Shaped Beam and Highly Directive Microstrip Antenna Arrays for Broadband 3.5 GHz Point-To-Multipointaccess Systems

In modern point-to-multipoint radio relay links, microstrip antenna arrays are an attractive alternative to well-known reflector antennas, especially if there is the need of low profile and low manufacturing cost in conjunction with good electrical performance. The paper presents new results of directive customer unit antennas as well as sectored shaped beam antennas for use within a 3.5 GHz broadband radio access system.