As Demonstrated in Determine 12-sixteen, an average touring-wave amplifier employs a multi­stage very low-go filter, consisting of both a transmission line or lumped inductances, with suitably pumped shunt varactor diodes supplying the shunt capacitances. The sign and pump frequencies are applied with the enter stop of your circuit, as well https://rf.vllis.com/en/product-category/narrowband-amplifier