Title :
Efficient wireless power transmission technology based on above-CMOS integrated (ACI) high quality inductors
Author :
Raju, Salahuddin ; Xing Li ; Yan Lu ; Chi-Ying Tsui ; Ki Wing-Hung ; Mansun Chan ; Yue, C. Patrick
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
Fully-integrated on-chip inductors with up to 200 nH/mm2 inductance density and a peak qualify factor of 25 are demonstrated based on above-CMOS integration (ACI) post processing techniques. Utilizing a 380-nH ACI inductor, a 2.5×2.5 mm2 wireless energy harvesting antenna was implemented. Measurement results show that it can receive 27 mW from a 250-mW transmitting power source at a distance of 5.3 mm. This represents a 7-fold increase in wireless power transfer efficiency compared to other reported technologies.
Keywords :
CMOS integrated circuits; energy harvesting; inductive power transmission; inductors; ACI post processing technique; above-CMOS integrated high quality inductor; complementary metal oxide semiconductor; distance 5.3 mm; fully-integrated on-chip inductor; inductance density; peak qualify factor; power 250 mW; power 27 mW; transmitting power; wireless energy harvesting antenna; wireless power transmission technology; Inductance; Inductors; Integrated circuits; Power transmission; Q-factor; Silicon; Wireless communication;
Conference_Titel :
Electron Devices Meeting (IEDM), 2014 IEEE International
DOI :
10.1109/IEDM.2014.7047038
