Polar phase-conjugating active arrays for spectrally-efficient linear wireless links

@article{Cabria2010PolarPA,
  title={Polar phase-conjugating active arrays for spectrally-efficient linear wireless links},
  author={Lorena Cabria and Jose A. Garcia and Theophile Aballo and Zoya Popovic},
  journal={2010 IEEE MTT-S International Microwave Symposium},
  year={2010},
  pages={77-80}
}
In this paper, polar transmitter concepts for high-efficiency linear power amplifiers are applied to phase conjugating arrays, with the goal of improving spectral efficiency and linearity in full-duplex communications. The nearly linear control of the drain biasing voltage over the conversion characteristic of an active gate mixer is used to overcome the highly nonlinear AM-to-AM conversion characteristic between the local oscillator (LO) and the response signal ports. A 4-element linear patch… CONTINUE READING
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