Spatial-Filtering Microwave Devices Using Metallic Anisotropic Grids Over Ground

Author

Siddiqui, Omar F. ; Eleftheriades, George V.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

933

Lastpage

936

Abstract

In this review article the authors examine interesting resonance phenomena that result due to peculiar dispersion characteristics of continuous (unloaded) anisotropic grids along with corresponding applications. The phase space (k-space) of these metallic grids at resonant frequencies is characterized by isofrequency dispersion contours that have rectangular and hyperbolic shapes. As a result, energy propagation takes place in specified directions within the periodic structures, an effect called ´self-collimation´. Novel spatial-filtering and wave-guiding devices could be implemented using these properties. Two such spatial-filtering devices using different configurations of anisotropic metallic grids will be reviewed: a microstrip harmonic splitter that separates 3 GHz from its 6 GHz harmonic and a highly selective 5.8/6.2 GHz microstrip diplexer

Keywords

microstrip components; microwave circuits; multiplexing equipment; power dividers; spatial filters; 3 GHz; 5.8 GHz; 6 GHz; 6.2 GHz; isofrequency dispersion contours; metallic anisotropic grids; microstrip diplexer; microstrip harmonic splitter; spatial filtering devices; Anisotropic magnetoresistance; Filter bank; Filtering; Frequency; Metamaterials; Microwave devices; Periodic structures; Personal communication networks; Resonance; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281074

Filename

4057973