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Multi-phase transmitter with single receive antenna for transponder interrogator

  • US 5,923,300 A
  • Filed: 04/03/1997
  • Issued: 07/13/1999
  • Est. Priority Date: 04/03/1997
  • Status: Expired due to Term
First Claim
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1. An antenna, comprising:

  • a transmitter, said transmitter including a first transmit coil wound in a first direction, a second transmit coil, electrically coupled to said first coil, and wound in a second direction opposite to the first direction, and a receive coil disposed between said first transmit coil and said second transmit coil.

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