研究目的

Investigating the design and performance of a compact highly efficient broadband microwave polarizing reflector employing a quasi-2-D metamaterial composed of a single layer of square split-ring resonators.

研究成果

We have demonstrated a broadband and high-efficiency reflective polarization converter. The MM construct, composed of a single layer of square SRRs, converts a linearly polarized wave into its orthogonal polarized ones over 8.2 to 23 GHz for normal incidence waves. The cross-polarization conversion is greater than 90% and nearly reaches 100% at the three resonant frequencies of 9.3, 13.8, and 22.8 GHz. The simulated and measured results are consistent over the entire frequency region. Both theoretical analysis and simulated results exhibit that a near perfect polarization conversion can be obtained owing to multiple resonances.

研究不足

The performance of the designed structure will be deteriorated for oblique incident angles increasing, and more study on how to design structures with good performance for oblique incident angles may be carried out as our future research topic.