2026-04-17T16:54:58Zhttps://recercat.cat/oai/requestoai:recercat.cat:2117/1172992026-02-07T02:18:13Zcom_2072_1033col_2072_452950
RECERCAT
author
Gomez Cid-Fuentes, Raül
author
Martínez García, Herminio
author
Poveda López, Alberto
author
Alarcón Cot, Eduardo José
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 ReviewedPostprint (published version)
Restricted access - publisher's policy
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
Electronically tunable switch-mode high-efficiency adaptive band-pass filters for energy harvesting applications
Conference report