Tunable dipole antenna

Details Tunable dipole antenna Tunable dipole antenna

1977-07-22

1980-05-06

Lieberman, Eli

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

343750, 343822, 343823, H01Q 916

Patent

active

042019907

ABSTRACT:
A radio antenna having linear radiating elements, a loading coil electrically connected to these linear radiating elements and a tuning disc located within the loading coil and rotatable about a diameter of the loading coil whereby said antenna can be easily and accurately tuned to the exact frequency of operation selected. The disc is preferably electrically conductive such that when its plane is perpendicular to the axis of the coil the coil will have a minimum inductance.

REFERENCES:
patent: 2413451 (1946-12-01), Johnson
patent: 2563243 (1951-08-01), Hills
patent: 3530410 (1970-09-01), Parker
patent: 3540057 (1970-11-01), Persson et al.
patent: 3623113 (1971-11-01), Faigen
patent: 3671972 (1972-06-01), Spilsbury

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