With possible new use cases and demanding requirements of future 5th generation (5G)
and beyond cellular networks, the future of mobile communications sounds promising …

This study introduces the concept of an intelligent wall as an autonomous part of a smart
indoor environment for cognitive wireless networks. Here, an intelligent wall is a wall inside …

This paper introduces the concept of an Active Wall (a wall equipped with an active
frequency selective surface) as a powerful instrument to control the propagation …

This paper proposes a 2-b multifunctional active frequency selective surface (MAFSS)
whose structure is made up of two metallic layers printed on both sides of an F4BME …

A frequency selective surface (FSS) that is electronically switchable between reflective and
transparent states is tested. It can be used to provide a spatial filter solution to reconfigure …

We introduce an innovative 3-D mechanically tunable frequency selective surface (FSS),
which is inspired by the classical flat square slot FSS. The proposal improves the …

This article presents a review of frequency-selective structure (FSS) manufacturing materials
and production methods ranging from the common printed circuit board (PCB)-based …

A switchable frequency selective surface (FSS) made of square loop slots and PIN diodes
connected to a novel separate biasing circuit is presented. The structure uses a very thin …

ABSTRACT A novel active frequency selective surface (AFSS), which transmits 2.45 GHz
WLAN signals in the ON state and functions as a band‐stop filter to shield those signals in …

This paper deals with a new approach to the control of the propagation environment in
indoor scenarios using intelligent walls. The intelligent wall is a conventional wall situated …