DefinePK

Abstract

This paper presents the application of vectorial finite element-neural network method along with automatic rectangular mesh generation for the prediction of the resonance fields in two dimensional model of concrete room. This field may come from an electromagnetic transmitter such as two-way radio transmitter, amateur radio transmitters, or paging transmitters. The influence of placing a conductive window screen is studied. The electric field is calculated inside the room with various situations: room with door and window, with two windows and furniture, with door and window in addition to furniture, and with a fine metallic window screen. The shielding effectiveness of the window screen is evaluated for different incident angles of the wave. It is found that window screen can provide about 30 dB shielding effectiveness.