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
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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
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发表时间:
2015
期刊:
2015 IEEE MTT-S International Microwave Symposium
影响因子:
--
通讯作者:
W. G. Lyons
W. G. Lyons
中科院分区:
--
文献类型:
--
作者:
A. Kerr;S. Pan;W. G. Lyons

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在1979年,John Tucker指出,如果一个混频器二极管的非线性如此尖锐,以至于它的电导在一个电压增量hf/e上发生显著变化,那么它的混频器特性不再由经典混频器理论描述(例如,通常用于肖特基二极管混频器)。在这些条件下,阻性二极管混频器可以具有转换增益和/或负端口阻抗。塔克的量子混频器理论为毫米和亚毫米波段射电天文学的低噪声相干接收机革命提供了理论基础。
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.