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In this letter,we introduce a novel passive transmission line of negative refractive index(i.e.,left-handedness)based on identical symmetrical lattice type structures thus called “lattice type transmission line”(LT-TL).The dispersion characteristic and the transmission response of the proposed LT-TL are analyzed.While all the other left-handed passive transmission lines are of high pass,the present passive left-handed transmission line is of low pass.Compared with a conventional transmission line,the LT-TL has a phase shift of 180° in the entire wide pass-band.
In this letter, we introduce a novel passive transmission line of negative refractive index (ie, left-handedness) based on identical symmetrical lattice type structures thus called “lattice type transmission line” (LT-TL). The dispersion characteristic and the Transmission response of the proposed LT-TL is analyzed. Whilst all the other left-handed passive transmission lines are of high pass, the present passive left-handed transmission line is of low pass. Compared with a conventional transmission line, the LT-TL has a phase shift of 180 ° in the entire wide pass-band.