Research Article Open Access

Experimental Antenna and Circuit Model for Charging an Electronic Device from the Ambient Electromagnetic Waves

Pankaj Chandra Kar1, Md. Ariful Islam2, Amit Paul3, Joydip Chakrabarti1, Subrata Sutradhar4 and Fardin Teen Rahman5
  • 1 Department of Information and Communication Technology, Comilla University, Bangladesh
  • 2 Department of Robotics and Mechatronics, University of Dhaka, Bangladesh
  • 3 Department of Physics, Comilla University, Bangladesh
  • 4 Department of Mathematics, Comilla Victoria Government College, Bangladesh
  • 5 Department of Mechanical Engineering, Queen Mary University of London, United Kingdom


Electronic device use is on the rise as more and more tasks in everyday life are conducted online. As a consequence, charging is a unique aspect of any electronic device. However, the capacity of any electronic device's battery is fixed. On the other hand, charging the unit at any time and in any place is incredibly difficult. As a result, people are having a difficult time charging their electronic devices. The goal of this project is to develop a theoretical antenna model and a circuit diagram to solve this problem. To absorb EM waves from the environment and to inclusively to charge the battery, an extra helical antenna is used. The antenna would immediately come out if the residual charge of that device is less than 20%. As Electromagnetic (EM) waves pass into the antenna's receiving circuit, a continuous magnetic field causes a small amount of voltage. This induced voltage is not enough for charging a device. This induced voltage is multiplied four times in this amplified circuit and then connected to the battery of that device. This suggested approach would minimize charging crisis by 90%. This is one of the most efficient ways to use of renewable energy.

American Journal of Engineering and Applied Sciences
Volume 15 No. 1, 2022, 9-22


Submitted On: 6 April 2021 Published On: 18 January 2022

How to Cite: Kar, P. C., Islam, M. A., Paul, A., Chakrabarti, J., Sutradhar, S. & Rahman, F. T. (2022). Experimental Antenna and Circuit Model for Charging an Electronic Device from the Ambient Electromagnetic Waves. American Journal of Engineering and Applied Sciences, 15(1), 9-22.

  • 26 Citations



  • Helical Antenna
  • Induced Voltage
  • Voltage Amplifier
  • Voltage Standing Wave Ratio (VSWR)
  • Return Loss
  • Input Impedance