Design of Wideband Circular-Slot Antenna for Harvesting RF Energy

The design of a wideband circular-slot antenna for RF signal harvesting is reported in this work. proposed frequency range accommodates the leading contributors to available signals accessible by RFEH node. These widely utilized bands comprise GSM1800, UMTS2100, Wi-Fi2.450, and LTE2600. geometry comprises circular-ring radiating component filled with two orbital circular rectangular slots. At bottom plane, pair semirectangular-circle slits are integrated. presented designed on double layer 1.6 mm high FR-4 substrate. source achieved simulated measured impedance bandwidth (BW) 1.510 1.590 GHz, amounting 68% 73% fractional BW (FBW), covering -10 dB reflection coefficient (|S11|) between 1.640 3.150 GHz 1.550 3.140 that order. realized maximum gain 1.88, 2.13, 2.81, 3.22, 4.32 dBi 1.800, 2.100, 2.450, 2.650, 3.20 respectively. dimension printed board 0.61 λ g × 0.70 id="M2"> . improved obtained from parasitic patch coupled defected ground structure (DGS) better energy an ambient environment.