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LIQUID DIELECTRIC COOLED TERMINATIONS

  • US 3,783,414 A
  • Filed: 02/06/1973
  • Issued: 01/01/1974
  • Est. Priority Date: 02/06/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for absorbing energy from a signal transmitted along a transmission line having a characteristic impedance, said apparatus comprising:

  • a. short circuit means disposed across said transmission line;

    b. a film disposed across substantially the entire cross-section of said transmission line;

    c. means for forming a cooling chamber including a first section disposed between said film and said short circuit means and a second section in front of said film with respect to said short circuit means; and

    d. a cooling liquid disposed within said cooling chamber and having a given dielectric constant and low microwave loss;

    e. the distances along the length of said transmission line from said film to said short circuit means and from said film to the periphery of said cooling chamber being determined to be N lambda g/4, where N is any odd integral number and lambda g is the wavelength of a signal transmitted in said cooling liquid;

    f. said cooling liquid in said second section of said cooling chamber transforming the impedance seen by the transmitted signal along said transmission line, said film having an impedance substantially equal to the reduced impedance of said transmission line as transformed by said cooling liquid.

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