Portable HF antenna

Details Portable HF antenna Portable HF antenna

1984-12-07

1987-02-10

Lieberman, Eli

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

343901, H01Q 110, H01Q 918

Patent

active

046426507

ABSTRACT:
A fully collapsible, telescoping asymmetrically loaded half-wavelength vertical antenna. A base of the antenna formed of telescope sections, carries at its upper end an integral, coaxial LC matching network. Coaxially telescoped within the base is a mast formed of multiple telescoping sections, which may be extended and secured in sequence from the ground by an unassisted user. The matching network includes a coil wound concentrically about a form at the upper end of the base, the mast having a lower section telescoped within the coil by a controllable extent for providing preselected capacitance with the base. The upper end of the base serves as the feedpoint.

REFERENCES:
patent: 2118429 (1938-05-01), Duttera
patent: 2642754 (1953-06-01), De Conti
patent: 3474453 (1969-10-01), Ireland
patent: 3541558 (1970-11-01), Rhein
patent: 4222053 (1980-09-01), Newcomb
patent: 4442436 (1984-04-01), Newcomb
patent: 4459597 (1984-07-01), Blaese

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