A x2 coupled Colpitt VCO with ultra low phase noise
A x2 coupled Colpitt VCO with ultra low phase noise
复制标题
具有超低相位噪声的 x2 耦合 Colpitt VCO
DOI：
10.1109/csics.2004.1392520
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
M. Ferndahl
中科院分区：
文献类型：
--
作者：
H. Zirath;R. Kozhuharov;M. Ferndahl
一个耦合的Colpitt压控振荡器，优化超低相位噪声的设计，制造和特点。通过最大化储能电压的幅度和储能电路的Q值、优化集电极电流波形以及最小化VCO的负载来最小化相位噪声。VCO工作频率为13 GHz，最小相位噪声为-120 dBc@100 kHz。在比较工作于不同频率的VCO时，如果考虑到倍频的6 dB/倍频程斜率，这是迄今为止报告的具有完全集成谐振电路的VCO的最低相位噪声。
A coupled Colpitt voltage controlled oscillator, optimized for ultra low phase noise has been designed, fabricated, and characterized. The phase noise is minimized by maximizing the amplitude of the tankvoltage and the Q-value of the tank, optimizing the collector current waveform, and minimizing the loading of the VCO. The VCO works at 13 GHz, the minimum measured phase noise is -120 dBc@100 kHz. This is the lowest reported phase noise to date for a VCO with a fully integrated tank if the 6 dB/octave slope for frequency multiplication is taken into account when comparing VCOs working at different frequencies.