(a)
(b)
(c)
Figure 6: (a) Schematic for the two-stage 15 GHz fully integrated GaN PA MMIC design ([26]); (b) Postlayout simulations on the PA’s -parameters; and (c) postlayout RF/digital cosimulated PA spectrum output with LTE 16 QAM 20 MHz input at 15 GHz. = = 28 V.