Helical band antenna

Communications: radio wave antennas – Antennas – Spiral or helical type

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H01Q 136

Patent

active

040514811

ABSTRACT:
An antenna is formed of a flattened tube or plate rectangular in cross section and arranged on a tubular support member in the form of a helix in which the outside diameter of the helix decreases gradually from the base end to the outer end. The wide faces of the helical tube or plate are arranged to face in the direction of the axis of the tubular support member.

REFERENCES:
patent: 3509578 (1970-04-01), Cribb
patent: 3629937 (1971-12-01), Fredriksson
patent: 3683393 (1972-08-01), Self
patent: 3836979 (1974-09-01), Kurland et al.

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