Universal dipole with adjustable length antenna elements

Details Universal dipole with adjustable length antenna elements Universal dipole with adjustable length antenna elements

2006-10-03

2006-10-03

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S893000, C343S747000, C343S821000, C343S861000, C343S884000, C343S797000

Reexamination Certificate

active

07116281

ABSTRACT:
Described is a universal dipole which may include a feed line coupled to a first fitting; a balun coupled to a second fitting; a first variable length antenna element coupled to the first fitting; a second variable length antenna element coupled to the second fitting; a support plate holding the feed line and the balun at a fixed spacing, the support plate including a short circuit path between the feed line and the balun; and a sliding short assembly attachable between the feed line and the balun to create a short circuit at variable distances along the feed line and the balun.

REFERENCES:
patent: 3396398 (1968-08-01), Dunlavy, Jr.
patent: 3618105 (1971-11-01), Bruene et al.
patent: 4369449 (1983-01-01), MacDougall
patent: 4485385 (1984-11-01), Ralston
patent: 4611214 (1986-09-01), Campbell et al.
patent: 5532708 (1996-07-01), Krenz et al.
patent: 6933907 (2005-08-01), Shirosaka et al.

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