Bio-Inspired Korean Striped Maple Leaf (Acer Tegmentosum) Microstrip Monopole Design Targeting UWB Applications

In this research paper, work relating to microstrip monopole antenna is carried out. The objective is to aim for the ultra-wideband range which is 3.1 to 10.6 GHz. For this, a bio-inspired novel Korean striped maple leaf structure; under the binomial name, Acer Tegmentosum is considered. The design is carried out on a ground plane with dimensions 60 × 60 mm (W × L). The substrate used is FR4 epoxy with dielectric constant 4.4. The overall leaf dimension was taken to be 43.48 mm in terms of width with two adjacent petals of length 25.12 mm each and a center petal of length 16.42 mm. The maple leaf patch is supported by a partial ground of dimension 60 × 13.5 mm (W × L). Simulations were done and bandwidth achieved was 9.62 GHz (152.98%) from 1.47 GHz to 11.1 GHz with a peak gain of 6.53 dB. Comparisons are drawn for different antenna parameters. The proposed monopole structure is also fabricated and tested where a good agreement between simulated and measured results was seen.