A broadband high suppression frequency doubler IC for sub-millimeter-wave UWB applications

Jiangtao Sun, Qing Liu, Yong Ju Suh, Takayuki Shibata, Toshihiko Yoshimasu

Research output: Contribution to journalArticle


A broadband balanced frequency doubler has been demonstrated in 0.25-μm SOI SiGe BiCMOS technology to operate from 22 GHz to 30 GHz. The measured fundamental frequency suppression of greater than 30 dBc is achieved by an internal low pass LC filter. In addition, a pair of matching circuits in parallel with the LO inputs results in high suppression with low input drive power. Maximum measured conversion gain of -6 dB is obtained at the input drive power as low as -1 dBm. The results presented indicate that the proposed frequency doubler can operate in broadband and achieve high fundamental frequency suppression with low input drive power.

Original languageEnglish
Pages (from-to)603-610
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number2
Publication statusPublished - 2011 Feb



  • Broadband
  • Frequency doubler
  • High suppression
  • Low driver power
  • SiGe BiCMOS

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Signal Processing

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