5
Pattern Diversity Antennas for Base Stations
5.1Introduction
The concept of path loss compensation is introduced in this chapter, and two distinct pattern diversity architectures are presented in detail. First, a mmWave tapered slot antenna is introduced, which is integrated with metamaterial unit cells along with dielectric loading. In order to increase gain and its corresponding aperture efficiency, a stacked pattern diversity module is presented to achieve uniform illumination on the ground. Second, spatially modulated sub-wavelength metamaterial unit cells are investigated, which act as phase correcting elements that increase the gain yield for a minimal occupied volume, and the antenna element is used in a co-polarized stacked ...
