A new architecture for concurrent dual-band digital predistortion

Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki, Takayuki Yamada, Takana Kaho, Yo Yamaguchi, Kazuhiro Uehara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


This paper proposes a new power amplifier's linearization architecture for a unified access point uses a wideband power amplifier and transmits multi-band signals concurrently for system's flexibility. To achieve high power efficiency and low interference of the access point, we evaluate a concurrent dual-band digital predistortion (DPD) technique for the wideband amplifier using a feedback loop. A concurrent dual-band mixer is applied in the feedback loop to reduce the complexity and the cost. In addition, DPD is operated at low IF to reduce nonsymmetrical spectral regrowth. The simulation result shows the validity of this architecture and a good linearization performance.

Original languageEnglish
Title of host publication2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013
Number of pages3
Publication statusPublished - 2013
Externally publishedYes
Event2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
Duration: Nov 5 2013Nov 8 2013

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


Other2013 3rd Asia-Pacific Microwave Conference, APMC 2013
Country/TerritoryKorea, Republic of


  • concurrent multi-band mixer
  • nonlinear distortion
  • power amplifiers
  • predistortion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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