Current on a long, thin wire in a chiral medium

Author

Burke, Gerald J. ; Miller, Edmund K. ; Bhattacharyya, Asoke K.

Author_Institution

Lawrence Livermore Nat. Lab., CA, USA

Volume

42

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

827

Lastpage

832

Abstract

The propagation of current on a thin, straight wire in an infinite chiral medium is examined by solution of the integral equation for an infinite wire and also from the moment-method solution for a long wire of finite length. The current on the infinite wire is shown to consist of three components: a discrete mode that decays exponentially and two continuous-spectrum components from branch cuts from the two chiral wavenumbers. The integral equation for a finite wire in the chiral medium is solved by the method of moments using a modified version of the numerical electromagnetics code (NEC). The moment-method solution is shown to be in close agreement with the modal solution for the infinite wire, providing validation for the numerical treatment

Keywords

antenna theory; electric current; integral equations; numerical analysis; branch cuts; chiral medium; chiral wavenumbers; continuous-spectrum components; discrete mode; integral equation; long thin wire; moment-method solution; numerical electromagnetics code; propagation of current; Electromagnetic radiation; Electromagnetic scattering; Helium; Integral equations; Laboratories; Maxwell equations; Moment methods; National electric code; Polarization; Wire;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.301702

Filename

301702