An Edge-Coupled Magnetostatic Bandpass Filter

Fuente: arXiv
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Hauptverfasser: Devitt, Connor, Wang, Renyuan, Tiwari, Sudhanshu, Bhave, Sunil A.
Format: Preprint
Veröffentlicht: 2023
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author Devitt, Connor
Wang, Renyuan
Tiwari, Sudhanshu
Bhave, Sunil A.
author_facet Devitt, Connor
Wang, Renyuan
Tiwari, Sudhanshu
Bhave, Sunil A.
contents This paper reports on the design, fabrication, and characterization of an edge-coupled magnetostatic forward volume wave bandpass filter. Using micromachining techniques, the filter is fabricated from a yttrium iron garnet (YIG) film grown on a gadolinium gallium garnet (GGG) substrate with inductive transducers. By adjusting an out-of-plane magnetic field, we demonstrate linear center frequency tuning for a $4^{\text{th}}$-order filter from 4.5 GHz to 10.1 GHz while retaining a fractional bandwidth of 0.3%, an insertion loss of 6.94 dB, and a -35dB rejection. We characterize the filter nonlinearity in the passband and stopband with IIP3 measurements of -4.85 dBm and 25.84 dBm, respectively. When integrated with a tunable magnetic field, this device is an octave tunable narrowband channel-select filter.
format Preprint
id arxiv_https___arxiv_org_abs_2312_10583
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle An Edge-Coupled Magnetostatic Bandpass Filter
Devitt, Connor
Wang, Renyuan
Tiwari, Sudhanshu
Bhave, Sunil A.
Applied Physics
This paper reports on the design, fabrication, and characterization of an edge-coupled magnetostatic forward volume wave bandpass filter. Using micromachining techniques, the filter is fabricated from a yttrium iron garnet (YIG) film grown on a gadolinium gallium garnet (GGG) substrate with inductive transducers. By adjusting an out-of-plane magnetic field, we demonstrate linear center frequency tuning for a $4^{\text{th}}$-order filter from 4.5 GHz to 10.1 GHz while retaining a fractional bandwidth of 0.3%, an insertion loss of 6.94 dB, and a -35dB rejection. We characterize the filter nonlinearity in the passband and stopband with IIP3 measurements of -4.85 dBm and 25.84 dBm, respectively. When integrated with a tunable magnetic field, this device is an octave tunable narrowband channel-select filter.
title An Edge-Coupled Magnetostatic Bandpass Filter
topic Applied Physics
url https://arxiv.org/abs/2312.10583