Attributed scattering center extraction algorithm based on sparse representation with dictionary refinement

H Liu, B Jiu, F Li, Y Wang - IEEE Transactions on Antennas …, 2017 - ieeexplore.ieee.org
Compared with the point-scattering model, the attributed scattering center model (ASCM) is
able to describe the frequency and aspect dependence of canonical scattering objects using …

Conical horn: Gain and amplitude patterns

NA Aboserwal, CA Balanis… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
The conical horn radiation characteristics (gain, aperture phase distributions, loss factors,
and amplitude patterns) are revisited based on the spherical and quadratic aperture phase …

Impact of finite ground plane edge diffractions on radiation patterns of aperture antennas

NA Aboserwal, C Balanis, CR Birtcher - Progress In Electromagnetics …, 2013 - jpier.org
In this study, the impact of finite ground plane edge diffractions on the amplitude patterns of
aperture antennas is examined. The Uniform Theory of Diffraction (UTD) and the …

[HTML][HTML] Polynomial-based evaluation of the impact of aperture phase taper on the gain of rectangular horns

KB Baltzis - Journal of Electromagnetic Analysis and Applications, 2010 - scirp.org
The aperture phase taper due to quadratic phase errors in the principal planes of a
rectangular horn imposes signifi-cant constraints on the on-axis far-field gain of the horn …

Modified edge representation (MER) consisting of Keller's diffraction coefficients with weighted fringe waves and its localization for evaluation of corner diffraction

M Ali, T Kohama, M Ando - IEEE Transactions on Antennas …, 2015 - ieeexplore.ieee.org
Equivalent edge currents (EECs) for high-frequency diffraction analysis are intermediate
concepts between ray theory and wave optics [physical optics (PO)]. The methods of EEC …

Symmetrical Beam Pattern Generation of Open-ended Waveguide with Enhanced Gain using an Elliptical Dielectric Sandwiched Groundplane

AK Yerrola, M Ali, RK Arya… - 2023 IEEE Microwaves …, 2023 - ieeexplore.ieee.org
This paper uses a standard WR28 open-ended waveguide (OEWG) antenna to generate a
symmetrical beam pattern with improved gain. An elliptical ground plane consisting of a …

CEM methods in RF and microwave engineering in the context of parameters that influence the outcome of modeling

MI Mohammed, MG Gebremicaheal… - The European Physical …, 2020 - Springer
The starting point toward modeling of a given electromagnetic (EM) problem is to know the
modeling constraints/features of different modeling tools, and hence figure out if they are …

Analysis of horn radiation pattern using UTD edge and corner diffraction

M Ali, SO Park, S Sanyal - Progress In Electromagnetics Research M, 2011 - jpier.org
Finite edge geometrical theory of diffraction (FEGTD) approach is a new and latest
improvement in GTD technique. This FEGTD technique is applied to the H-plane and E …

3D fully polarimetric attributed scattering center extraction based on sequential 2D SAR images

Y Zhao, B Jiu, L Zhang, H Liu, Z Li - IEEE Access, 2019 - ieeexplore.ieee.org
Compared with the two-dimensional (2D) attributed scattering center model (ASCM), three
dimensional (3D) fully polarimetric attributed scattering center model (FP-ASCM) is able to …

Time-Domain Solution for Corner Diffraction of UWB Signals by Flat Plate Structures with the Higher Order Diffraction Included

B Bansal, S Soni, RK Jaiswal, V Kumar - IETE Journal of Research, 2018 - Taylor & Francis
In this paper, a new time-domain (TD) solution is proposed for corner diffraction by finite-
edge flat plate structures. First, TD solution is considered for corner amplitude diffraction by …