A simple design of broadband tapered leaky-wave antenna

被引：1
|
作者：
Losito, Onofrio [1 ]
机构：
[1] Univ Salento, Dept Innovat Engn, I-73100 Lecce, Italy
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2007年 / 49卷 / 11期
关键词：
leaky wave antenna; broadband antenna; FDTD; tapered antenna;
D O I：
10.1002/mop.22860
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new layout of leaky-wave antennas based on tapered design has been proposed and investigated. The new curve tapered leaky-wave antenna (LWA) was designed running a simple procedure which use an FDTD code, and using a physical grounding structure along the length of the antenna, which allows to use only half of the structure, the adoption of a simple feeding, and the reduction of side-lobes. The good performance of this new tapered microstrip LWA are mainly wider band of 33% for VSWR <2, higher gain (12 dBi) and higher efficiency, (up to 85%). Moreover if the relative dielectric constant of the substrate approaches 1 (epsilon(r) = epsilon(0)), the leaky wave antenna bandwidth becomes much wider improving its performance. (C) 2007 Wiley Periodicals, Inc.
引用
收藏
页码：2833 / 2838
页数：6
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