Performance Analysis of a Compact High Gain Antenna for RF Energy Harvesting in 1.71GHz to 12GHz

The manuscript presents a performance analysis of compact high gain planar ultra wideband receiver for RF energy scavenging in the range 1.71GHz to 12GHz. This novel band covers the majority of commercial RF bands from GSM1800 (UL: 1.71GHz to 1.785GHz) to X band. The design helps to receive the unutilized RF in those frequencies for energy scavenging. The design is adapted on the FR4 substrate with dimensions of 41×31×1.6mm
³
. It produces S
₁₁
≤ -10dB in the range 1.71GHz to 12.14GHz, highest radiation efficiency is 97% at 1.71GHz and maximum peak gain is 5dBi at 9.56GHz. The analyses of modified grounds, different slots in the patch as well as in modified ground are studied. The proposed work is simulated using ANSYS HFSS software. The printed prototype is compared with simulated one.