The genesis of SIS mixers - the legacy of John Tucker in radio astronomy
The genesis of SIS mixers - the legacy of John Tucker in radio astronomy
复制标题
SIS 混频器的起源 - 约翰·塔克 (John Tucker) 在射电天文学领域的遗产
DOI:
10.1109/mwsym.2015.7166809
复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
W. G. Lyons
中科院分区:
文献类型:
--
作者:
A. Kerr;S. Pan;W. G. Lyons
In 1979, John Tucker showed that if the nonlinearity of a mixer diode is so sharp that its conductance changes significantly over a voltage increment hf/e, then its mixer characteristics are no longer described by classical mixer theory (e.g, as normally used for Schottky diode mixers). Under these conditions a resistive diode mixer can have conversion gain and/or negative port impedances. Tucker's quantum mixer theory provided the theoretical foundation for a revolution in low-noise coherent receivers for radio astronomy in the millimeter and sub-millimeter bands.