TY  - BOOK
AU  - Hekal ,Sherif
AU  - Allam ,Ahmed
AU  - Abdel - Rahman , Adel B. 
AU  - Pokharel , Ramesh K. 
TI  - Compact Size Wireless Power Transfer Using Defected Ground Structures / 
T2  - Energy Systems In Electrical Engineering 
SN  - 9789811380464
AV  - TK5103.25 .H1144 2019
PY  - 2019///
CY  - Singapore
PB  - Springer Nature Singapore Pte Ltd. , 
KW  - Wireless power transfer
N2  - This letter presents a new design for wireless power transfer (WPT) applications using two coupled bandstop filters (BSF). The stopband is created by etching a defected structure on the ground plane, and the power is transferred through electromagnetic (EM) resonant coupling when the two BSFs are coupled back to back. An equivalent circuit model of the proposed WPT system is extracted. Verification of the proposed design is performed through a good agreement between the EM simulation, circuit simulation, and measurement results. The proposed system achieves a measured WPT efficiency of 68.5% at a transmission distance of 50 mm using a compact size (40 × 40mm 2 ). This results in a figure of merit of the proposed system to be 0.856 and the ratio of transmission distance/lateral size is 1.25 that is the highest among the WPT systems proposed so far using planar structures
ER  -