Title :
On-chip RF energy harvesting circuit for image sensor
Author :
Zhang, Jun Wu ; Zhang, Xiang Yu ; Chen, Zhuang Liang ; See, Kye Yak ; Tan, Cher Ming ; Chen, Shou Shun
Author_Institution :
Div. of Circuit & Syst., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
An on-chip RF energy harvesting circuit is integrated into an image sensor. The RF energy harvesting circuit is designed to function at 900 MHz. A DC voltage of 1.8V is achievable from the energy harvesting circuit output with -3 dBm input RF power. By charging up a 2.2 mF capacitor to 1.867 V, it has been demonstrated that the low-power image sensor functions well with the ability to obtain more than 1 frame of the image.
Keywords :
energy harvesting; image sensors; radiofrequency integrated circuits; capacitance 2.2 mF; frequency 900 MHz; low-power image sensor functions; on-chip RF energy harvesting circuit; voltage 1.867 V; Capacitors; Energy harvesting; Image sensors; Radio frequency; Receiving antennas; Rectifiers; Voltage measurement; Charge pump; Image sensor; RF energy harvesting; RFID; autonomous sensor;
Conference_Titel :
Integrated Circuits (ISIC), 2011 13th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-863-1
DOI :
10.1109/ISICir.2011.6131986
