Dual-band, low-frequency artificial magnetic conductor using lumped components

In this contribution we discuss the design of a Frequency Selective Surface (FSS) serving as planar, dual-band, low-frequency Artificial Magnetic Conductor (AMC). The unit cell geometry of the AMC is based on meander structures to reduce its size and allow for the design of two separately tuneable resonances. The FSS is constructed from two single-sided Printed Circuit Boards (PCBs) manufactured from cost-effective FR-4 separated by nylon spacers. The unit cells contain lumped elements for tuning of the individual resonances and immunity to permittivity variations of the substrate. The numerical simulation results are discussed and compared to measurements obtained from manufactured specimens.