Affiliations: [a] Department of Electrical and Electronics Engineering,
Siksha 'O' Anusandhan University, Bhubaneswar, India | [b] Department of Electrical {and} Computer Engineering,
National University of Singapore, Singapore | [c] Nanjing University of Aeronautics and Astronautics,
Nanjing, Jiangsu, China
Correspondence:
[*]
Corresponding author: Satyanarayan Bhuyan, Department of
Electrical and Electronics Engineering, ITER, Siksha 'O' Anusandhan University,
Bhubaneswar 751030, India Tel.: +91 674 235 0181; Fax: +91 674 235 0642;
E-mail: [email protected]
Abstract: Wireless drive of piezoelectric component by electric field has been
proposed and experimentally investigated. The electric field is generated by a
spiral coil antenna-like electric field generator. Wireless electric energy
transmission to the piezoelectric component can be enhanced when the spiral
coil antenna is in electric resonance with a capacitor. It has been found that
the output power achieved wirelessly by the piezoelectric component depends on
the operating frequency, electrical load, distance and electric field. At
resonant frequency of 772 kHz and optimum electrical load resistance of 350
Ω, a maximum power of 0.362 mW has been received wirelessly by the
piezoelectric plate operating in the thickness vibration mode, placed 4 mm away
from antenna plane with input source power of 1.294 W. The excitation of the
piezoelectric component is done remotely, so as the component does not require
any wiring to the source and can be used in various sensors and actuators
applications.
Keywords: Electric field, resonance, piezoelectricity, spiral antenna, wireless energy transmission
