Active array lens antenna using CTS space feed for reduced antenna depth
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United States of America Patent
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Jul 16, 2002
Grant Date -
N/A
app pub date -
Apr 17, 2001
filing date -
Apr 17, 2001
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A space-fed active array lens antenna system has an active array lens with a first array of radiating elements defining a front antenna aperture which transmits and receives RF energy from free space, a second array of radiating elements defining a rear antenna aperture which transmits and receives RF energy from a feed aperture, and an array of transmit/receive (T/R) modules sandwiched between the front aperture and rear aperture. The T/R modules include a phase control circuit and an amplitude control circuit which provide phase and amplitude control for RF signals passing through the modules. The feed aperture includes a wide band CTS aperture which produces a plane wave in the near field.
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