Ultra-Low Power Wireless Technologies for Sensor Networks is written for academic and professional researchers designing communication systems for pervasive and low power applications. The main emphasis of the book is on design techniques for low power, highly integrated transceivers. Instead of presenting a single design perspective, this book presents the design philosophies from three diverse research groups, providing three completely different strategies for achieving similar goals. The following transceiver styles are represented: MEMS-assisted super-regenerative transceiver architecture Ultra-wideband transceiver architecture Low-IF CMOS transceiver architecture The design of RF transceiver circuits and architectures is historically (and notoriously) heuristic. By presenting diverse perspectives on transceiver design, Ultra-Low Power Wireless Technologies for Sensor Networks prepares the reader for the countless design decisions they will be making in their own designs. Ultra-Low Power Wireless Technologies for Sensor Networks also includes invited chapters: "Ultra-Low Power Radio in a Package Using Ultra-Wideband Technology" by Julien Ryckaert and Steven Sanders from Interuniversity Microelectronics Centre and "Low Energy Wireless Communication" by Ben Cook and Kris Pister from the University of California, Berkeley.