Mohammad Alhassoun; Michael A. Varner; Gregory D. Durgin
2018 IEEE International Conference on RFID, Orlando, FL, April 2018
This paper is Mohammad Alhassoun’s award-winning idea for an RFID tag exhibits retrodirectivity. Unlike previous designs, this scheme can be implemented by a single chip that alternately load-modulates two inner ports of a rat-race hybrid. Previous retrodirective designs have all required switches and electronics at multiple locations to reconfigure the structure, which greatly increases the cost of production.