Haddad, Pierre-Antoine
[UCL]
Raskin, Jean-Pierre
[UCL]
Flandre, Denis
[UCL]
Two 2-stage rectifiers are designed at 950 MHz and 2.45 GHz in 65 nm CMOS bulk technology to provide a 100 μW output power under 1 V with 79.9% and 76.6% power conversion efficiency, respectively. A portable and automated design methodology is used here based on foundry models. This methodology is extended to optimize both the cross-coupled and differential drive rectifier architectures at UHF by using a derivative-free optimization algorithm. Transistor and capacitance sizing are discussed based on the method results and a simple RC-filter model. A first-order matching network is used to simulate the overall conversion efficiency of an energy-harvesting system using a 50 Ω antenna. For 100 μW output power, minimum input powers of -8.84 dBm and -8.56 dBm are simulated at 950 MHz and 2.45 GHz, respectively. These low power and high-efficiency AC/DC power converters can be used as energy harvesters in RF links to power wearable biomedical devices.
Bibliographic reference |
Haddad, Pierre-Antoine ; Raskin, Jean-Pierre ; Flandre, Denis. Efficient passive energy harvesters at 950 MHz and 2.45 GHz for 100 μW applications in 65 nm CMOS.2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS) (Monte Carlo (Monaco), du 11/12/2016 au 14/12/2016). In: Proceedings of the 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS), IEEE2017, p.508-511 |
Permanent URL |
http://hdl.handle.net/2078.1/182364 |