A Periodic Metallic Antenna for High Wireless Communication Performances

This paper presents a multi-directive antenna for point-to-multipoint line-of-sight (LOS) communications. Based on an Electromagnetic Crystal (EC) structure, the proposed antenna is able to provide several simultaneous directive beams in different directions at different frequencies. Thus by conveniently disposing the different communication points in the space and allowing them to communicate at different frequencies, a high performance network can be obtained by using a single antenna. To study the antenna performance, both theoretical analysis and numerical simulations are presented and validated by experimental results.