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Compact integration of LC resonators

  • US 7,548,138 B2
  • Filed: 09/29/2005
  • Issued: 06/16/2009
  • Est. Priority Date: 09/29/2005
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a capacitor having a top plate and a bottom plate embedding a dielectric layer, the top and bottom plates being substantially parallel to each other;

    an inductor having a first end coupled to the capacitor at the bottom plate and having N turns surrounding the bottom plate and the dielectric layer in a spiral geometry, the inductor being co-planar to the bottom plate and ending at a second end, the inductor and the capacitor forming a series or parallel resonator;

    a first feed line coupled to the top plate; and

    a via connecting between the first feed line and the top plate to provide a connection point, the via being a drilled hole.

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