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Probing apparatus with impedance optimized interface

  • US 7,888,957 B2
  • Filed: 10/06/2008
  • Issued: 02/15/2011
  • Est. Priority Date: 10/06/2008
  • Status: Active Grant
First Claim
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1. A probing apparatus comprising:

  • (a) an interface board; and

    (b) an interface board waveguide comprising a plurality of elongate conductive traces supported by said interface board including;

    (i) a center trace having a first edge and a second edge defining a center trace width;

    (ii) a first side trace spaced apart from said first edge of said center trace and having a first side trace width;

    (iii) a second side trace spaced apart from said second edge of said center trace and having a second side trace width, said second side trace width differing from said center trace width; and

    (c) a coaxial cable comprising;

    (i) a center conductor arranged to conduct a first signal and conductively connected to said center trace of said interface board waveguide; and

    (ii) a coaxial outer conductor conductively connecting said first side trace and said second side trace of said interface board waveguide to an electrical potential.

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