TY - JOUR
T1 - Strong coupling optimization with planar spiral resonators
AU - Klein, Avraham
AU - Katz, Nadav
N1 - Funding Information:
We acknowledge the support of ISF grant no. 1248/10.
PY - 2011/9
Y1 - 2011/9
N2 - Planar spirals offer a highly scalable geometry appropriate for wireless power transfer via strongly coupled inductive resonators. We numerically derive a set of geometric scale and material independent coupling terms, and analyze a simple model to identify design considerations for a variety of different materials. We use our model to fabricate integrated planar resonators of handheld sizes, and optimize them to achieve high-Q factors, comparable to much larger systems, and strong coupling over significant distances with approximately constant efficiency.
AB - Planar spirals offer a highly scalable geometry appropriate for wireless power transfer via strongly coupled inductive resonators. We numerically derive a set of geometric scale and material independent coupling terms, and analyze a simple model to identify design considerations for a variety of different materials. We use our model to fabricate integrated planar resonators of handheld sizes, and optimize them to achieve high-Q factors, comparable to much larger systems, and strong coupling over significant distances with approximately constant efficiency.
KW - Electromagnetic devices
KW - Resonant coupling
KW - Wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=79959775644&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2011.02.017
DO - 10.1016/j.cap.2011.02.017
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AN - SCOPUS:79959775644
SN - 1567-1739
VL - 11
SP - 1188
EP - 1191
JO - Current Applied Physics
JF - Current Applied Physics
IS - 5
ER -