RF Filter and Communication Device having the Same
US-2024413514-A1 · Dec 12, 2024 · US
US10305159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10305159-B2 |
| Application number | US-201715682648-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2017 |
| Priority date | Aug 22, 2017 |
| Publication date | May 28, 2019 |
| Grant date | May 28, 2019 |
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The invention provides an apparatus comprising a wide bandwidth resonating structure based on a primary split ring resonator having a plurality of additional split ring resonators bounded by the primary split ring resonator. The invention provides a method for optimizing the placement and size of the additional split ring resonators to achieve the desired bandwidth for the overall resonator structure.
Opening claim text (preview).
What is claimed is: 1. A resonator, comprising: a primary conductor having a first end and a second end and being substantially annular shaped, disposed on a substrate; a plurality of secondary conductors each having a first end and a second end and being substantially annular shaped, disposed on said substrate and bounded by said primary conductor; a plurality of tertiary conductors each having a first end and a second end and being substantially annular in shape, disposed on said substrate and bounded by said primary conductor, wherein said tertiary conductors are determined in dimension according to an iterative computation of d = a + b + c ± 2 2 ab + bc + ca where a is the normalized curvature (i.e., 1/radius) of a first reference conductor; b is the normalized curvature (i.e., 1/radius) of a second reference conductor; c is the normalized curvature (i.e., 1/radius) of a third reference conductor; and d is the normalized curvature of each of a tertiary conductor generated in a current iteration; and wherein said tertiary conductors are determined in location according to an iterative computation of: d ( X 4 + Y 4 i ) = a ( X 1 + Y 1 i ) + b ( X 3 + Y 3 i ) + c ( X 3 + Y 3 i ) ± 2 2 a ( X 1 + Y 1 i ) b ( X 2 + Y 2 i ) + b ( X 2 + Y 2 i ) c ( X 3
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