Waveguides for high-frequency signals have traditionally been realised using bulky three dimensional structures, e.g. coaxial cable, rectangular/circular waveguides supporting non-TEM modes, etc). However, recently there has been some interest in developing planar waveguiding structures using metasurfaces. Metasurfaces are two-dimensional equivalents of metamaterials, which are structures that contain a repeating microstructure - the elements of which are much smaller than a wavelength. Although the basic design of metasurfaces is well understood, high-performance designs (which have low loss and low dispersion) can be challenging to realise.
The aim of this project is to (i) identify appropriate metasurface implementation strategies; (ii) design and model a metasurface waveguide (including straight sections and bends) using CST Studio Suite/Microwave Studio; and (iii) fabricate the design(s) using standard PCB technology and measure their performance.
Undergraduate
Design(s) for a planar metasurface waveguide.
Prerequisite ELECTENG307, corequisite ELECTENG721.
Lab allocations have not been finalised