Radiating Elements Using Novel Configurations Based on Leaf Structures

Several novel configurations based on leaf structures are proposed for generating radiating elements. The next leaf architectures (found in nature) are assessed and studied: Phyllanthus poumensis Phyllanthaceae, Desfontainea spinosa Desfontaineaceae, Rubus mesogaeus Rosaceae, Adenia heterophylla Passifloraceae, Leepierceia preartocarpoides Proteales and Tetracera rotundifolia Dilleniaceae. Each leaf architecture generates a radiating element by processing the image of plant leaf. The contributions of this proposal are: Six new antenna designs are provided with interesting characteristics in electromagnetic radiation and frequency performance, and a comparative study is made between the performance of the proposed designs and the existing work found in the literature. Simulation and experimental results are provided to evaluate and discuss each leaf antenna. An analysis in detail is provided considering parameters such as reflection coefficient, VSWR, antenna gain, current distribution and radiation pattern. The prototype and the experimental results (of each leaf architecture) are assessed considering the impact on the design of radiating elements and some wireless technology applications.