Tomographic Characterization of a Multifunctional Composite High-Impedance Surface

Nicholson, K, Baum, T, Ziolkowski, R, Ghorbani, K and Bain, G 2018, 'Tomographic Characterization of a Multifunctional Composite High-Impedance Surface', IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 6, pp. 2904-2913.

Document type: Journal Article
Collection: Journal Articles

Title Tomographic Characterization of a Multifunctional Composite High-Impedance Surface
Author(s) Nicholson, K
Baum, T
Ziolkowski, R
Ghorbani, K
Bain, G
Year 2018
Journal name IEEE Transactions on Microwave Theory and Techniques
Volume number 66
Issue number 6
Start page 2904
End page 2913
Total pages 10
Publisher IEEE
Abstract The performance of a multifunctional composite high-impedance surface (HIS) has been evaluated using the coherent Doppler tomography (CDT) and finite-impulse response (FIR) filtering techniques. A combination of embroidery and advanced laser manufacturing processes were used to fabricate the conformable multifunctional glass fiber reenforced polymer HIS. The CDT method was utilized because it enabled the generation of a high-resolution tomographic map of the HIS reflectivity. Tomograms generated at high incidence angles (>80° from normal) were used to localize and FIR filter unwanted scattering associated with the ground plane edges and HIS transition regions. The resulting scattered fields from a defect (metallic block positioned in the center of the tomogram) were then used to gain a significantly distinctive insight into the HIS scattering properties. Furthermore, unlike traditional methods for characterizing HISs, the CDT and FIR methods presented herein are applicable to electrically large and conformal HISs.
Subject Electrical and Electronic Engineering not elsewhere classified
Communications Technologies not elsewhere classified
Keyword(s) Artificial magnetic conductor
high-impedance ground plane
high-impedance surface (HIS)
multifunctional structures
DOI - identifier 10.1109/TMTT.2018.2818154
Copyright notice © 2018 IEEE Crown Copyright
ISSN 0018-9480
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
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