A Compact Dual-Band RFID Tag Antenna Mountable on Metallic Objects

Table 1

Measured maximum read range with and without metallic objects.

Operating bands	Measurement condition	Maximum read range
UHF band; (917~923.5 MHz)	Without metallic object	5.15 m
	0.5λ × 0.5λ copper plate	5.50 m
	1.0λ × 1.0λ copper plate	5.50 m
MW band; (2.4~2.45 GHz)	Without metallic object	13.50 m
	1.33λ × 1.33λ copper plate	14.15 m
	2.67λ × 2.67λ copper plate	14.15 m