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An ultra-low-power active RFID tag chip with multiple power and clock domains has been designed and verified. The chip employs a wake-up scheme to reduce its power consumption. It includes a wake-up analog regulator and oscillator as well as a digital power manager, synchronizer, and protocol processor. Thus, the authors need to verify a complicated wake-up procedure and analog-digital-mixed-signal system for its correct operations. Matlab Simulink models and simulations are explored for system-level verification, and verification time can be suppressed efficiently.
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