Broadband 230 GHz finline mixer for astronomical imaging arrays
Broadband 230 GHz finline mixer for astronomical imaging arrays
复制标题
用于天文成像阵列的宽带 230 GHz 鳍线混频器
DOI：
10.1049/el:19970314
复制
发表时间：
1997
影响因子：
1.1
通讯作者：
S. Wulff
中科院分区：
文献类型：
--
作者：
G. Yassin;R. Padman;S. Withington;K. Jacobs;S. Wulff
作者报告了在230 GHz的对跖鳍线准粒子SIS混频器的成功操作。混频器由波导对角喇叭馈电，采用平面电路技术和集成调谐。混频器在213-265 GHz的频率范围内进行了测试，并在整个范围内获得了~60 K DSB的接收机噪声温度。这项工作表明，超导鳍线混频器具有低噪声，易于制造，因此适用于大幅面成像阵列。
The authors report the successful operation of an antipodal finline quasi-particle SIS mixer at 230 GHz. The mixer is fed by a waveguide diagonal horn and uses planar circuit technology and integrated tuning. The mixer is tested over the frequency range 213–265 GHz and a receiver noise temperature of ~60 K DSB over the whole of this range is obtained. This work has shown that superconducting finline mixers have low noise and are easy to manufacture, and are therefore suitable for large-format imaging arrays.