Multibeam antenna array with Butler Matrix for Wlan applications

Abstract

In this paper, four beam patterns generated by four identical planar antennas connected to a 4×4 Butler Matrix are presented. Each of the planar antennas consists of a 4×2 radiating array patch antenna which has the capability to produce a directional beam pattern. Butler Matrix 4 × 4 is chosen as a beamforming network and was designed to produce four independent beams in four different directions. The measurement patterns result achieved by this project is then compared with the theoretical calculation. (5 pages)