JSTS:Journal of Semiconductor Technology and Science

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A CMOS Outphasing Transmitter Using Two Wideband Phase Modulators

  • Lee, Sung-Ho (Korea Electronics Technology Institue (KETI)) ;
  • Kim, Ki-Hyun (Applied Electromagnetics Laboratory, School of Electrical Engineering, Institute of New Media and Communications (INMC), Seoul National University) ;
  • Song, Jae-Hoon (Applied Electromagnetics Laboratory, School of Electrical Engineering, Institute of New Media and Communications (INMC), Seoul National University) ;
  • Lee, Kang-Yoon (Department of Electronics Engineering, Konkuk University) ;
  • Nam, Sang-Wook (Applied Electromagnetics Laboratory, School of Electrical Engineering, Institute of New Media and Communications (INMC), Seoul National University)
  • Received : 2011.10.18
  • Published : 2011.12.31
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Abstract

This paper describes a CMOS outphasing transmitter using two wideband phase modulators. The proposed architecture can simplify the overall outphasing transmitter architecture using two-point phase modulation in phase-locked loop, which eliminates the necessity digital-to-analog converters, filters, and mixers. This architecture is verified with a WCDMA signal at 1.65 GHz. The prototype is fabricated in standard 130 nm CMOS technology. The measurement results satisfied the spectrum mask and 4.9% EVM performance.

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References

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