DocumentCode :
3095751
Title :
A 220 GHz low noise superconducting receiver with wide instantaneous operating bandwidth
Author :
Chih-Chiang Han ; Ming-Jye Wang ; Tse-Jun Chen ; Wei-Chun Lu ; Tong, Cheuk-yu Edward
Author_Institution :
Acad. Sinica Inst. of Astron. & Astrophys., Taipei, Taiwan
fYear :
2012
fDate :
4-7 Dec. 2012
Firstpage :
427
Lastpage :
429
Abstract :
A 220 GHz mixer chip based on a 3-junction series distributed superconducting mixer has been developed. This mixer employs a design, which minimizes the output capacitances, such that it can offer a wide instantaneous bandwidth of up to 12 GHz. We have incorporated this mixer into a receiver package and a dedicated automatic test bench has been developed to characterize its performance. The receiver demonstrates ultra low noise temperature, as low as 32 K, or 3 hν/k. The measured noise temperature remains below 50 K beyond 10 GHz IF.
Keywords :
millimetre wave mixers; millimetre wave receivers; superconducting mixers; 3-junction series; automatic test bench; distributed superconducting mixer; frequency 220 GHz; low noise superconducting receiver; mixer chip; receiver package; ultra low noise temperature; wide instantaneous operating bandwidth; Bandwidth; Junctions; Mixers; Noise; Receivers; Temperature measurement; Temperature sensors; Superconducting device noise; mixers; radio astronomy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
Type :
conf
DOI :
10.1109/APMC.2012.6421620
Filename :
6421620
Link To Document :
بازگشت