Dipole antenna structure

Details Dipole antenna structure Dipole antenna structure

1977-07-05

1979-12-25

Lieberman, Eli

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

343856, H01Q 916

Patent

active

041808193

ABSTRACT:
A preferably vertically oriented dipole antenna structure comprises a downwardly extending coaxial cable-like connector at the bottom of the structure attached to and insulated from a dipole element-forming sleeve whose upper end is rigidly connected to an insulating housing. The upper end of the housing supports a dipole element-forming rod extending vertically upwardly therefrom. The coaxial cable-type connector includes an outer rotatable conductive sleeve extending coaxially of the dipole element-forming sleeve and a central downwardly extending plug-in pin, the sleeve and the plug-in pin being coupled and connected to a cable extending through the dipole element-forming sleeve to a point within the insulating housing where a pair of cable conductors make connection to inductive coupling means for coupling signals between said conductors and the inner ends of the dipole element-forming sleeve and rod.

REFERENCES:
patent: 2492404 (1949-12-01), Streib et al.
patent: 3172109 (1965-03-01), Senrui
patent: 3259901 (1966-07-01), Bykerk
patent: 3588903 (1971-06-01), Hampton

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