A WIDE-BAND FIXED-TUNED SIS RECEIVER FOR 200-GHZ OPERATION

被引:48
作者
BLUNDELL, R [1 ]
TONG, CYE [1 ]
PAPA, DC [1 ]
LEOMBRUNO, RL [1 ]
ZHANG, XL [1 ]
PAINE, S [1 ]
STERN, JA [1 ]
LEDUC, HG [1 ]
BUMBLE, B [1 ]
机构
[1] CALTECH,JET PROP LAB,CTR SPACE MICROELECTR TECHNOL,PASADENA,CA 91109
关键词
D O I
10.1109/22.375257
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report on the design and development of a heterodyne receiver, designed to cover the frequency range 176-256 GHz. This receiver incorporates a niobium superconductor-insulator-superconductor (SIS) tunnel junction mixer, which, chiefly for reasons of reliability and ease of operation, is a fixed-tuned waveguide design, On-chip tuning is provided to resonate out the junction's geometric capacitance and produce a good match to the waveguide circuit, Laboratory measurements on the first test receiver indicate that the required input bandwidth (about 40%) is achieved with an average receiver noise temperature of below 50 K, Mixer conversion gain is observed at some frequencies, and the lowest measured receiver noise is less than 30 K, Furthermore, the SIS mixer used in this receiver is of simple construction, is easy to assemble and is therefore a good candidate for duplication.
引用
收藏
页码:933 / 937
页数:5
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