Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method
Cristian Anghel
Round 1
Reviewer 1 Report
Dear Editor,
About the manuscript :
Title: Analysis of Wideband Scattering from Antenna Based on RFGG-FG-FFT with Cube Polynomial Inter/Extrapolation Method.
Authors: Weibin Kong et al.
In this work, the authors reported Green’s function and its gradient and Fourier Transform with cube polynomial inter/extrapolation method developed for the analysis of scattering from antenna over a wide frequency. In particular some numerical examples are traited in order to demonstrate the efficiency and accuracy of the proposed method.
My recommendation is that the paper should be revised: Minor Revision.
1) Introduction part should contained research papers/latest/related or research results should be cited to improve scientific quality of manuscript such as analytical and numerical methods, matrix,... applied in physics see the following works:
https://doi.org/10.1016/j.physleta.2017.08.026
https://doi.org/10.1016/j.infrared.2018.01.009
2) Question: Instead of general conclusion, the authors need to optimize their findings for the technology specific where their findings could be employed along with merits for the same over the existing device architecture.
Author Response
Point 1:Introduction part should contained research papers/latest/related or research results should be cited to improve scientific quality of manuscript such as analytical and numerical methods, matrix,... applied in physics see the following works.
Response 1: The authors would like to express our sincere appreciation to you for your time and efforts in providing such professional comments and suggestions. According to your valuable suggestions, we have thoroughly revised our manuscript to improve the quality of the paper. The modifications have been made in the revised manuscript.
Point 2: Question: Instead of general conclusion, the authors need to optimize their findings for the technology specific where their findings could be employed along with merits for the same over the existing device architecture.
Response 2: Thank for your careful comments!
The frequency band can be adjusted according to the actual situation, mainly considering the calculation efficiency and scale. The interpolation accuracy can meet the requirements of broadband [1].When calculating electrically large objects, if the frequency band is too wide, the near-field matrix will be too large in the low frequency band. Therefore, the broadband can be calculated in sections.
References
[1] W. D. Li, H. X. Zhou, J. Hu, Z. Song, and W. Hong, Accuracy improvement of cubic polynomial inter/extrapolation of MoM matrices by optimizing frequency samples. IEEE Antennas Wireless Propag. Lett. 2011, 10, 888-891.
Author Response File: 
Author Response.docx
Reviewer 2 Report
Congratulation for the paper. It is an interesting work.
Please find below few comments/ remarks related to the content and the format of the paper:
Section 3 appears twice in the paper: 3. RFGG-FG-FFT Algorithm and 3. Numerical Results
The transition between the mathematical model and the results should be smoother, indicating more precisely why those cases were chosen, and why it is relevant to compare on those ones and not on other cases.
In (14) choosing gamma’s value at 0.5 should be explained.
‘matrix, in which and are near field interaction impedances’ the sentence below (14) should be re-written
It would be nice to have the Figures explained in the text before the figures themselves being inserted in the article.
How the testing frequencies have been chosen? The 19GHz, 26GHz, 28GHz…
In Table 1 it seems the most important delta appears for Znear. For Zfar all the mentioned methods seem to have similar results. Can you comment on this please?
Author Response
Dear Reviewer：
As the reply contains formula, please refer to the attachment for specific reply. thank you!
Wei Bin Kong
Author Response File: Author Response.docx
