A nonlinear lattice for high-amplitude picosecond pulse generation in CMOS

Wooram Lee, Muhammad Adnan, Omeed Momeni, Ehsan Afshari

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


In this paper, we study an electrical nonlinear medium consisting of voltage-dependent capacitors and inductors to generate sharp pulses from a lower frequency sinusoid. First, we analyze the optimum conditions for maximum harmonic generation in a uniform nonlinear line. Next, we extend the nonlinear line to a two-dimensional nonlinear lattice that is compatible with CMOS technology. Compared with the nonlinear line, the lattice relies on spatial power combining, higher cut-off frequency, and nonlinear wave interaction to enhance the pulse amplitude and sharpness. To show the feasibility of this method, we implement the first CMOS nonlinear lattice in a 0.13-μm CMOS process, and successfully demonstrate 2.7-V pp, 6.3-ps pulses from a 22-GHz input signal.

Original languageEnglish (US)
Article number6132441
Pages (from-to)370-380
Number of pages11
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number2
StatePublished - Feb 2012

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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