Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Patent
1996-05-16
1998-05-05
Hajec, Donald T.
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
343763, 343791, 343821, 343792, H01Q 300
Patent
active
057481563
ABSTRACT:
An antenna structure has a rotatable dipole array constituting a driven antenna element, a cup mounted around the dipole, a first conductor connected to and extending from the antenna, and a first dielectric mounted around the first conductor. A second conductor is mounted around the first dielectric, and a second dielectric is mounted around the second conductor. A third conductor is mounted around the second dielectric, and the first and second conductors form a quarter-wavelength transformer. The first dielectric maintains a uniform spacing between the first and second conductors, and the third conductor defines a radio-frequency coupling cavity. The second dielectric electrically enlarges the cavity. Thus the physical dimensions of the structure can be reduced without sacrifice of its electrical properties.
REFERENCES:
patent: 2407057 (1946-09-01), Carter
patent: 2412867 (1946-12-01), Briggs et al.
patent: 2478313 (1949-09-01), Peterson
patent: 2491493 (1949-12-01), Goldberg
patent: 2509283 (1950-05-01), Wolf
patent: 2542844 (1951-02-01), Smith
patent: 2552146 (1951-05-01), Brown
patent: 3230534 (1966-01-01), Luke et al.
patent: 4109254 (1978-08-01), Wolosczuk
patent: 4504836 (1985-03-01), Seavey
patent: 4841261 (1989-06-01), Augustin
patent: 4940989 (1990-07-01), Austin
patent: 5103237 (1992-04-01), Weber
patent: 5248988 (1993-09-01), Makino
patent: 5392055 (1995-02-01), Madnick et al.
Chaparral Communications
Hajec Donald T.
Ho Tan
Pelton William E.
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