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Mehdi Bozorgi

Mehdi Bozorgi

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0003-0694-5390
Education: PhD.
ScopusId: 35490004500
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
A generalized method for scattering from wide cavities with specified wave functions
Type
JournalPaper
Keywords
scattering,cavities,wave functions
Year
2021
Journal IET MICROW ANTENNA P
DOI
Researchers Mehdi Bozorgi

Abstract

This study developed a generalized solution based on modal expansion for scattering by large cavities with known wave functions placed in an infinite perfect electric plane. Under the assumption of a large cavity, to reduce simulation time and simplify expressions, the half‐space above cavity with a strong singular Green's function is substituted by an arbitrary semi‐waveguide. The fields inside the cavity are expanded by the semi‐waveguide eigenfunctions. The corresponding modes are matched to create a system of linear equations for unknown expansion coefficients. To demonstrate the validity and ability of this method, it is applied to several grooves with different shapes (triangular, circular, and elliptical grooves) and then their scattering signatures are compared with each other. The results are also verified by the results obtained by the method of moment. The measured simulation time for both methods shows that this scheme can be an appropriate candidate for analysing the scattered fields by large cavities.