A K-band CMOS quadrature frequency tripler using sub-harmonic mixer

Chien-Nan Kuo*, Huan Sheng Chen, Tzu Chao Yan

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Scopus citations


A low-power frequency tripler is designed by using the sub-harmonic mixer configuration for K-band applications. The proposed circuit features quadrature signal generation, applicable to LO signal synthesis in millimeter-wave wireless transceivers. It achieves conversion gain of -5.7 dB at the output frequency of 21 GHz. Implemented in a 0.18 μm CMOS technology, the circuit consumes power of 7.5 mW with 1.5 V supply voltage. The entire die occupies an area of 1000 × 1050 μm2.

Original languageEnglish
Article number5320199
Pages (from-to)822-824
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number12
StatePublished - 1 Dec 2009


  • Doubler
  • Frequency mixing
  • Frequency multiplication
  • Tripler

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