The MRF19090 from NXP Semiconductors is a RF Transistor with Frequency 1930 to 1990 MHz, Gain 11.5 dB at 11.5 MHz, Power 90 W, P1dB 90 W, Supply Voltage 26 V. More details for MRF19090 can be seen below.
450 Watt, 50 Volt, 3.1 to 3.5 GHz, GaN RF IMFET
15 Watt, 50 Volt, DC to 4 GHz, GaN RF Transistor
15W, 300 MHz to 1.215 GHz, GaN RF Input-Matched Transistor
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