Complexity Reduction of a Reconfigurable U-Koch Microstrip Antenna Using Graph Models

摘要

Reconfigurable antennas are divided into two categories: Multi-part antennas and single-part antennas. A multi-part antenna is composed of an array of identical or different elements (triangular, rectangular, etc...) [1] where a single-part antenna is composed of one part with electronic components bridging over slots that are incorporated in its structure. Many designers resort to different electronic components such as RF MEMS [2], capacitors [3], or other elements to achieve the reconfiguration of their antenna systems. The incorporation of electronic components on an antenna structure increases its complexity [1] and decreases the feasibility of its reconfiguration. An approach based on graph models is developed in [1] to investigate a multi-part antenna and remove the redundancy from its topology. In this paper, another approach based on graph models is used to study a single part antenna previously designed in [4]. The redundant switches are removed and the antenna is redesigned with a much lower complexity to achieve the same desired performance.