GB1396827A - Aerial array - Google Patents

Aerial array

Info

Publication number
GB1396827A
GB1396827A GB1784673A GB1784673A GB1396827A GB 1396827 A GB1396827 A GB 1396827A GB 1784673 A GB1784673 A GB 1784673A GB 1784673 A GB1784673 A GB 1784673A GB 1396827 A GB1396827 A GB 1396827A
Authority
GB
United Kingdom
Prior art keywords
aerial
shroud
balun
support
reflector
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
GB1784673A
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.)
BEAM ENG Ltd J
Original Assignee
BEAM ENG Ltd J
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 BEAM ENG Ltd J filed Critical BEAM ENG Ltd J
Priority to GB1784673A priority Critical patent/GB1396827A/en
Publication of GB1396827A publication Critical patent/GB1396827A/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
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/28—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
    • 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
    • H01Q19/06—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 refracting or diffracting devices, e.g. lens

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

1396827 Aerials J BEAM ENG Ltd 13 April 1973 17846/73 Heading H4A An aerial array for operation within the frequency range 0À3 to 30 GHz comprises a reflector, an active aerial which is resonant in the fundamental mode within that frequency range, a longitudinally extending support having one or more directors mounted thereupon, and a balun substantially collinear with a line passing through said director or directors. The balun comprises a core and an encircling tubular member having a pair of diametrically opposed slots extending from one end thereof to form a pair of furcations in said tube. Respective feed points of the active aerial are connected to the furcations, the core being connected to the tube at one of said feed points. As described, an active aerial 14 is of the skeleton slot type similar to that described in Specification 1,130,007, although a simple dipole may be used instead. The aerial is supported at the end of a split-tube type balun 18, and a reflector 20 is carried on a sleeve which is adjustable along the balun. The reflector consists of a disc of insulating material which is metallized on the side facing the active aerial. A support 10 carries a plurality of directors 12 and is arranged with one end near to, but not touching the active aerial. A fibreglass shroud 26 surrounds the array and the other end of the support 10 is screwed to the closed end thereof. A transverse rod 28 passes through the support 10 and fits into the shroud thereby holding said support rigidly in place. The rod 28 is preferably fixed to the shroud by screws. The inner core and outer tube of the balun 18 are extended beyond the reflector 20 into a housing member which fits into the end of the shroud 26, and they are terminated in a coaxial cable connector (Fig. 3, not shown). During assembly. the position of the active aerial relative to the end director 16 is adjusted by moving the housing member until optimum results are obtained, when it is fixed to the shroud by a screw.
GB1784673A 1973-04-13 1973-04-13 Aerial array Expired GB1396827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1784673A GB1396827A (en) 1973-04-13 1973-04-13 Aerial array

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1784673A GB1396827A (en) 1973-04-13 1973-04-13 Aerial array

Publications (1)

Publication Number Publication Date
GB1396827A true GB1396827A (en) 1975-06-04

Family

ID=10102254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1784673A Expired GB1396827A (en) 1973-04-13 1973-04-13 Aerial array

Country Status (1)

Country Link
GB (1) GB1396827A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218686A (en) * 1978-02-23 1980-08-19 Blonder-Tongue Laboratories, Inc. Yagi-type antennas and method
US4516133A (en) * 1981-09-09 1985-05-07 Japan Radio Company, Limited Antenna element having non-feed conductive loop surrounding radiating element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218686A (en) * 1978-02-23 1980-08-19 Blonder-Tongue Laboratories, Inc. Yagi-type antennas and method
US4516133A (en) * 1981-09-09 1985-05-07 Japan Radio Company, Limited Antenna element having non-feed conductive loop surrounding radiating element

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee