Reviews of leeson model of oscillator phase noise. Issue 15 (1st July 2016)

• Record Type: Journal Article
• Authors: Huang, Xianhe; Hu, Jianguo; Bai, Qingsong; Tang, Yuanlin
• Is Part Of: Electronics letters. Volume 52:Issue 15(2016)
• Page Start: 1300
• Page End: 1302
• Publication Date: 2016-07-01
• Subjects: phase noise -- lithium compounds -- crystal oscillators; Leeson model -- oscillator phase noise -- high Q oscillators -- f0 curve segment -- f−1 curve segment -- low Q oscillators -- f−2 curve segment -- high Q quartz crystal oscillator -- low Q lithium tantalate oscillator -- frequency 80 MHz -- LiTaO3; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.1021
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Through theoretical deduction, two new explanations of Leeson model are presented: the corner frequency of high Q oscillators in the phase noise curve should be the frequency at the intersection of the f 0 curve segment after adding 3 dB and the f −1 curve segment; f 0 / 2 Q L of low Q oscillators in the phase noise curve should also be the frequency at the intersection of the f 0 curve segment after adding 3 dB and the f − 2 curve segment. Moreover, these two new explanations were verified by the experimental data of a reported 80 MHz high Q quartz crystal oscillator and a reported low Q lithium tantalate (LiTaO3 ) oscillator, respectively. The results could help researchers and engineers properly estimate the key parameters of oscillator phase noise.