Ultra-wideband directional sampler

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870420

McEwan, Thomas E ^[1]

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1. Livermore, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5517198
• OSTI ID: 870420
• Country of Publication: United States
• Language: English

Related Subjects

ultra-wideband
directional
sampler
uwb
device
combines
function
coupler
speed
ports
operate
sub-nanosecond
time
slow
millisecond-speed
equivalent
signal
flowing
inbound
sampled
coupled
adjacent
isolated
opposite
primary
application
domain
reflectometry
tdr
situation
reflected
pulse
returns
outbound
transmitted
reflecting
discontinuity
close
apparatus
speed sampler
directional coupler
domain reflectometry
equivalent time
time domain
reflected pulse
directional sampler
speed sample
/342/73/375/