Magnetostatic surface wave straight-edge resonators

Chang, Kok Wai; Ishak, W.

doi:10.1007/bf01600080

Cited by 16 publications

(3 citation statements)

References 4 publications

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“…Previous studies have shown the dispersion relations for ferrimagnetic films with finite dimensions 52 . The finite film width of ferrimagnetic films introduces a multitude of propagating modes known as width modes 52 , 53 . MSSW propagate exclusively along the surfaces of the YIG film and undergo reflection to the other surface at the straight edges.…”

Section: Magnetostatic Wave Filter (Mswf)mentioning

confidence: 99%

Frequency tunable magnetostatic wave filters with zero static power magnetic biasing circuitry

Du,

Idjadi,

Ding

et al. 2024

Nat Commun

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A single tunable filter simplifies complexity, reduces insertion loss, and minimizes size compared to frequency switchable filter banks commonly used for radio frequency (RF) band selection. Magnetostatic wave (MSW) filters stand out for their wide, continuous frequency tuning and high-quality factor. However, MSW filters employing electromagnets for tuning consume excessive power and space, unsuitable for consumer wireless applications. Here, we demonstrate miniature and high selectivity MSW tunable filters with zero static power consumption, occupying less than 2 cc. The center frequency is continuously tunable from 3.4 GHz to 11.1 GHz via current pulses of sub-millisecond duration applied to a small and nonvolatile magnetic bias assembly. This assembly is limited in the area over which it can achieve a large and uniform magnetic field, necessitating filters realized from small resonant cavities micromachined in thin films of Yttrium Iron Garnet. Filter insertion loss of 3.2 dB to 5.1 dB and out-of-band third order input intercept point greater than 41 dBm are achieved. The filter’s broad frequency range, compact size, low insertion loss, high out-of-band linearity, and zero static power consumption are essential for protecting RF transceivers from interference, thus facilitating their use in mobile applications like IoT and 6 G networks.

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Section: Magnetostatic Wave Filter (Mswf)mentioning

confidence: 99%

Frequency tunable magnetostatic wave filters with zero static power magnetic biasing circuitry

Du,

Idjadi,

Ding

et al. 2024

Nat Commun

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show abstract

“…Wherein the frequency selectivity and waveguide properties of the device are achieved by creating a priority for wave propagating with certain k in magnonic crystals or SW confinements. [6][7][8] Extended in plane YIG films are grown by different techniques on gallium gadolinium substrates directly [9][10][11] or with copper interlayer. 12 In consequence, patterns of the required sizes are cut 13 or etched 14 from the film.…”

Section: Introductionmentioning

confidence: 99%

Perpendicularly magnetized YIG-film resonators and waveguides with high operating power

Balinskiy

Mongolov²,

Montes

et al. 2016

AIP Advances

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We propose a novel technique for building YIG film-based resonators and waveguides for high power operating microwave devices. Our approach is based on the effect of total internal reflection (TIR) at the interface between the non-metalized and metalized regions of YIG film, which take place for forward volume magnetostatic spin waves in perpendicularly magnetized YIG films. Prototype resonators and waveguides were designed, fabricated, and tested. The obtained experimental data demonstrate high quality factor of 50 dB and a high power operation up to +15 dBm in the frequency range from 1.8 GHz to 5.1 GHz. Application of such resonators and waveguides in electrically tunable microwave oscillators promises an extremely low phase noises about −135 dB/Hz at 10 kHz offset.

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“…The linear behavior was also reported in previous YIG cavity results. 38,43,55 To emphasize the localized magnon detection characteristic of the Pt strip, we normalize the spin-pumping voltage of the cavity strip, V c SP , between 0 and 1, based on the lowest and highest spin-pumping voltage value in each B-field scan. We centered the B-field scans with respect to the resonance field of the bulk YIG obtained from the FMR measurements, μ 0 H FMR , for each frequency.…”

mentioning

confidence: 99%

Magnon Confinement in an All-on-Chip YIG Cavity Resonator Using Hybrid YIG/Py Magnon Barriers

Santos,

van Wees

2023

Nano Lett.

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Confining magnons in cavities can introduce new functionalities to magnonic devices, enabling future magnonic structures to emulate the established photonic and electronic components. As a proof-of-concept, we report magnon confinement in a lithographically defined all-on-chip YIG cavity created between two YIG/Permalloy bilayers. We take advantage of the modified magnetic properties of the covered/uncovered YIG film to define on-chip distinct regions with boundaries capable of confining magnons. We confirm this by measuring multiple spinpumping voltage peaks in a 400 nm wide platinum strip placed along the center of the cavity. These peaks coincide with multiple spin-wave resonance modes calculated for a YIG slab with the corresponding geometry. The fabrication of micrometer-sized YIG cavities following this technique represents a new approach to control coherent magnons, while the spin-pumping voltage in a nanometer-sized Pt strip demonstrates to be a noninvasive local detector of the magnon resonance intensity.

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Magnetostatic surface wave straight-edge resonators

Cited by 16 publications

References 4 publications

Frequency tunable magnetostatic wave filters with zero static power magnetic biasing circuitry

Frequency tunable magnetostatic wave filters with zero static power magnetic biasing circuitry

Perpendicularly magnetized YIG-film resonators and waveguides with high operating power

Magnon Confinement in an All-on-Chip YIG Cavity Resonator Using Hybrid YIG/Py Magnon Barriers

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