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Dielectric resonator antennas (DRAs) can be miniaturized by using high-permittivity (high-ε) and/or high-permeability (high-μ) materials. Given the same miniaturization ratio, the one with high-μ allows for a wider bandwidth. However, the loss of a natural high-μ material is unacceptably high at microwave frequencies. Alternatively, low-loss permeability can be artificially engineered for microwave...
Naturally occurring high permeability materials are widely used in antenna miniaturization at VHF-UHF frequency range. However, they are unable to be used at frequencies beyond 500 MHz due to their high loss. The main idea of this paper is to reproduce the magnetic behavior using metallic inclusions for low-loss microwave applications. In this paper, an artificial magneto-dielectric resonator antenna...
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