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Taslimi, M., Ebrahimzade, A., Zakeri, B., Hosseini andargoli, S. (2022). WideBand CPML Optimization Using Artificial Bees Algorithm. Electronic and Cyber Defense, 10(1), -.
Mehran Taslimi; Ataollah Ebrahimzade; Bijan Zakeri; Seyed Mehdi Hosseini andargoli. "WideBand CPML Optimization Using Artificial Bees Algorithm". Electronic and Cyber Defense, 10, 1, 2022, -.
Taslimi, M., Ebrahimzade, A., Zakeri, B., Hosseini andargoli, S. (2022). 'WideBand CPML Optimization Using Artificial Bees Algorithm', Electronic and Cyber Defense, 10(1), pp. -.
Taslimi, M., Ebrahimzade, A., Zakeri, B., Hosseini andargoli, S. WideBand CPML Optimization Using Artificial Bees Algorithm. Electronic and Cyber Defense, 2022; 10(1): -.

WideBand CPML Optimization Using Artificial Bees Algorithm

رادار
Article 11, Volume 10, Issue 1 - Serial Number 27, July 2022    PDF (894.82 K)
Document Type: Original Article
Authors
Mehran Taslimi1; Ataollah Ebrahimzade* 2; Bijan Zakeri3; Seyed Mehdi Hosseini andargoli3
1PhD student, Babol Noshirvani University of Technology, Babol, Iran
2Professor, Babol Noshirvani University of Technology, Babol, Iran
3Associate Professor, Babol Noshirvani University of Technology, Babol, Iran
Receive Date: 09 April 2022,  Revise Date: 11 July 2022,  Accept Date: 06 August 2022 
Abstract
FDTD (Finite Difference Time Domain) numerical method is capable of modeling complex electromagnetic phenomena by calculating electric and magnetic fields using Yee's algorithm. In this method it is possible to model unbounded media using convolutional perfectly matched layer (CPML) absorber But the use of CPML for broadband applications faces a fundamental challenge, and that is the strong reflection of low-frequency harmonics from CPML absorber layers into the FDTD space; Therefore, it is necessary to design the parameters of the CPML absorber accurately in order to prevent the reflection of low frequency harmonics into the simulation space. In this paper, CPML parameters are designed by optimizing a cost function, which is based on reflection coefficient, cutoff frequency and attenuation of CPML layers. The optimization of this cost function is done using the artificial bee algorithm. Result of this algorithm are compared with a conventional values for CPML parameters, which shows more than 15 dB improvement of wave reflection from CPML layers. Also wave incidence modeling for Impulse signals is done using TFSF, so that the scattered fields can be calculated easily.
Keywords
FDTD numerical Method; Artificial Bees Colony; CPML Absorber Optimization; CPML Low Frequency Harmonics Reduction
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