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Design rules for low-insertion-loss magnonic transducers.
Róbert Erdélyi1,2, Gyorgy Csaba1,2, Levente Maucha1,2
1Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary.
Scientific Reports
|March 22, 2025
Summary
We developed a computational framework to design efficient magnonic transducers for generating and detecting spin-wave signals. Our validated model achieved a record low 5 dB insertion loss, showing potential for competitive radio frequency applications.
Area of Science:
- Physics
- Materials Science
- Electrical Engineering
Background:
- Magnonic devices offer potential for novel signal processing and RF applications.
- Efficient conversion between electrical and spin-wave signals is crucial for device performance.
Purpose of the Study:
- To present a computational framework for designing magnonic transducers.
- To optimize transduction efficiency and minimize insertion loss in spin-wave devices.
Main Methods:
- Combining circuit-level models with micromagnetic simulations.
- Validating the computational model with experimental measurements.
- Analyzing scattering parameters and antenna radiation resistance.
Main Results:
- The framework accurately predicts system performance, validated by experimental data.
- Identified scaling rules for antenna radiation resistance.
- Achieved a 5 dB insertion loss in a 100 MHz band for a YIG transducer pair.
Conclusions:
- The developed framework enables efficient design of magnonic transducers.
- Magnonic devices demonstrate high efficiency and competitiveness in RF applications.
- The results pave the way for advanced spin-wave based technologies.
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