Ultra-wideband directional sampler
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United States of America Patent
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-
May 14, 1996
Grant Date -
N/A
app pub date -
Aug 3, 1995
filing date -
Apr 12, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The Ultra-Wideband (UWB) Directional Sampler is a four port device that combines the function of a directional coupler with a high speed sampler. Two of the four ports operate at a high sub-nanosecond speed, in 'real time', and the other two ports operate at a slow millisecond-speed, in 'equivalent time'. A signal flowing inbound to either of the high speed ports is sampled and coupled, in equivalent time, to the adjacent equivalent time port while being isolated from the opposite equivalent time port. A primary application is for a time domain reflectometry (TDR) situation where the reflected pulse returns while the outbound pulse is still being transmitted, such as when the reflecting discontinuity is very close to the TDR apparatus.
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