Universitat Politècnica de Catalunya
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla
Universitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits
2012
Wireless Sensor Networks (WSN) present a pending challenge for a complete deployability due to energy requirements. The Self-Powered WSN approach aims to extend the sensor node life by means of Energy Harvesting. The harvested energy presents an erratic behavior in both time and frequency. In this paper, a new concept of switch-mode electronically tunable band-pass filters is presented to adaptively follow the power source variations and to maximize the power transfer. To implement these switch-mode filters, three alternatives are presented. These filter topologies are modeled and evaluated. Additionally, some design guidelines are provided. The results show how these high efficiency topologies present a band-pass behavior whose center frequency can be electronically tuned over one decade. The results target the integration of these high-efficiency switch-mode band-pass filters into the future harvesting front-ends.
Peer Reviewed
Postprint (published version)
Conference report
English
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors; Wireless communication systems; Wireless sensor networks; Adaptive filters; Band-pass filters; Energy harvesting; Comunicació sense fil, Sistemes de
Institute of Electrical and Electronics Engineers (IEEE)
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6272125
Restricted access - publisher's policy
E-prints [72987]
