A Metamaterial Surface Avoiding Loss from the Radome for a Millimeter-Wave Signal-Sensing Array Antenna

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

A Metamaterial Surface Avoiding Loss from the Radome for a 2 Millimeter-Wave Signal-Sensing Array Antenna

1. Explain novelties of the current design compared to recent works

2. Develop the expression for resonant frequency using basic related equations

3. Improve the quality of the graphs in entire paper

4. How to measure the Surface Avoiding Loss from the Radom

 

Comments on the Quality of English Language

Need to improve the entire paper

Author Response

We submit the revised version.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

The article “A Metamaterial Surface Avoiding Loss from the Radome for a 2 Millimeter-Wave Signal-Sensing Array Antenna” is an interesting original study that, after corrections, will be of interest to readers.

The authors use two different terms: metasurface and metamaterial. To process the results for metasurfaces and metamaterials, one need to use different formulas and approximations. It is difficult to conclude from the drawings what the authors represent: a metasurface or a metamaterial? Or both? What and in what cases? Without of more detail explanation, it is difficult to judge many of the results of the article.

The text says that the frequency range in which the system will operate is 18-24 GHz. In this case, the signal will propagate through the air under normal conditions. The frequency range 18-24 GHz is the dielectric relaxation range of water. In the case of rain and other water-containing precipitation, the signal is associated with the interaction of an electromagnetic wave with water that is in the air along the path of the electromagnetic. Since dielectric permittivity is measured, water sediments will make a fairly large contribution to the overall signal. At the same time, the part of the dielectric permittivity associated with water in such measurements will be parasitic in relation to the phenomena being studied, and will not be negligible. As a result, the accuracy of the phenomena being studied in the presence of precipitation will not be very well predicted, and in general in the case of precipitation there will be a significant decrease in the accuracy of the phenomena that the authors want to study.

Author Response

We submit the revised version.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

Accept in this form