Summary
International Symposium on Antennas and Propagation
2014
Session Number:FR3B
Session:
Number:FR3B_01
Layered Butler Matrix Circuit for Vertical Multi Beam of Cellular Base Station Antenna
Yoshihiro Kozuki, Hiroyuki Arai,
pp.-
Publication Date:2014/12/2
Online ISSN:2188-5079
Summary:
To enhance the channel capacity of cellular systems, we need to reduce the size of coverage area for small cell, provided by sectorization in vertical plane. The multi-sector in vertical plane is given by multi-beam antenna fed by Butler matrix. This paper proposes a layered butler matrix circuit for multi beam antenna feeding system and demonstrates how to use in cellular base station antennas.