RF Signal Processing with Magneto-acoustic Devices

We present advancements in novel rf signal processing techniques which combine the benefits of high-Q, high-linearity, and large dynamic range of acoustic wave devices with the tunability and nonlinear functionality of spin wave devices. The design and implementation of two such magneto-acoustic devices, a tunable high-overtone bulk acoustic resonator (HBAR) and a rf signal correlator are discussed. The devices are implemented on yttrium iron garnet (YIG), chosen for its low damping of both spin and acoustic waves and magnetoelastic properties for coupling them.