Multiple beam antenna arrays for indoor communications

摘要

A practical design of a multiple beam antenna array for indoor wireless communications is presented. This antenna is formed using a linear array of equally spaced elements, fed with an improved printed circuit Rotman lens. Both the lens and the array are designed and built on the same dielectric substrate. The antenna operates in frequency range of 27–30 GHz and covers an angular sector near 120 degrees with more than 10 beams. A full azimuth coverage can be obtained through a set of three antenna arrays.