Communications: radio wave antennas – Antennas – Buried underground or submerged under water
Patent
1992-06-11
1994-07-19
Hajec, Donald
Communications: radio wave antennas
Antennas
Buried underground or submerged under water
343867, 324333, H01Q 104
Patent
active
053313313
ABSTRACT:
An electromagnetic propagation tool using magnetic dipole antennas comprising small current loops having characteristics of a point dipole is presented. The electromagnetic tool comprises a drill collar segment having at least one dipole antenna for each transmitter and receiver antenna. The dipole antennas are disposed within pockets formed in the drill collar segment.
REFERENCES:
patent: 4670717 (1987-06-01), Sender
patent: 4704581 (1987-11-01), Clark
patent: 5001675 (1991-03-01), Woodward
Baker Hughes Incorporated
Hajec Donald
Le Hoang-anh
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