Patch antenna bio-inspired on wayfaring-tree (Viburnum lantana) for applications in 2.4 GHz

This paper presents the design of a patch antenna with structure bio-inspired by the Wayfaring-tree (Viburnum lantana) leaf chosen from the European native flora, for applications in wireless communication systems. The antenna was manufactured in low-cost FR-4 substrate, fed by a microstrip line using the hybrid technique with matching impedances of 50Ω. Specifically the antenna is designed for operation in the 2400-2483.5 MHz range of the IEEE802.11b, g, n (Wi-Fi) and IEEE802.15 (Bluetooth). Ansys Designer® simulator software was used for numerical characterization and a vector network analyzer for the experimental characterization. The proposed antenna presents a bandwidth of 61 MHz, measured reflection coefficient of -37.14 dB at 2.44 GHz, and gain of 3.68 dBi in the broadside direction.