一种具有U形寄生单元的三陷波带陷超宽带天线设计  

Design of three-band-notched ultra-wideband antenna with U-shaped parasitic element

作　　者：李睿[1] 唐晋生[1] 韩曹政 

机构地区：[1]西南交通大学电磁场与微波技术研究所,四川成都610031

出　　处：《现代电子技术》2013年第15期50-52,55,共4页Modern Electronics Technique

摘　　要：设计了一种采用微带馈电的平面超宽带天线，并在该超宽带天线的基础上，通过在微带馈线的旁边加栽u形寄生单元的方式，在3．1-10．6GHz的通带内实现了3个频段的带陷特性。该天线采用RogersRT／duroid5880为基板，整体尺寸仅为23mm×13mm×0．508mm，具有易加工、便于集成的特点。仿真和测试结果表明该天线在3．25～3．6GHz，5．1～5．9GHz和9．5-9．9GHz处形成3个陷波频段，适合于超宽带系统的使用。A planar ultra-wideband （UWB） antenna with microstrip feed was designed. And on the basis of the UWB antenna, the U-shaped parasitic element is added on the side of the microtrip feeder to obtain the band-notched function for the 3 notched bands. The overall dimension for the proposed antenna is 23 mm× 13 mm × 0.508 ram. Rogers RT/duroid 5880 is taken as a substrate in the system. The antenna is easy to build and integrate. Simulated and Measured results confirm that the proposed antenna forms three trapped wave bands at 3.25-3.6 GHz, 5.1-5.9 GHz and 9.5-9.9 GHz, and is suitable for UWB applications.

关 键 词：超宽带天线 带阻功能 寄生单元 平面天线 

分 类 号：TN823.34[电子电信—信息与通信工程]