A Distributed Magnetostatic Resonator

Connor Devitt; Sudhanshu Tiwari; Sunil A. Bhave; Renyuan Wang

doi:10.1109/TMTT.2024.3381549

A Distributed Magnetostatic Resonator

Applied Physics 2024-04-15 v1

Authors: Connor Devitt , Sudhanshu Tiwari , Sunil A. Bhave , Renyuan Wang

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Abstract

This work reports the design, fabrication, and characterization of coupling-enhanced magnetostatic forward volume wave resonators with significant spur suppression. The fabrication is based on surface micro-machining of yttrium iron garnet (YIG) film on a gadolinium gallium garnet (GGG) substrate with thick gold transducers. A distributed resonator is used to excite forward volume waves in YIG to realize a frequency dependent coupling boost. Fabricated devices at 18 GHz and 7 GHz show coupling coefficients as high as 13 $\%$ and quality factors above 1000. Higher-order magnetostatic mode suppression is experimentally demonstrated through a combination of transducer and YIG geometry design. An edge-coupling filter topology is proposed and simulated which utilizes this novel distributed magnetostatic resonator.

Keywords

microwave resonators high quality factor resonators optical waveguides

Cite

@article{arxiv.2401.08911,
  title  = {A Distributed Magnetostatic Resonator},
  author = {Connor Devitt and Sudhanshu Tiwari and Sunil A. Bhave and Renyuan Wang},
  journal= {arXiv preprint arXiv:2401.08911},
  year   = {2024}
}

A Distributed Magnetostatic Resonator

Abstract

Keywords

Cite

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