Wave transmission lines and networks – Long lines – Leaky lines
Patent
1984-02-28
1986-08-12
Gensler, Paul
Wave transmission lines and networks
Long lines
Leaky lines
340552, 343719, H01P 306, H01Q 104
Patent
active
046059148
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.
REFERENCES:
patent: 4115781 (1978-09-01), Gershberg et al.
patent: 4129841 (1978-12-01), Hildebrand et al.
Gensler Paul
Senstar Security Systems Corp.
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