Communications: radio wave antennas – Antennas – Buried underground or submerged under water
Patent
1980-03-21
1981-06-16
Lieberman, Eli
Communications: radio wave antennas
Antennas
Buried underground or submerged under water
343785, 343873, H01Q 1324
Patent
active
042740975
ABSTRACT:
A compact, directional antenna element for achieving narrow beamwidths and ide bandwidths. The element is formed from a polyrod having a high dielectric constant embedded in a wave guide made of a second medium having a dielectric constant slightly lower than that of the rod.
REFERENCES:
patent: 3128467 (1964-04-01), Lanctot
patent: 3518683 (1970-06-01), Jones
patent: 3818333 (1974-06-01), Walker
patent: 3858214 (1974-12-01), Jones
Krall Albert D.
Syeles Albert M.
Branning A. L.
Lashmit D. A.
Lieberman Eli
Sciascia R. S.
The United States of America as represented by the Secretary of
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