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Microwave energy delivery system including high performance dual directional coupler for precisely measuring forward and reverse microwave power during thermal therapy

  • US 6,067,475 A
  • Filed: 11/05/1998
  • Issued: 05/23/2000
  • Est. Priority Date: 11/05/1998
  • Status: Expired due to Term
First Claim
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1. A microwave energy delivery system for microwave thermal therapy, comprising:

  • an antenna;

    a transmission line connected to the antenna; and

    a microwave generating source including a generator connected to the transmission line and a dual directional coupler for measuring forward power delivered to the antenna and reverse power reflected from the antenna with an uncertainty of no more than 1%.

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