Wider frequency domain for negative refraction index in a quantized composite right–left handed transmission line<xref rid="cpb_27_6_068102fn1" ref-type="fn">*</xref> <fn id="cpb_27_6_068102fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 61205205 and 6156508508), the General Program of Yunnan Provincial Applied Basic Research Project, China (Grant No. 2016FB009), and the Foundation for Personnel Training Projects of Yunnan Province, China (Grant No. KKSY201207068).</p> </fn>

Wider frequency domain for negative refraction index in a quantized composite right–left handed transmission line* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 61205205 and 6156508508), the General Program of Yunnan Provincial Applied Basic Research Project, China (Grant No. 2016FB009), and the Foundation for Personnel Training Projects of Yunnan Province, China (Grant No. KKSY201207068).

Wu Qi-Xuan¹, Zhao Shun-Cai^{2, †}

Curves of refraction index n versus the shunt capacitor C_r tuned by different values of (a) series capacitor C_l and (b) inductance L_r, respectively.