Analysis and Design of Tapered Slot Antenna for Ultra-Wideband Applications  

作　　者：姚远 陈文华 黄斌 冯正和 张志军 

机构地区：[1]Department of Electronic Engineering, Tsinghua University

出　　处：《Tsinghua Science and Technology》2009年第1期1-6,共6页清华大学学报（自然科学版（英文版）

基　　金：Supported by the Basic Research Foundation of Tsinghua National Laboratory for Information Science and Technology (TNList)

摘　　要：The tapered slot antenna, such as Vivaldi, has been widely used due to its ultra-wideband, high gain, simple feed structure, and easy fabrication. However, there is no rigorous analytical theory for this type of antenna. This paper analyzed the metal parts of a tapered slot antenna in a conical coordinate system with the medium analyzed in rectangular coordinates. This mixed mode gave an approximate analytical form for the tapered slot antenna with the field distribution and radiation characteristics. A planar tapered slot antenna was proposed according to the results of the analysis methods. Measured and simulated results demonstrate the antenna performance. The antenna shows good impedance matching over a wide bandwidth of 9 GHz, from 2 GHz to 11 GHz, and good radiation patterns. It is suitable for ultra-wideband applications.The tapered slot antenna, such as Vivaldi, has been widely used due to its ultra-wideband, high gain, simple feed structure, and easy fabrication. However, there is no rigorous analytical theory for this type of antenna. This paper analyzed the metal parts of a tapered slot antenna in a conical coordinate system with the medium analyzed in rectangular coordinates. This mixed mode gave an approximate analytical form for the tapered slot antenna with the field distribution and radiation characteristics. A planar tapered slot antenna was proposed according to the results of the analysis methods. Measured and simulated results demonstrate the antenna performance. The antenna shows good impedance matching over a wide bandwidth of 9 GHz, from 2 GHz to 11 GHz, and good radiation patterns. It is suitable for ultra-wideband applications.

关 键 词：planar antenna tapered slot antenna ultra-wideband （UWB） VIVALDI 

分 类 号：TN821[电子电信—信息与通信工程]