Ultra-Compact Hexa-Band Bio-Inspired Antenna for 2G, 3G, 4G, and 5G Wireless Applications

Abstract

A new ultra-compact multiband Bio-inspired antenna using a Vitis vinifera half-leaf-shaped with embedded arc-slits as the radiating patch is presented in this paper. The miniaturization is realized using the asymmetric feeding technique. Duroid 5880 with a dielectric constant of 2.2 and a thickness of 1.57 mm is used as the substrate of the proposed structure. The antenna dimension is 0.21λd×0.11λd at 1.95 GHz. The design is made up of five arc-slitted Vitis vinifera semi-leaf-shaped radiating patch fed through a 50 Ω Asymmetric Microstrip Feedline (AMF) for multiband configuration. The analysis, simulation, and fabrication of the proposed antenna are herein presented. This is the smallest sized antenna with the six simultaneous bands in the literature as far as we know. The compactness, suitable radiation pattern, acceptable gain, and radiation efficiency of the proposed antenna makes it a suitable candidate for 2G, 3G, 4G, and sub-6GHz 5G wireless technologies.