Method for reducing side lobes in antenna patterns
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United States of America Patent
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Oct 12, 1993
Grant Date -
N/A
app pub date -
Aug 24, 1992
filing date -
Sep 11, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for reducing side lobes wherein an antenna system comprises a main antenna and a sub antenna which does not have an isotropic antenna pattern in a direction (X direction) of an orientation of a side lobe of the main antenna to be reduced which is arranged in such a way that the sub antenna adjoins the main antenna in the direction (Y direction) perpendicular to the X direction and the beam axis of the sub antenna coincides with the beam axis of the main antenna; wherein an antenna beam of the antenna system is scanned in the X direction and a signal received with the main antenna is multiplied by a signal received with the sub antenna on the condition that phases of both signals coincide with each other.
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