Magneto-Dielectric Substrates in Antenna Miniaturization: Potential and Limitations
作者： Konstantin Rozanov , Pekka Ikonen , Alexey Osipov , Sergei Tretyakov
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摘要: In the present paper we discuss antenna miniaturization using magneto-dielectric substrates. Recent results found in literature reveal that advantages over conventional dielectric substrates can only be achieved if natural magnetic inclusions are embedded into substrate. This observation is revised and physical background clarified. We a detailed discussion concerning materials available microwave regime containing constituents. The effects of dispersion loss studied: constraints on permeability used to estimate effect achievable impedance bandwidth. Microwave composites filled with thin ferromagnetic films considered as prospective calculate bandwidth for $\lambda/2$-patch loaded proposed substrate, challenge against those obtained It shown radiation quality factor strongly minimized substrate even presence realistic losses. Estimates efficiency given function factor.
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