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Telecommunications and Radio Engineering
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ISSN Print: 0040-2508
ISSN Online: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v69.i11.70
pages 1005-1017

SELF-EXCITED OSCILLATIONS IN ABRUPT p - n JUNCTIONS WITH A FIXED REVERSE BIAS

K. A. Lukin
A.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
P. P. Maksymov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine

ABSTRACT

Numerical methods are used to solve the drift-diffusion model equations for reverse-based p - n junctions. A regime of self-excited oscillations is analyzed for an abrupt junction with a fixed reverse bias. As has been shown, the equations of the drift-diffusion model of the p - n junctions under analysis in fact make up a mathematical model of a self-oscillating system. The generation mechanism of self-excited excitations has been investigated. The factors influencing the oscillation frequency, amplitude and spectrum have been established and frequency ranges determined for reverse-biased p - n junctions made of various materials.


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