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Minimizing Electromagnetic Interference in Coil Transducers

  • US 20090243783A1
  • Filed: 02/26/2009
  • Published: 10/01/2009
  • Est. Priority Date: 08/28/2006
  • Status: Active Grant
First Claim
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1. A coil transducer system, comprising:

  • a coil transducer comprising a generally planar substrate comprising opposing upper and lower surfaces and including therein a dielectric barrier, the dielectric barrier comprising an electrically insulating, non-metallic, non-semiconductor, low-dielectric-loss material, a first electrically conductive coil disposed above the upper surface of the substrate, the first coil extending between first and second coil input terminals disposed at opposite ends thereof, a second electrically conductive coil disposed below the lower surface of the substrate, the second coil extending between first and second output coil terminals disposed at opposite ends thereof, anda transmitter circuit comprising first and second transmitter output terminals;

    wherein a first wire is electrically connected to, and extends between, the first transmitter output terminal and the first input coil terminal, a second wire is electrically connected to, and extends between, the second transmitter output terminal and the second input coil terminal, the first and second wires are substantially parallel to one another or exhibit substantially similar angles respecting a major axis of the coil transducer, the first and second wires have substantially a same first length, the first and second wires thereby being configured to minimize the pick-up of electromagnetic interference (“

    EMI”

    ) thereby.

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