Cavity Magnonic Injection Locking Amplifier

This work presents an improved design for a cavity magnonic injection locking amplifier (ILA) aimed at expanding its lock range.The design incorporates a two-stage system, consisting of a pre-amplification oscillator and a cavity magnonic oscillator, separatedby an isolator to prevent backward locking. By optimizing the circuit parameters of each stage, the proposed design achieved anorder of magnitude increase in lock range compared to its predecessors, all while preserving the phase noise quality of the input,making it ideal for narrowband, sensitive signal amplifications. Design challenges related to the complexity and size of the two-stagesystem are also addressed.