Antenna with tunable helical resonator

Details Antenna with tunable helical resonator Antenna with tunable helical resonator

1982-05-17

1984-07-17

Lieberman, Eli

Communications: radio wave antennas

Antennas

With lumped reactance for loading antenna

336 75, 336136, 343894, H01Q 900, H01Q 140

Patent

active

044608969

ABSTRACT:
An antenna suitable for use in the high frequency (HF) ranges includes a resonator tunable over a predetermined frequency band. The resonator consists of an insulated wire wound over a dielectric rod. Tuning is effected by sliding a metallic sleeve disposed in frictional contact over the wire. A multiplicity of these resonator units may be mounted on a single collar at different angles. Each of the resonator units will respond to a particular frequency. The remaining devices operate as a load on the antenna assembly. The antenna assembly may also be mounted on a conventional mobile antenna by means of an adaptor unit.

REFERENCES:
patent: 743346 (1903-11-01), Swain
patent: 2753392 (1956-07-01), Hebeler
patent: 2966678 (1960-12-01), Harris
patent: 3798654 (1974-03-01), Martino et al.
patent: 4080604 (1978-03-01), Wosniewski

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