Antenna positioner system

A three-axis antenna positioner has an X-Y over azimuth configuration, and includes an azimuth drive assembly, an X-axis drive assembly, and a Y-axis drive assembly. Each drive assembly is independently operable. The azimuth drive assembly imparts 540° azimuthal rotational motion to an antenna about...

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Main Authors THEODORE YOUNG, STEPHEN W. WHITE, RICHARD T. VAN PELT, CARY C. BEDFORD, JOSEPH H. FAHLE, KEVIN B. DAVIS, JEFFREY S. HERTIG, JOHN L. SCHAUMANN, EARL K. JONES
Format Patent
LanguageEnglish
Published 11.05.2006
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Abstract A three-axis antenna positioner has an X-Y over azimuth configuration, and includes an azimuth drive assembly, an X-axis drive assembly, and a Y-axis drive assembly. Each drive assembly is independently operable. The azimuth drive assembly imparts 540° azimuthal rotational motion to an antenna about an azimuth axis. The X-axis drive assembly rotates the antenna about a horizontal X-axis at elevation angles between −90° and +90°. The Y-axis drive assembly rotates the antenna about a Y-axis at elevation complement angles between −2° and +105°. The azimuth axis, the X-axis, and the Y-axis all intersect at a common intersection point, and are mutually orthogonal. A controller operates each drive assembly so as to minimize antenna tracking velocity and acceleration. Each drive assembly may include dual drives, and may be operated in a bias drive mode to substantially eliminate backlash.
AbstractList A three-axis antenna positioner has an X-Y over azimuth configuration, and includes an azimuth drive assembly, an X-axis drive assembly, and a Y-axis drive assembly. Each drive assembly is independently operable. The azimuth drive assembly imparts 540° azimuthal rotational motion to an antenna about an azimuth axis. The X-axis drive assembly rotates the antenna about a horizontal X-axis at elevation angles between −90° and +90°. The Y-axis drive assembly rotates the antenna about a Y-axis at elevation complement angles between −2° and +105°. The azimuth axis, the X-axis, and the Y-axis all intersect at a common intersection point, and are mutually orthogonal. A controller operates each drive assembly so as to minimize antenna tracking velocity and acceleration. Each drive assembly may include dual drives, and may be operated in a bias drive mode to substantially eliminate backlash.
Author JOHN L. SCHAUMANN
JOSEPH H. FAHLE
CARY C. BEDFORD
STEPHEN W. WHITE
RICHARD T. VAN PELT
EARL K. JONES
JEFFREY S. HERTIG
KEVIN B. DAVIS
THEODORE YOUNG
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– fullname: CARY C. BEDFORD
– fullname: JOSEPH H. FAHLE
– fullname: KEVIN B. DAVIS
– fullname: JEFFREY S. HERTIG
– fullname: JOHN L. SCHAUMANN
– fullname: EARL K. JONES
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Snippet A three-axis antenna positioner has an X-Y over azimuth configuration, and includes an azimuth drive assembly, an X-axis drive assembly, and a Y-axis drive...
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SubjectTerms ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
Title Antenna positioner system
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