Embedded-circuit magnetic metamaterial substrate performance for patch antennas

Author

Buell, Kevin ; Mosallaei, Hossein ; Sarabandi, Kamal

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1415

Abstract

Magnetic permeability was imparted to a naturally non-magnetic material by metallic inclusions. A patch antenna tested the performance of the magnetic metamaterial as a substrate. The magnetic metamaterial exhibited enhanced μ and ε as predicted with acceptable loss-factor levels. Models for predicting μ and ε are presented and simulations indicate that permeability can be extended well beyond several GHz with current technology. Permeability in the μ_r=1-4 range is achievable for moderately low-loss applications. The representative antenna miniaturization factor=4-6.4 with efficiency=21-35%.

Keywords

circuit resonance; inclusions; magnetic permeability; microstrip antennas; microwave materials; 21 to 35 percent; embedded resonant circuits; low-loss applications; magnetic loss-factor; magnetic metamaterial substrate; magnetic permeability; metallic inclusions; microwave materials; patch antennas; Dielectric losses; Dielectric materials; Magnetic confinement; Magnetic materials; Magnetic resonance; Metamaterials; Patch antennas; Permeability; Permittivity; Spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330452

Filename

1330452