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Analog Techniques for Energy Efficient Communication Systems

The development of 5G wireless communication systems presents a great challenge in the development of microwave front-end hardware. Next-generation systems demand not only increased capacity in terms of increased data rates and modulation  bandwidths and across carrier aggregation, but also require linear and efficient operation over a wide output power dynamic range. With the RF power amplifier (PA) dominating the power consumption, bandwidth, and linearity limitations, new PA architectures are required to satisfy system requirements. Furthermore, the use of massive MIMO systems present new challenges to the PA, including generating a time-varying load impedance due to simultaneous use of coupled antennas, and preventing element-level linearity correction.

This seminar will focus on new power amplifier techniques for communications that address the challenges of next-generation systems while maintaining energy-efficient operation. A three-pronged approach is described, consisting of:

  • energy-efficient power amplifier design
  • analog techniques for signal generation and linearization
  • integrated load sensing and power amplifier adaptation
     
  • Richard Berman
  • Harsh Shukla

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