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Flexible circuit for downhole antenna

  • US 7,916,092 B2
  • Filed: 08/02/2006
  • Issued: 03/29/2011
  • Est. Priority Date: 08/02/2006
  • Status: Active Grant
First Claim
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1. An antenna for an electromagnetic tool used in a wellbore, the tool having a core with a longitudinal axis, the antenna comprising:

  • a flexible dielectric substrate conformed about the core; and

    a set of electrical conductor segments disposed on the substrate, the electrical conductor segments having first ends and second ends such that the first ends are electrically joined to the second ends to form a multiturn coil, whereby one of the first ends is electrically connected to a first lead, and one of the second ends is electrically connected to a second lead,wherein the electrical conductor segments are disposed in multiple layers to form a multilayered, multiturn coil.

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