  The macro composite right/left handedness (CRLH) accompanies the
positive/negative refraction index in the higher, microwave frequency bands in
the composite right/left handed transmission line (CRLH-TL), respectively. In
this paper, we adjust the refraction index of a quantized CRLH-TL via the
squeezed parameters and the electronic components' parameters in the thermal
squeezed state, and the refraction index shows the positive/negative jumping
around the squeezed angle \(\varphi\)=\(\pi\) when it operates at a single
frequency, and the similar result also arises while the refraction index is
manipulated by the electronic components' parameters. The monochromatic CRLH
achieved here breaks through the original definition in the macro CRLH-TL and
provide a new implementation for the CRLH-TL.
