|
|||||
|
|
High temperature super-conducting (HTS) C-band oscillator with phase noise of -134 dBc/Hz |
|
| Authors: | LI Hong HE Aisheng SHI Tiefeng GONG Zhonglin LI Shunzhou SUN Yongwei HE Yusheng |
| Institution: | (1) Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China;(2) North University of Technology, 100141 Beijing, China;(3) Beijing Institute of Radio Measurement, 100080 Beijing, China;(4) Department of Electronics, Peking University, 100871 Beijing, China;(5) Institute of Acoustics, Chinese Academy of Sciences, 100080 Beijing, China;(6) Chongqing University, 400044 Chongqing, China |
| Abstract: | A high Q HTS cavity resonator with resonating frequency fo = 5.624 GHz was fabricated using high quality HTS film and high purity sapphire. The unloaded quality factor of the HTS resonator was as high as Qt = 1.09×106 at the nitrogen temperature, 77 K. A HTS local oscillator combining the high Q cavity resonator with a C-band low noise GaAs HEMT amplifier was then designed and constructed.The phase noise of the oscillator, measured by a HP 3048A noise measurement system, is -134 dBc/Hz at 10 kHz offset when the temperature is 77 K. This result is close to the best level reported by other groups in the world. |
| Keywords: | HTS cavity resonator low phase noise HTS local oscillator |
| 本文献已被 万方数据 SpringerLink 等数据库收录！ | |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 | |