Ultra-thin and light-weight spoof surface plasmon polariton coupler achieved by broadside coupled split ring resonators<xref rid="cpb_27_10_100304fn1" ref-type="fn">*</xref><fn id="cpb_27_10_100304fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 61331005, 61471388, and 61501503).</p></fn>

Ultra-thin and light-weight spoof surface plasmon polariton coupler achieved by broadside coupled split ring resonators**

Project supported by the National Natural Science Foundation of China (Grant Nos. 61331005, 61471388, and 61501503).

Fan Ya, Wang Jia-Fu^†, Ma Hua, Li Yong-Feng, Feng Ming-De, Qu Shao-Bo^‡

(color online) (a) Photograph of SSPP coupler prototype; (b) measured specular reflection S₁₁; E_z-field distribution on the x–o–y plane of the coupler under normal x-polarized incident at (c) 5.07 GHz and (d) 5.27 GHz.