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Frequency-modulation sensitivity of Gunn oscillators

Frequency-modulation sensitivity of Gunn oscillators

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It is shown that, when Gunn oscillators are frequency-modulated by means of a small a.c. component superimposed on the bias supply, the resulting microwave-frequency deviation and the impedance presented by the diode to the modulation supply are dependent on the modulation frequency. The magnitudes of the frequency-modulation sensitivity and diode terminal impedance have been measured for modulation frequencies in the range 100Hz–100kHz.

References

    1. 1)
      • G. Weidmann , H.J. Thaler . Thermal effects in modulated IMPATT oscillators. Electron. Lett. , 92 - 94
    2. 2)
      • Meade, M.L.: `Investigation of current-noise and frequency-modulation noise in Gunn oscillators', Presented at the physical society conference on physical aspects of noise in electronic devices, 1968, Nottingham University.
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