互易性一端口网络等效阻抗的灵敏度分析

Sensitivity Analysis of Equivalent Impedance for Reciprocal One-port Network

本文研究了互易性一端口网络等效阻抗对元件参数的灵敏度分析。利用互易二端口的T形等效电路,建立了等效阻抗对电阻、电感和电容的灵敏度公式。只需计算在单位电流源相量激励下的元件电流或电压,再计算这些相量的平方或乘积,便可得到严格的灵敏度。由此也为相量的平方,以及电压相量与电流相量之积找到了理论价值。

The sensitivities of equivalent impedance to the element parameters for the reciprocal one-port are researched in this paper. Making use of the T-type equivalent circuit of the reciprocal two-port network, the sensitivity formulas of the equivalent impedance to resistance, inductance and capacitance are obtained, respectively. All the sensitivities can be calculated strictly by the square of the current phasor or the voltage phasor of the elements,or by their multiplications, just when the unit current source phasor is supplied to the one-port. Therefore, the the-oretical values of the phasor squares and phasor muhiplications of the current and the voltage can be found.