Evanescent coupling antenna and method for use therewith
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United States of America Patent
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Sep 29, 1998
Issued Date -
N/A
app pub date -
Jul 30, 1996
filing date -
Feb 1, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A scanning antenna is disclosed including: a rotatable cylinder having an outer surface; a continuously, or steppingly, varying period conductive grating pattern of separated strips on the outer surface, the varying conductive grating pattern of separated strips defining a grating axis; and a first elongated dielectric waveguide defining a first waveguide axis, the first elongated dielectric waveguide being located proximally adjacent and alongside the varying conductive grating pattern of separated strips so as to evanescently couple electromagnetic signals with the first elongated dielectric waveguide. The scanning antenna provides advantages in that the gain is high.
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