Design High Q Power Harvesting Circuit Using ADS

The Internet of Things (IoT) fulfills a promise of a more efficient and connected world. But with dozens of devices per household, battery management must become wireless and autonomous. This problem is now being solved through power harvesting, which enables a circuit to power itself from energy in the environment.

Challenge:

  • Design a circuit to harvest enough power for IoT devices of the future and verify simulation results before committing to fabrication

Solution:

  • Explored the design space for optimum configuration using Keysight ADS Software
  • Transformed the voltage to overcome the Schottky diode junction voltage using a high Q quartz crystal resonator

Results:

  • Doubled the usable power
  • Improved conversion efficiency from < 10 to 22.6%
  • Verified a close match between simulation and measurement data

Click here power-harvesting-circuit for the case study and click here to read the complete article: “RF Energy Harvesting Design Using High Q Resonators

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