Obtencion de un perfil de retardo de potencias en un entorno "indoor" mediante el uso de un analizador de redes

Abstract

The results of a new method in wide band indoor channel measuremenrs are presemed in This paper. Multipath propagarion of this channel has been studied and compared jor two type of medium-size buildings in the 900 M Hz and 1800 MHz bands. The new measuremenr se1-up includes 1he use of a network analizer sweeping a bandwidth of 50 M Hz (in the 900 M Hz band) and 100M Hz (in the 1800 MHz band). The measured channel presents a delay spread exrending over a range up to about 200 ns and RMS De/ay Spreads of up 10 about 50 ns. Other measured pararneters are the Delay Spreads to -1O dB ,-20 dB , -30 dB from the maximum of the Power Delay Projile and the windows with the 50% and 90% of the total energy.