| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for optimizing a dielectric circuit substrate material in order to increase the degree of freedom in design of an RF (radio frequency) circuit, and more specifically, to improve the performance in a resonant line. SOLUTION: This relates to a circuit for processing radio frequency signals. The resonant circuit includes a substrate. The substrate can be a meta-material and can incorporate at least one substrate layer. A resonant line and at least one ground can be connected to the substrate. One end of the resonant line can be electrically short circuited to the ground or electrically open circuited to the ground. The substrate layer can include a first region having first substrate properties and at least one second region having second substrate properties. At least a portion of the resonant line can be connected to the second region. The first and/or the second set of substrate properties can be differently changed to vary a permittivity and/or a permeability in a selected region. A third region can be also provided with a third set of substrate properties. COPYRIGHT: (C)2004,JPO
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