DocumentCode :
1424224
Title :
A Nonlinear Lattice for High-Amplitude Picosecond Pulse Generation in CMOS
Author :
Lee, Wooram ; Adnan, Muhammad ; Momeni, Omeed ; Afshari, Ehsan
Author_Institution :
Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
Volume :
60
Issue :
2
fYear :
2012
Firstpage :
370
Lastpage :
380
Abstract :
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-Vpp, 6.3-ps pulses from a 22-GHz input signal.
Keywords :
CMOS integrated circuits; capacitors; inductors; pulse generators; CMOS; high-amplitude picosecond pulse generation; nonlinear lattice; voltage-dependent capacitors; voltage-dependent inductors; CMOS integrated circuits; Cutoff frequency; Dispersion; Frequency conversion; Harmonic analysis; Lattices; Power transmission lines; CMOS; harmonic generation; nonlinearity; sharp pulse generation; transmission line; varactor;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.2011.2178255
Filename :
6132441
Link To Document :
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