【作者】 吕源； 沈学民； 龚文斌；

【Author】 Yuan Lv~1,Xue-Min Shen~2 (1 Shanghai Institute Of Technical Physics,Chinese Academy Of Sciences,Shanghai 200083; 2 Shanghai Engineering Center For Microsatellites,Shanghai 200050)

【机构】 中科院上海技术物理研究所； 上海微小卫星工程中心；

【摘要】 本文提出了一种性能良好的s波段新型全向印刷天线。该天线由2副半波振子背靠背印刷在介质板上构成,结构简单紧凑。相对带宽达24.2%(VSWR<2),在工作频带内,增益4.0dBi,不圆度小于1.0dBi。文中给出了详细的仿真设计结果,并分析了天线罩对整个天线性能的影响。本天线适用于WiMax(802.16)终端及WLAN基站或中继站天线。更多还原

【Abstract】 A novel s-band omnidirectioanl planar antenna comprising two back-to-back dipoles printed on a dielectric substrate is presented.The presented antenna shows a wide impedance bandwidth about 24.2%(VSWR<2),and a stable antenna gain level of about 4.0dBi,with small variations(<1.0dBi) for omnidirectional radiation,is obtained across the used bandwidth.Details of antenna design and simulated results are proposed.The radome which affects the whole function of antenna is also simulated.A constructed prototype is suitable for WiMax(802.16) application both fixed and mobile solutions,as well as base or relay stations for WLAN operation or mobile communications.更多还原