this is IQ modulator simulation and first create a sine wave 50 MHz and Sine/cosine 20 MHz.after product sine 20 to sine 50 and cosine 20 to sine 50 that create I and Q signal.-this is IQ modulator simulation and first create a sine wave 50 MHz and Sine/cosine 20 MHz.after product sine 20 to sine 50 and cosine 20 to sine 50 that create I and Q signal.