A simple design of broadband tapered leaky-wave antenna

✍ Scribed by Onofrio Losito

• Book ID: 102519802
• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 467 KB
• Volume: 49
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.22860

✦ Synopsis

Abstract

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 sidelobes. 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 (ϵ~r~=ϵ~0~), the leaky wave antenna bandwidth becomes much wider improving its performance. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2833–2838, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22860