LNA en tecnología de SiGe para aplicaciones WLAN IEEE802.11a/HiperLAN

Abstract

A MMIC for the IEEE 802.11a/HiperLAN WLAN standard has been designed and fabricated in a 0.4-μm SiGe BiCMOS technology. The IC is part of a direct conversion receiver and is composed of three differential stages to ensure good output phase balance and high isolation. The LNA exhibits in simulation a gain of 14 dB and wideband input and output matching. An output 1-dB compression point of –6 dBm and a noise figure of 4.6 dB were achieved at the frequency of interest. The MMIC LNA was mounted and measured to test the similarity with simulations.