Energy and Communication Efficient FSS for Equivalent Model of Hard-Coated Energy Saving Glass

Abstract

An energy and communication efficient FSS is presented for equivalent model of ESG with hard coating. An FSS with second order band-pass response has been realized by full wave 3D simulations and results have been imitated using an equivalent circuit model to calculate the value of lumped elements. The design is composed of three cascaded FSSs with two glass layers of 6 mm each in between. Due to this topology the transmission of useful RF/microwave signals has been improved for a wider bandwidth, increased thermal insulation, stable frequency and polarization at oblique incidence and security for WLAN at 2.45 GHz.

Frequency selective window blinds for indoor WLAN shielding

“…To shield WLAN signals, researchers have proposed etching FSS structures on window panes and melding them with energy-saving glass. 4,8,[16][17][18][19][20] A flower-shaped FSS on a glass window was proposed in Farooq et al 4 for EM shielding at 2.45 and 5.5 GHz bands. The structure lacked angular stability at incident angles greater than 45°for both, transverse electric (TE) and transverse magnetic (TM) modes.…”

“…As it has been observed by Zhang and Hwang, 15 reinforced concrete walls attenuate WLAN signals up to 22 dB, while most of the signals are propagated through windows and doors. To shield WLAN signals, researchers have proposed etching FSS structures on window panes and melding them with energy‐saving glass 4,8,16–20 . A flower‐shaped FSS on a glass window was proposed in Farooq et al 4 for EM shielding at 2.45 and 5.5 GHz bands.…”