I am simulating a Power amplifier design and my input is an envelope modulated signal with a sampling frequency 92.16 MHz. while using envelope simulation the "TIme Step too small" error is coming. And it is taking too much time to simulation if i reduce the sampling frequency to 92.16 * 10^4 Hz.
How i can solve this problem. Is there any other method to do fast envelope simulation for RF power amplifier.