Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method

This paper presents an efficient real-coefficient fitting both Green’s function and its gradient with Fast Fourier Transform (RFGG-FG-FFT) with cube polynomial inter/extrapolation method (CPIE), which is established for the analysis of scattering from antenna over a wide frequency. To improve the co...

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Main Authors: Weibin Kong, Yongtao Zheng, Yubin Song, Zhongqing Fang, Xiaofang Yang, Haonan Zhang
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/20/10298
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author Weibin Kong
Yongtao Zheng
Yubin Song
Zhongqing Fang
Xiaofang Yang
Haonan Zhang
author_facet Weibin Kong
Yongtao Zheng
Yubin Song
Zhongqing Fang
Xiaofang Yang
Haonan Zhang
author_sort Weibin Kong
collection DOAJ
description This paper presents an efficient real-coefficient fitting both Green’s function and its gradient with Fast Fourier Transform (RFGG-FG-FFT) with cube polynomial inter/extrapolation method (CPIE), which is established for the analysis of scattering from antenna over a wide frequency. To improve the computation efficiency, the CPIE is utilized. In order to reduce memory requirements and accelerate matrix vector multiplication, the RFGG-FG-FFT is adopted. The accuracy, correctness and efficiency of the new method are researched on some examples. Compared with the direct method, the examples show that the new method is superior in broadband without loss of accuracy.
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spelling doaj.art-0d69dfcc79e94b39bf1bb8251f0632642023-11-23T22:42:20ZengMDPI AGApplied Sciences2076-34172022-10-0112201029810.3390/app122010298Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation MethodWeibin Kong0Yongtao Zheng1Yubin Song2Zhongqing Fang3Xiaofang Yang4Haonan Zhang5Research Center of Photoelectric and Information Technology, Yancheng Institute of Technology, School of Information Engineering, Yancheng 224051, ChinaResearch Center of Photoelectric and Information Technology, Yancheng Institute of Technology, School of Information Engineering, Yancheng 224051, ChinaResearch Center of Photoelectric and Information Technology, Yancheng Institute of Technology, School of Information Engineering, Yancheng 224051, ChinaResearch Center of Photoelectric and Information Technology, Yancheng Institute of Technology, School of Information Engineering, Yancheng 224051, ChinaResearch Center of Photoelectric and Information Technology, Yancheng Institute of Technology, School of Information Engineering, Yancheng 224051, ChinaResearch Center of Photoelectric and Information Technology, Yancheng Institute of Technology, School of Information Engineering, Yancheng 224051, ChinaThis paper presents an efficient real-coefficient fitting both Green’s function and its gradient with Fast Fourier Transform (RFGG-FG-FFT) with cube polynomial inter/extrapolation method (CPIE), which is established for the analysis of scattering from antenna over a wide frequency. To improve the computation efficiency, the CPIE is utilized. In order to reduce memory requirements and accelerate matrix vector multiplication, the RFGG-FG-FFT is adopted. The accuracy, correctness and efficiency of the new method are researched on some examples. Compared with the direct method, the examples show that the new method is superior in broadband without loss of accuracy.https://www.mdpi.com/2076-3417/12/20/10298impedance matrixMoMRFG-FFTcube polynomial inter/extrapolation method (CPIE)
spellingShingle Weibin Kong
Yongtao Zheng
Yubin Song
Zhongqing Fang
Xiaofang Yang
Haonan Zhang
Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
Applied Sciences
impedance matrix
MoM
RFG-FFT
cube polynomial inter/extrapolation method (CPIE)
title Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
title_full Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
title_fullStr Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
title_full_unstemmed Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
title_short Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
title_sort analysis of wideband scattering from antenna based on rfgg fg fft with cube polynomial inter extrapolation method
topic impedance matrix
MoM
RFG-FFT
cube polynomial inter/extrapolation method (CPIE)
url https://www.mdpi.com/2076-3417/12/20/10298
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AT zhongqingfang analysisofwidebandscatteringfromantennabasedonrfggfgfftwithcubepolynomialinterextrapolationmethod
AT xiaofangyang analysisofwidebandscatteringfromantennabasedonrfggfgfftwithcubepolynomialinterextrapolationmethod
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