Research Article

Fabrication of a Flexible RFID Antenna by Using the Novel Environmentally Friendly Additive Process

Table 3

Antenna measurement result without IC.

Temperature (°C)Time (min)SubstrateImpedance (Ω)Maximum gain (dBi)Maximum efficiency (%)

Copper foil version0.05−3.517.75
755PET40−2.2518.41
7510PET3.2−1.9718.88
7515PET0.826−1.1322.55