A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

Table 3

Comparing the results of this research with a number of recent reference studies.

Ref.	Year	Resonant frequency (GHz)	Gain (dB)	Return loss (dB)	Antenna structure	Design method
8	2022	7.5; 17	2.2	−35	Fractal patch antenna with a COVID-19 shape	HFSS
28	2022	3.5	2.6	−40	CSRR in the patch and 3  3 metamaterial structures in the ground	HFSS
29	2021	7.28	10	−19	Fractal patch antenna and four SRR structures around the patch	FEKO
30	2021	2.4; 5.3	2.67	−35	Sierpinski fractal antenna and ground plane with slots	CST
1	2021	2.5, 5.1; 6.7, 7.7; 8.6, 9.5; 11.3	5.6	−13.8, −10.84; −13.48, −23.24; −12.88, −14.17; −26.09	Fractal antenna and metamaterial structure under the patch	HFSS
6	2021	2.4	6	−26	Minkowski fractal antenna and metamaterial structure under the patch	HFSS
This work	2022	2.7, 5,7.75	9	−14, −35, −20	Fractal patch antenna and metamaterial structure under the patch	HFSS and mathematical model