Shunt transmission line for use in leaky coaxial cable system
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United States of America Patent
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Aug 12, 1986
Grant Date -
N/A
app pub date -
Feb 28, 1984
filing date -
Jun 16, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A leaky coaxial cable for use as a sensor in a buried or other medium, which has a conductor located parallel to, and in proximity with the shield along the cable, but insulated therefrom. Preferably the two wire transmission line formed by the external conductor and the shield is terminated with an impedance matching the characteristic impedance of the transmission line (for minimum reflections). The external conductor can be oriented to cause the field in a given direction (e.g. above the surface of the burial medium) to be compensated for field variations caused by variations in the burial medium.
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