Measurement Technique for Microwave Surface Resistance of Additive Manufactured Metals
Measurement Technique for Microwave Surface Resistance of Additive Manufactured Metals
复制标题
增材制造金属微波表面电阻测量技术
DOI:
10.1109/tmtt.2020.3035082
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发表时间:
2021
影响因子:
4.3
通讯作者:
Gumbleton R
中科院分区:
文献类型:
--
作者:
Gumbleton R
Additive manufactured (AM) metals are a subject of much interest for their performance in passive microwave applications. However, limitations could arise due to artifacts, such as surface texture and/or roughness resulting from the manufacturing process. We have, therefore, adopted a parallel plate microwave resonator for the accurate measurement of the surface resistance of flat metal plates, allowing for microwave current flow in two orthogonal directions by simply exciting a different resonant mode (at 5.3 and 6.4 GHz), without the need to remove and refix the sample. The systematic and random errors associated with the measurement of surface resistance are very small, less than 1% and 0.1%, respectively. The technique is demonstrated with measurements on a range of samples of the alloys, AlSi10Mg and Ti6Al4V, manufactured by laser powder bed fusion, in addition to traditionally machined samples of bulk metal alloys of aluminum and brass. For AM samples of AlSi10Mg, we have studied the effect on the surface resistance of directional roughness features, generated by the laser raster paths, in directions transverse or parallel to microwave current flow. Importantly for passive microwave device applications, we demonstrate that these samples exhibit no systematic anisotropy of surface resistance associated with such surface features.
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DOI:
--
发表时间:
2017
期刊:
European Microwave Conference
影响因子:
--
作者:
G. Addamo;O. Peverini;M. Lumia;G. Virone;R. Tascone;F. Calignano;D. Manfredi
通讯作者:
D. Manfredi
DOI:
--
发表时间:
2017
期刊:
Intelligent Memory Systems
影响因子:
--
作者:
Michael Hollenbeck;K. Wamick;Clinton Cathey;Janos Opra;R. Smith
通讯作者:
R. Smith
影响因子:
5.6
作者:
Hefford S
通讯作者:
Hefford S
DOI:
--
发表时间:
2019
期刊:
--
影响因子:
--
作者:
Gumbleton R
通讯作者:
Gumbleton R
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
C. Railton;T. Rozzi
通讯作者:
T. Rozzi