SYMMETRIC COUPLED COMPOSITE RIGHT-/LEFT-HANDED TRANSMISSION LINE IN COMMON-/DIFFERENTIAL-MODE OPERATION
Author(s) -
Young Kim,
SeokHyun Sim
Publication year - 2013
Publication title -
progress in electromagnetics research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.245
H-Index - 33
ISSN - 1937-6480
DOI - 10.2528/pierl13040305
Subject(s) - left handed , composite number , transmission line , differential (mechanical device) , mode (computer interface) , transmission (telecommunications) , line (geometry) , common mode signal , physics , optics , materials science , mathematics , computer science , geometry , telecommunications , composite material , analog signal , operating system , thermodynamics
In this paper, a novel four-port symmetric coupled composite right-/left-handed (CRLH) transmission line in common- /difierential-mode operation is introduced. The symmetric metamate- rial structure is based on a unit-cell which under a difierential-mode excitation behaves like a CRLH metamaterial with bandpass fllter char- acteristics. In contrast, the CRLH metamaterial is below the cut-ofi frequency under a common-mode excitation. To validate these fea- tures, a flve-cell four-port symmetric CRLH-TL is simulated, fabri- cated, and measured, and the obtained results verify the bandpass fllter features of the structure under difierential-mode excitation.
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