MMW Ultra-Compact N-Way Transformer PAs Using Bowtie-Radial Architecture in 65-nm CMOS

Jin Fu Yeh, Yu Fang Hsiao, Jeng-Han Tsai, Tian Wei Huang

Research output: Contribution to journalArticle

15 Citations (Scopus)


In this letter, the bowtie-radial and balanced dual-radial PA architectures are proposed to combine 4-way and 8-way power units. Moreover, they also make breakthrough on the power area density (PAD) performances of N-way combined PAs. These two CMOS PAs can both achieve the highest output power of 26.1 dBm at 23.5 GHz with PAD of 635 mW/mm2 and 23 dBm at 60 GHz with PAD of 277 mW/mm2, respectively.

Original languageEnglish
Article number7112552
Pages (from-to)460-462
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number7
Publication statusPublished - 2015 Jul 1



  • Balanced dual-radial PA
  • bowtie radial
  • power area density (PAD)

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this