A Multiple Switched Beam Smart Antenna with Beam Shaping for Dynamic Optimisation of Capacity & Coverage in Mobile Telecommunication Networks

摘要：

A four column Smart antenna array fed by a 4x4 Butler matrix augmented by a variable beam shaping network has been designed and simulated.It is demonstrated that using only three phase shifters within the beam shaping network provides dynamic beam flexibility including: four narrow switched beams,a right shaped beam,a left shaped beam and a broad broadcast channel beam.The shaped beams concentrate coverage at high capacity in either the right or left half of a sector while maintaining coverage at lower capacity over the reminder of the sector.The resultant antenna system represents an improvement in performance over a single multiple switched beam smart antenna without the cost and complexity of a fully adaptive smart antenna.Simulated radiation patterns over the full 3G frequency band show that useful dynamic coverage & capacity enhancement can be implemented with the proposed antenna system.

关键词： Antenna arrays antenna radiation patterns array signal processing microwave antennas mobile communications shaped beam antennas

作者: Freeborn Bobor-Oyibo S.J.Foti David Smith

作者单位: School of CEIS,Northumbria University Newcastle upon Tyne,NE1 8ST,United Kingdom Lonning House,Elsdon,Northumberland,NE191BS,United Kingdom

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）