A New look at azimuthal wave propagation constants of an n-layered dielectric coated PEC cylinder

Authors

• Jason V. Paul, Air Force Institute of Technology
• Peter J. Collins, Air Force Institute of Technology
• Ronald A. Coutu Jr., Air Force Institute of Technology

Document Type

Article

Publication Date

5-2013

Abstract

A method for determining the azimuthal wave propagation constants supported by an n-layered dielectric coated PEC cylinder is presented. The method, based on a Green's function described in , is designed to optimally handle layered cylinders where the number of layers is extremely large as might be encountered in structures designed using transformational optics. The method is also tractable for any stratification profile without the need for individual layer analysis. We implement a recently developed numerical method to calculate Bessel functions of complex order and argument. Our method is verified by comparison with previously published results. We also present new results for a 5-layer case demonstrating self consistency and improved accuracy over published methods. Finally, to illustrate the method's benefits, we present a brief analysis of two multilayer structures; a multilayer variation of the coated cylinder presented in and an example of a 7-layer case that approximates a material parameter gradient.

Comments

The full text of this article is available from IEEE via subscription or purchase, using the DOI link below.

DOI

10.1109/TAP.2013.2242820

Source Publication

IEEE Transactions on Antennas and Propagation (ISSN 0018-926X)

Recommended Citation

J. V. Paul, P. J. Collins and R. A. Coutu, "A New Look at Azimuthal Wave Propagation Constants of an n-Layered Dielectric Coated PEC Cylinder," in IEEE Transactions on Antennas and Propagation, vol. 61, no. 5, pp. 2727-2734, May 2013, doi: 10.1109/TAP.2013.2242820.