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The paper shows four basic circuit functions which are RF transceiver, AMS, power amplifier (PA) and power management (PM), and digital signal processor (DSP). In this article, the authors emphasize the first three circuit functions, which drive analog and RF technology needs. Each of those three major parts in a RF front-end for a wireless system are discussed in a separate section with special emphasis on the device needs and technology choices for those blocks and with main focus on the frequency range from 0.8 to 10 GHz. A section on millimeter wave circuits and devices cover device and technology integration issues for applications in the frequency range starting from 10-100 GHz. Finally, we discuss the evolution of technology choices, integration issues, and potentially new emerging devices, all within the time-frame for the 2003 ITRS roadmap (2003-2018).
Date of Publication: Nov.-Dec. 2004