A new tool for accurate S-parameters measurements and permittivity reconstruction
نویسندگان
چکیده
منابع مشابه
Permittivity and Measurements
Propagation of electromagnetic (EM) waves in radio frequency (RF) and microwave systems is described mathematically by Maxwell’s equations with corresponding boundary conditions. Dielectric properties of lossless and lossy materials influence EM field distribution. For a better understanding of the physical processes associated with various RF and microwave devices, it is necessary to know the ...
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هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...
15 صفحه اولNeural networks for FDTD-backed permittivity reconstruction
Purpose – To outline different versions of a novel method for accurate and efficient determining the dielectric properties of arbitrarily shaped materials. Design/methodology/approach – Complex permittivity is found using an artificial neural network procedure designed to control a 3D FDTD computation of S-parameters and to process their measurements. Network architectures are based on multilay...
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ژورنال
عنوان ژورنال: IEEE Transactions on Geoscience and Remote Sensing
سال: 2005
ISSN: 0196-2892
DOI: 10.1109/tgrs.2005.851163