The Experts below are selected from a list of 4284 Experts worldwide ranked by ideXlab platform
Tohru Asami - One of the best experts on this subject based on the ideXlab platform.
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cancellation mechanism of Electromagnetic Leakage for wireless power transmission system based on magnetic resonant coupling
2014Co-Authors: Yoshiaki Narusue, Yoshihiro Kawahara, Tohru AsamiAbstract:Wireless power transmission using magnetic resonant coupling has attracted considerable attention as a key technology to realize high efficiency in mid-range transmission. Suppressing unwanted Electromagnetic radiation is an important criterion in terms of Electromagnetic compatibility. This paper proposes a new resonator design to suppress Electromagnetic Leakage based on a loop-antenna analysis. Although the power efficiency of our proposed resonator is lower than that of conventional loop coils, Electromagnetic Leakage is reduced dramatically. The power efficiency is more than 80% when the vertical and horizontal air gaps are less than 20 and 10 mm, respectively, for a 50-mm resonator radius.
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power harvesting from microwave oven Electromagnetic Leakage
2013Co-Authors: Yoshihiro Kawahara, Xiaoying Bian, Ryo Shigeta, Rushi Vyas, Manos M Tentzeris, Tohru AsamiAbstract:In this paper, we considered the possibility of using electricity harvested from the microwave field leaked from commercial microwave ovens. Our experimental results showed that the Leakage received by a dipole antenna was about 0 dBm (1 mW) at a point 5 cm in front of the door. A rectenna consisting of a dipole antenna and charge pump can convert the leaked microwave energy into a DC current. When a microwave oven is operated for 2 min, 9.98 mJ of energy was harvested. We demonstrated that this energy is sufficient for powering a digital cooking timer to count down for 3 min and beep for 2.5 s. The operation of other kitchen devices was also demonstrated.
Yoshihiro Kawahara - One of the best experts on this subject based on the ideXlab platform.
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cancellation mechanism of Electromagnetic Leakage for wireless power transmission system based on magnetic resonant coupling
2014Co-Authors: Yoshiaki Narusue, Yoshihiro Kawahara, Tohru AsamiAbstract:Wireless power transmission using magnetic resonant coupling has attracted considerable attention as a key technology to realize high efficiency in mid-range transmission. Suppressing unwanted Electromagnetic radiation is an important criterion in terms of Electromagnetic compatibility. This paper proposes a new resonator design to suppress Electromagnetic Leakage based on a loop-antenna analysis. Although the power efficiency of our proposed resonator is lower than that of conventional loop coils, Electromagnetic Leakage is reduced dramatically. The power efficiency is more than 80% when the vertical and horizontal air gaps are less than 20 and 10 mm, respectively, for a 50-mm resonator radius.
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power harvesting from microwave oven Electromagnetic Leakage
2013Co-Authors: Yoshihiro Kawahara, Xiaoying Bian, Ryo Shigeta, Rushi Vyas, Manos M Tentzeris, Tohru AsamiAbstract:In this paper, we considered the possibility of using electricity harvested from the microwave field leaked from commercial microwave ovens. Our experimental results showed that the Leakage received by a dipole antenna was about 0 dBm (1 mW) at a point 5 cm in front of the door. A rectenna consisting of a dipole antenna and charge pump can convert the leaked microwave energy into a DC current. When a microwave oven is operated for 2 min, 9.98 mJ of energy was harvested. We demonstrated that this energy is sufficient for powering a digital cooking timer to count down for 3 min and beep for 2.5 s. The operation of other kitchen devices was also demonstrated.
Manos M Tentzeris - One of the best experts on this subject based on the ideXlab platform.
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power harvesting from microwave oven Electromagnetic Leakage
2013Co-Authors: Yoshihiro Kawahara, Xiaoying Bian, Ryo Shigeta, Rushi Vyas, Manos M Tentzeris, Tohru AsamiAbstract:In this paper, we considered the possibility of using electricity harvested from the microwave field leaked from commercial microwave ovens. Our experimental results showed that the Leakage received by a dipole antenna was about 0 dBm (1 mW) at a point 5 cm in front of the door. A rectenna consisting of a dipole antenna and charge pump can convert the leaked microwave energy into a DC current. When a microwave oven is operated for 2 min, 9.98 mJ of energy was harvested. We demonstrated that this energy is sufficient for powering a digital cooking timer to count down for 3 min and beep for 2.5 s. The operation of other kitchen devices was also demonstrated.
Rushi Vyas - One of the best experts on this subject based on the ideXlab platform.
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power harvesting from microwave oven Electromagnetic Leakage
2013Co-Authors: Yoshihiro Kawahara, Xiaoying Bian, Ryo Shigeta, Rushi Vyas, Manos M Tentzeris, Tohru AsamiAbstract:In this paper, we considered the possibility of using electricity harvested from the microwave field leaked from commercial microwave ovens. Our experimental results showed that the Leakage received by a dipole antenna was about 0 dBm (1 mW) at a point 5 cm in front of the door. A rectenna consisting of a dipole antenna and charge pump can convert the leaked microwave energy into a DC current. When a microwave oven is operated for 2 min, 9.98 mJ of energy was harvested. We demonstrated that this energy is sufficient for powering a digital cooking timer to count down for 3 min and beep for 2.5 s. The operation of other kitchen devices was also demonstrated.
Ryo Shigeta - One of the best experts on this subject based on the ideXlab platform.
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power harvesting from microwave oven Electromagnetic Leakage
2013Co-Authors: Yoshihiro Kawahara, Xiaoying Bian, Ryo Shigeta, Rushi Vyas, Manos M Tentzeris, Tohru AsamiAbstract:In this paper, we considered the possibility of using electricity harvested from the microwave field leaked from commercial microwave ovens. Our experimental results showed that the Leakage received by a dipole antenna was about 0 dBm (1 mW) at a point 5 cm in front of the door. A rectenna consisting of a dipole antenna and charge pump can convert the leaked microwave energy into a DC current. When a microwave oven is operated for 2 min, 9.98 mJ of energy was harvested. We demonstrated that this energy is sufficient for powering a digital cooking timer to count down for 3 min and beep for 2.5 s. The operation of other kitchen devices was also demonstrated.