Leaky-wave antenna

US8570238B2 · kind B2 · utility

Assignees

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• Technische Universität Ilmenau · DE

Inventors

• Rainer Wansch · Geiselhöring, DE
• Mario Schuehler · Effeltrich, DE
• Matthias Hein · Ilmenau, DE

Key dates

• Filing date: Mar 29, 2011
• Grant date: Oct 29, 2013
• Expiry date: May 15, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q13/28
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A leaky-wave antenna includes a sheet arrangement having first, second and third metalized sheets that are arranged on top of and in parallel with one another and are separated by two di-electric layers, the first metalized sheet having a first two-dimensionally periodic metalization structure, the second metalized sheet having a second two-dimensionally periodic metalization structure, and the third metalized sheet having a continuous metalization area, and an excitation structure above the first metalized sheet for exciting a leaky-wave mode in the sheet arrangement at a working frequency f0 of the leaky-wave antenna, wherein the sheet arrangement exhibits a shape of a regular n-gon with N≧8 (N ∈ Z) or a circular shape as the edge boundary.