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http://hdl.handle.net/10773/36017
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bouca, Patricia | pt_PT |
dc.contributor.author | Figueiredo, Ricardo | pt_PT |
dc.contributor.author | Wlodarkiewicz, Anna | pt_PT |
dc.contributor.author | Tkach, Alexander | pt_PT |
dc.contributor.author | Matos, Joao Nuno | pt_PT |
dc.contributor.author | Vilarinho, Paula M. | pt_PT |
dc.contributor.author | de Carvalho, Nuno Borges | pt_PT |
dc.date.accessioned | 2023-01-26T11:12:49Z | - |
dc.date.available | 2023-01-26T11:12:49Z | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 0018-9480 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/36017 | - |
dc.description.abstract | In this article, a novel study of the design and characterization of barium strontium titanate (BST) thick films produced by electrophoretic deposition (EPD) on flexible platinum foils is reported. Intended for sub-6 GHz radio frequency (RF) applications, a study on film and electrode thickness is conducted. First, a comparison of tunability and quality factor between different film thicknesses regarding frequency is performed. The Ba0.7Sr0.3TiO3 varactors demonstrate variable capacitance between 49% and 55% for frequencies from 500 MHz to 5 GHz. Afterward, the influence of electrode thickness on the capacitance and quality factor of the films are studied. The variable capacitance and the quality factor present a tradeoff regarding the parametric studies of film and electrode thicknesses. Lastly, a microstrip line is deposited over the BST thick film to simulate and measure the phase-shifting capabilities of the device. Using a one-tone measurement setup, the small-signal S-parameter measurements of the phase shifter are also presented, and the linearity is analyzed considering two different bias voltages, 0 and 10 V. For the first time, the BST thick films fabricated by EPD process are implemented and measured in the RF regime as a metal–insulator–metal capacitor and as a phase shifter circuit. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | IEEE | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50008%2F2020/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_CENTRO/2020.05679.BD/PT | pt_PT |
dc.rights | restrictedAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.subject | Barium strontium titanate (BST) | pt_PT |
dc.subject | Ceramics | pt_PT |
dc.subject | Electrophoretic deposition (EPD) | pt_PT |
dc.subject | Ferroelectrics | pt_PT |
dc.subject | Metal–insulator– metal (MIM) varactors | pt_PT |
dc.subject | Nonlinear measurements | pt_PT |
dc.subject | One-tone measurements | pt_PT |
dc.subject | Tunable devices | pt_PT |
dc.subject | Phase-shifter | pt_PT |
dc.title | Design and Characterization of Novel Barium Strontium Titanate Thick Films for Sub-6 GHz RF Applications | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.firstPage | 611 | pt_PT |
degois.publication.issue | 1 | pt_PT |
degois.publication.lastPage | 621 | pt_PT |
degois.publication.title | IEEE Transactions on Microwave Theory and Techniques | pt_PT |
degois.publication.volume | 70 | pt_PT |
dc.identifier.doi | 10.1109/TMTT.2021.3125030 | pt_PT |
dc.identifier.essn | 1557-9670 | pt_PT |
Appears in Collections: | CICECO - Artigos DETI - Artigos DEMaC - Artigos IT - Artigos |
Files in This Item:
File | Description | Size | Format | |
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IEEE-TMTT70(2022)611-Bouca.pdf | 4.24 MB | Adobe PDF |
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