Fully-digital transmitter architectures and circuits for the next generation of wireless communications

Michael Kalcher, Michael Fulde, Daniel Gruber

Research output: Contribution to journalArticleResearchpeer-review

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.

Translated title of the contributionFully-digital transmitter architectures and circuits for the next generation of wireless communications
LanguageGerman
Pages89-98
Number of pages10
Journale&i - Elektrotechnik und Informationstechnik
Volume135
Issue number1
DOIs
StatusPublished - 1 Feb 2018

Fingerprint

Transmitters
Networks (circuits)
Communication
Transceivers
Direct analogs
Modulation
Cellular radio systems
Communication systems
Electric power utilization
Throughput
Bandwidth
Silicon

Keywords

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    Cite this

    Digitale Transmitterarchitekturen und -schaltungen für die nächste Generation drahtloser Kommunikation. / Kalcher, Michael; Fulde, Michael; Gruber, Daniel.

    In: e&i - Elektrotechnik und Informationstechnik, Vol. 135, No. 1, 01.02.2018, p. 89-98.

    Research output: Contribution to journalArticleResearchpeer-review

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