A L-band Active Cold Noise Source for Radiometer Calibration

	A L-band Active Cold Noise Source for Radiometer Calibration
	Duan, Yongqiang; Wang, ZhenZhan
	2017
会议日期	OCT 22-25, 2017
会议地点	Xiamen, PEOPLES R CHINA
关键词	Acns Radiometer Calibration Noise Temperature
英文摘要	For application in radiometer calibration, a L-band(1400-1430N1Hz) active cold noise source(ACNS) is designed. A hybrid circuit has been realized with a Pseudomorphic High Electron Mobility Transistor(pHEMT), lumped elements and microstrip transmission lines. At ambient temperature, the ACNS exhibits an excellent noise temperature of only 68.7 K, a return loss higher than 25 dB and a negative temperature sensitivity of-1.64 KiC in the 1400-1430 MHz frequency range.
会议录	2017 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (ICSPCC)
语种	英语
ISBN号	978-1-5386-3142-3
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/6271]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Duan, Yongqiang,Wang, ZhenZhan. A L-band Active Cold Noise Source for Radiometer Calibration[C]. 见:. Xiamen, PEOPLES R CHINA. OCT 22-25, 2017.