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首页> 外文期刊>Radiophysics and quantum electronics >HOT-ELECTRON BOLOMETER MIXERS WITH IN SITU CONTACTS
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HOT-ELECTRON BOLOMETER MIXERS WITH IN SITU CONTACTS

机译：具有原位接触的热电子混合器

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摘要

We report on the latest achievements in the development of superconducting hot-electron bolometer (HEB) mixers for terahertz superheterodyne receivers. We consider application ranges of such receivers and requirements for the basic characteristics of the mixers. Main features of the mixers, such as noise temperature, gain bandwidth, noise bandwidth, and required local-oscillator power, have been improved significantly over the past few years due to intense research work, both in terms of the element fabrication quality and in terms of understanding of the physics of the processes occurring in the HEB mixers. Contacts between the superconducting bridge and the planar antenna play a key role in the mixer operation. Improvement of the quality of the contacts leads simultaneously to a decrease in the noise temperature and an increase in the gain bandwidth of a mixer.
机译：我们报告了用于太赫兹超外差接收器的超导热电子辐射热计（HEB）混合器开发的最新成果。我们考虑了此类接收器的应用范围以及对混频器基本特性的要求。在过去的几年中，由于进行了大量的研究工作，无论在元件制造质量还是在元件方面，混频器的主要特性（例如噪声温度，增益带宽，噪声带宽和所需的本地振荡器功率）都得到了显着改善。了解HEB混合器中发生的过程的物理原理。超导电桥和平面天线之间的接触在混频器工作中起着关键作用。触点质量的提高同时导致噪声温度的降低和混频器增益带宽的增加。

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