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Coils for high frequency MRI

  • US 6,980,000 B2
  • Filed: 04/29/2003
  • Issued: 12/27/2005
  • Est. Priority Date: 04/29/2003
  • Status: Expired due to Fees
First Claim
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1. A multiply tuned coil for NMR investigations comprising:

  • a 4 terminal transmission line, said transmission line comprising at least two electrical conductors in spaced relationship and a dielectric disposed therebetween, a first active terminal of said 4 terminal transmission line being direct coupled through one said conductor to a common active terminal to comprise a first RF path, a second pair of terminals of said 4 terminal transmission line comprising a third active terminal directly coupled to a floating terminal, said third active terminal being capacitively coupled between said electrical conductors to form a second RF path,a first resonant circuit comprising said first RF path,a second resonant circuit comprising said second RF path, anda frequency isolating network disposed in at least one said resonant circuit.

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