Abstract
The advancement of the process technology, especially CMOS technology, has played a major role in the miniaturization of the mobile device as well as extending its battery life. As digital logic continues to shrink in size and increase in density, implementing RF/analog functions digitally becomes increasingly more attractive. RF/analog digitization not only allows the design blocks to benefit from process scaling, but also enables a more complete system-on-chip integration. In this article, several digitally enhanced CMOS transmitter implementations are discussed, and their trade-offs are analyzed. A digital quadrature transmitter that is process-scaling-friendly and multimode-capable is presented at the end. The chip is implemented in 40 nm CMOS process and can easily be integrated with digital baseband processors. Show more
Publication status
publishedExternal links
Journal / series
IEEE Communications MagazineVolume
Pages / Article No.
Publisher
IEEEOrganisational unit
09757 - Wang, Hua / Wang, Hua
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