Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2007-01-30
2007-01-30
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S774000, C343S807000
Reexamination Certificate
active
11121617
ABSTRACT:
The dipole antenna includes a first antenna element assembly and a second antenna element assembly arranged in a dipole antenna configuration. The first antenna element assembly has one or more conical antenna elements, and the second antenna element assembly has a series of conical antenna elements with each successive conical antenna element at least partially within a prior conical antenna element. Each of the first and second antenna dipole assemblies may also include a respective disk antenna element and a filament antenna element. The antenna has a stable beamwidth and broad bandwidth over a range of frequencies.
REFERENCES:
patent: 2175252 (1939-10-01), Carter
patent: 2368663 (1945-02-01), Kandoian
patent: 2476469 (1949-07-01), Walker
patent: 3618107 (1971-11-01), Spanos
patent: 3737906 (1973-06-01), Maynard
patent: 4143377 (1979-03-01), Salvat et al.
patent: 5506592 (1996-04-01), MacDonald et al.
patent: 5990845 (1999-11-01), Sharp et al.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Harris Corporation
Le Hoang-anh
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