Integrated radiation and scattering performance of a multifunctional artificial electromagnetic surface

Area of Science:

• Electromagnetics
• Materials Science

Background:

• Traditional artificial electromagnetic surfaces (AEMS) primarily focus on scattering performance.
• Integrating radiation capabilities into AEMS designs presents significant challenges while maintaining desired electromagnetic characteristics.

Purpose of the Study:

• To propose and realize a multifunctional AEMS with simultaneously optimized radiation and scattering performance.
• To develop a novel AEMS design strategy that incorporates antenna principles for enhanced functionality.

Main Methods:

• AEMS elements were designed with integrated feeding structures, inspired by antenna design concepts, to enable radiation.
• Two distinct AEMS element types were engineered for wideband low-scattering performance.
• A chessboard configuration was employed to arrange the different AEMS elements.

Main Results:

• The proposed AEMS design successfully integrates both radiation and scattering functionalities.
• Simulated and measured results validated the effectiveness of the design approach.
• The core electromagnetic characteristics of the AEMS elements were largely preserved with the addition of radiation capabilities.

Conclusions:

• The developed method provides an effective strategy for designing multifunctional AEMS.
• This research enables the simultaneous achievement of radiation and scattering performance in a single AEMS.
• The findings pave the way for advanced applications requiring versatile electromagnetic surfaces.