Multi-frequency narrow-band near-perfect transmission of frequency selective surfaces through artificial magnetic conductor metamaterials

Abstract

This study designed and implemented a method for multi-frequency narrow-band frequency selective surface (FSS) by using artificial magnetic conductor (AMC) metamaterials. By analyzing AMC unit cells’ reflection characteristics, this study developed and fabricated single-frequency, dual-frequency, and tri-frequency AMC units, which were then combined to form certain FSS structures. Theoretical and experimental results show that these FSS structures can enhance transmissions at specific resonance frequencies, thus enabling multi-frequency narrow-band filtering. This study expands FSS multi-frequency selection features, while providing a solution for boosting spectrum utilization of wireless communication systems.