Material reflector for cellular/PCS array applications

Abstract

A material reflector composed of a metallic ground plane, resistive sheets and, if necessary, elongated rails along the edges of the sheet reflector is presented. The optimized design achieves a front-to-back ratio greater than 30 dB with minimal change in pattern beamwidth. ABSTRACT: Traffic load conditions can excite relaxation oscillations in a chain of gain-clamped erbium-doped fiber amplifiers (EDFA) in packet switched WDM optical networks. Crosstalk interaction dependson the delay between packets and cumulates along the amplifier chain, resulting in great power variations between packets, impairing system performance.