2[7]BENEDIKT J,GADDI R.TASKER P J.High-power timedomain measurement system with active harmonic loadpull for high-efficiency base-station amplifier design.Microwave Theory and Techniques[J],IEEE Transactions on,2000,48(10):2617-2624
3[8]Steve C.Cripps.RF Power Amplifiers for Wireless Communications ISBN:0890069891