Some studies of quasi-planar antennas

Abstract

Recent decades have witnessed the rapid evolution of wireless sensing and communication systems aimed at the consumer market. The antenna is a key component in any of these systems, and the selection criteria for a commercial success include the antenna performance, size, weight, and cost.The printed reflectarray surfaces can be manufactured using simple and low-cost etching processes, especially when produced in large quantities. Several folded reflectarray are presented and compared. In addition, a novel dual-frequency folded reflectarray is designed and measured. At last, one planar lens antenna is introduce.