أعضاء هيئة التدريس - جامعة بنها
Improvement of Magnetic Field for Near-Field WPT System Using Two Concentric Open-Loop Spiral Resonators
IEEE Microwave and Wireless Components Letters • 2020
معلومات البحث
المؤلفون
Mohamed Aboualalaa , Islam Mansour, Adel Barakat ,
Kuniaki Yoshitomi, and Ramesh K. Pokharel
الكلمات المفتاحية
Capacitive coupling feeding, charging distance,
near-field wireless power transfer (WPT), open-loop spiral resonator
(OLSR), power transfer efficiency (PTE).
المجلة العلمية
IEEE Microwave and Wireless Components Letters
الناشر
IEEE
المجلد
Not Available
العدد
Not Available
الصفحات
1-4
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
This letter introduces two concentric open-loop
spiral resonators (OLSRs) that are used to improve magnetic
field for nonradiative wireless power transfer (WPT) systems.
OLSRs are fed through metal–insulator–metal (MIM) capacitive
coupling using a 50- microstrip transmission line. First, a single
OLSR is designed and implemented for WPT, then two OLSRs
are used instead of a single OLSR to emphasize the surface
current on the spiral resonators. Therefore, it helps to intensify
the electromagnetic field in order to get a high transmission
distance or higher efficiency. The proposed WPT system operates
at 438.5 MHz with a measured power transfer efficiency (PTE)
of 70.8% at a transmission distance of 31 mm and a design area
of 576 mm2. An equivalent circuit of the proposed WPT system is
presented as a heuristic approach to show the electrical behavior
of the WPT system.
spiral resonators (OLSRs) that are used to improve magnetic
field for nonradiative wireless power transfer (WPT) systems.
OLSRs are fed through metal–insulator–metal (MIM) capacitive
coupling using a 50- microstrip transmission line. First, a single
OLSR is designed and implemented for WPT, then two OLSRs
are used instead of a single OLSR to emphasize the surface
current on the spiral resonators. Therefore, it helps to intensify
the electromagnetic field in order to get a high transmission
distance or higher efficiency. The proposed WPT system operates
at 438.5 MHz with a measured power transfer efficiency (PTE)
of 70.8% at a transmission distance of 31 mm and a design area
of 576 mm2. An equivalent circuit of the proposed WPT system is
presented as a heuristic approach to show the electrical behavior
of the WPT system.