MICROWAVE-ENERGY TRANSMISSION-SYSTEM FOR MICROROBOT

The majority of independent locomotion microrobots pack batteries as t heir energy source. However, because the energy that can be stored in a battery is proportional to its volume, the operating time becomes sh orter as the robot becomes smaller. To solve this problem the energy m ust be supplied from outside by wireless transmission. We propose a mi crowave energy transmission system for microrobots in metal piping. Be cause microwave is rectified and converted in the form of electric ene rgy in this system, we developed a receiving antenna for microrobots i n piping and a microwave rectifying circuit to generate high voltage. These were loaded on a microrobot, tested to drive a locomotive mechan ism, and the efficiency of the proposed system was confirmed.