Two-Tone IMD3 and IMD5 Models of Weakly Nonlinear GaN Amplifier for Tx-Rx Microwave and Millimeter-Wave Systems. - Li, Jiahao; Wan, Fayu; Wan, Junkun; Gurgel, Nathan B.; Lallechere, Sébastien; Waldhoff, Nicolas; Kholodnyak, Dmitry; Fontgalland, Glauco; Ravelo, Blaise (Progress in Electromagnetics Research C, 2026)