Broadband helical antennas

Details Broadband helical antennas Broadband helical antennas

1978-06-19

1979-09-25

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Spiral or helical type

343749, H01Q 900, H01Q 136

Patent

active

041692675

ABSTRACT:
Increased bandwidth, reduced axial ratios and improved beam shape and sidelobe characteristics are achieved with non-uniform diameter helical antennas. The antenna structures are configured to various combinations of tapered diameter and uniform sections. By varying the number of turns, diameters of the helix sections and lengths of the various helix sections, antennas are synthesized to yield specific gain-frequency response characteristics.

REFERENCES:
patent: 2966679 (1960-12-01), Harris
patent: 3569979 (1971-03-01), Munk et al.
patent: 3683393 (1972-08-01), Self
patent: 3940772 (1976-02-01), Ben-dov
Angelakos, D. J. et al., "Modifications on the Axial-Mode Helical Antenna," in IEEE Proceedings, Apr. 1967, pp. 558-559.

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