To check, remove the power from the amplifier and see whether the problem goes away. There are three types of amplifier – masthead, set-back and distribution. All these need a power supply to work.

This letter presents a distributed amplifier (DA) monolithic microwave integrated circuit (MMIC) achieving a bandwidth (BW) of 4–420 GHz with a small-signal gain of 11 ± 2 dB. This sets a new BW ...

This paper describes the design and performance of a 200 W solid-state pulsed RF (radio frequency) power amplifier, operating in S-band at a duty cycle of 0.1% and with a pulse width of $10 \\mu ...