Dual-Band RFID Antenna for 0.92 GHz Near-Field and 2.45 GHz Far-Field Applications

Figure 4

The S11 performances of the antenna at UHF and S band. −10 dB bandwidth of measurement results is marked in two pictures: (a) UHF band, marker 1 = 914 MHz, marker 2 = 932 MHz; (b) 2.45 GHz, marker 1 = 2.37 GHz, marker 2 = 2.48 GHz.

(a)

(b)