How to shift a signal in simulink by 90 degrees?

I want to shift a signal by 90 degrees. there is a block called phase shift in RF blockset, but it cannot be used with simulink.

Answer 1

[Ir. Ts. Dr. Kah Yung Yap, CEng (UK)]

Dear Saleh Shlimet,

Hi, have you try by using Variable Phase Shift [1] or Complex Phase Shift [2]?

[1] https://www.mathworks.com/help/simrf/ref/variablephaseshift.html

[2] https://www.mathworks.com/help/comm/ref/complexphaseshift.html

[saleh shlimet]

yes but it does not work