Design of planar slot-loaded antenna for energy harvesting

In this paper, a multi slot-loaded microstrip dual band antenna is presented for energy harvesting applications at 2.4/5.8GHz Wireless Local Area Network (WLAN) bands. The incorporation of C-shape slot, rectangle slot and a pair of I-shape slots on patch antenna was supportive for excitation of dual distinctive resonance bonds. Such integration was also found effective in delivering good impedance matching for the proposed dual band antenna, with 24.24dB return loss recorded at lower resonance 2.445GHz and 39.9dB return loss at higher resonance 5.805GHz. The total efficiency of proposed antenna exceeded 80 percent with a realized gain of more than 6.4dBi at both resonances.