Efficient Power Splitting and Conversion in Ferrite/Piezoelectric Transformer Magnetoelectric Composites

Arbitrary low-frequency power-splitting strategy in ferrite/piezoelectric magnetoelectric heterostructures: theory and experimental validation

“…Finally, velocity spectrum of each port in ME samples were measured by an optical Doppler non-contact method to further verify the variation consistency with MEVC from the simulation predictions. Velocity tracks the MEVC response well since the dynamic piezomagnetic coefficient is directly proportional to MEVC, and solid evidence was provided to quantitatively demonstrate the variation consistency between velocity and MEVC of ferrite/piezoelectric transformer tri-layered ME splitters with power-splitting ratio approximately 1:1 in our previously reported literature [51]. In view of this, designated sample of S3 with PZTsegmented ratio of 3:2 was selected to verify our conjecture.…”

“…Subsequently, investigations of theoretical modeling, configuration versatility and performance improvement have been our relatively recent endeavors. Motivated by the independent excitations for LF/VLF mechanical antennas, a ME power-splitting device consisting of NZFO/PT/NZFO tri-layered composite was modeled, fabricated, capsulated and systemically tested, and an optical non-contact measurement was carried out to track the energy flows between interlayers for the purpose of efficiency improvement [51]. With deepening of the investigations in this topic, we aware that the exploration of a ME power splitter with arbitrary power-splitting ratio to accommodate the practical deployment requirement in different dimensions and positions for the distributed MA excitations, but present solution employed several amplifiers to accomplish this goal with unsatisfied flexibility for system integration [52,53].…”