一种双陷波超宽带单极子天线的设计  

Design of a Monopole Antenna with Dual Band-notched Performance for UWB Applications

作　　者：李晓东 

机构地区：[1]海军南海舰队信息化处,广东湛江524001

出　　处：《电子科技》2014年第3期77-79,共3页Electronic Science and Technology

摘　　要：提出了一种新型双陷波特性的超宽带单极子天线.通过在介质基板上添加锥形辐射贴片,天线可以覆盖超宽带通信频段.在辐射贴片上引入上、下两个锥形缝隙结构,可以实现3.5 GHz、5.5 GHz的双陷波特性.天线实测模型电压驻波比＜2的阻抗带宽是2.56 ～10.61GHz,其中3.18 ～3.76 GHz和4.4～5.75 GHz具有陷波特性.测试表明,天线在工作频带内具有全向辐射特性.A novel printed monopole antenna with band-notched performance is proposed for UWB applioations., Impedance bandwidth covering UWB band is obtained by using a modified trapezoid strip. In addition, two trapezoid slots are inserted on the FR4 substrate to produce two notched bands at 3. 5 GHz and 5.5 GHz. The measurement results show that the proposed antenna can guarantee a wide bandwidth from 2. 56 to to. 61 GHz （VSWR 〈 2） with dual notched band at 3. 18 - 3. 76 GHz and 4. 4 - 5. 75 GHz. Omnidirectional radiation patterns over the operating bands are obtained by the fabricated antenna.

关 键 词：超宽带天线 单极子天线 无线通信 陷波特性 

分 类 号：TN822.8[电子电信—信息与通信工程]