Local oscillator development for focal plane array and supra-THz astronomy receivers
Local oscillator development for focal plane array and supra-THz astronomy receivers
复制标题
DOI：
10.1117/12.2056792
复制
发表时间：
2014-07
期刊：
影响因子：
--
通讯作者：
M. Henry;B. Ellison;Pawala Aryathilaka;N. Brewster;P. Huggard;G. Yassin;S. Withington;D. Maier
中科院分区：
文献类型：
--
作者：
M. Henry;B. Ellison;Pawala Aryathilaka;N. Brewster;P. Huggard;G. Yassin;S. Withington;D. Maier
用于天文研究的超灵敏超导隧道结外差接收器需要相对较低的本地振荡器(LO)功率。然而，当被配置为成像阵列时，所需的LO功率显著增加，并且向多个像素元件提供和分配和谐产生的LO信号在技术上变得具有挑战性。此外，随着工作频率增加到超太赫兹区域(<；1太赫兹)，产生LO功率的困难也变得更加复杂。我们将介绍我们的研究计划，旨在提供未来的太赫兹天文接收器，在其中，我们一直在开发增强型谐波上转换LO技术。
Ultra-sensitive superconducting tunnel junction heterodyne receivers used for astronomy research require relatively low levels of local oscillator (LO) power. When configured as an imaging array, however, the LO power required substantially increases and the provision and distribution of a harmonically generated LO signal to multiple pixel elements becomes a technically challenging task. Furthermore, the difficulty of generating LO power is compounded as the operational frequency is increased into the supra-THz region (<1 THz). We will present our programme of research directed towards the provision of future THz astronomy receivers, in which we have been pursuing the development of enhanced harmonic up-conversion LO technology.