"Extended composite right/left-handed (E-CRLH) metamaterials and its application as quadband quarter-wavelength transmission line,"
In: Sail for the microwave ocean : 2006 Asia-Pacific Microwave Conference, December 12 -15, 2006, Pacifico Yokohama, Yokohama, Japan ; proceedings
Session FR1A-1, Yokohama, Japan: Asia-Pacific Microwave Conf. (APMC 2006) (2006), S. 1405-1408
ISBN: 978-4-902339-08-6, 978-4-902339-11-6
Buchaufsatz / Kapitel / Fach: Elektrotechnik
A novel extended composite right/left-handed (E-CRLH) transmission line (TL) metamaterial structure, constituted by the combination of the conventional CRLH (CCRLH) and the recently introduced dual CRLH (D-CRLH)  prototypes, is proposed. This E-CRLH metamaterial is characterized by eight LC parameters (four C-CRLH and four D-CRLH parameters), which allow unprecedented diversity in the manipulation of the dispersion relation of the resulting TL structure. In particular, an E-CRLH TL metamaterial, under an extended balance condition, exhibits two frequencies of infinite wavelength propagation. In addition, the E-CRLH is intrinsically a quadband (arbitrary quadruplet of frequencies) structure. The latter property is exploited here into the design of a quadband quarterwavelength transformer, and may be applied in principle to any TL-based microwave component.