Large experimental bandpass waveguide in 3D EBG woodpile manufactured by layer-by-layer ceramic stereolithography

Author

Delhote, Nocolas ; Baillargeat, Dominique ; Verdeyme, Serge ; Thévenot, Marc ; Delage, Cyrille ; Chaput, Christophe

Author_Institution

Univ. of Limoges, Limoges

fYear

2007

fDate

3-8 June 2007

Firstpage

1431

Lastpage

1434

Abstract

An original waveguide located in a woodpile (layer-by-layer) crystal is presented in this paper. Its geometrical sizes, shape and location have been optimized in order to maximize its bandwidth and the matching between this guide and the input/ouput feeding WR waveguides. The 3D electromagnetic band gap (EBG) crystal has been designed, optimized and manufactured in one monolithic piece with zirconia (epsiv_r=31.2 at 30 GHz) by the 3D ceramic stereolithography process. It experimentally exhibits a large complete bandgap superior to 20% and the waveguide located in such woodpile provides a measured 20% bandwidth around 26 GHz while keeping a return loss inferior to -10dB.

Keywords

ceramics; dielectric waveguides; layered manufacturing; photonic band gap; photonic crystals; rectangular waveguides; stereolithography; zirconium alloys; 3D EBG woodpile crystal; 3D electromagnetic band gap crystal; WR waveguides; ZrO₂; bandpass waveguide; frequency 30 GHz; layer-by-layer ceramic stereolithography; monolithic crystal; return loss; zirconia; Bandwidth; Ceramics; Design optimization; Electromagnetic waveguides; Loss measurement; Manufacturing processes; Photonic band gap; Pulp manufacturing; Shape; Stereolithography; 3D EBG material; 3D ceramic stereolithography; array of antennas; large complete bandgap; monolithic; photonic; waveguide; woodpile;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380501

Filename

4264106