T-LINC Architecture with Digital Combination and Mismatch Correction in the Receiver

Emilio Jose Martinez Perez*, Feridoon Jalili, Ming Shen, Jan H. Mikkelsen, Ole Kiel Jensen, Gert Frølund Pedersen

*Corresponding author

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

With the recent popularization of nanosatellite technologies, the industry is putting a notable effort into increasing the performance of the systems integrated in these small spacecrafts. In this paper, a novel outphasing amplification architecture to enhance the power efficiency of a satellite downlink is presented and evaluated. Based on a conventional LINC (LInear amplification with Nonlinear Components) architecture, the proposed architecture transmits both outphased signals, and carry out the signal combination in the receiver in the base-band domain. The resulted architecture takes advantage of an efficient signal amplification given by the nonlinear power amplifiers, while the elimination of the signal power combiner from the transmitter, increases the overall power efficiency. We outline and analyze those elements that restrict the performance of this novel approach. The simulations and laboratory experimentation probes the proposed architecture is feasible, and able to improve a ?? % the power efficiency, compared to a classic transmitter front-end architecture.
Original languageEnglish
Title of host publication2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) : NORCHIP and International Symposium of System-on-Chip, SoC 2019 - Proceedings
EditorsJari Nurmi, Peeter Ellervee, Kari Halonen, Juha Roning
Number of pages5
PublisherIEEE
Publication dateOct 2019
Pages1-5
Article number8906983
ISBN (Print)978-1-7281-2770-5
ISBN (Electronic)978-1-7281-2769-9
DOIs
Publication statusPublished - Oct 2019
Event2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) - Helsinki, Finland
Duration: 29 Oct 201930 Oct 2019

Conference

Conference2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC)
CountryFinland
CityHelsinki
Period29/10/201930/10/2019

Keywords

  • Digital combination
  • Transmitted LINC (T-LINC)
  • digital mismatch correction
  • linear amplification with nonlinear components (LINC)
  • outphasing amplification

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