Split square resonators using high dielectric constant resonator

What is it about?

The design of a split ring resonator bandpass filter is reported. The design is based on coupling coefficient filter and the novelty of the proposed design is possibility to miniaturise the structure by including a new kind of dielectric resonator fabricated with a commercial high dielectric constant epoxy paste. Equivalent circuit model is discussed, establishing a clear relation between each component and physical parameter of the proposed design. Excellent agreement between electromagnetic simu- lation and measured of band pass filter at 1.65 GHz is found.

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Why is it important?

The proposed equivalent circuit model based on the capacitance coupling transmission line lets to establish a clear relation between the equivalent circuit model and the layout physical dimensions and, therefore establishing a link between the filter specifications and the layout physical dimensions.