Experimental Study on RFID Antenna Reading Areas in a Tunnel System

Table 2

Compiled table of antenna 2 measurements.

Pole	tag	Distance	RSSI	Pole	tag	Distance	RSSI	Pole	tag	Distance	RSSI
VS 311	526	146,775	69,5
				290	536	127,216	67	OS 290	532	127,261	66,5
								OS 280	531	117,867	67
				270	532	107,788	67	OS 270	533	107,985	71
VS 260	526	97,523	66,5					OS 260	532	97,56	74
								OS 250	533	88,148	70,5
VS 240	526	77,697	73,5					OS 240	532	77,772	67,5
VS 230	536	67,146	70	230	532	66,849	78,5
VS 220	526	58,025	75	220	533	57,713	72,5	OS 220	532	58,133	76
VS 208	536	45,054	72	210	536	45,737	80,5	OS 208	533	45,255	84
VS 200	529	37,812	90,5					OS 200	530	38,12	93,5
VS 190	532	24,503	87,5	190	532	28,434	90,5	OS 190	531	26,372	79,5
VS 180	529	18,088	88,5	180	533	18,028	94,5	OS 180	530	18,146	92,5
VS 170	532	7,901	95	170	536	8,709	114,5	OS 170	531	8,933	105
				160	526	−3,165	116,5
VS 150	532	−12,626	85,5	150	532	−12,648	110	OS 150	531	−13,372	99,5
VS 145	500	−16,819	92,5					OS 145	540	−16,896	78
VS 140	529	−22,091	85	140	533	−21,993	92,5	OS 140	530	−23,67	100
VS 139	533	−24,317	77,5	130	536	−31,92	81	OS 138	542	−22,825	93
VS 120	533	−42,82	75	120	526	−41,578	86,5	OS 120	542	−37,587	82,5
VS 110	529	−50,271	77,5	110	532	−51,676	71	OS 110	531	−49,846	69,5
VS 105	533	−55,585	82					OS 105	530	−55,428	71,5
VS 100	529	−61,236	72	100	533	−61,157	70	OS 100	540	−57,309	84,5
VS 97	533	−65,029	74	90	536	−71,231	70	OS 97	541	−62,438	75,5
				80	526	−80,893	66,5
VS 57	529	−102,843	67	70	532	−91,608	67,5
VS 17	533	−147,427	70,5