Which transistor I can used to design the amplifier with this specifications:
Gain of 20dB at centre frequency
Centre frequency of 600 MHz
Noise figure: 5 dB
Fractional bandwidth 0.1
input and output impendance: 75 ohms
The device stability shall be quaranteed over the entireload and frequency range
the NEC3210S01 is a microwave one , he want to design a 600 MHz transistor , i recommend u one of NXP BJT low noise transistors u can get a very good LNA with them in this range