EECS 522 | Analog Integrated Circuits

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A 6.75-7.25 GHz Pulse Position Modulation Ultra-Wideband Receiver Front End

David DuRussel, Osama Khan, Mark Swiderski

Abstract

Although the concept of ultra-wideband modulation has been known and used for several decades, it is currently being re-visited by the integrated circuits community as a viable high-speed, short-range wireless link technology.  Ultra wideband signals, with their large bandwidth, propagation characteristics and high timing resolution, add special advantages to wireless communication that make it suitable for applications such as WPAN/WLAN, wireless USB & multimedia, locationing/tagging and biomedical imaging. At the same time UWB poses interesting design challenges [1]. In this project we are implementing an ultra-wideband receiver front end for PPM communication. The receiver architecture is based on a non-coherent energy detection scheme [2]. There will be three channels centered at 6.75GHz, 7 GHz and 7.25 GHz each with a bandwidth of 250 MHz.  The channel selection will be done using switchable filters.

1. Raul Blazquez, “Ultra-wideband Digital Baseband”, PhD Dissertation, Massachusetts Institute of Technology, 2006.
2. Fred S. Lee, “Energy Efficient Ultra-Wideband Radio Transceiver Architectures and Receiver Circuits,” PhD Dissertation, Massachusetts Institute of Technology, 2002

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