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Reduced‐cost microwave component modeling using space mapping‐enhanced electromagnetic‐based kriging surrogates
Author(s) -
Koziel Slawomir,
Bandler John W.,
Cheng Qingsha S.
Publication year - 2012
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.1872
Subject(s) - space mapping , discretization , microwave , interpolation (computer graphics) , kriging , microstrip , component (thermodynamics) , computer science , planar , fidelity , electronic engineering , acoustics , algorithm , physics , mathematics , telecommunications , engineering , mathematical analysis , computer graphics (images) , machine learning , frame (networking) , thermodynamics
We present a versatile technique for constructing fast microwave component models at a low computational cost. Our modeling procedure consists of two stages: (i) kriging interpolation of coarsely discretized electromagnetic simulation data of the device under consideration and (ii) enhancing the kriging model by using space mapping and a limited amount of high‐fidelity electromagnetic simulation data. The use of coarse discretization data allows for low‐cost model generation, whereas space mapping is a convenient way of ensuring its accuracy. Our approach can be applied to almost any type of microwave device; it can also work with other types of nonsmooth or costly low‐fidelity models. The operation and performance of our methodology is demonstrated using a variety of microwave components, including a microstrip filter, a planar ultrawideband antenna, and a microstrip‐to‐coplanar waveguide transition. Copyright © 2012 John Wiley & Sons, Ltd.