Silicon radio integration: architectures and technology: from cartesian zero IF receive & transmit to polar zero I and Q, from silicon bipolar to bulk and SOI CMOS

During the nineties we have witnessed a string of advances in Silicon RF integration: from the introduction of the first integrated Si bipolar radios for GSM and DECT in the late eighties to the full single chip integration capabilities today using SiGe BiCMOS technologies. Where RF design used to be a black art, it is becoming a "normal practice" today.