Title :
A method to reduce the frequency fluctuation in a phase-shift transistor oscillator
Author :
Takagi, Keiji ; Serikawa, Seiichi ; Kawabe, Jun-ichi
Author_Institution :
Fac. of Eng., Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
The frequency and current fluctuations, and their correlation were measured in a phase shift transistor oscillator. The spectra are of 1/f type and both are correlated. A demonstration was carried out to reduce the frequency fluctuation, and a useful method to reduce the fluctuation is proposed in an oscillator.
Keywords :
1/f noise; bipolar transistor circuits; current fluctuations; feedback oscillators; fluctuations; frequency stability; phase shifters; 1/f spectra; correlation; current fluctuation; frequency fluctuation; phase-shift transistor oscillator; Current measurement; Fluctuations; Frequency measurement; Low-frequency noise; Oscillators; Phase measurement; Phase noise; Phase shifters; Pulse measurements; Semiconductor device noise;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
