GPR antennas

[rajesh]

hi every one I'm confuse
1/2
http://www.geoscanners.com/gcb.htm

	GCB-100	103MHz	depth 15m	0.5m	50-350ns	460x460x255	11.5kg
	GCB-200	210MHz	10m	0.25m	30-200ns	360x330x157	3.5kg
	GCB-300	307 MHz	8m	0.15m	20-120ns	380x295x160	2.6kg
	GCB-400	380MHz	4m	0.125m	15-75ns	320x255x150	1.65kg
	GCB-500	480MHz	2.5m	0.1m	10-50ns	320x255x150	1.7kg
	GCB-700	675MHz	1.5m	0.07m	7-35ns	320x255x150	1.35kg
	GCB-1000	1000MHz	1m	0.05m	5-25ns	248x200x97	1.05kg
	GCB-1500	1500MHz	0.75m	0.015m	3-20ns	248x200x97	1.05kg
	GCB-2000	2000MHz	0.4m	0.0125m	2-10ns	248x120x97	1.05kg
	GCB-3070	315MHz	8m/1.5m	0.15m/0.07m	20-120ns/7-35ns	472x330x177	4.35k

[DT-75]

UWB Air-Coupled Antenna for Ground Penetrating Radar
https://repository.tudelft.nl/island...datastream/OBJ

[Davor]

The thesis antenna is only one possibility of making a wideband structure with preferable features. Generally it stands that the most efficient structures that perform well in the air are not performing well with GPR due to different delays of conveyed frequencies. These antennas are excited with a pulse, and what happens next is all up to the antennas.

[homefire]

More of a issue with the Media the signal propagating in .

[Davor]

You can't change the medium, so it is a given. You can only change antenna behaviour, and partly signal processing... which is precisely what you wish to avoid. So antenna is the only true bottleneck here.