Communications: directive radio wave systems and devices (e.g. – Directive – Including polarized signal communication transmitter or...
Patent
1984-06-15
1986-11-18
Lieberman, Eli
Communications: directive radio wave systems and devices (e.g.,
Directive
Including polarized signal communication transmitter or...
343778, 333156, 342427, H01Q 2106, H01Q 2124
Patent
active
046238913
ABSTRACT:
A technique for reducing cross-polarized signals in the axis of four-port al-polarized antennas. The resulting lower cross-polarized signals reduce a tracking antenna's susceptibility to tracking errors and to breaklocks. Some energy from the transmission line connected to the (V) port is coupled, after proper attenuation and phase adjustment, and transmitted through the (H) port, thereby nulling out the (V) cross-polarized pattern.
REFERENCES:
patent: 3028591 (1962-04-01), Hattingly
patent: 3308468 (1967-03-01), Hannan
patent: 3618092 (1971-11-01), Waineo
patent: 4198641 (1980-04-01), Gibson
Elbaum Saul
Lane Anthony T.
Lieberman Eli
McDonald Thomas E.
The United States of America as represented by the Secretary of
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