Dipole antennas for wired-pipe systems
First Claim
1. A system for downhole wired-pipe communication and/or power transmission using signal and/or power couplers, comprising:
- a first coupler comprising a first dielectric substrate, a first electric dipole arranged on said first dielectric substrate, first dielectric encapsulation surrounding said first dielectric substrate and said first electric dipole, and a first electric shield surrounding said first dielectric encapsulation; and
a second coupler comprising a second dielectric substrate, a second electric dipole arranged on said second dielectric substrate, second dielectric encapsulation surrounding said second dielectric substrate and said second electric dipole, and a second electric shield surrounding said second dielectric encapsulation,wherein said first electric dipole and said second electric dipole are adapted to exchange radiofrequency signals and/or electrical power at radiofrequencies with each other by means of near-field dipole-dipole interaction.
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Accused Products
Abstract
A system and method is provided for downhole wired-pipe communication and/or power transmission. The system includes first and second couplers each comprising a dielectric substrate, an electric dipole arranged on the dielectric substrate, a dielectric encapsulation surrounding the dielectric substrate and the electric dipole, and an electric shield surrounding the dielectric encapsulation. In operation, the electric dipoles are adapted to exchange radiofrequency signals and/or electrical power at radiofrequencies with each other by means of near-field dipole-dipole interaction. The one or more electric dipoles may be of the quarter-wavelength dipole type or of the half-wavelength dipole type. In a first embodiment, the dielectric substrate may form a generally circular ring and the coupler may be adapted to be rotatably movable against another coupler. In another embodiment, the dielectric substrate may form a generally linear structure and the coupler may be adapted to be linearly movable against another coupler.
122 Citations
39 Claims
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1. A system for downhole wired-pipe communication and/or power transmission using signal and/or power couplers, comprising:
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a first coupler comprising a first dielectric substrate, a first electric dipole arranged on said first dielectric substrate, first dielectric encapsulation surrounding said first dielectric substrate and said first electric dipole, and a first electric shield surrounding said first dielectric encapsulation; and a second coupler comprising a second dielectric substrate, a second electric dipole arranged on said second dielectric substrate, second dielectric encapsulation surrounding said second dielectric substrate and said second electric dipole, and a second electric shield surrounding said second dielectric encapsulation, wherein said first electric dipole and said second electric dipole are adapted to exchange radiofrequency signals and/or electrical power at radiofrequencies with each other by means of near-field dipole-dipole interaction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for downhole wired-pipe communication and/or power transmission using signal and/or power couplers, comprising:
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arranging a first coupler comprising a first dielectric substrate, a first electric dipole arranged on said first dielectric substrate, first dielectric encapsulation surrounding said first dielectric substrate and said first electric dipole, and a first electric shield surrounding said first dielectric encapsulation with respect to a second coupler comprising a second dielectric substrate, a second electric dipole arranged on said second dielectric substrate, second dielectric encapsulation surrounding said second dielectric substrate and said second electric dipole, and a second electric shield surrounding said second dielectric encapsulation whereby said first and second couplers are separated by a gap; and exchanging radiofrequency signals and/or electrical power at radiofrequencies between said first electric dipole and said second electric dipole by means of near-field dipole-dipole interaction. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification