Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-06-07
1997-02-25
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
138122, 156175, 343895, H01P 1100
Patent
active
056049722
ABSTRACT:
A mobile vehicular antenna for use in accessing stationary geosynchronous and/or geostable satellites. A multi-turn quadrifilar helix antenna is fed in phase rotation at its base and is provided with a pitch and/or diameter adjustment for the helix elements, causing beam scanning in the elevation plane while remaining relatively omni-directional in azimuth. The antenna diameter and helical pitch are optimized to reduce the frequency scanning effect. A technique is provided for aiming the antenna to compensate for any remaining frequency scanning effect.
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AMSC Subsidiary Corporation
Arbes Carl J.
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