Omnidirectional broadband antenna

Details Omnidirectional broadband antenna Omnidirectional broadband antenna

2006-04-11

2006-04-11

Lee, Wilson (Department: 2821)

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

C343S791000

Reexamination Certificate

active

07027004

ABSTRACT:
A broadband omnidirectional antenna includes an antenna element projecting from a base plate or counterweight surface. The antenna element has an outer surface which extends away from the base plate. The base plate has a recess in the area of which the foot point of the antenna element (which is in the form of a monopole) is arranged such that it is electrically conductively isolated from the base plate or from the counterweight surface. The antenna element is fed by means of a series or capacitive inner conductor line coupling.

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Ch.Braun et al, “Elektrisch kurze Antennen zur Feldmessung”, Fraunhofer-Institut für Naturwissenschaftlich-Technische Trendanalysen (INT) (Mar. 1996).

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