Abstract
An electric field tunable yttrium iron garnet (YIG)-lead zirconate titanate (PZT) phase shifter based on ferromagnetic resonance (FMR) is designed and characterized. The electric field control of the phase shift δφ arises through magnetoelectric interactions. The piezoelectric deformation in PZT in an electric field E leads to a shift in the FMR frequency in YIG and a phase shift. For E=5–8kV∕cm applied across PZT, δφ=90°–180° and an insertion loss of 1.5–4dB are obtained. Theoretical estimates of δφ are in excellent agreement with the data.
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