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本文介绍了一种工作于Ku波段高端的低相噪、抗过载介质振荡器的设计,该介质振荡器通过力学分析联合场分析对谐振腔体进行综合优化,设计出高Q值、高机械强度的谐振腔,使得振荡器在RMS=10.65g且没有任何减振措施的条件下输出频谱顶端展宽不超过1KHz,相位噪声恶化小于2dBc/Hz@10KHz,且全频带内无杂波;设计创新的U形振荡电路结构,使得振荡电路面积相对于传统振荡电路减小50%、相位噪声优化10dB,在-55℃至+85℃的范围内相位噪声优于-87dBc/Hz@10kHz。
This paper presents a design of a low phase noise and anti-overload dielectric oscillator operating at the high-end of the Ku-band. The dielectric resonator optimizes the resonant cavity through the combination of mechanical analysis and field analysis to design a high-Q, high mechanical strength Of the resonator, so that the oscillator under the conditions of RMS = 10.65g and without any damping measures the top of the output spectrum broadening of not more than 1KHz, phase noise degradation of less than 2dBc / Hz @ 10KHz, and no clutter in the entire band; design innovation U-shaped oscillator circuit structure, making the oscillator circuit area relative to the traditional 50% reduction in phase noise, phase noise optimized 10dB, -55 ℃ to 85 ℃ in the range of better than -87dBc / Hz @ 10kHz.