A novel reconfigurable metamaterial unit cell based Composite Right/Left Handed microstrip design

Author

Wiwatcharagoses, Nophadon ; Chahal, Prem

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

fYear

2011

fDate

3-8 July 2011

Firstpage

2954

Lastpage

2957

Abstract

In this paper, a new metamaterial (MTM) unit cell implemented in a microstrip transmission line configuration is proposed. Reconfigurable metamaterial-based Composite Right/Left Handed (CRLH) microstrip transmission line, with one-side etching and no via, is presented here for the first time. As a result, it is easier to fabricate and more convenient for integration. By incorporating varactor diodes, the electrical characteristics of the unit cell can be electronically reconfigured through DC voltage tuning. A microstrip line loaded with this new unit cell exhibits a tunable band pass characteristics with right- and left-handed phenomena. This was confirmed using a dispersion diagram. A simple tunable band-pass (7 - 8.25 GHz) filter using the new unit cell is demonstrated. A single unit cell circuit has been fabricated and preliminary measured results correlate closely with simulation results.

Keywords

band-pass filters; circuit tuning; etching; metamaterials; microstrip lines; transmission lines; varactors; CRLH microstrip transmission line; DC voltage tuning; composite right/left handed microstrip design; dispersion diagram; electrical characteristics; microstrip transmission line configuration; one-side etching; reconfigurable metamaterial unit cell; tunable band-pass filter; varactor diode; Band pass filters; Microstrip; Microwave circuits; Microwave filters; Optical ring resonators; Power transmission lines; Varactors; band pass filters; metamaterials; microstrip technology; reconfigurable; ring resonator; tunablilty; varactor diode;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5997148

Filename

5997148