Broadside Radiation by Excitation of EBG Leaky Mode

Author

Abdo, Yaser S E ; Chaharmir, M.R. ; Shaker, J. ; Antar, Y.M.M.

Author_Institution

Electr. & Comput. Eng. Dept., R. Mil. Coll. of Canada, Kingston, ON, Canada

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

861

Lastpage

864

Abstract

A broadside radiation from an electromagnetic band-gap (EBG) waveguide is achieved. The EBG waveguide, which operates around 30 GHz, is designed using a square lattice of metal vias to build a spatial power combiner. A surface mode was excited by adding a row of holes to the square lattice of metal vias. The row of holes was modulated to couple the surface mode to a leaky mode that radiates in free space. The return loss of the optimized structure is less than -10 dB around a frequency of 30 GHz, and the radiation pattern has the main beam along the broadside. The measured data of the fabricated structure confirm the directional radiation pattern.

Keywords

antenna radiation patterns; directive antennas; photonic band gap; power combiners; EBG leaky mode excitation; EBG waveguide; broadside radiation; directional radiation pattern; electromagnetic band-gap waveguide; leaky mode; metal via square lattice; spatial power combiner; surface mode; Antenna radiation patterns; Lattices; Metals; Metamaterials; Optical waveguides; Periodic structures; Surface waves; Electromagnetic band-gap (EBG); leaky-wave antenna; periodic structures; waveguides;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2207942

Filename

6237480