Ultra-wideband directional sampler

Details Ultra-wideband directional sampler Ultra-wideband directional sampler

1995-08-03

1996-05-14

Eldred, J. Woodrow

Communications: directive radio wave systems and devices (e.g.,

Return signal controls radar system

Receiver

375200, G01S 1300

Patent

active

055171982

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.

REFERENCES:
patent: 5220683 (1993-06-01), Rudish
patent: 5345471 (1994-09-01), McEwan
patent: 5455593 (1995-10-01), Ross
patent: 5465094 (1995-11-01), McEwan

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