Digitale Transmitterarchitekturen und -schaltungen für die nächste Generation drahtloser Kommunikation

Translated title of the contribution: Fully-digital transmitter architectures and circuits for the next generation of wireless communications

Michael Kalcher*, Michael Fulde, Daniel Gruber

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

The rapidly evolving trend for increased data rates in today’s and future cellular communication systems poses extreme difficulties for developers of cellular transceivers. A multitude of standards ranging from legacy 2G to the upcoming, yet to be defined, 5G needs to be supported across a broad but fragmented frequency spectrum. Higher data throughput necessitates higher bandwidths, increased number of aggregated carriers, and more complex of modulation schemes. Capable transmitters must exhibit highest in-band performance, e.g. linearity and error vector magnitude. Simultaneously, out-of-band performance, like noise and spurious emissions, is crucial to co-exist with other wireless channels, such as the transceiver’s receivers and other participants. While a “more of everything” is expected, competitive solutions for the wireless market require a constant decrease in silicon area, bill of materials, and especially power consumption. This paper presents the evolution of integrated transmitter architectures facing the above challenges: From conventional analog direct conversion transmitters to fully-digital direct modulation RF transmitters, challenges and benefits are highlighted, presenting modern architectures that benefit from the most advanced technology nodes while supporting upcoming 5G cellular wireless communications.

Original languageGerman
Pages (from-to)89-98
Number of pages10
Journale&i - Elektrotechnik und Informationstechnik
Volume135
Issue number1
DOIs
Publication statusPublished - 1 Feb 2018

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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