A Fractional Derivative Operator for Surface Impedance TLM Modeling

Author

Lanoë, Jérémy ; Le Maguer, S. ; Ney, M.M.

Author_Institution

Univ. of Western Brittany, Brest

Volume

17

Issue

9

fYear

2007

Firstpage

625

Lastpage

627

Abstract

A new and straightforward implementation of metallic losses in a time-domain field computation namely, the transmission line matrix (TLM) is presented. The approach is based on the description of the skin surface impedance concept directly in time-domain by means of a digital filter representing a fractional derivative operator. Numerical implementation based on recent advances in signal processing is shown. Finally, the new approach is tested and compared to usual TLM implementation showing the stability and accuracy of the scheme.

Keywords

digital filters; filtering theory; surface impedance; time-domain analysis; transmission line matrix methods; digital filter; fractional derivative operator; metallic loss; signal processing; skin surface impedance concept; surface impedance TLM modeling; time-domain field computation; transmission line matrix; Conductors; Filters; Fourier transforms; Millimeter wave communication; Millimeter wave technology; Propagation losses; Radio frequency; Surface impedance; Time domain analysis; Transmission line matrix methods; Fractional derivative; metallic losses; surface impedance; time-domain; transmission line matrix (TLM) method;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2007.903428

Filename

4295125