Advancements in Ku Band Resonator Composite Right/Left-Handed (CRLH) Metamaterials: Design, Analysis, and Applications

This paper comprehensively summarizes the Ku-band composite left-handed/right-handed (CRLH) resonator based on a 50 Ω two-ports network. A parametric simulation was provided based on CST MWS to reach the optimal design within the Ku-band. This design invokes two fractals based on Minkowski and Hilbert curves to realize the desired specifications. The proposed resonator performance was optimized according to the invoked fractal curves. After reaching the desired performance, the achieved results are validated. It is found that the resonator occupies an area of 35 × 30 mm2 when printed on Roger RT5880 of 0.8 mm thickness with a complete ground plane. The resonator shows an excellent resonance near 15.45 GHz with an excellent quality factor. The evaluated S-parameters of the proposed resonator show minimum losses of about zero with a 30% reflection coefficient and 70% transmission coefficient. The numerical demonstration based on different numerical approaches, including HFSS, is mainly highlighted to quantify the efficiency of CRLH structures. In the end, it stated the present difficulties and the future work perspectives of the field, which explains the necessity of using complex applications and innovative design techniques to take advantage of all opportunists presented by CRLH in the Ku-band applications.