Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

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2002, Volume58

Issue 7&8

157 pages

Issue price - $394.00

O. V. Botsula
V. Karazin National University of Kharkov, 4, Svoboda Sq., Kharkov, 61077, Ukraine

E. D. Prokhorov
V. Karazin National University of Kharkov, 4, Svoboda Sq., Kharkov, 61077, Ukraine

The operation of a series-connected resonant-tunnel diode and Gunn diode in the resonance circuit is considered. The current-voltage characteristics of diode combination have the peculiarities which lead to a current jump as the voltage increases or decreases at the diodes. The peculiarities of the current-voltage characteristics and current jump are analyzed for the different lengths of the Gunn diodes which determine the current waveform of the diodes in the resonance circuit. It is shown that the oscillation can occurs in the millimeter wave band at the certain ratios of the parameters of resonant-tunnel and Gunn diodes due to the resonance tunneling and intervalley electron transfer. When joint operation of such diodes there are two generation regions: at the sacrifice of the resonance tunneling and intervalley electron transfer. In these regions the generation is possible at multiple frequencies.

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