Being an open access on-line journal, PIER gives great prominence to special issues that draw together significant and emerging works to promote key advances on specific topics. The special issues are...

Reconfigurable Intelligent Surface (RIS) is considered to be an enabling technology for the next generational leap in mobile communications. Similar concepts of utilizing a large surface of which the reflection angle can be artificially varied for improving both the spectrum and energy efficiency may go by other names, such as large intelligent surface, programmable metasurface or intelligent reflecting surface (IRS). Recently, the Industry Specification Group by the European Standards Organisation ETSI has agreed on the name RIS.

This special issue aims to present recent advances or insightful reviews for electromagnetic theory especially in interdisciplinary fields and emerging areas. Pure experimental or numerical works without deep theoretical analyses are not suitable for the special issues.

This Special Issue aims to invite researchers to contribute original research papers, dealing with all aspects of Multiphysics modeling/computation in advanced devices and integrated circuits.

This Special Issue aims to invite researchers to contribute original research papers, dealing with all aspects of electromagnetic scattering and exploring the exotic interactions between electromagnetic waves (e.g., photons & plasmons) and various emerging artificial material systems (e.g., photonic crystals, metamaterials/metasurfaces, 2D materials/van der Waals heterostructures, nonlinear materials, ENZ material).

This Special Issue aims to invite researchers to contribute original research papers, dealing with all aspects of topological classical waves.

This Special Issue focuses on recent advances in remote sensing theory, novel applications and methods, and innovations in sensor and system. The aim is to provide both translational and interdisciplinary links between researchers/practitioners to further advance remote sensing research and its applications. Original research and novel application papers in all aspects of microwave and optical remote sensing are welcome.

This Special Issue aims to invite researchers to contribute original research papers, dealing with all aspects of machine learning in electromagnetics.

This Special Issue aims to invite researchers to contribute original research papers, dealing with all aspects of quantum metasurfaces.