An s-band parametric amplifier using a balanced idler circuit

The paper describes the performance of an S-band parametric amplifier pumped at J-band using a balanced idler technique where two varactor diodes are incorporated in one encapsulation. It is shown that this technique produces a simple amplifier where the idler and signal circuits can be considered to be completely separate.Effects produced by operating the amplifier at frequencies where the circuits are not at resonance are also discussed.