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Title: Downhole pulse radar

Patent ·
OSTI ID:5903568

A borehole logging tool generates a fast rise-time, short duration, high peak-power radar pulse having broad energy distribution between 30 MHz and 300 MHz through a directional transmitting and receiving antennas having barium titanate in the electromagnetically active region to reduce the wavelength to within an order of magnitude of the diameter of the antenna. Radar returns from geological discontinuities are samples for transmission uphole.

Assignee:
Dept. of Energy, Washington, DC
Patent Number(s):
US 4814768
OSTI ID:
5903568
Resource Relation:
Patent File Date: Filed date 28 Sep 1987
Country of Publication:
United States
Language:
English