Microwave spatial-temporal channel characteristics measured at base station in an urban environment

The propagation measurements were performed in an urban area at 8.45 GHz. We examined the characteristic of delay and angle spreads of main arrival waves at the base station receiving antenna. The delay spread tends to increase with the angle spread. Both angle and delay spreads in NLOS environments were larger than those in LOS environments. Delay spreads in NLOS environments are greater those at the points in LOS environments yielding the same angle spread.