A New Compact Split Ring Resonator Based Double Inverse Epsilon Shaped Metamaterial for Triple Band Satellite and Radar Communication
, Mayeen Uddin Khandaker 2, Amal Alqahtani 3 and David A. Bradley 2,4Round 1
Reviewer 1 Report
The manuscript describes a design of a metamaterial with resonances in the S, C and X bands. The material might have useful applications in communication technology, e.g. in antenna radomes. The performed design and simulation procedures are at a good level. The main problem of the work is its extremely weak English usage, which makes the paper almost unreadable at many places (though one of the authors is from UK!). Further deficiencies are bad typesetting, e.g. (6) and (7), doubled content in Table 2, deformed figures 3, 4, 5 and 7. No experimental validation of the design is presented.
Author Response
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Author Response File: 
Author Response.pdf
Reviewer 2 Report
The authors present a simulation study on triple band epsilon negative SRR metamaterial design. The flow is consistent and easy to understand. I have multiple comments to be addressed before considering publication at Crystals.
1. The key innovation of the presented MM design is not highlighted. Similar SRR designs have been reported. What is the uniqueness or scientific impact of this study?
2. This work is entirely simulated results. Have the authors actually fabricate actual devices/metamaterial as proposed? What would be the actual resonances and potential deviations?
3. I found multiple grammar errors and typos. Please check carefully. Please also correct format of the references.
4. The figures are elongated and not in correct X/Y ratio.
Author Response
As attached.
Author Response File: Author Response.pdf
Reviewer 3 Report
Dear authors,
The presented work has interesting investigation on a novel metamaterial with the focus on the performance improvement. Yet, some points can be modified as follows:
- Table 2 has repeated content.
- Graphs seem to be smeared, somehow shrunk from top and bottom, please revise them.
- What are the values for the equivalent circuit as shown in Fig. 11, please provide a table with the element values.
- Array simulation results reveal marginal variation with respect to a single unit cell. Do you see any benefit in using an array with multiple size compared with a single unit cell?
- Maybe a more interesting investigation could be on the arraying with different orientation of unit cells, in the proposed design of Fig. 17b, what if two of the diagonal elements could be rotated 90 degrees?
- There are quite a few articles in the literature on the microwave sensing that have not been discussed in the introduction. Examples are:
- DOI: 10.1109/JSEN.2021.3090050
- DOI: 10.3390/s21113759
- DOI: 10.1109/JERM.2022.3146192
Author Response
As attached.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The revised version has accounted for my main critical comments. Small text editing and improvement in formatting equations are still required.
Author Response
As attached.
Author Response File: Author Response.pdf
Reviewer 2 Report
The comments are well addressed. Please check grammar and typo.
Author Response
As attached.
Author Response File: Author Response.pdf
Reviewer 3 Report
Thank you for addressing the comments.
Author Response
As attached.
Author Response File: Author Response.pdf
