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RADIO SIGNAL PICKUP FROM AN ELECTRICALLY CONDUCTIVE SUBSTRATE UTILIZING PASSIVE SLITS

  • US 20150031287A1
  • Filed: 07/26/2013
  • Published: 01/29/2015
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a substrate of electrically conductive material including a plurality of separate apertures formed in the substrate,one or more of the plurality of separate apertures comprises an active antenna having length dimension that is substantially larger than a width dimension, an edge of the aperture along the length dimension is electrically coupled with a radio frequency (RF) receiver and an opposing edge of the aperture along the length dimension is electrically coupled with a ground potential,the length dimension is selected to detune the active antenna at a frequency that is lower than a target frequency to be detected by the RF receiver, the length dimension being longer than a wavelength of the target frequency divided by two, anda different one or more of the plurality of separate apertures comprises a passive slit that is not electrically coupled with the RF receiver or the ground potential.

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