Rennings, Andreas; Liebig, Thorsten; Caloz, Christophe; Wolff, I.:

Double Lorentz transmission line metamaterial and its application to tri-band devices

In: 2007 IEEE MTT-S International Microwave Symposium digest, Honolulu, Hawaii, June 3 - 8, 2007
Session TH1G-04, Piscataway, NJ: IEEE Operations Center (2007), S. 1427-1430
ISBN: 1-4244-0688-9, 1-4244-0688-9
Buchaufsatz / Kapitel / Fach: Elektrotechnik
Fakultät für Ingenieurwissenschaften
Abstract:
A double-Lorentz (DL) transmission line (TL) metamaterial is proposed for the first time. Both effective material parameters µeff and "eff of the corresponding line exhibit a Lorentz-type dispersion, hence the proposed terminology double-Lorentz. This type of TL presents the interest of being intrinsically tri-band, while the previously reported composite right/left-handed TL metamaterial is only dualband. The DL TL theory is fully derived and demonstrated experimentally by a microstrip implementation. The tri-band property of the DL TL is illustrated by the design of a triband lamda/4 impedance transformer and a systematic design procedure is described.

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