Dr. Stephen E. Ralph


An associate professor in Georgia Tech's School of Electrical and Computer Engineering, Professor Stephen Ralph has rapidly established himself as a world-class scientist in the field of high-speed optical technology.
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Beyond the mobile communication and wireless LAN that we are enjoying today, the evolution of RFID/wireless sensor and personal area network are promising to bring the ubiquitous wireless network in our every day life. Under this concept, electronic devices, consumer products and users will share such information as product information, quantized physical parameters from sensors, or personal data via embedded wireless nodes. The concept of ubiquitous networks has been accepted as a driving force of the future communications systems, and RFID and wireless sensor products are actively being developed by the world's major companies.

GEDC is involved in relevant research activities with several of the industry leaders in the rapidly expanding area, including Georgia's Maritime Logistics Innovation Center.

GEDC's RFID/wireless sensor technology will accelerate the growth of these research relationships, catalyze the establishment of significant new activities with other industry leaders, and allow us to support local startup companies in their product development and testing.

RFID/wireless sensor technology at GEDC is composed of five parts:

  1. test facilities for wireless sensors and RFID in various rugged environments;
  2. functional demonstration of the ICs and integrated prototype modules of wireless sensor/RFIDs;
  3. investigation of paper-based materials for extremely low-cost RFID/sensor;
  4. implementation of miniaturized printed batteries and other compact energy-scavenging approaches;
  5. demonstration of the wireless sensor networks.


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