Metastructures and Antennas with Enhanced Properties for Modern Microwave and Millimeter-Wave Applications

Dear Colleagues, 

Recent advances in telecommunications demand higher data rates, spectral bandwidth, and lower latency. For that reason, higher frequency ranges are being explored leading to new challenges in design and manufacturing. Modern devices require better accuracy in fabrication, greater compactness, and improved efficiency. Metamaterials are artificial structures that allow tailoring the propagation, scattering, and radiation of electromagnetic waves and have emerged as a candidate to fulfill the aforementioned requirements. They have also been and are still being widely used in the microwave and antenna community for the realization of multiple functionalities, such as absorption, filtering, reconfigurability, scattering control and polarization handling.

The improvement of fabrication techniques during the last decade has allowed for the development of metastructures based on more complex designs. These new types of metastructures usually gain accuracy, exploit the third spatial dimension (3D devices) as well as the temporal dimension (4D devices) or comprise cells with exotic shapes. They are expected to guide a novel generation of devices for the functionalities mentioned above.

This Special Issue is focused on, but not limited to, the following topics:

1. Modern communication systems and devices for microwave and mm-wave frequencies;
2. Metamaterials and frequency selective surfaces (FSS) with enhanced properties. Inclusion of higher symmetries and temporal modulations;
3. Antennas: phased arrays, microwave lenses, leaky-wave antennas, etc.;
4. Novel manufacturing techniques such as additive manufacturing (3D printing and inkjet printing) and micromachining;
5. Analytical and computational methods applied to the analysis of antennas and periodic structures (MoM, equivalent circuits, mode matching, conformal transformations, etc.).

Prof. Dr. Pablo Padilla de la Torre
Prof. Dr. Juan F. Valenzuela-Valdés
Dr. Carlos Molero Jiménez
Dr. Antonio Alex-Amor
Guest Editors

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