NDLI: Trapped-plasma-mode waveforms, circuit analysis, and harmonic generation

Content Provider	IEEE Xplore Digital Library
Author	Snapp, C.P. Stark, L.A.
Copyright Year	1970
Description	Author affiliation: Cornell University, Ithaca, N.Y. (Snapp, C.P.)
Abstract	The operation of $p^{+}-n-n^{+}silicon$ avalanche diodes with conversion efficiencies as high as 50 percent in the 0.9 to 1.7 GHz range is shown to be completely consistent with a trapped-plasma-mode explanation. Detailed sampling oscilloscope measurements of external current anddV/dtwaveforms have strongly substantiated Evans' analysis for the interaction between standard coaxial cavities and trapped-plasma-mode oscillators, and provided direct confirmation of the principal features of the trapped-plasma mode. The experimentaldV/dtwaveforms indicated the presence of peak displacement currents prior to breakdown, that were on the order of 1.5 times the critical current (q N_{d}v_{s}), required to launch a traveling avalanche zone. Approximately determined conduction-current waveforms exhibited larger currents during the shock front transit than during the extraction period. The terminal voltage during the extraction period was found to be near zero. The 4-GHz upper bound frequency and 1-GHz optimum frequency for the fundamental trapped-plasma mode were found to be consistent with the analytical calculations made by Cottam for diodes with doping and width similar to those studied and for waveforms similar to those observed.
Starting Page	116
Ending Page	118
File Size	183320
Page Count	3
File Format	PDF
DOI	10.1109/IEDM.1970.188306
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1970-10-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Circuit analysis Frequency conversion Diodes Silicon Sampling methods Oscilloscopes Current measurement Measurement standards Coaxial components Oscillators
Content Type	Text
Resource Type	Article

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