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This paper illustrates the concept of passive tongue touch and tongue proximity wireless sensors. The sensors use the principle of changing the capacitive loading of the tag feed network by moving the tongue closer to the sensor. The application of these devices could be as control actuators for people with severe physical disability.
RFID tag designs with future applications for passive wireless tongue controlled switching are presented. Switching discrimination in read range is observed with the tongue touching and separated from a tag mounted on the hard palate of the mouth. Further a degree of proximity sensing is observed when the tongue is different distances from the tag.
This paper illustrates the idea of passive strain gauge wireless sensors. The sensors use the principle of detuning slots as a surrounding patch is stretched. The application of these devices could be as control actuators for disabled people.
Thickness of structures plays a big role on body-worn antenna systems in terms of conformity. On EBG structure design where it is placed onto body, using a high permittivity substrate such as TiO2 brings an opportunity to decrease the thickness of the structure.
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