H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/17
H01Q 19/10 (2006.01) H01Q 3/20 (2006.01) H01Q 15/22 (2006.01) H01Q 19/195 (2006.01)
Patent
CA 2004724
ANTENNA SYSTEM HAVING AZIMUTH ROTATING DIRECTIVE BEAM WITH SELECTABLE POLARIZATION ABSTRACT A rotating reflector is used to provide a beam scan throughout a predetermined angle such as 360`. A circular polarizer is coupled with the reflector and converts received linearly polarized energy into circularly polarized energy. A fixed feed is configured to receive the reflected circularly polarized energy and converts such energy to linearly polarized energy. The antenna system can receive the same linear polarization of energy throughout its 360` scan angle without polarization mismatch or orthogonal polarization losses. The relative orientation of the two polarizers may be adjusted to receive any orientation of linear polarization of energy throughout the scan angle. For example, they may be oriented so that the antenna system receives vertically polarized energy, slant 45` linearly polarized energy, or horizontally polarized energy.
Hughes Aircraft Company
Sim & Mcburney
Tsuda George I.
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