Abstract

Nowadays, the mobile phone base stations are situated everywhere due to huge increment in mobile phone usage around the world. However, these mobile base stations have increased the radio frequency exposure level creating issue of health symptoms as the scientific studies has investigated. So a triple band stop frequency selective surface has been proposed with single sided FR-4 substrate inbuilt with three-patch loops for reducing the RF exposure levels inside the building walls by transforming the building walls to a FSS. This designed FSS allows other signals such as radio and television signals and filters out the global system for mobile communication included ISM band for GSM with WiMax and WLAN. The proposed FSS led to attenuation in 1.8 GHz, 3.5 GHz and 5.5 GHz mobile communication band. The structure of the designed FSS has been realized in the CST Microwave studio as well as verified in the ANSYS HFSS software. The simulated results have a stable frequency response for transverse-electric (TE) and transverse-magnetic (TM) mode with angle variation of incident wave.

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