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Title: High spectral purity cavity stabilized microwave oscillators
Authors: Gupta, A Sen
Keywords: Data acquisition;Photonuclear experiment;Live-time
Issue Date: Jun-2004
Publisher: NISCAIR-CSIR, India
IPC Code: H 03 B
Abstract: Low noise microwave oscillators and novel techniques of reducing the close in noise in these oscillators by using a high Q cavity as a frequency discriminator have been presented. In essence the discriminator converts noiseinduced frequency fluctuations into corresponding phase variations of a signal reflected from it. An accurate model for the noise floor of the cavity discriminator has been described. The noise cancellation depends on factors such as— the cavity Q, microwave power into the cavity, the input coupling coefficient and the level of carrier suppression. Experimental results indicate reasonably good agreement with the model.
Page(s): 459-464
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(06) [June 2004]

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