부산대학교 도서관

Modern communication and sensor systems are in need of antenna front ends providing a high angular resolution. This requirement inherently leads to large and sometimes bulky antenna systems. Biomimetic antenna arrays (BMAAs), however, can provide a high angle estimation performance while occupying little space. The concept adapted from the hearing system of the fly Ormia ochracea has become of great interest recently. While most of the latest works focused on BMAAs with two antenna elements only, this article presents a comprehensive general theory for designing BMAAs with an arbitrary but even number of antenna elements. A scalable equivalent electrical circuit and an associated modal analysis are presented, and the effects of varying levels of biomimetic coupling are highlighted. The methodology presented in this article is applied to the design of a BMAA with four antenna elements at 76.5 GHz of which a prototype was fabricated and measured using radar measurements.