An Extrapolation Method for Improving Waveguide Probe Material Characterization Accuracy

被引:12
作者
Dester, Gary D. [1 ]
Rothwell, Edward J. [1 ]
Havrilla, Michael J. [2 ]
机构
[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA
[2] USAF, Inst Technol, Dept Elect & Comp Engn, Wright Patterson AFB, OH 45433 USA
关键词
Error analysis; materials testing; microwave measurements; mode matching methods; waveguide junctions; REFLECTION;
D O I
10.1109/LMWC.2010.2045600
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Waveguide probes are useful for extracting the electric and magnetic properties of material layers, but the accuracy of the results is limited by the accuracy of the theoretical model. Using more modes in the expansion of the waveguide fields produces better results, but the computational cost increases with the number of modes squared. This letter analyzes the dependence of solution accuracy on the number of modes used and, based on this, introduces an extrapolation technique that allows the number of modes to be significantly reduced with little loss of accuracy.
引用
收藏
页码:298 / 300
页数:3
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