Communications: radio wave antennas – Antennas – Wave guide type
Patent
1991-08-06
1996-02-13
Bovernick, Rodney B.
Communications: radio wave antennas
Antennas
Wave guide type
343853, H01Q 1300
Patent
active
054914892
ABSTRACT:
A high gain antenna that produces a pencil beam along the ground and a lower gain antenna that produces a beam extending above the pencil beam are coupled to a source of r.f. pulses so that the amplitude of the r.f. pulses applied to the high gain antenna is less than the amplitude of the r.f. pulses applied to the lower gain antenna during airplane detection and the full amplitude of the r.f. pulses during a pulse segment is applied to the high gain antenna during wind pattern detection.
REFERENCES:
patent: Re33152 (1990-01-01), Atlas
patent: 2913723 (1959-11-01), Thourel
patent: 3801932 (1974-04-01), Goldie
patent: 4342997 (1982-08-01), Evans
patent: 4449128 (1984-05-01), Weir
patent: 4451832 (1984-05-01), Stites
patent: 4845507 (1989-07-01), Archer et al.
Patent Abstracts Of Japan vol. 6, 103(E-112)(981) 12 Jun. 1982 & JP-A-57 033 804 (Nippon).
Charlton Gregory G.
Cho Ching-Fai
Johnson Robert E.
Sterns William G.
Bovernick Rodney B.
Hogan Patrick M.
ITT Corporation
Wise Robert E.
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