 1965-08-16 1966-08-09
FR73166A FR1539626A (en) 1965-08-16 1966-08-16 Split waveguide antennas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34959/65A GB1142787A (en) 1965-08-16 1965-08-16 Improvements in or relating to aerial systems

Publications (1)

Publication Number Publication Date
GB1142787A true GB1142787A (en) 1969-02-12

Family

ID=10372116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34959/65A Expired GB1142787A (en) 1965-08-16 1965-08-16 Improvements in or relating to aerial systems

Country Status (4)

Country Link
US (1) US3456261A (en)
DE (1) DE1541481A1 (en)
GB (1) GB1142787A (en)
SE (1) SE349901B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257881A2 (en) * 1986-08-29 1988-03-02 Decca Limited Slotted waveguide antenna and array

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1475111A (en) * 1974-01-23 1977-06-01 Microwave & Electronic Syst Intrusion sensor
US4191953A (en) * 1975-01-23 1980-03-04 Microwave and Electronic System Limited Intrusion sensor and aerial therefor
CN104051858A (en) * 2014-05-31 2014-09-17 曹学磊 Slotted waveguide antenna

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293645A (en) * 1964-07-09 1966-12-20 Elza R Farley Slotted cylindrical antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257881A2 (en) * 1986-08-29 1988-03-02 Decca Limited Slotted waveguide antenna and array
EP0257881A3 (en) * 1986-08-29 1989-09-20 Decca Limited Slotted waveguide antenna and array

Also Published As

Publication number Publication date
DE1541481A1 (en) 1969-10-09
SE349901B (en) 1972-10-09
US3456261A (en) 1969-07-15

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