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Rectifier utilizing a grounded antenna

  • US 7,109,934 B2
  • Filed: 06/29/2004
  • Issued: 09/19/2006
  • Est. Priority Date: 03/13/2002
  • Status: Expired due to Fees
First Claim
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1. A rectifier for generating a rectified output and a direct current (dc) power output, the rectifier comprising:

  • an antenna element having first and second terminals, the second terminal connected to ground;

    a first rectifying diode having a cathode and an anode terminal, the anode terminal connected to ground and the rectified output generated at the cathode terminal;

    a coupling capacitor coupled between the first terminal of the antenna element and the cathode terminal of the first rectifying diode;

    a second rectifying diode having a cathode and an anode terminal, the anode terminal coupled to the cathode terminal of the first rectifying diode and the dc current output generated at the cathode terminal; and

    wherein the first rectifying diode and second rectifying diode are embodied on an integrated circuit having a bonding pad and a chip ground, wherein ground includes the chip ground, and wherein the chip ground includes a back surface of the integrated circuit.

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