用单位增益缓冲器构成的开关电容滤波器（SCF），若能消除寄生电容引起的“阻性”寄生，则可用于高频设计，总寄生灵敏度会因此大大降低。
The unity gain buffer will be good for designing high frequency SCF if its resistive effect can be eliminated and then the overall parasitic sensitivity will be greatly lowered.
稳定电路或不稳定电路可用电路变量相对于平衡解的初期量变趋势来解释，而由反馈增益加以判断。
A stable or unstable circuit can be explained with the tendency of initial variation of circuit variables relative to the equilibrium solution, and can be discriminated on the feedback gain.
特别是在移动台低速移动，而信道可用径较少的环境下，发送分集技术可以获得相当可观的性能增益。
Transmission diversity can achieve a considerable performance gain especially in the channel that lacks of available paths.
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