【摘要】 研制出了超低相位噪声压控振荡器,在保证调谐范围的前提下,采取各种措施有效降低了压控振荡器的相位噪声。设计的压控振荡器采用普通环氧板材,表面贴装工艺,国际标准封装,成本低、人工调试量小,适合规模生产。结果表明该产品的频率为796~857 MHz,调谐带宽61 MHz,调谐电压1.8~4.5 V,调谐灵敏度22.5 MHz/V,相位噪声达到-115 dBc/Hz@10 kHz,产品已达到国际各大同类产品的水平。更多还原

【Abstract】 Ultra low phase noise VCO was manufactured,ensuring the tuning range,the phase noise of VCO was reduced effectively with various measures.The VCO with general epoxy plate is made by surface-mount technology and the international standard package method.The VCO has the advantages of low cost and less adjusting work,it is suitable for mass production.The results show that the frequency range is 796～857 MHz,the tuning bandwidth is 61 MHz,the tuning voltage is from 1.8 to 4.5 V,the tuning sensitivity is 22.5 MHz/V,the phase noise is-115 dBc/Hz@10 kHz.The products reach the international level of similar products.更多还原