発振器の低位相雑音化技術の動向

概要

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This paper is discussed the trend of technology to be achieved the low phase noise in the oscillator in recent years. The oscillator is generally designed to satisfy the oscillation condition, as the gain of the amplifier more than the loss of the feedback circuit. However, we have not understood which type of configuration of oscillator circuit is better for the extremely low phase noise.In this paper, we have discussed on a configuration of oscillator circuit to obtain the extremely low phase noise, as refer to an idea of Noise Figure in the amplifier circuits. We have proposed an oscillator circuit operating at a non-reactive frequency of SAW resonator, called as Fr oscillator, in a point of view as to be achieved an extremely low phase noise. Moreover, we have discussed on the signal processing technique to obtain the extremely low phase noise.
社団法人電気学会の論文
2003-08-01