TY - GEN
T1 - Compact High-Efficient CPS 2.45 GHz Multistage RF-DC Rectifier for Wireless Energy Harvesting
AU - Mansour, Mohamed M.
AU - Yamamoto, Shuya
AU - Torigoe, Shota
AU - Kanaya, Haruichi
N1 - Funding Information:
This work was partially supported by the Cabinet Office (CAO), Crossministerial Strategic Innovation Promotion Program (SIP), An intelligent knowledge processing infrastructure, integrating physical and virtual domains (funding agency: NEDO), SCOPE, and KAKENHI (18K04146) JSPS.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/12/8
Y1 - 2020/12/8
N2 - Wireless electromagnetic charging becomes an important useful module for the internet of things (IoT) devices. The majority of commercial applications utilize the wireless radiofrequency (RF) charging in 2.45 GHz band. This frequency band ensures the design compactness of either the antenna or the rectification unit. In this study, a compact RF-DC rectifier operating at 2.45 GHz is investigated. The proposed rectifier employs a coplanar strip line (CPS) configuration and a lumped LC component used for the impedance matching. The CPS architecture is selected so it provides a balanced output DC voltage which is appropriate for directly supplying the CMOS circuitry of the IoT devices. The impedance matching is simply constructed using an L-section of reactive elements. To greatly enhances the output DC voltage, the rectifier is built using multistage voltage-doubler configuration. The performance of the rectifier is evaluated, and the measurements were compared with the simulation results. The rectifier efficiency is estimated over the frequency band from 1.8 to 3 GHz, and it indicates a flat response for the RF-DC efficiency. The peak efficiency of the rectifier reaches up to 53% over the band of interest. This rectifier can find several applications in wireless communication and IoT electronic circuits.
AB - Wireless electromagnetic charging becomes an important useful module for the internet of things (IoT) devices. The majority of commercial applications utilize the wireless radiofrequency (RF) charging in 2.45 GHz band. This frequency band ensures the design compactness of either the antenna or the rectification unit. In this study, a compact RF-DC rectifier operating at 2.45 GHz is investigated. The proposed rectifier employs a coplanar strip line (CPS) configuration and a lumped LC component used for the impedance matching. The CPS architecture is selected so it provides a balanced output DC voltage which is appropriate for directly supplying the CMOS circuitry of the IoT devices. The impedance matching is simply constructed using an L-section of reactive elements. To greatly enhances the output DC voltage, the rectifier is built using multistage voltage-doubler configuration. The performance of the rectifier is evaluated, and the measurements were compared with the simulation results. The rectifier efficiency is estimated over the frequency band from 1.8 to 3 GHz, and it indicates a flat response for the RF-DC efficiency. The peak efficiency of the rectifier reaches up to 53% over the band of interest. This rectifier can find several applications in wireless communication and IoT electronic circuits.
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U2 - 10.1109/APMC47863.2020.9331536
DO - 10.1109/APMC47863.2020.9331536
M3 - Conference contribution
AN - SCOPUS:85100712792
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 89
EP - 91
BT - 2020 Asia-Pacific Microwave Conference, APMC 2020 - Proceeding
A2 - Sun, Jie
A2 - Yu, Wai Ho
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 Asia-Pacific Microwave Conference, APMC 2020
Y2 - 8 December 2020 through 11 December 2020
ER -