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A linear switch array pulsed modulator (LSAPM) which can generate a central frequency oscillation pulse was designed. The circuit model of the LSAPM was established, and the influences of parameters of gas spark switch including electrodes capacitance, spark inductance, spark resistance and gas switch stages on the output waveform and amplitude-frequency characteristics were investigated. The results...
We obtained frequency increase in resonant-tunneling-diode (RTD) terahertz (THz) oscillators by thick antenna electrode. The THz oscillator was composed of an RTD and slot antenna. Because an oscillation at resonance frequency of the RTD and slot antenna occurs when the negative differential conductance of the RTD compensates for the loss of the antenna, a reduction in the conduction loss and inductance...
Quartz crystal (QC) is one of the well-known piezoelectric materials. However, it was used as a proximity sensor in air in this work. This work stabilized the voltage output to an oscillator circuit connected with a QC. As the thickness-shear mode QC moved closer to the conductive plates from 10 mm to 5 mm while the other electrode was coated with an acrylic rubber compound to eliminate the quality...
In order to study on nonlinear vibration of RLC circuit, a mathematical model of RLC circuit with inductance nonlinearity and harmonic excitation is established by means of Lagrange-Maxwell equation. Based on the method of multiple scales for nonlinear vibration analysis, the first approximation solutions and corresponding to steady state solutions of the 1/3 subharmonic resonance system are obtained...
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