Dielectric rod antenna

Details Dielectric rod antenna Dielectric rod antenna

2005-08-09

2005-08-09

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

Measuring signal energy

C342S124000, C324S644000

Reexamination Certificate

active

06927734

ABSTRACT:
A dielectric rod antenna assembly for a level measurement system. The antenna assembly includes a transition structure housed within a coupling sleeve. The transition structure includes a short-circuited waveguide filled with a dielectric material and an exciter element projecting through the waveguide into the material. The transition structure directs electromagnetic energy through the bottom of the dielectric material into a rod antenna attached to the bottom of the coupling sleeve for propagation within the container. The dielectric material includes a longitudinal axial bore having a tapered tip to provide a dielectric-lined waveguide. The bottom end of the dielectric is encircled with a metal ring of a diameter larger than the dielectric to smooth the transition into the rod antenna.

REFERENCES:
patent: 6097346 (2000-08-01), Fehrenbach et al.
patent: 6155112 (2000-12-01), Eckert et al.
patent: 6202485 (2001-03-01), Wien et al.
patent: 6499346 (2002-12-01), Wien et al.
patent: 6549174 (2003-04-01), Kloefer et al.
patent: 6825798 (2004-11-01), McGregor

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