Surface and Leaky Waves of a Metal Strip Grating on a Grounded Slab

Author

Baccarelli, P. ; Burghignoli, P. ; Frezza, F. ; Galli, A. ; Lampariello, P. ; Lovat, G. ; Paulotto, S.

Author_Institution

Dept. of Electron. Eng., La Sapienza Univ. of Rome

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

1

Lastpage

4

Abstract

A grounded dielectric slab covered with a metal strip grating in the form of an infinite linear array of microstrip lines constitutes a canonical structure for the realization of a variety of microwave components and antennas, including artificially hard and soft surfaces. In this contribution we review some recent theoretical and numerical results concerning surface and leaky waves supported by this structure. Spectral properties of modes propagating at arbitrary angles in the plane of the strip grating are examined, in order to provide criteria for the correct study of modal evolution as a function of frequency or propagation angle. Numerical full-wave results are provided that illustrate some interesting and novel properties related to such modal evolutions

Keywords

dielectric bodies; leaky wave antennas; linear antenna arrays; microstrip lines; microwave propagation; surface electromagnetic waves; antennas; canonical structure; grounded dielectric slab; infinite linear array; leaky waves; metal strip grating; microstrip lines; microwave components; propagation angle; Dielectrics; Gratings; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Microstrip components; Microwave antenna arrays; Slabs; Strips; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics and Communications, 2005. ICECom 2005. 18th International Conference on

Conference_Location

Dubrovnik

Print_ISBN

953-6037-44-0

Type

conf

DOI

10.1109/ICECOM.2005.205023

Filename

1613530