Electrical & Computer Engineering     |     Carnegie Mellon

Wednesday, November 3, 12:00 - 1:00pm HH-1112


Masoud Zargari
Atheros Communications

A Single-Chip Dual-Band Tri-Mode CMOS Transceiver for IEEE 802.11a/b/g WLAN


This talk presents the design of a dual-band, tri-mode wireless LAN chipset for IEEE 802.11a/b/g. The chipset, designed in 0.25/spl mu/m standard CMOS, features a 5GHz RF transceiver, a 2.4GHz RF transceiver, and a baseband processor with media access controller. The overall design achieves a measured sensitivity of at least -70dBm at 54Mbps and -92dBm at 6Mbps for IEEE 802.11a/g as well as -94dBm at 1Mbps for 802.11b.


Masoud Zargari received the B.S. degree in electrical engineering from Tehran University in 1989 and M.S. and Ph.D. degrees in electrical engineering from Stanford University, Stanford, CA, in 1993 and 1997 respectively. From 1996 to 1998 he was a member of the technical staff at Wireless Access Inc., Santa Clara, CA. where he worked on the design and development of wireless systems for two-way messaging networks. In 1998 he joined Atheros Communications as a member of the founding team where he is currently the Director of analog Engineering focusing on integrated systems for the IEEE 802.11based wireless LANs. During 1999 and 2000 Dr. Zargari was a consulting assistant professor at Stanford University where he taught courses in the area of RF and analog integrated circuit design.