A Wideband Reflector-Backed Antenna for Applications in GPR

Table 1

Proposed antenna’s comparative analysis with already existing antennas.

Reference	Shape	Antenna dimensions (cm^3)	Frequency (GHz)	Peak gain (dBi)	Complexity/ease of manufacturing	Reflector type
[4]	Horn	25 × 18 × 18	0.6 to 6	9.91	Complex/costly	No
[6]	Cone	15.8 × 15.8 × 17.4	0.5 to 3	4.4	Complex/costly	No
[7]	Sinuous	10 × 10 × 9	2 to 6	7	Complex	No
[9]	Slot	10.7 × 7 × 5	1.4 to 3.5	6	Simple	Planner
[11]	Bowtie	27 × 18 × 11	0.5 to 3	12	Complex/costly	Cavity
[12]	Bow tie	20 × 15 × 4	0.98 to 4.5	10.3	Simple	Cavity
[26]	Patch	20.5 × 20.5 × 12	0.433	6	Simple	Reactive impedance surface(RIS)
Proposed design	Tapered feed	18 × 22 × 5	0.6 to 4.6	7	Simple	Planner