Title :
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
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;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5997148
