官方淘宝店 易迪拓培训 旧站入口
首页 > 仿真设计 > 射频仿真设计学习 > 关于ADS中函数unwrap(),不懂它的用途

关于ADS中函数unwrap(),不懂它的用途

05-08
ADS中有函数unwrap函数应该怎么解释,它有个帮助文档,但是没有看懂,哪位大哥大姐有谁能够通俗的解释一下!最好能举个例子。谢谢了!

unwrap is usually use on the phase of S-parameters. Say if you measure a transmission line over frequency, the phase of S21 goes from 0 to +180, then jumps to -180 and goes to +180, etc. If you use unwrap, the phase of S21 will goes from 0 to 360 and up.
why they want to unwrap the phase? probably to calculate the group delay. If there is a jump in phase, then the group delay will jump everytime it switches from +180 to -180.

谢谢楼上的回复!

相位连接
相位连接
相位连接
相位连接

Top