Ultralow temperature low noise amplification apparatus
    4.
    发明申请
    Ultralow temperature low noise amplification apparatus 审中-公开
    超低温低噪声放大装置

    公开(公告)号:US20050128025A1

    公开(公告)日:2005-06-16

    申请号:US10968349

    申请日:2004-10-20

    摘要: An ultralow-temperature low-noise amplification apparatus of high sensitivity which realizes a small size, a light weight, a low electric power consumption and a low price. As the insertion loss caused by high-frequency cables and a superconducting filter installed as a first signal transmitting device before a first-stage amplifier is most responsible for any increase in the noise figure of the ultralow-temperature low-noise amplification apparatus as a whole, they are formed from a material causing only a small insertion loss to reduce the noise figure of the apparatus effectively. A high-frequency cable forming a third signal transmitting device not affecting the noise figure of the apparatus substantially is formed from a material of low thermal conductivity, so that it is possible to prevent any external heat from entering a heat-insulating container through an output connector to hold the interior of the container steadily at a low temperature and thereby keep the noise figure of the apparatus at a low level.

    摘要翻译: 具有高灵敏度的超低温低噪声放大装置,实现体积小,重量轻,功耗低,价格低廉。 由于高频电缆引入的插入损耗和在第一级放大器之前安装作为第一信号传输装置的超导滤波器对于超低温低噪声放大装置的整体噪声系数的任何增加而言是最重要的 它们由仅引起小的插入损耗的材料形成,以有效地降低设备的噪声系数。 形成不影响设备的噪声系数的第三信号传输装置的高频电缆基本上由导热性低的材料形成,使得可以防止外部热量通过输出进入绝热容器 连接器,以在低温下稳定地保持容器的内部,从而将设备的噪声系数保持在低水平。