Dumanli, S

Paul, DL

Railton, CJ

English

It has been shown recently that the use of modified assigned material parameters (MAMPs) within the finite-difference time-domain (FDTD) method provides a systematic, readily extensible, accurate, and efficient approach to the electromagnetic analysis of microstrip structures. In this paper, it is shown that this technique can also be applied with equal effect to lossless and lossy coaxial lines, wires in a lossy medium such as earthing grids, and more complex structures which include coaxial feeds and shorting posts. The modified parameters are calculated directly from the known asymptotic fields near the wire and do not rely on the concept of "equivalent radius." Results are given which show equal or superior performance compared to those obtained using other methods but with the added advantage of flexibility and rigo

Explore Bristol Research

A discretisation method for the solution of Maxwell’s equations for six component ﬁelds,”

A locally conformal ﬁnite-difference time domain algorithm for modeling three-dimensional perfectly conducting objects,”

An improved thin wire model for FDTD,”

Analysis of circular waveguide ﬁlter using enhanced FDTD,”

Broadband stacked shorted patch,”

C.J.Railton,D.L.Paul,I.J.Craddock,andG.S.Hilton,“Thetreatmentof geometrically small structures in FDTD by the modiﬁcation of assigned material parameters,”

Calculation and experimental validation of induced currents on coupled wires in an arbitrary shaped cavity,”

da Frota Mattos, “Grounding grids transient simulation,”

Earth Conduction Effects

Finite-Difference analysis of EMP coupling to thin struts and wires,”

Full-wave modelling of coaxial cables by FDTD technique,”

G.WaldschmidtandA.Taﬂove,“Thedeterminationoftheeffectiveradius of a ﬁlamentary source in the FDTD mesh,”

Modelling of thin wires in a lossy medium for FDTD simulations,”

The choice of cell size and the use of pre-calculated correction factors in the analysis of planar circuits using FDTD and TLM,” in

The inclusion of fringing capacitance and inductance in FDTDfortherobustaccuratetreatmentofmaterialdiscontinuities,”

Time domain electromagnetic ﬁeld computation with ﬁnite difference methods,”

Y.Liu,N.Theethayi,andR.Thottappillil,“Anengineeringmodelfortransient analysis of grounding system under lightning strikes: Non-uniform transmission-line approach,”

The treatment of thin wire and coaxial structures in lossless and lossy media in FDTD by the modification of assigned material parameters

https://research-information.bris.ac.uk/files/3008361/railton_IEEE_ElecComp_2006.pdf

The treatment of thin wire and coaxial structures in lossless and lossy media in FDTD by the modification of assigned material parameters

Abstract

Similar works

Full text

Available Versions

Explore Bristol Research