I'm designing an amplifier at 4.2 GHz using MGA-72543 amplifier chip. I need several capacitors (from 22pF to 1000pF) for biasing circuit. Can you recommend a manufacturer that will work in this band? I attach the datasheet of the chip ( it includes the biasing circuit) if needed.
Maybe I asked wrong. There are many manufacturers but in order to work at 4.2 GHz properly which serie of them should I choose? For example should I choose the one whose series resonance frequency is above 4.2GHz?