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RADIO FREQUENCY IC DEVICE AND ELECTRONIC APPARATUS

  • US 20110074584A1
  • Filed: 12/03/2010
  • Published: 03/31/2011
  • Est. Priority Date: 07/18/2007
  • Status: Active Grant
First Claim
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1. A radio frequency IC device comprising:

  • a radio frequency IC chip arranged to process a transmitted/received signal; and

    a circuit board including a ground electrode;

    whereinthe ground electrode includes a cutout portion which is cut from an edge of the ground electrode, the cutout portion defines a loop electrode in the ground electrode, and the loop electrode provides an impedance matching function; and

    the radio frequency IC chip is arranged on the circuit board so as to extend across the cutout portion.

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