Planar circularly symmetric EBG structures for reducing surface waves in printed antennas

Author

Llombart, Nuria ; Neto, Andrea ; Gerini, Giampiero ; De Maagt, Peter

Author_Institution

TNO Defence, Security & Safety, Den Haag, Netherlands

Volume

53

Issue

10

fYear

2005

Firstpage

3210

Lastpage

3218

Abstract

This paper discusses the design and analysis of planar circularly symmetric (PCS) electromagnetic band gap (EBG) structures for reducing the surface waves excited by printed antennas on dense dielectric substrates. The key advantage of the circularly symmetric geometries is that a surface wave generated by a source located at its center experiences the same band gap effect in all radial directions. To obtain simple design rules of the PCS-EBGs for the optimization of the bandwidth, an equivalence is established between 2-D-EBGs and PCS-EBGs. Integrated planar printed antennas with bandwidths up to 20% are designed, manufactured and tested.

Keywords

circular waveguides; dispersion (wave); microstrip antennas; optimisation; photonic band gap; planar waveguides; surface electromagnetic waves; EBG; PCS; dense dielectric substrates; dispersion diagrams; electromagnetic band gap structure; integrated planar printed antenna; optimization; planar circularly symmetric structure; radial direction; surface wave; Bandwidth; Design optimization; Dielectric substrates; Electromagnetic analysis; Geometry; Metamaterials; Periodic structures; Personal communication networks; Photonic band gap; Surface waves; Circular structures; dispersion diagrams; electromagnetic band gap (EBG); printed antennas; surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.856365

Filename

1514574