Coupled Micromachined Magnetic Resonators for Microwave Signal Processing

In this paper, the theory, micromachining technology, and experimental results of the coupling of integrated magnetic film-based resonators for microwave signal filtering are presented. This is an extended contribution to the field of magnetostatic wave coupled resonators, including details about th...

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Main Authors: Romolo Marcelli, Andrea Lucibello, Emanuela Proietti, Takuro Koike
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/15/2/259
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author Romolo Marcelli
Andrea Lucibello
Emanuela Proietti
Takuro Koike
author_facet Romolo Marcelli
Andrea Lucibello
Emanuela Proietti
Takuro Koike
author_sort Romolo Marcelli
collection DOAJ
description In this paper, the theory, micromachining technology, and experimental results of the coupling of integrated magnetic film-based resonators for microwave signal filtering are presented. This is an extended contribution to the field of magnetostatic wave coupled resonators, including details about the technological results, circuit theory, and perspective applications for tunable integrated coupled magnetic resonators. An analytical approach using the magnetostatic wave approximation is used to derive the coupling coefficient between adjacent resonators coupled by the electromagnetic field decaying outside the resonators. Then, micromachining employing hot phosphoric acid etching is presented to manufacture integrated coupled resonators. Finally, circuit modeling and experimental results obtained using the ferromagnetic resonance technique are discussed.
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spelling doaj.art-7e4baefcc20842f79bc9df396bbe5a492024-02-23T15:27:49ZengMDPI AGMicromachines2072-666X2024-02-0115225910.3390/mi15020259Coupled Micromachined Magnetic Resonators for Microwave Signal ProcessingRomolo Marcelli0Andrea Lucibello1Emanuela Proietti2Takuro Koike3Institute for Microelectronics and Microsystems (CNR-IMM), 00133 Rome, ItalyInstitute for Microelectronics and Microsystems (CNR-IMM), 00133 Rome, ItalyInstitute for Microelectronics and Microsystems (CNR-IMM), 00133 Rome, ItalyDepartment of Electronic Engineering, Tamagawa University, Machida, Tokyo 194-8610, JapanIn this paper, the theory, micromachining technology, and experimental results of the coupling of integrated magnetic film-based resonators for microwave signal filtering are presented. This is an extended contribution to the field of magnetostatic wave coupled resonators, including details about the technological results, circuit theory, and perspective applications for tunable integrated coupled magnetic resonators. An analytical approach using the magnetostatic wave approximation is used to derive the coupling coefficient between adjacent resonators coupled by the electromagnetic field decaying outside the resonators. Then, micromachining employing hot phosphoric acid etching is presented to manufacture integrated coupled resonators. Finally, circuit modeling and experimental results obtained using the ferromagnetic resonance technique are discussed.https://www.mdpi.com/2072-666X/15/2/259micromachiningmagnetostatic wavesresonatorsmicrowave filters
spellingShingle Romolo Marcelli
Andrea Lucibello
Emanuela Proietti
Takuro Koike
Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
Micromachines
micromachining
magnetostatic waves
resonators
microwave filters
title Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
title_full Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
title_fullStr Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
title_full_unstemmed Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
title_short Coupled Micromachined Magnetic Resonators for Microwave Signal Processing
title_sort coupled micromachined magnetic resonators for microwave signal processing
topic micromachining
magnetostatic waves
resonators
microwave filters
url https://www.mdpi.com/2072-666X/15/2/259
work_keys_str_mv AT romolomarcelli coupledmicromachinedmagneticresonatorsformicrowavesignalprocessing
AT andrealucibello coupledmicromachinedmagneticresonatorsformicrowavesignalprocessing
AT emanuelaproietti coupledmicromachinedmagneticresonatorsformicrowavesignalprocessing
AT takurokoike coupledmicromachinedmagneticresonatorsformicrowavesignalprocessing