A Stacked Microstrip Antenna Array with Fractal Patches

Table 1

Detailed data of the antennas mentioned previously.

Literature number	Number of layer	Number of array elements	Gain (dBi)	Bandwidth	Profile	Manufacture difficulty	Cost
[3]	8	1	7.4	52%	High	Hard	High
[4]	2	4	12.4	25.6%	Low	Easy	High
[5]	2	1	—	35%	Low	Easy	High
[8]	2	1	8.3	20%	Low	Easy	Low
[9]	4	4	15.95	20.45%	High	Hard	High
[10]	4	1	8.5	44.4%	High	Easy	Low