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  • 1
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    Unknown
    Electronic scanning of 2-channel monopulse patterns (1970)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Scanning method involves separation of scanning capability into two independent degrees of freedom. One degree of freedom corresponds to azimuthal scanning and other to elevation scanning on spiral coordinate axes. Scanning of both prime-feed and mirrored patterns is accomplished with reduction of mechanical vibration damage to large antennas.
    Keywords: ELECTRONIC SYSTEMS
    Type: GSC-10299
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Variable-beamwidth antenna without moving parts (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Basic configuration consists of large parabolic dish reflector, smaller hyperboloidal subreflector, and two sets of monopulse feeds located in conjugate focal region on boresight axis of dish.
    Keywords: ELECTRONIC SYSTEMS
    Type: GSC-11924
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Variable-beamwidth antennas (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Two effective designs have been developed for Cassegrain and Gregorian antenna configurations. Each provides for both high-gain and low-gain operations. Cassegrain system sacrifices some efficiency due to small amount of increased spillover loss. Gregorian system provides for independent spillover control with two feeds.
    Keywords: ELECTRONIC SYSTEMS
    Type: GSC-11760
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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