Parametric Energy Conversion by Nonlinear Admittances
Parametric Energy Conversion by Nonlinear Admittances
复制标题
通过非线性导纳进行参数能量转换
DOI：
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发表时间：
1962
期刊：
影响因子：
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通讯作者：
R. Engelbrecht
中科院分区：
文献类型：
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作者：
R. Engelbrecht
非线性电阻(NR)和非线性电容(NC)元件的组合用于参数频率转换，显示了获得纯NR或纯NC网络中不存在的非互易特性的前景。本文讨论由单个NR元件串联或并联与单个NC元件组成的最简单的NR-NC组合。当NR和NC元件在时间上被“泵浦”时，这种电路能够在反相和非反相情况下产生无条件稳定的上转换增益，大大超过输出-输入频率比。同时，在一个频率下，下转换损耗可以是无穷大的，并且在一段频率上大大超过上转换增益。对于理想的NR和NC元件，具有无条件稳定性(|下转换损耗|≥|上转换增益|)的反向或非反向边带的最大可用上转换增益接近输出与输入频率比的平方。
The combination of nonlinear resistance (NR) and nonlinear capacitance (NC) elements for parametric frequency conversion shows promise for obtaining nonreciprocal features not present in pure NR or pure NC networks. This paper treats the simplest NR-NC combinations consisting of a single NR element connected either in series or in parallel with a single NC element. When the NR and NC elements are "pumped" in time quadrature, such circuits are capable of yielding unconditionally stable up-conversion gains, for both the inverting and noninverting case, considerably in excess of the output-to-input frequency ratios. Simultaneously, the down-conversion loss can be made infinite at one frequency and considerably in excess of the up-conversion gain over a band of frequencies. With ideal NR and NC elements, the maximum available up-conversion gain to either an inverted or noninverted sideband with unconditional stability (|down-conversion loss|≥|up-conversion gain|) approaches the square of the output-to-input frequency ratio.