Passive RF Receiver Design for Wireless Sensor Networks

Wireless Sensor Networks (WSN's) consist of a large number of nodes, which sense the properties of their physical environment in a distributed geographic area and communicate their information wirelessly. A typical application requires deployment of nodes over long periods of time, often years, without possibility of replacement or recharging, which makes minimum power consumption a major design consideration. The transceiver must remain in deep sleep when communication is not needed to minimize power consumption.