Author(s)

S. Felolo

Abstract

Because of its high transmitted power, a long range surveillance radar system is a critical item concerning safety above all in public opinion. In its effort towards quality and customer’s satisfaction, AMS has developed a model of radiation which, starting from project simulation of the antenna pattern, allows one to calculate the average power density at any distance from the system, thus allowing one to determine possible clearances (minimum distances from buildings or protected areas) or helping in the selection of radar sites. Keywords: radio frequency, microwave, emission, evaluation. 1 Introduction Radio Frequency and Micro Wave devices are widely spread today and the effect of EM radiation is a concerning issue which involves mobile phones, TV antennae and other communication systems. Safety related aspects are growing in importance even in contractual requirements, as customers ask contractors for a great effort in system safety and hazard analysis. This is true in particular for a surveillance radar system since it is required to transmit a very high power to achieve full performance for coverage distances of up to 500km. For AMS great attention to this matter comes from its past tradition (as Selenia) about research in Electromagnetic Compatibility (EMC). The AMS RAT-31DL system is an advanced D-Band, solid state phased array 3D surveillance radar whose features represent the state of the art in long range radar technology: multiple independent pencil beams, pulse compression and a monopulse technique allow very good range accuracy and resolution in the whole coverage volume. Radar antenna can be mechanically tilted to reach

Keywords

radio frequency, microwave, emission, evaluation.