Efficient setup for the measurement of transmission-coefficients with a single-room anechoic chamber

This paper describes a new setup for the measurement of transmission coefficient of materials. The proposed setup is a cheap and efficient way to obtain a good isolation between the transmission and reception antennas with a single room anechoic chamber. The dynamic range is better than 60 dB between 3 to 7 GHz and better to 40 dB in the range 0.7-3 GHz. Moreover, this measurement bench is easy to install and does not require modifying the configuration of the absorbents of the anechoic chamber. It is a excellent technique to measure the performances of Frequency Selective Surfaces (FSS).