Silicon-based Transmitters for Millimeter-wave Antenna Arrays (SITRA)

Start date 01/01/2015
End date The project is closed: 31/12/2016
Motivation
Base stations or backhaul links with 100s of individually controlled antenna elements offer great potential for beam forming, MIMO communication, and energy savings. In contrast to related defence applications, lower output power per antenna and signals with strict distortion requirements will be used. The use of large antenna arrays operating at mmw frequencies is a dramatic paradigm shift with very large multi-disciplinary implementation challenges.
This project will investigate new SiGe BiCMOS based mmw transmitter solutions that combine high efficiency, high linearity, and low cost. The research is expected to play an important role in the development of next generation mobile communication and defence applications.

Objectives
  • Determine efficiency/linearity trade-offs in SiGe BiCMOS based PAs and array transmitters at mmw-frequencies with spectrally efficient modulated signals.
  • Demonstrate single-chip transmitter including PA and modulator/up-converter.
  • Develop calibrated on-wafer nonlinear characterization and modelling of transmitter circuits with wideband modulated signals.
  • Implement CAE based solution for co-design of transmitter circuits, antenna array, and signals that maximize system performance for given linearity, energy consumption, and radiated signal specs.
  • Demonstrate a highly efficient and wideband multi-channel transmitter chip co-designed with an antenna array, for use in the MATE project demonstrator.
Project outcome
  • Demonstration of CAE solution for cross-layer MIMO transmitter design
  • 1 test-bed for wideband millimetre wave measurements
  • Updated roadmaps for Si-based PAs and transmitters
  • 5 articles in high impact journals
  • 5 conference papers at high-impact conferences
  • 2 co-authored (industry/academia) scientific article
  • 3 invited or tutorial presentations at good conferences
Research Partners
Project Leaders
Christian Fager, Chalmers, Deputy Project Leader: Thomas Eriksson, Chalmers
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Published: Thu 19 Feb 2015. Modified: Tue 14 Mar 2017