In this paper we present a RF-DC rectifier which operates over a wide range of input power by providing a regulated output DC voltage. The circuit solution we propose is based on a novel active load circuit which adjusts the output current as a function of the incoming RF power. This allows maximizing both the efficiency and sensitivity of the circuit. Circuit prototypes fabricated in 130nm CMOS technology start to operate at -14dBm, providing a regulated output voltage of 1.6÷1.8V in the -14÷1dBm RF input power at 868MHz. Noticeably, the circuit efficiency of the rectifier peaks at 45%, remaining above 30% in the -12÷+1dBm input power range.

RF to DC CMOS rectifier with high efficiency over a wide input power range for RFID applications / Scorcioni, Stefano; Bertacchini, Alessandro; Larcher, Luca; Ricciardi, Antonio; Dondi, Denis; Pavan, Paolo. - ELETTRONICO. - (2012), pp. 1-3. ((Intervento presentato al convegno IEEE International Microwave Symposium - IMS tenutosi a Montreal, Canada nel 17-22 June 2012 [10.1109/MWSYM.2012.6259760].

RF to DC CMOS rectifier with high efficiency over a wide input power range for RFID applications

SCORCIONI, Stefano;BERTACCHINI, Alessandro;LARCHER, Luca;RICCIARDI, Antonio;DONDI, Denis;PAVAN, Paolo
2012-01-01

Abstract

In this paper we present a RF-DC rectifier which operates over a wide range of input power by providing a regulated output DC voltage. The circuit solution we propose is based on a novel active load circuit which adjusts the output current as a function of the incoming RF power. This allows maximizing both the efficiency and sensitivity of the circuit. Circuit prototypes fabricated in 130nm CMOS technology start to operate at -14dBm, providing a regulated output voltage of 1.6÷1.8V in the -14÷1dBm RF input power at 868MHz. Noticeably, the circuit efficiency of the rectifier peaks at 45%, remaining above 30% in the -12÷+1dBm input power range.
IEEE International Microwave Symposium - IMS
Montreal, Canada
17-22 June 2012
1
3
Scorcioni, Stefano; Bertacchini, Alessandro; Larcher, Luca; Ricciardi, Antonio; Dondi, Denis; Pavan, Paolo
RF to DC CMOS rectifier with high efficiency over a wide input power range for RFID applications / Scorcioni, Stefano; Bertacchini, Alessandro; Larcher, Luca; Ricciardi, Antonio; Dondi, Denis; Pavan, Paolo. - ELETTRONICO. - (2012), pp. 1-3. ((Intervento presentato al convegno IEEE International Microwave Symposium - IMS tenutosi a Montreal, Canada nel 17-22 June 2012 [10.1109/MWSYM.2012.6259760].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/737891
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