Pouya Kamalinejad

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The Internet of Things (IoT) is an intelligent infrastructure of uniquely identifiable devices capable of wirelessly communicating with each other, services, and people on a large scale through the Internet [1]. IoT aims to make the Internet ubiquitous and pervasive, and has the potential to affect many aspects of users’ quality of life. The networked(More)
A high-efficiency CMOS rectifier with low start-up voltage for ultra-high-frequency (UHF) radio-frequency identification (RFID) applications is presented. To enhance the power conversion efficiency (PCE) of the conventional rectifier when the input voltage (power) is low, appropriate gate-drive voltages for each stage of the rectifier are generated using a(More)
A CMOS rectifier with a wide input signal range for radio-frequency identification (RFID) applications is presented. Using quasi-floating gate technique, a gate-biasing scheme is proposed to provide a relatively flat power conversion efficiency (PCE) curve for a wide input voltage (power) range. The proposed technique also enables an efficient operation for(More)
Efficiency enhancement techniques for CMOS rectifiers used in wireless power harvesting applications such as radio-frequency identification (RFID) or biomedical implants are overviewed. More specifically, three recently proposed efficiency enhancement techniques, namely, switched-capacitor gate-boosting scheme, auxiliary cell scheme and quasi-floatinggate(More)
A high-efficiency CMOS rectifier for radio-frequency identification (RFID) applications is presented. Using an on-chip generated clock signal, a new switching scheme is proposed to enhance the power efficiency of the conventional 4 transistor (4T)-cell rectifier. By switching the gate of charge-transfer transistors to the intermediate nodes of preceding and(More)
An efficient magnetically coupled wireless power transfer system using a conical coil structure is presented. The use of conical inductors instead of traditional planar coils increases the self-resonance frequency of the transmitter resonator while maintaining the flux linkage to the receiver side. Electromagnetic (EM) and circuit simulation results predict(More)