Improvement in the Gain of UWB Antenna for GPR Applications by Using Frequency-Selective Surface

Table 3

Comparison of FSS-based antenna with previous work.

Ref no.	Dimension of antenna (millimetre)	Dimension of FSS (millimetre)	Peak gain (dB)	Bandwidth (GHz)	FSS surface
[26]	30	75	8	3–11.6	Dual
[29]	20	84	8.7	4.7–14.9	Single
[30]	30  31.9  1.6	33  33  1.6	7.9	2.6–11.9	Single
[34]	25	90	7	3–10	Dual
[38]	10	102	9.5	3–10	Dual
[39]	25	124	8.2	6.5–9.5	Dual
[37]	45	45	3.2	3–12	Dual
[40]	28	150	7.5	3–10.6	Dual
[41]	38.3	44	6	2–11	Dual
[42]		—	16.71	1.75–7.43	Metamaterial inserted
[43]		—	—	3–10	Metamaterial inserted
Proposed	30	62.5	8.3	3–12	Single