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A 2.4GHz hybrid PPF based BFSK receiver with ±180ppm frequency offset tolerance for wireless sensor networks

TitleA 2.4GHz hybrid PPF based BFSK receiver with ±180ppm frequency offset tolerance for wireless sensor networks
Publication TypeConference Paper
Year of Publication2012
AuthorsNi, R., K. Mayaram, and T. S. Fiez
Conference Name2012 IEEE Symposium on VLSI Circuits2012 Symposium on VLSI Circuits (VLSIC)
Pagination40 - 41
Date Published06/2012
PublisherIEEE
Conference LocationHonolulu, HI
ISBN Number978-1-4673-0845-8
Abstract

A low-power 2.4GHz 1Mb/s hybrid polyphase filter (PPF) based BFSK receiver with ±180ppm frequency offset tolerance (FOT) and 40dB adjacent channel rejection (ACR) at a modulation index (MI) of 2 is presented. High FOT at low MI is achieved by a frequency-to-energy conversion architecture using PPFs without any frequency correction. The proposed hybrid topology of the PPF provides an improved ACR at reduced power. The prototype receiver fabricated in a 0.13μm CMOS process, including RF and analog front-ends, consumes 1.95mW from a 1V supply with -84dBm sensitivity.

DOI10.1109/VLSIC.2012.6243779