Dipole array with means for compensating feedline parasitic curr

Details Dipole array with means for compensating feedline parasitic curr Dipole array with means for compensating feedline parasitic curr

1983-03-04

1986-03-11

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343815, H01Q 2110

Patent

active

045757283

ABSTRACT:
A vertical dipole array (2, 3 to 2.sup.(n), 3.sup.(n)) is formed on a substrate (1) using stripline techniques. The dipoles are supplied with RF energy from a feed system consisting of stripline conductors (4, 4', 5, 6, 7, 7', 9, 12). By a parasitic compensating radiator (11) provided opposite these conductors on the same side of the substrate, the influence of the conductors on the radiation pattern of the dipoles is largely compensated for.
The conductors of the feed system are arranged so that a combination of a parallel feed and an equal line length series feed (or, if the radiation pattern is to be raised, a series feed with suitably chosen line lengths) is obtained.

REFERENCES:
patent: 3541559 (1970-11-01), Evans
patent: 3681769 (1972-08-01), Perrotti et al.
patent: 3750185 (1973-07-01), Evans
patent: 3887925 (1975-06-01), Ranghelli et al.
patent: 4097868 (1978-06-01), Borowick
patent: 4514734 (1985-04-01), Cermignani

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