A regenerative microwave amplifier in diodes with intervalley electron transfer

The paper considers interaction between weak microwave signal and a diode with intervalley transfer of electrons when the diode stabilization is performed by load. It is shown that the input signal not exceeding several fractions of a microwatt can put the diode into the oscillation mode of operation. The output power under these conditions may exceed 10 mW in the 3-cm range of wavelengths, thus sustaining the regenerative amplification. The design of the amplification module is adapted to maintenance conditions as a part of the radio-wave information-and-control system of magnetically levitated vehicles

The influence of silicon wafer thickness on characteristics of multijunction solar cells with vertical p—n-junctions

A multijunction silicon solar cell with vertical p–n junctions consisted of four serial n+–p–p+-structures was simulated using Silvaco TCAD software package. The dependence of solar cell characteristics on the silicon wafer thickness is investigated for a wide range of values