A 46% Efficient 0.8dBm Transmitter for Wireless Sensor Networks
Chee, Y.H.
Niknejad, A.M.
Rabaey, J.
Dept. of EECS, California Univ., Berkeley, CA;
This paper appears in: VLSI Circuits, 2006. Digest of Technical Papers. 2006 Symposium on
Publication Date: 0-0 0
On page(s): 43-44
Location: Honolulu, HI,
ISBN: 1-4244-0006-6
INSPEC Accession Number: 9189003
Digital Object Identifier: 10.1109/VLSIC.2006.1705303
Current Version Published: 2007-02-20
Abstract
This paper presents a 1.9GHz low power transmitter for wireless sensor networks. It uses film bulk acoustic resonators (FBAR) for RF carrier generation and is co-designed with the antenna. The two-channel transmitter is 46% efficient when radiating 1.2mW from a 650mV supply. With 50% on-off keying, it consumes 1.35mW and supports data rate up till 330kbps. The 1.2times0.8mm2 transmitter is implemented in 0.13mum CMOS and is integrated into a 38times25times8.5mm3 solar powered sensor node
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