×

SAR REDUCTION IN RADIO TRANSMITTING DEVICES

  • US 20150288074A1
  • Filed: 10/23/2013
  • Published: 10/08/2015
  • Est. Priority Date: 10/24/2012
  • Status: Abandoned Application
First Claim
Patent Images

1. A radio transmitting device comprising a housing and an internal driven antenna, wherein the internal driven antenna, when fed with a predetermined radio signal, generates a radio frequency (RF) electromagnetic field having a Specific Absorption Rate (SAR) peak near the antenna when the device is in a typical usage condition in proximity of some part of a user'"'"'s body, and further comprising a SAR reduction component in the form of an internal parasitic antenna within the housing that is positioned at or close to the SAR peak, wherein the parasitic antenna is tuned to generate an RF electromagnetic field having an amplitude and phase relationship with the RF electromagnetic field generated by the driven antenna resulting in a reduction in the SAR peak.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×