【摘要】 体效应振荡器相位噪声主要决定于体效应管的噪声。文中介绍了Ku波段低相位噪声体效应管的设计与工艺实现 ,并制作出了与设计结果基本一致的器件。该器件在Ku波段高端输出功率大于 15 0mW ,转换效率大于 5 %。将其安装于低相噪介质振荡器中 ,在保证一定的输出功率的情况下 ,相位噪声小于 - 98dBc/Hz(偏离载频为 5kHz时 ) ,- 10dB谱线宽度小于 2 0 0Hz更多还原

【Abstract】 The phase noise of Gunn oscillator is determined mainly by the characteristics of the noise of Gunn diode.This paper describes the design and implementation of GaAs Gunn diodes of low phase noise at Ku band. The design shows good agreement with experimental results. The minimum output power is more than 150 mW high end of at Ku band using a test cavity, and the efficiency of conversion is more than 5%. The best level of low phase noise oscillator achieved is -98 dBc/Hz/(for 5 kHz) with a practical cavity, for a specified level of output power.更多还原