JA Roumeliotis, AD Kotsis, G Kolezas - Acoustical Physics, 2007 - Springer
The scattering of a plane acoustic wave from an impenetrable, soft or hard, prolate or oblate spheroid is considered. Two different methods are used for the evaluation. In the first, the …
AD Kotsis, JA Roumeliotis - Acoustical Physics, 2008 - Springer
The scattering of a plane acoustic wave from a penetrable prolate or oblate spheroid is considered. Two different methods are used for the evaluation. In the first, the pressure field …
G Kokkorakis, J Roumeliotis - Mathematics of computation, 2001 - ams.org
Power series expansions for the even and odd angular Mathieu functions $\operatorname {Se} _m (h,\operatorname {cos}\theta) $ and $\operatorname {So} _m (h,\operatorname …
GD Tsogkas, JA Roumeliotis… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
The cutoff wavelengths lambda cmn of elliptical metallic waveguides with perfectly conducting walls are determined analytically. Two different methods are used for the …
GP Zouros, JA Roumeliotis - IEEE transactions on microwave …, 2012 - ieeexplore.ieee.org
The cutoff wavenumbers of the elliptical dielectric waveguide are calculated exactly and analytically. Two separate methods are used to solve this problem. The first method is based …
GC Kokkorakis, JA Roumeliotis - Journal of electromagnetic waves …, 1998 - Taylor & Francis
The electromagnetic eigenfrequencies fnsm in a perfectly conducting spheroidal cavity are determined analytically. The analytical determination is possible in the case of small values …
GP Zouros, AD Kotsis… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
The electromagnetic scattering of a plane wave by a metallic spheroid is considered in this work. The solution is obtained using two alternative methods: the first method is based on …
GP Zouros, AD Kotsis… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
In this paper, we study the electromagnetic scattering of a plane wave by a prolate or oblate dielectric spheroid, which can be lossless or lossy. The presented efficient solution is …
In this paper, we propose an efficient method for the calculation of the cutoff wavenumbers of coaxial elliptical-circular and circular-elliptical metallic waveguides. The cutoff wavenumbers …