Journal ArticleDOI
Active and nonlinear wave propagation devices in ultrafast electronics and optoelectronics
Mark J. W. Rodwell,S.T. Allen,R. Yu,M. Case,Uddalak Bhattacharya,M. Reddy,E. Carman,M. Kamegawa,Y. Konishi,J. Pusl,Rajasekhar Pullela +10 more
- Vol. 82, Iss: 7, pp 1037-1059
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TLDR
In this article, active and nonlinear wave propagation devices for generation and detection of (sub)millimeter wave and (sub)-picosecond signals are described, including photodetectors with sampling circuits and instrumentation for millimeter-wave waveform and network (circuit) measurements both on-wafer and in free space.Abstract:Ā
We describe active and nonlinear wave propagation devices for generation and detection of (sub)millimeter wave and (sub)picosecond signals. Shock-wave nonlinear transmission lines (NLTL's) generate /spl sim/4-V step functions with less than 0.7-ps fall times. NLTL-gated sampling circuits for signal measurement have attained over 700-GHz bandwidth. Soliton propagation on NLTL's is used for picosecond impulse generation and broadband millimeter-wave frequency multiplication. Picosecond pulses can also be generated on traveling-wave structures loaded by resonant tunneling diodes. Applications include integration of photodetectors with sampling circuits for picosecond optical waveform measurements and instrumentation for millimeter-wave waveform and network (circuit) measurements both on-wafer and in free space. General properties of linear and nonlinear distributed devices and circuits are reviewed, including gain-bandwidth limits, dispersive and nondispersive propagation, shock-wave formation, and soliton propagation. >read more
Citations
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Journal ArticleDOI
Distributed MEMS true-time delay phase shifters and wide-band switches
S. Barker,Gabriel M. Rebeiz +1 more
TL;DR: In this paper, a coplanar waveguide (CPW) transmission line with fixed-fixed beam MEMS bridge capacitors placed periodically over the transmission line, thus creating a slow-wave structure was designed.
Journal ArticleDOI
Distributed analog phase shifters with low insertion loss
A.S. Nagra,Robert A. York +1 more
TL;DR: In this article, the authors describe the design and fabrication of distributed analog phase shifters, which consist of coplanar-waveguide (CPW) lines that are periodically loaded with varactor diodes.
Book ChapterDOI
Terahertz time-domain spectroscopy
Martin C. Nuss,Joseph Orenstein +1 more
TL;DR: The terahertz time-domain spectroscopy (THz-TDS) as discussed by the authors is a new spectroscopic technique that overcomes these difficulties in a radical way, and it has achieved a rapid proliferation within the last few years from a handful of ultrafast laser experts to researchers in a wide range of disciplines.
Journal ArticleDOI
Optimization of distributed MEMS transmission-line phase shifters-U-band and W-band designs
N.S. Barker,Gabriel M. Rebeiz +1 more
TL;DR: In this paper, the design and optimization of distributed micromechanical system (MEMS) transmission-line phase shifters at both U-and W-band is presented.
Journal ArticleDOI
Submicron scaling of HBTs
Mark J. W. Rodwell,Miguel Urteaga,T. Mathew,Dennis W. Scott,D. Mensa,Q. Lee,J. Guthrie,Y. Betser,S.C. Martin,R.P. Smith,S. Jaganathan,S. Krishnan,Stephen I. Long,Rajasekhar Pullela,B. Agarwal,Uddalak Bhattacharya,Lorene Samoska,Mattias E. Dahlstrom +17 more
TL;DR: In this article, the variation of heterojunction bipolar transistor (HBT) bandwidth with scaling is reviewed and a mesa HBT with submicron collector junctions is shown to exhibit extremely high f/sub max/ and high gains in mmWave ICs.
References
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Interaction of "Solitons" in a Collisionless Plasma and the Recurrence of Initial States
Journal ArticleDOI
XLI. On the change of form of long waves advancing in a rectangular canal, and on a new type of long stationary waves
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The soliton: A new concept in applied science
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Journal ArticleDOI
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