An adaptive 2.4 GHz low-IF receiver in 0.6 /spl mu/m CMOS for wideband wireless LAN

Author

Behbahani, F. ; Leete, J. ; Weeguan Tan ; Kishigami, Yuuki ; Karimi-Sanjaani, A. ; Roithmeier, A. ; Hoshino, Kenji ; Abidi, Abdessalem

Author_Institution

Integrated Circuits & Syst. Lab., California Univ., Los Angeles, CA, USA

fYear

2000

fDate

9-9 Feb. 2000

Firstpage

146

Lastpage

147

Abstract

High bit-rate communications require wideband channels and complex modulation schemes, such as QAM, to convey multiple bits per symbol. Available bandwidth (BW) and desired user density per cell together determine the BW allocated per channel. In short-range applications like indoor wireless LAN where transmitted power is limited to 1 mW, FCC rules allow channel BW higher than 1 MHz. This system adapts to channel bandwidths ranging from 0.625 MHz to 10 MHz, and modulations spanning 4-QAM to 64-QAM. The carrier frequency is slowly hopped across the 2.4 GHz ISM band.

Keywords

CMOS integrated circuits; UHF integrated circuits; indoor radio; quadrature amplitude modulation; radio receivers; wireless LAN; 0.6 micron; 0.625 to 10 MHz; 2.4 GHz; CMOS; FCC rules; ISM band; QAM; carrier frequency; channel bandwidths; complex modulation schemes; high bit-rate communications; indoor wireless LAN; low-IF receiver; short-range applications; transmitted power; user density per cell; wideband channels; wideband wireless LAN; Noise measurement; Radio frequency; Solid state circuits; Wideband; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2000. Digest of Technical Papers. ISSCC. 2000 IEEE International

Conference_Location

San Francisco, CA, USA

ISSN

0193-6530

Print_ISBN

0-7803-5853-8

Type

conf

DOI

10.1109/ISSCC.2000.839725

Filename

839725