Coaxial antennas with ungrounded outer conductor section

Details Coaxial antennas with ungrounded outer conductor section Coaxial antennas with ungrounded outer conductor section

1998-03-30

1999-11-30

Le, Hoanganh

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

343791, H01Q 904

Patent

active

059950595

ABSTRACT:
A stable coaxial antenna for broad band and narrow band applications is described. The antenna disclosed is preferably made of a conventional coaxial cable having a center conductor, tubular outer conductor surrounding the center conductor and an insulator between the conductors. A gap is formed in at least the outer conductor to form two outer conductor sections. In a first embodiment the field is provided between the gap and a feed end. In a second embodiment the gap is between both center and outer conductors and the ends of the conductors in the gap are cross connected to form a radiating section and feed section. The coaxial antennas disclosed may be adjusted to synchronize the energy to react favorably to an uncontrolled environment.

REFERENCES:
patent: 2486597 (1949-11-01), Greene
patent: 3031668 (1962-04-01), Bryson
patent: 3139620 (1964-06-01), Leidy et al.
patent: 3315264 (1967-04-01), Brueckmann
patent: 4543583 (1985-09-01), Wurdack
patent: 5252984 (1993-10-01), Dorrie et al.
patent: 5793336 (1998-08-01), Shoemaker et al.

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