Space-Diversity Engineering

Abstract

Vertically separated antennas are recommended to increase the transmission availability of line-of-sight microwave links by reducing the duration and frequency of multipath fading events. The emphasis is on application to the 4- and 6-GHz bands on links with negligible ground reflections. Necessary signal processing, links utilizing passive repeaters (reflectors), and overwater links are also treated. Some new experimental data are presented.