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  • Microwave transistor power amplifier

    An experimental study of the power amplifier in the frequency range 0.1-1 GHz. The amplitude and amplitude-frequency characteristics of the amplifier are obtained. The dependence of the second harmonic level of the useful signal on the input power is removed. It is shown that in the operating frequency range the gain is not less than 25 dB, and the upper limit of the linearity of the amplitude characteristic of the output is not less than 1 mW

    Keywords: Transistor amplifier, ultra-high frequencies, amplitude response, amplitude-frequency response, upper limit of linearity of amplitude response, second harmonic

  • Frequency Modulated Signal Generator

    An experimental study of a transistor generator with varicap rearrangement has been carried out. A schematic diagram is given, a brief description of the construction and an experimental technique are given. As the results of the experiment are given: • frequency dependence on control voltage (modulation characteristic) • dependence of power on control voltage (parasitic amplitude modulation) • output spectrum in the 500 MHz band

    Keywords: FM signal generator, voltage-controlled oscillator, modulation characteristic, output spectrum, transistor oscillator