Multi–objective optimisation of metamaterial antenna

Abstract

Passive manipulation of radiation is key to many modern technologies for sensing and communication. While many techniques exist to design electromagnetic systems that perform a single desired function, the design of systems which are multi–functional remains challenging. We have developed a versatile semi–analytic framework for designing multi–functional metamaterials to shape antenna radiation. To demonstrate the versatility of this method we design two devices: one which re– shapes the radiation pattern of an emitter while also enhancing the efficiency, and one which beams radiation into different directions depending upon the polarisation of a driven element.