A Patch Antenna with Enhanced Gain and Bandwidth for Sub-6 GHz and Sub-7 GHz 5G Wireless Applications
, Thennarasan Sabapathy 1, Ali Hanafiah Rambe 2, Hamsakutty Vettikalladi 3, Ali M. Albishi 3 and Mohamed Himdi 4Round 1
Reviewer 1 Report
The authors have presented a work titled “A Dual Band Patch Antenna for sub-6 GHz and sub-7 GHz Bands of 5G with Enhanced Gain and Bandwidth” . However, the following improvements are suggested:
1. The introduction should be improved.
2. The design steps of the proposed antenna with relevant equations used to design should be added.
3. The simulated and measured radiation pattern should be added in one single figure. Also, the co-polar and cross polar in both E-plane and H-plane should be added.
4. A lot of noise is observed in the measured radiation pattern, also a lot of deviation is observed as compared to the simulated one. Kindly justify the same.
5. An equivalent circuit of the proposed antenna should be added and compared with the simulated design. The authors can refer the following papers and cite them accordingly.
a. Multiband, Miniaturized, Maze Shaped Antenna with an Air‐Gap For Wireless Applications
b. Equivalent Circuit Model of Octagonal Ultra-Wideband (UWB) Antenna
6. A graph of Simulated and Measured gain and efficiency should be added along with the formula used to measure the same.
7. The authors have used only 12 references whereas a lot of research has been done in the proposed work. Authors should include atleast 10-12 more references. The following suggested references can be added and compared with the proposed antenna.
a. A Simple Dual-Polarized Patch Antenna Array for Wi-Fi 6/6E Application
b. Wideband cpw-fed oval-shaped monopole antenna for wi-fi5 and wi-fi6 applications
c. Quad-Band Circular Polarized Antenna for GNSS, 5G and WIFI-6E Applications
d. A Dual-Band Conformal Antenna Based on Highly Conductive Graphene-Assembled Films for 5G WLAN Applications
Author Response
Please see the attachment for the response to the reviewer. Thank you
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This work has shown an in-depth study of parasitic elements in dual-band antenna design. I believe this will be a valuable asset to new researchers.
Your presentation and analysis of the proposed design are good and I recommend this work for publication.
Author Response
Please see the attachment for the response to the reviewer. Thank you
Author Response File: Author Response.pdf
Reviewer 3 Report
This paper is about the design of a microstrip patch antenna with enhanced gain for 5G applications. The antenna parameters confirm the gain enhancement and suitability of the antenna for dual band applications. Following are the suggestions to the authors:
1. The title of the paper may be modified as ‘A Patch Antenna with Enhanced Gain and Bandwidth for sub-6 GHz and sub-7 GHz 5G Bands Applications’ as antenna-2 is resonating at three frequencies.
2. In keywords, ‘Dual band antennas’ may also be included.
3. In the introduction sections, more literature about the antennas for sub-6GHz/sub-7GHz/dual-band should be included.
4. On page 3, lines 99-102, dimensions of the parameters are missing.
5. In Figure 5, the simulated and measured patterns data should be normalized. Using normalized data, these should be plotted on the same graph.
6. In Figure 8, there should be three structures for each graph.
7. In Table 2, for ref [8] and ref [9], there is no need of ‘mm’ as unit of dimensions is specified in the heading column.
8. As mentioned above, some recent references related to the sub-6 GHz such as ‘Design of a 5G Sub-6 GHz Vehicular Cellular Antenna Element with Consistent Radiation Pattern Using Characteristic Mode Analysis’, ‘A high gain antenna with DGS for sub-6 GHz 5G communications’ etc should be included.
9. In Ref [3], no. ? is missing and month should be written with the year of publication.
10. There are some typos, please proofread the paper. I would like to see the revised paper.
Minor editing of English language required
Author Response
Please see the attachment for the response to the reviewer. Thank you
Author Response File: Author Response.pdf
Reviewer 4 Report
The authors present a dual band patch antenna for enhanced performance at sub- 6 and 7 GHz, respectively. The idea is of interest and the manuscript is generally well written. However, improvements have to be adopted.
1. Please avoid using the terms n77/n78/n96 bands. It is preferable to use frequencies instead.
2. The most important is the theoretical/mathematical background of the antenna design and analysis. It should be incorporated accordingly in the text.
3. In page 3, lines 100, 101, please indicate that the units are millimeters.
4. It is not quite clear what the polar diagrams represent in Figure 5. These correspond to azimuth or elevation patterns? It is advisable that both horizontal and elevation antenna patterns be included.
The quality of English is good, minor modifications will be required.
Author Response
Please see the attachment for the response to the reviewer. Thank you
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The authors have implemented most of the comments. My decision is to accept the paper, however quality of all the figures should be improved.
Author Response
Thank you for your comment. We have revised it as per as the reviewers suggestion.
Author Response File: Author Response.pdf
Reviewer 3 Report
Authors have addressed the comments in the revised paper. Paper is acceptable.
Minor editing of English language required
Author Response
Thank you for your comment. We have revised it as per as the reviewers suggestion.
Author Response File: Author Response.pdf
Reviewer 4 Report
The authors addressed the raised issues and improved the manuscript.
One minor comment that was not taken into account by the authors: please remove the terms n77, n78, and n79, before publication.
The authors addressed the raised issues and improved the manuscript.
One minor comment that was not taken into account by the authors: please remove the terms n77, n78, and n79, before publication.
Author Response
Thank you for your comment. We have revised it as per as the reviewers suggestion.
Author Response File: Author Response.pdf
