Compact Wireless Power Transfer System Using Defected Ground Bandstop Filters

Sherif Hekal, Adel B. Abdel-Rahman, Hongting Jia, Ahmed Allam, Adel Barakat, Takano Kaho, Ramesh K. Pokharel

研究成果: ジャーナルへの寄稿学術誌査読

26 被引用数 (Scopus)


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 × 40mm2). 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.

ジャーナルIEEE Microwave and Wireless Components Letters
出版ステータス出版済み - 10月 2016

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 電子工学および電気工学


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