A Fixed-Frequency, Tunable Dielectric Resonator Oscillator With Phase-Locked Loop Stabilization
A Fixed-Frequency, Tunable Dielectric Resonator Oscillator With Phase-Locked Loop Stabilization
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具有锁相环稳定性的固定频率、可调谐介质谐振器
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
T. Musch
中科院分区：
文献类型：
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作者：
Robin Kaesbach;M. van Delden;T. Musch
用于微波测量系统的高稳定性振荡器要求具有出色的长期和短期稳定性。介质谐振器振荡器（DRO）提供了高性能和简单结构的独特组合。它的漂移和噪声已经很低，但可以通过锁相环稳定进一步降低。在这项工作中，提出了一种低成本DRO概念的设计和测量，在10 kHz偏移频率和12.8 GHz输出频率下相位噪声为−107.2 dBc/Hz。电子控制环路降低了振荡器的漂移和相位噪声，从而实现了29 fs的极低抖动。
Highly stable oscillators used for microwave measurement systems require both excellent long-term and short-term stability. The dielectric resonator oscillator (DRO) offers a unique combination of high performance and simple construction. Its drift and noise are already comparably low, but can be further reduced by phase-locked loop stabilization. In this work, the design and measurement of a low-cost DRO concept with a phase noise of −107.2 dBc/Hz at 10 kHz offset frequency and 12.8 GHz output frequency is presented. An electronic control loop reduces drift and phase noise of the oscillator resulting in a very low jitter of 29 fs.