The Dynamic Range Maximisation of Shielding Effectiveness Measurements

Abstract

The article concerns problems connected with measuring shielding effectiveness of small shielded chambers. In the article the measuring procedure and the position for measuring shielding effectiveness of small shielded chambers have been described. The described method uses a selective measuring receiver and signal generator. Particular attention was paid to maximization of dynamics range in measuring shielding effectiveness of shielded chambers through minimization of noise level in measuring receiver obtained as a result of narrowing the RBW filter of intermediate frequency, through averaging the received noised test signal and through increasing the level of probing signal.