Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1986-08-01
1987-10-13
Sikes, William L.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343808, 343820, H01Q 2126
Patent
active
047001968
ABSTRACT:
Two cosited omnidirectional biconical antennas are respectively tilted plus nd minus 45 degrees (.+-.45.degree.) with respect to the vertical and, therefore, are perpendicular (90.degree.) with respect to each other to effect polarization mismatch and near field decoupling. In combination with the described antennae orientation, high impedance cable chokes are added in series with the coaxial cable antennae feed lines to suppress induced parasitic rf currents.
REFERENCES:
patent: 2229733 (1941-01-01), Goldmann
patent: 2625655 (1953-01-01), Middlemark
patent: 2709219 (1955-05-01), Schmidt
patent: 3879735 (1975-04-01), Campbell et al.
patent: 4149170 (1979-04-01), Campbell et al.
Arnold; Communications; vol. AP-18, No. 5; Sep. 1970; pp. 697, 698.
Campbell Donn V.
Dubowicz Palemon W.
Hoverter Robert T.
Kanars Sheldon
Mullarney John K.
Murray Jeremiah G.
Sikes William L.
The United States of America as represented by the Secretary of
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