Matching improvement of an asymmetric biomimetic antenna array for source locating

This paper presents the design and analysis of an antenna array based on hunting capability of animals. An antenna array was built with three elements, where each element has natural resonance around 2 GHz. Nevertheless, aiming miniaturization, the antenna elements of the array are spaced with d << λ, where d is distance between the antennas. For this work, the fly Ormia Ochracea has been served as inspiration in the development of an initial two-element antenna array. The final structure is an asymmetric three-element array built to increase the antenna gain. A planar antenna array prototype with two bowtie dipole elements was built where an impedance matching network provides operating frequency around 350 MHz. An asymmetry and a matching network were introduced to reduce the coupling.