Reflective-Type Phase Shifters for Multiple-Antenna Transceivers

  title={Reflective-Type Phase Shifters for Multiple-Antenna Transceivers},
  author={Hossein Zarei and Cameron T. Charles and David J. Allstot},
  journal={IEEE Transactions on Circuits and Systems I: Regular Papers},
A 10.5-GHz reflective-type phase shifter (RTPS) using resonant loads with L-match impedance transformation (RLT) is implemented in a 0.25-mum SiGe BiCMOS process. A 2.4-GHz RTPS with RLT loads is also integrated in 0.18-mum CMOS; it employs a negative resistance (NR) technique to reduce the loss by 5.9 dB compared to a conventional design that is also implemented. Several other 2.4-GHz reflective loads are fabricated in 0.18-mum CMOS including a Y-shaped dual RLT (DRLT). A transformation… CONTINUE READING
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