Metamaterials and Metasurfaces for Microwave and THz Applications

Dear Colleagues,

With the rapid development of devices working at microwave and THz ranges, metamaterials and metasurfaces have attracted increasing attention. For instance, in wireless systems (such as communication, sensing, and wireless power transfer applications), metamaterials play an essential role in antenna design, where sub-wavelength unit cells are combined with standard antenna topologies to enhance their performance in terms of bandwidth, gain, polarization conversion, reconfigurability, and many other aspects.

Even in the aforementioned applications, devolvement is not restricted to antenna design but includes other system perspectives, such as suppressing mutual coupling in antenna arrays, which is crucial for MIMO systems, and other system components, such as guided wave components and filters, which can be made more efficient and compact via the use of metamaterials. Although early research on metamaterials was largely oriented towards systems in the microwave and optical regions, recently it has been extended to millimeter-wave and THz frequencies as candidates for fulfilling the THz gap where efficient modulators, switches, and other components can be designed.

This Special Issue is dedicated to recent advances in the development of systems based on metamaterials in the microwave and THz ranges. Topics of interest include, but are not limited to, the following:

• Metasurface antennas;
• Millimeter-wave and THz metamaterials;
• Metasurface-inspired MIMO systems;
• Characteristic mode analysis (CMA) of metasurfaces;
• 3D printing metamaterials;
• Energy harvesting and wireless power transfer using metamaterials;
• Numerical modelling of metamaterials;
• Metamaterial polarization converters;
• Metamaterial waveguides and filters;
• Low-cost metamaterial structures;
• Metamaterials for physics applications;
• Non-uniform metasurfaces.

Dr. Kerlos Atia Abdalmalak
Prof. Dr. Raed Shubair
Dr. Ayman Althuwayb
Prof. Dr. Bal S. Virdee
Guest Editors

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