Artificial ionospheric mirror composed of a plasma layer which can be tilted
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United States of America Patent
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-
Aug 20, 1991
Grant Date -
N/A
app pub date -
May 17, 1990
filing date -
May 17, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to generation of a Artificial Ionospheric Mirror (AIM), or a plasma layer in the atmosphere. The AIM is used like the ionosphere to reflect RF energy over great distances. A tiltable AIM is created by a heater antenna controlled in phase and frequency. The heater antenna phase shift scans a beam to paint a plasma layer. Frequency is changed to refocus at continually higher altitudes to tilt the plasma layer.
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