Design of Frequency Reconfigurable Antenna on Dielectric and Magnetic
Metamaterial Composite Substrate
Abstract
Reconfigurable planar antennas are essential in multifunctional wireless
communication devices. This paper presents the design of a frequency
reconfigurable patch antenna printed on a composite substrate made of a
dielectric and a magnetic metamaterial (MMM). The MMM comprises
magnetized ferrite slabs with embedded split-ring resonators (SRR). The
constructive coupling between the resonances of the magnetized ferrites
and SRR is optimized to achieve promising reconfigurable properties. The
proposed frequency reconfigurable antenna demonstrates a 158% increase
in the frequency tuning range. Furthermore, the simulated results are
experimentally verified, and the composite substrate shows slight
effects on the antenna radiation characteristics.