Uniform diffracted fields of the extended theory of BDW from the circular aperture on a perfectly magnetic conductive surface

Altınel M., YALÇIN U.

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, cilt.43, sa.2, ss.269-281, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 2
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1108/compel-06-2023-0223
  • Dergi Adı: COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, DIALNET, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.269-281
  • Anahtar Kelimeler: Boundary diffraction wave, Extended theory approach, Fresnel, Perfectly magnetic conductive, PMC, Uniform diffracted fields
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Purpose: This paper aims to examine the uniform diffracted fields from a perfectly magnetic conductive (PMC) surface with the extended theory of boundary diffraction wave (BDW) approach. Design/methodology/approach: Miyamoto and Wolf’s symbolic expression of the vector potential was used in the extended theory of BDW integral. This vector potential is applied to the problem, and the nonuniform field expression found was made uniform. Here, the expression is made uniform, using the detour parameter with the help of the asymptotic correlation of the Fresnel function. The BDW theory for the PMC surface extended the diffracted fields, and the uniform diffracted fields were calculated. Findings: The field expressions obtained were interpreted with the graphs numerically for different aperture radii and observation distances. It has been shown that the BDW is continuous behind the diffracting aperture. There does not exist any discontinuity at the geometrically light-to-shadow transition boundary, as is required by the theory. Originality/value: The results were graphically compared with diffracted fields for other surfaces. As far as we know, the uniform diffracted fields from the circular aperture on a PMC surface were calculated for the first time with the extended theory of the BDW approach.