タイトル | Microwave Frequency Discriminator With Sapphire Resonator |
著者(英) | Dick, G. John; Santiago, David G. |
著者所属(英) | Jet Propulsion Lab., California Inst. of Tech. |
発行日 | 1994-11-01 |
言語 | eng |
内容記述 | Cooled sapphire resonator provides ultralow phase noise. Apparatus comprises microwave oscillator operating at nominal frequency of about 8.1 GHz, plus frequency-discriminator circuit measuring phase fluctuations of oscillator output. One outstanding feature of frequency discriminator is sapphire resonator serving as phase reference. Sapphire resonator is dielectric ring resonator operating in "whispering-gallery" mode. Functions at room temperature, but for better performance, typically cooled to operating temperature of about 80 K. Similar resonator described in "Sapphire Ring Resonator for Microwave Oscillator" (NPO-18082). |
NASA分類 | ELECTRONIC COMPONENTS AND CIRCUITS |
レポートNO | 94B10614 NPO-18934 |
権利 | No Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/312986 |