Metamaterial – Based Microwave Band – Stop Filter for Wi – Fi Blocking Window

In this work, we propose a novel Wi – Fi blocking window based on metamaterial microwave band – stop filter. Made of glass and fluorine – doped tin oxide (FTO), the proposed window is transparent for visible light, allows other RF waves to go though significantly while completely blocks the Wi – Fi signal. With such property, this window can be used for confidential purpose.