PSS仿真中使用shooting和harmonic balance方法的区别

122215386

远上寒杉 发表于 2020-8-22 11:24
参考：Tip of the Week: When should I use the pss/qpss Harmonic Balance vs. Shooting Newton Engine? ( ...

就很有用

JennniferHo

根据楼里大神总结：
参考：Tip of the Week: When should I use the pss/qpss Harmonic Balance vs. Shooting Newton Engine? (https://community.cadence.com/ca ... oting-newton-engine)

Use harmonic balance for:
    High dynamic range, weakly-nonlinear systems
        RF front-ends (LNA, Mixer)
        IQ modulators
    Mildly nonlinear oscillators with resonators, such as
        LC oscillators
        Crystal oscillators
        Negative-gain oscillators
    Circuits with distributed components
        Transmission lines
        S-parameter models

Use shooting Newton for:
    Circuits where input signals have sharp transitions
    Strongly nonlinear circuits
        Frequency dividers
        Strongly-nonlinear resonatorless oscillators, such as
            Ring oscillators,
            Relaxation oscillators,
            Oscillators containing digital control components,
            Oscillators with dividers.

简而言之就是偏线性、正弦的用HB，偏logic、方波的用shooting。
shooting的特点是收敛性好，hb的特点是快，所以不适合用hb的时候就用shooting。

sumiqin

JennniferHo 发表于 2022-6-27 17:15
根据楼里大神总结：
参考：Tip of the Week: When should I use the pss/qpss Harmonic Balance vs. Shooti ...

你好想请教一下，就是晶振电路，但是想看晶振整形后的方波的信号，这个时候是否选shooting更合适呢？
如果是想看晶振的expin的信号（正弦波）就选HB更合适？

lihanzhijiao

学到了，谢谢大神