Design of push-push and triple-push oscillators for reducing 1/f noise upconversion
Design of push-push and triple-push oscillators for reducing 1/f noise upconversion
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用于降低 1/f 噪声上变频的双推和三推振荡器设计
DOI：
10.1109/tmtt.2005.858382
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发表时间：
2005
影响因子：
4.3
通讯作者：
A. Mortazawi
中科院分区：
文献类型：
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作者：
Jonghoon Choi;A. Mortazawi
本文研究了推-推和三推振荡器中的1/f噪声上转换，提出了最小化1/f噪声上转换的设计要求。在推-推振荡器中，大的二次谐波分量的存在可能降低振荡波形的波形对称性，导致显著的1/f噪声上变频。为了最小化推-推振荡器中的1/f噪声上变频，所有谐波的傅立叶系数的相位需要相等。在三重推动振荡器中，通过消除所有偶次谐波分量可以轻松实现波形对称性。实验结果表明，在100 kHz的偏移频率，约15 dB的相位噪声的改善，可以通过满足波形对称性条件，在推推和三推振荡器。
In this paper, 1/f noise upconversion in push-push and triple-push oscillators is studied, and the design requirements for minimizing 1/f noise upconversion are presented. In push-push oscillators, the presence of the large second harmonic components may degrade the waveform symmetry of the oscillation waveforms, leading to the significant 1/f noise upconversion. To minimize 1/f noise upconversion in push-push oscillators, the phases of Fourier coefficients of all harmonics need to be equal. In triple-push oscillators, the waveform symmetry can easily be achieved by eliminating all even harmonic components. The experimental results show that around 15-dB phase-noise improvement at 100-kHz offset frequency can be obtained by satisfying the waveform symmetry condition in push-push and triple-push oscillators.
相位角肌肉质量评价及青少年体质实测
DOI：
--
发表时间：
2021
期刊：
影响因子：
--
作者：
Nakajima Hisakazu;Kodo Kazuki;小山憲一郎 穴繁結奈;日下部徹
通讯作者：
日下部徹