Synthesis of Quadband mm-Wave Microstrip Antenna Using Genetic Algorithm for Wireless Application
Round 1
Reviewer 1 Report
11. A hard space should be inserted between the numerical value and the measurement unit (lines 12, 13, 23, 73, 78).
22. A space should be inserted between the full stop and next sentence (lines 49, 89).
33. The editing error on line 78- Original text “… 3.4mm*0.9mm…...". Corrected text “… 3.4 mm X 0.9 mm…...".
4. Authors should add more textual description to the content of the article regarding the use of HFSS simulator and MATLAB software I the process of antenna designing.
Author Response
Point 1: A hard space should be inserted between the numerical value and the measurement unit (lines 12, 13, 23, 73, 78).
Response 1: The authors accept the feedback and insert space between the values and unites
Point 2: A space should be inserted between the full stop and next sentence (lines 49, 89).
Response 2: The authors admit the mistake and modified based on the reviewer comment.
Point 3: The editing error on line 78- Original text “… 3.4mm*0.9mm…...". Corrected text “… 3.4 mm X 0.9 mm…...".
Response 3: The authors acknowledge the comment and corrected it
Point 4: Authors should add more textual description to the content of the article regarding the use of HFSS simulator and MATLAB software I the process of antenna designing.
Response 4: The authors accept the comment and more explanation on them from line 60 to line 68
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The paper proposes a the design of quad-band millimeter-wave (mm-wave) microstrip patch antenna through the usage of a binary-coded genetic algorithm applied to a dicretized rectangular conducting surface. The obtained radiation performance is compared to that obtained adopting alternative approaches present in the literature.
The work is interesting and properly organized. Some adjustments may be inserted to make the insights more convincing and improve the quality of the presentation. The main issues found by this referee are listed in the following of this review.
1) A wider literature overview regarding the evolution of mm-wave patch antennas for 5G/6G applications should be includes, since many further works have addressed this issue (see, for example, (i) “Reconfigurable phased antenna array for extending CubeSat operations to Ka-band: Design and feasibility,” Acta Astronautica, 2017; (ii) “A wideband patch antenna for 5G,” in IEEE Int. Symp. Antennas Propag. and North Amer. Radio Science Meet., 2020; etc.).
2) A deeper analysis of the impact of the grid size should be inserted. More precisely, adopting a 7x7 and then a 12x12 discretization, how the radiation patterns, the return loss and the algorithm processing time changes? This aspect is relevant to clearly show if the 6x6 choice is sufficient to obtain an accurate result with respect to a successive experimental implementation.
3) A discussion regarding the applicability of the adopted generic strategy (for examples, bow-tie patches discretized by triangles) to other geometries would be interesting.
4) The writings in the radiation pattern figures (ticks, legends, labels) should be enlarged to improve their readability.
Author Response
Point 1: A wider literature overview regarding the evolution of mm-wave patch antennas for 5G/6G applications should be includes, since many further works have addressed this issue (see, for example, (i) “Reconfigurable phased antenna array for extending CubeSat operations to Ka-band: Design and feasibility,” Acta Astronautica, 2017; (ii) “A wideband patch antenna for 5G,” in IEEE Int. Symp. Antennas Propag. and North Amer. Radio Science Meet., 2020; etc.).
Response 1: The authors accept the feedback and modify the literature based on the reviewer comment. Please refer line 32-line 37
Point 2: A deeper analysis of the impact of the grid size should be inserted. More precisely, adopting a 7x7 and then a 12x12 discretization, how the radiation patterns, the return loss and the algorithm processing time changes? This aspect is relevant to clearly show if the 6x6 choice is sufficient to obtain an accurate result with respect to a successive experimental implementation.
Response 2: The authors accept the insightful comments on our article and tried to include the effect of the grid size on the algorithm and the antenna performance. By proofing from other published works from the same author, kindly refer line 99 to 105
Point 3: A discussion regarding the applicability of the adopted generic strategy (for examples, bow-tie patches discretized by triangles) to other geometries would be interesting.
Response 3: The authors admire the comments and other forms of discretized geometry was published by the same authors in circular form. The difference is explained on circular and rectangular grids. Please, refer line 97-99.
Point 4: The writings in the radiation pattern figures (ticks, legends, labels) should be enlarged to improve their readability.
Response 4: The authors acknowledged the feedback and modified the figure (ticks, legends, labels) a bit larger.
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
The paper is the revised version of a previously submitted manuscript in which the authors present the design of a quad-band millimeter-wave patch antenna through the adoption of a binary-coded genetic algorithm over a dicretized rectangular conducting surface.
With respect to the previous version, the quality of the work has been improved and all the issues signaled by this referee have been addressed. Thus, in the reviewer's opinion, the study is suitable for publication.
