A NOVEL APPROACH USING AN INDUCTIVE LOADING TO LOWER THE RESONANT FREQUENCY OF A MUSHROOM-SHAPED HIGH IMPEDANCE SURFACE
PROGRESS IN ELECTROMAGNETICS RESEARCH M(2020)
摘要
This paper reports a novel approach using an inductive loading to reduce the resonant frequency of a mushroom-shaped high impedance surface. The current path is extended on the mushroom-shaped structure's vias and additional traces, which introduces a three-dimensional inductor to the unit cell and leads to an increase in total inductance. As a result, the resonant frequency of the high impedance structure decreases, and a smaller unit cell size can be achieved at the low gigahertz frequency range. Finite element electromagnetic simulation, equivalent circuits modeling, and experimental measurements suggest the feasibility of the proposed approach.
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关键词
resonant frequency,inductive loading,mushroom-shaped
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