Extremely Low Thermal Noise Floor, High Power Oscillators Using ...

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I. D. Avramov is with the Institute of Solid State Physics, 1784 Sofia. Bulgaria. F. L. Walls and T. E. Parker are with the National Institute of Standards ...... Ultrasonics and the Frequency Control Symposia, and was the Technical. Program Chair for the ... in Orlando, and the 1992 IEEE Ultrasonics Symposium in Tucson. He is.