Here is the work from the polyphase filters, which are all-pass filters and only modify the stage. The phase connection amongst the two polyphase filters in this example is these kinds of that it's going to compensate for that extra "twist" so that the phase among the specified very low https://girlspgingurugramsector14.blogspot.com/2025/07/book-spacious-boys-pg-in-sector-15-part.html